[{"data":1,"prerenderedAt":1016},["ShallowReactive",2],{"blog-re-roofing-upgrade-loft-insulation":3,"blog-related-re-roofing-upgrade-loft-insulation":359},{"id":4,"title":5,"author":6,"body":7,"date":346,"description":347,"extension":348,"image":349,"meta":350,"navigation":351,"path":352,"seo":353,"stem":354,"tags":355,"__hash__":358},"blog\u002Fblog\u002Fre-roofing-upgrade-loft-insulation.md","Re-roofing? Upgrade the Loft Insulation at the Same Time","Better Roofing",{"type":8,"value":9,"toc":332},"minimark",[10,17,20,23,28,39,42,46,54,64,77,81,89,103,106,109,113,116,136,144,148,151,187,194,203,207,216,225,234,238,241,244,255,263,267,281,288,292,298,304,310,316,320],[11,12,13],"p",{},[14,15,16],"em",{},"Last reviewed: October 2026. Rules described here apply in England; Wales, Scotland and Northern Ireland have their own building regulations.",[11,18,19],{},"If you are replacing your roof covering, plan to upgrade the loft insulation in the same job: in England a full re-roof normally counts as renovating a \"thermal element\", and the building regulations then expect the roof's insulation to be brought up to a set standard where that is practical and cost-effective. Doing it while the scaffolding is up and the loft is already disturbed is also usually the cheapest and least disruptive time to do it.",[11,21,22],{},"This guide explains what the rules say, what the work typically involves, and what to ask the roofers who quote for your job.",[24,25,27],"h2",{"id":26},"why-does-re-roofing-affect-your-insulation-at-all","Why does re-roofing affect your insulation at all?",[11,29,30,31,38],{},"The ",[32,33,37],"a",{"href":34,"rel":35},"https:\u002F\u002Fwww.planningportal.co.uk\u002Fpermission\u002Fcommon-projects\u002Froof\u002Fbuilding-regulations-re-roofing\u002F",[36],"noopener","Planning Portal's guidance on re-roofing"," says that in most situations replacing the roof on an existing building will need Building Regulations approval, and that \"as a roof is defined as a thermal element, the work to re-cover a roof should also include for improving the thermal insulation properties of the roof.\"",[11,40,41],{},"In plain terms: a roof is one of the parts of your home that keeps heat in, so when you renew most of it, the regulations treat it as a chance to make it perform better rather than putting it back as it was.",[24,43,45],{"id":44},"when-do-the-rules-kick-in","When do the rules kick in?",[11,47,48,53],{},[32,49,52],{"href":50,"rel":51},"https:\u002F\u002Fwww.gov.uk\u002Fgovernment\u002Fpublications\u002Fconservation-of-fuel-and-power-approved-document-l",[36],"Approved Document L, Volume 1",", the official guidance on energy efficiency in homes in England, says the whole of a thermal element should be upgraded when either:",[55,56,57,61],"ul",{},[58,59,60],"li",{},"more than 50% of the surface of that element (here, the roof) is renovated, or",[58,62,63],{},"the work is a \"major renovation\", meaning more than 25% of the surface area of the building's whole external envelope is renovated.",[11,65,66,67,71,72,76],{},"Patching a few slipped tiles or ",[32,68,70],{"href":69},"\u002Fservices\u002Froof-repairs\u002Fleak-repairs","repairing a leak"," does not reach those thresholds. Stripping and re-covering the whole roof usually does. Our ",[32,73,75],{"href":74},"\u002Fblog\u002Fhow-much-does-a-new-roof-cost-uk","guide to new roof costs"," covers the same thresholds and the option of using a roofer who can self-certify the work through a competent person scheme.",[24,78,80],{"id":79},"what-standard-does-the-roof-need-to-reach","What standard does the roof need to reach?",[11,82,83,84,88],{},"Approved Document L gives a target U-value (a measure of how much heat passes through) of ",[85,86,87],"strong",{},"0.16 W\u002Fm²K"," for a pitched roof when the roof covering is renewed and there is no living space in the loft. Its examples of how to get there are:",[55,90,91,97],{},[58,92,93,96],{},[85,94,95],{},"If the existing loft insulation is less than 50mm, in poor condition, or will be disturbed by the work:"," provide loft insulation of about 250mm of mineral fibre or cellulose fibre, laid between and across the ceiling joists, or loose fill or an equivalent.",[58,98,99,102],{},[85,100,101],{},"If the existing insulation is in good condition, between 50mm and 100mm thick, and won't be disturbed:"," top it up to at least 250mm.",[11,104,105],{},"The document also allows for real-world limits. If reaching 0.16 is not technically or functionally possible, or would not pay for itself within 15 years, the roof should be upgraded to the best standard that is practical and does pay back within 15 years. Where the loft is already boarded and the boards are staying, it says the practicality of the insulation work needs to be considered.",[11,107,108],{},"For a room in the roof (a loft conversion), the same target applies but the insulation goes at rafter level instead, which is a more involved job.",[24,110,112],{"id":111},"why-do-it-at-the-same-time-as-the-roof","Why do it at the same time as the roof?",[11,114,115],{},"Even where the regulations don't strictly require it, combining the two jobs makes sense:",[55,117,118,124,130],{},[58,119,120,123],{},[85,121,122],{},"Access is already there."," The roofers are working on the roof structure and often going in and out of the loft anyway.",[58,125,126,129],{},[85,127,128],{},"The loft is already disturbed."," Old insulation is often trodden down, dirty or moved during re-roofing. Approved Document L treats insulation \"likely to be significantly disturbed or removed\" as a reason to provide new insulation, not just a top-up.",[58,131,132,135],{},[85,133,134],{},"One set of checks."," Building control or the roofer's competent person scheme will be looking at the work anyway, so the insulation can be checked as part of the same job.",[11,137,30,138,143],{},[32,139,142],{"href":140,"rel":141},"https:\u002F\u002Fenergysavingtrust.org.uk\u002Fadvice\u002Froof-and-loft-insulation\u002F",[36],"Energy Saving Trust"," puts the lifespan of correctly installed loft insulation at around 40 years, so it is worth getting right while the roof is open.",[24,145,147],{"id":146},"how-much-does-it-cost-and-what-could-you-save","How much does it cost, and what could you save?",[11,149,150],{},"The Energy Saving Trust's figures (last updated May 2026) for a typical professional installation in Great Britain are:",[152,153,154,167],"table",{},[155,156,157],"thead",{},[158,159,160,164],"tr",{},[161,162,163],"th",{},"Job",[161,165,166],{},"Typical installation cost (GB)",[168,169,170,179],"tbody",{},[158,171,172,176],{},[173,174,175],"td",{},"270mm of loft insulation, from none",[173,177,178],{},"£750",[158,180,181,184],{},[173,182,183],{},"270mm of loft insulation, topping up from 120mm",[173,185,186],{},"£600",[11,188,189,190,193],{},"It estimates that topping up from around 120mm to 270mm could save around ",[85,191,192],{},"£17 a year"," on energy bills in Great Britain (£20 in Northern Ireland). A loft that starts with little or no insulation loses more heat, so the saving there is bigger. These are unsubsidised averages; a roofer or insulation installer will price your own loft.",[11,195,196,197,202],{},"For the different types of loft insulation, from mineral wool rolls to rigid boards, see ",[32,198,201],{"href":199,"rel":200},"https:\u002F\u002Fbetterlofts.uk\u002Fservices\u002Floft-insulation",[36],"Better Lofts' guide to loft insulation options",".",[24,204,206],{"id":205},"can-you-get-help-paying-for-it","Can you get help paying for it?",[11,208,209,210,215],{},"Possibly, depending on your income and where you live. In England, the government's ",[32,211,214],{"href":212,"rel":213},"https:\u002F\u002Fwww.gov.uk\u002Fapply-warm-homes-local-grant",[36],"Warm Homes: Local Grant"," can pay for improvements including loft insulation for privately owned homes with an Energy Performance Certificate (EPC) of D to G, usually where household income is £36,000 a year or less, or in certain postcode areas or benefit situations. Your local council runs the survey and organises the work.",[11,217,218,219,224],{},"The older schemes are closing: the government confirmed that the Great British Insulation Scheme ended on 31 March 2026 and that ECO4 ends on 31 December 2026 (",[32,220,223],{"href":221,"rel":222},"https:\u002F\u002Fwww.gov.uk\u002Fgovernment\u002Fconsultations\u002Fextending-the-eco4-end-date\u002Foutcome\u002Fextending-the-eco4-end-date-government-response-html",[36],"GOV.UK response, January 2026",").",[11,226,227,228,233],{},"A grant-funded installer will not normally be the same company as your roofer, so check timings before you book the roof. To see ",[32,229,232],{"href":230,"rel":231},"https:\u002F\u002Fukenergypartnership.co.uk\u002Floft-insulation-grants",[36],"whether you might qualify for help with loft insulation",", UK Energy Partnership has a separate guide.",[24,235,237],{"id":236},"what-about-ventilation-and-condensation","What about ventilation and condensation?",[11,239,240],{},"This is the part most likely to go wrong. The Energy Saving Trust warns that insulation makes the loft colder, which makes condensation more likely, and that you should not cover vents, grilles or airbricks. If you already have damp in the loft, it advises fixing the cause before adding insulation.",[11,242,243],{},"Approved Document L's examples for re-roofing all say the same thing: assess the condensation risk in the roof space and make provision under Part C of the Building Regulations, which deals with moisture. In practice, ask your roofer:",[55,245,246,249,252],{},[58,247,248],{},"Which underlay they plan to use, and whether it is breathable.",[58,250,251],{},"How the roof space will be ventilated, for example eaves or ridge vents.",[58,253,254],{},"How they will keep insulation from blocking the airflow at the eaves.",[11,256,257,258,202],{},"If you plan to board the loft for storage afterwards, the Energy Saving Trust notes that thick insulation can make boarding difficult and that mineral wool should not be squashed. Raised loft boarding is one way round it; see ",[32,259,262],{"href":260,"rel":261},"https:\u002F\u002Fbetterlofts.uk\u002Fservices\u002Floft-boarding",[36],"Better Lofts on loft boarding",[24,264,266],{"id":265},"questions-to-ask-when-you-get-roofing-quotes","Questions to ask when you get roofing quotes",[55,268,269,272,275,278],{},[58,270,271],{},"Will this job need building control approval, or will you self-certify it through a competent person scheme?",[58,273,274],{},"Does your price include bringing the loft insulation up to the standard in Approved Document L? If not, who will do it?",[58,276,277],{},"What will happen to the existing insulation while the roof is stripped?",[58,279,280],{},"How will the roof be ventilated once the extra insulation is in?",[11,282,283,284,202],{},"If you are not yet sure whether you need a new roof or a repair, start with our ",[32,285,287],{"href":286},"\u002Fblog\u002Fsigns-your-roof-needs-replacing","warning signs that a roof needs replacing",[24,289,291],{"id":290},"frequently-asked-questions","Frequently asked questions",[11,293,294,297],{},[85,295,296],{},"Do I have to upgrade my loft insulation when I replace my roof?","\nIn England, if you renovate more than 50% of the roof, Approved Document L expects the roof's insulation to be upgraded to a target U-value of 0.16 W\u002Fm²K where that is technically feasible and pays back within 15 years. Small repairs don't trigger it.",[11,299,300,303],{},[85,301,302],{},"How thick should loft insulation be?","\nApproved Document L's re-roofing examples use about 250mm of mineral fibre or cellulose fibre. The Energy Saving Trust says current building regulations recommend a minimum of 270mm for mineral wool; other materials need different depths.",[11,305,306,309],{},[85,307,308],{},"Can my roofer fit the insulation?","\nSome do, and some will bring in an insulation installer. Ask each roofer whether insulation is included in their quote so you are comparing like with like.",[11,311,312,315],{},[85,313,314],{},"Will extra insulation cause condensation in my loft?","\nIt can if ventilation is blocked or reduced. Ask how the roof space will be ventilated, and fix any existing damp first.",[24,317,319],{"id":318},"planning-a-new-roof","Planning a new roof?",[11,321,322,323,327,328,202],{},"Better Roofing doesn't fit roofs or insulation itself. ",[32,324,326],{"href":325},"\u002Fget-a-quote","Get free quotes from local roofers"," — tell us about the job, mention that you want the loft insulation upgraded too, and we'll find up to 3 local roofers who cover your area and ask them to contact you with a quote. It's free and there's no obligation. You can also read more about ",[32,329,331],{"href":330},"\u002Fservices\u002Fnew-roofs","new roofs and the materials available",{"title":333,"searchDepth":334,"depth":334,"links":335},"",2,[336,337,338,339,340,341,342,343,344,345],{"id":26,"depth":334,"text":27},{"id":44,"depth":334,"text":45},{"id":79,"depth":334,"text":80},{"id":111,"depth":334,"text":112},{"id":146,"depth":334,"text":147},{"id":205,"depth":334,"text":206},{"id":236,"depth":334,"text":237},{"id":265,"depth":334,"text":266},{"id":290,"depth":334,"text":291},{"id":318,"depth":334,"text":319},"2026-10-02","Why replacing a roof covering is the right moment to top up loft insulation, what the building regulations in England expect, and what it costs and saves.","md","\u002Fimages\u002Fproject-slate-roof.jpg",{},true,"\u002Fblog\u002Fre-roofing-upgrade-loft-insulation",{"title":5,"description":347},"blog\u002Fre-roofing-upgrade-loft-insulation",[356,357],"Guides","Insulation","-mLsFrSOCYK1iQF_QCjn4gP1HnwHicuC_TB7SjNvPRA",[360,616,855],{"id":361,"title":362,"author":6,"body":363,"date":346,"description":607,"extension":348,"image":608,"meta":609,"navigation":351,"path":610,"seo":611,"stem":612,"tags":613,"__hash__":615},"blog\u002Fblog\u002Fcould-your-old-roof-contain-asbestos.md","Could Your Old Roof Contain Asbestos?",{"type":8,"value":364,"toc":597},[365,370,373,376,380,389,423,426,430,433,448,452,461,464,473,477,480,507,520,524,527,535,543,547,550,558,560,566,572,578,584,588],[11,366,367],{},[14,368,369],{},"Last reviewed: October 2026. Based on guidance from the Health and Safety Executive (HSE).",[11,371,372],{},"Yes, it could, if your home was built or refurbished before 2000. Asbestos was used in UK buildings until it was banned in 1999, and on homes it can turn up in roof tiles and slates, roofing felt, soffits and fascias, gutters and downpipes, and the corrugated sheets often used on garages and outbuildings.",[11,374,375],{},"That doesn't mean you need to panic. The HSE's advice is that asbestos is a risk to health when its fibres get into the air and are breathed in, and that material in good condition is often best left alone. What matters is knowing it is there before anyone drills, cuts, breaks or removes it.",[24,377,379],{"id":378},"where-on-a-roof-can-asbestos-be-found","Where on a roof can asbestos be found?",[11,381,382,383,388],{},"The HSE's ",[32,384,387],{"href":385,"rel":386},"https:\u002F\u002Fwww.hse.gov.uk\u002Fasbestos\u002Fdiagrams.htm",[36],"diagram of where asbestos can be found in a home"," lists these on the outside of a house:",[55,390,391,397,402,407,412,418],{},[58,392,393,396],{},[85,394,395],{},"Asbestos insulating board (AIB) or asbestos cement soffits and fascias",", the boards under and along the edge of the eaves",[58,398,399],{},[85,400,401],{},"Roofing felt",[58,403,404],{},[85,405,406],{},"Asbestos cement roof tiles or slates",[58,408,409],{},[85,410,411],{},"Asbestos cement panels",[58,413,414,417],{},[85,415,416],{},"Profiled asbestos cement sheeting",", the corrugated grey sheets common on garages, sheds, porches and lean-tos",[58,419,420],{},[85,421,422],{},"Gutters and asbestos cement downpipes",[11,424,425],{},"The HSE also lists asbestos cement flues, sometimes found on domestic boiler systems, and asbestos cement \"undercloak\" beneath the roof overhang.",[24,427,429],{"id":428},"can-you-tell-by-looking","Can you tell by looking?",[11,431,432],{},"Not reliably. The HSE describes asbestos cement as \"ordinary cement mixed with asbestos\", a hard grey material, which is why it looks much like modern fibre cement. Of asbestos insulating board, which can be used for soffits, it says \"it is difficult to tell the difference between AIB items and non-asbestos equivalents.\"",[11,434,435,436,441,442,447],{},"The age of the house and of the roof covering is a useful clue, but the only way to know is to have a sample tested or a survey done. The National Asbestos Removal Centre explains ",[32,437,440],{"href":438,"rel":439},"https:\u002F\u002Fnationalasbestosremovalcentre.co.uk\u002Fasbestos-testing",[36],"how asbestos testing works"," and ",[32,443,446],{"href":444,"rel":445},"https:\u002F\u002Fnationalasbestosremovalcentre.co.uk\u002Fasbestos-survey",[36],"the different types of asbestos survey",", including the refurbishment and demolition survey, the type carried out before major building work.",[24,449,451],{"id":450},"is-asbestos-on-my-roof-dangerous","Is asbestos on my roof dangerous?",[11,453,454,455,460],{},"According to the ",[32,456,459],{"href":457,"rel":458},"https:\u002F\u002Fwww.hse.gov.uk\u002Fasbestos\u002Ffaq.htm",[36],"HSE's asbestos questions and answers",", if you are sure or strongly suspect your home contains asbestos, \"it is often best to leave them where they are – especially if they are in good condition and unlikely to get damaged.\" It suggests checking the condition from time to time.",[11,462,463],{},"The risk rises when the material is damaged or disturbed: drilled, cut, sanded or broken. The HSE says not to try to repair or remove asbestos yourself unless you have had training for this kind of work, and that your local council's environmental health officer can give advice.",[11,465,466,467,472],{},"There is also a separate, very immediate danger with asbestos cement roofs: you cannot stand on them. The HSE's task sheet on removing asbestos cement sheets warns that \"AC roofs are always fragile and cannot bear weight\", and its ",[32,468,471],{"href":469,"rel":470},"https:\u002F\u002Fwww.hse.gov.uk\u002Fconstruction\u002Fsafetytopics\u002Froofwork.htm",[36],"roof work guidance"," says all roofs should be treated as fragile until a competent person has confirmed they are not. Never climb onto a garage or outbuilding roof to inspect or clean it.",[24,474,476],{"id":475},"what-does-it-mean-if-im-planning-roof-work","What does it mean if I'm planning roof work?",[11,478,479],{},"If you're having a roof repaired, re-covered or replaced, the HSE asks homeowners to tell any builders or contractors about asbestos they know of before work starts, so it isn't disturbed by accident. Practical steps:",[481,482,483,489,495,501],"ol",{},[58,484,485,488],{},[85,486,487],{},"Tell each roofer what you know"," about the age of the roof and any materials you suspect, when you ask for quotes.",[58,490,491,494],{},[85,492,493],{},"Ask how they will deal with suspected asbestos",", including whether they will arrange testing before stripping the roof.",[58,496,497,500],{},[85,498,499],{},"Check who will do the asbestos part."," The HSE says most work on asbestos cement can be done without an HSE licence by workers with the right information, instruction and training. Higher-risk materials, including most work on asbestos insulating board, need a contractor licensed by HSE.",[58,502,503,506],{},[85,504,505],{},"Ask about disposal"," (see below), and make sure it is included in the price.",[11,508,509,510,514,515,519],{},"If you are replacing ",[32,511,513],{"href":512},"\u002Fservices\u002Fguttering-fascias\u002Ffascia-soffits","fascias and soffits"," or ",[32,516,518],{"href":517},"\u002Fservices\u002Fguttering-fascias\u002Fgutter-replacement","gutters and downpipes"," on an older house, raise it then too, because these are on the HSE's list.",[24,521,523],{"id":522},"replace-overclad-or-leave-alone","Replace, overclad or leave alone?",[11,525,526],{},"For asbestos cement roof sheets, the HSE's own task sheet asks whether the sheets can be overlaid with non-asbestos material instead of removed, fixed to the existing supports and avoiding drilling through the asbestos cement. Leaving sound material in place, overcladding it, and replacing it are all options; which is right depends on the condition of the roof and what you want from it.",[11,528,529,530,202],{},"If the sheets are removed, the HSE says they should be taken down as intact as possible rather than broken up. For garage and outbuilding roofs specifically, see the National Asbestos Removal Centre's ",[32,531,534],{"href":532,"rel":533},"https:\u002F\u002Fnationalasbestosremovalcentre.co.uk\u002Fresources\u002Fblog\u002Fasbestos-garage-roof-removal-guide",[36],"guide to asbestos garage roof removal",[11,536,537,538,542],{},"For a house roof covered in asbestos cement slates, a full re-roof will usually mean removing them. The roofer's quote should say how the old slates will be handled and disposed of. If you're choosing what goes back on, our ",[32,539,541],{"href":540},"\u002Fblog\u002Fslate-vs-clay-vs-concrete-roof-tiles","comparison of slate, clay and concrete tiles"," may help.",[24,544,546],{"id":545},"how-is-asbestos-roofing-disposed-of","How is asbestos roofing disposed of?",[11,548,549],{},"The HSE says asbestos waste must be disposed of as hazardous waste and must not be mixed with normal household waste. It should go to a licensed disposal site, wrapped so that fibres can't escape; intact asbestos cement sheets should be double-wrapped in heavy polythene rather than broken into smaller pieces.",[11,551,552,553,202],{},"Councils in England and Wales give information on asbestos and its disposal locally, and some offer a collection service or accept small amounts at particular sites. You can ",[32,554,557],{"href":555,"rel":556},"https:\u002F\u002Fwww.gov.uk\u002Fasbestos-in-home",[36],"find your council's asbestos information on GOV.UK",[24,559,291],{"id":290},[11,561,562,565],{},[85,563,564],{},"When was asbestos banned in the UK?","\nThe HSE says asbestos was widely used in homes and other buildings until 1999, when it was banned. Any home built or refurbished before 2000 could contain it.",[11,567,568,571],{},[85,569,570],{},"Are old grey roof slates asbestos?","\nThey might be. The HSE lists asbestos cement roof tiles and slates as a material found on houses. Asbestos cement looks very similar to modern fibre cement, so a sample needs to be tested to be sure.",[11,573,574,577],{},[85,575,576],{},"Can a roofer remove an asbestos cement garage roof?","\nThe HSE says most work on asbestos cement can be done without a licence, but only by workers who have had the right information, instruction and training. Ask the contractor how they are trained for it and how they will dispose of the waste.",[11,579,580,583],{},[85,581,582],{},"Should I remove asbestos from my roof before selling?","\nThere's no general rule that you must. The HSE's advice is that asbestos in good condition is often best left in place and monitored. Get it identified so you can tell buyers and contractors accurately.",[24,585,587],{"id":586},"need-roofing-work-on-an-older-home","Need roofing work on an older home?",[11,589,590,591,593,594,202],{},"Better Roofing doesn't carry out roofing or asbestos work itself. ",[32,592,326],{"href":325}," — tell us about the job and anything you suspect is asbestos, and we'll find up to 3 local roofers who cover your area and ask them to contact you with a quote. It's free and there's no obligation. See also our guide to ",[32,595,596],{"href":74},"new roof costs",{"title":333,"searchDepth":334,"depth":334,"links":598},[599,600,601,602,603,604,605,606],{"id":378,"depth":334,"text":379},{"id":428,"depth":334,"text":429},{"id":450,"depth":334,"text":451},{"id":475,"depth":334,"text":476},{"id":522,"depth":334,"text":523},{"id":545,"depth":334,"text":546},{"id":290,"depth":334,"text":291},{"id":586,"depth":334,"text":587},"Where asbestos can turn up on and around a UK roof, how to find out if yours has it, and what that means for repairs and re-roofing. Based on HSE guidance.","\u002Fimages\u002Fproject-flat-roof.jpg",{},"\u002Fblog\u002Fcould-your-old-roof-contain-asbestos",{"title":362,"description":607},"blog\u002Fcould-your-old-roof-contain-asbestos",[356,614],"Safety","XiyuEN_HF-_2zVvwq4WkiwjgF3qKRCj_l0qP36QLkDs",{"id":617,"title":618,"author":6,"body":619,"date":846,"description":847,"extension":348,"image":848,"meta":849,"navigation":351,"path":74,"seo":850,"stem":851,"tags":852,"__hash__":854},"blog\u002Fblog\u002Fhow-much-does-a-new-roof-cost-uk.md","How Much Does a New Roof Cost in the UK in 2026?",{"type":8,"value":620,"toc":831},[621,626,629,633,636,708,711,716,723,726,746,750,754,757,761,764,768,771,775,787,791,794,798,801,820,824],[11,622,623],{},[14,624,625],{},"Last reviewed: September 2026. Prices are typical ranges from UK cost guides, not quotes.",[11,627,628],{},"Replacing a roof is one of the biggest jobs a homeowner pays for, so it helps to know roughly what to expect before you ask for quotes. This guide pulls together typical 2026 figures from published UK cost guides (Checkatrade, MyBuilder and MyJobQuote). The guides don't always agree, so treat every figure as a range, and expect a roofer's quote for your own roof to differ.",[24,630,632],{"id":631},"typical-costs-by-roofing-material","Typical Costs by Roofing Material",[11,634,635],{},"The covering you choose makes a big difference. These are typical ranges for the covering supplied and fitted, per square metre. Scaffolding, stripping the old roof and VAT may be extra, depending on how the roofer quotes:",[152,637,638,651],{},[155,639,640],{},[158,641,642,645,648],{},[161,643,644],{},"Material",[161,646,647],{},"Typical cost per m² (supplied and fitted)",[161,649,650],{},"Typical lifespan",[168,652,653,667,680,694],{},[158,654,655,661,664],{},[173,656,657],{},[32,658,660],{"href":659},"\u002Fservices\u002Fnew-roofs\u002Fconcrete-tiles","Concrete tiles",[173,662,663],{},"£35–£120",[173,665,666],{},"Around 50–60 years",[158,668,669,675,678],{},[173,670,671],{},[32,672,674],{"href":673},"\u002Fservices\u002Fnew-roofs\u002Fclay-tiles","Clay tiles",[173,676,677],{},"£40–£160",[173,679,666],{},[158,681,682,688,691],{},[173,683,684],{},[32,685,687],{"href":686},"\u002Fservices\u002Fnew-roofs\u002Fslate","Natural slate",[173,689,690],{},"£95–£220",[173,692,693],{},"Often 100 years or more",[158,695,696,702,705],{},[173,697,698],{},[32,699,701],{"href":700},"\u002Fservices\u002Fnew-roofs\u002Fflat-roofing","Flat roofing (EPDM\u002FGRP)",[173,703,704],{},"£80–£180",[173,706,707],{},"Around 15–30 years",[11,709,710],{},"The wide spread is real: one guide's \"average\" can sit near another guide's upper figure. Imported slate, such as Spanish slate, is usually at the lower end of the slate range and Welsh slate at the upper end.",[712,713,715],"h3",{"id":714},"what-does-that-mean-for-a-typical-home","What Does That Mean for a Typical Home?",[11,717,718,719,722],{},"Cost guides put a full re-roof of a typical three-bedroom semi-detached house at roughly ",[85,720,721],{},"£5,000 to £16,000"," in 2026. A simple gable roof usually costs less than a hipped roof with valleys, and slate costs more than tiles.",[11,724,725],{},"On top of the covering itself, budget for:",[55,727,728,734,740],{},[58,729,730,733],{},[85,731,732],{},"Scaffolding:"," roughly £650–£1,300, depending on the house and how long it is needed",[58,735,736,739],{},[85,737,738],{},"Stripping and disposing of the old roof:"," roughly £1,000–£2,500 if it isn't already in the quote",[58,741,742,745],{},[85,743,744],{},"VAT:"," check whether the prices you are given include it",[24,747,749],{"id":748},"factors-that-affect-the-price","Factors That Affect the Price",[712,751,753],{"id":752},"scaffolding-and-access","Scaffolding and Access",[11,755,756],{},"Most re-roofing needs scaffolding. The cost depends on the size and height of your home and how easy it is to reach. Narrow alleys, conservatories and sloping ground can all add to it. If scaffolding has to go on the pavement or road, a licence from the council is needed — usually arranged by the scaffolding firm, but check.",[712,758,760],{"id":759},"roof-shape-and-features","Roof Shape and Features",[11,762,763],{},"A simple gable roof is cheaper to re-cover than a roof with hips, valleys, dormers, rooflights and chimneys. Each extra detail adds time and materials. Solar panels may need to be taken off and refitted, which is a separate cost.",[712,765,767],{"id":766},"where-you-live","Where You Live",[11,769,770],{},"Labour costs vary around the UK, and cost guides report higher prices in some areas, including London.",[712,772,774],{"id":773},"what-is-under-the-tiles","What Is Under the Tiles",[11,776,777,778,781,782,202],{},"Once the old covering is off, the roofer may find rotten battens or damaged timbers. Repairs to the structure add to the budget, so ask how any extra work would be priced before you agree the job. On homes built or refurbished before 2000, some roofing materials may contain asbestos, which affects how they are removed and disposed of; see ",[32,779,780],{"href":610},"could your old roof contain asbestos?"," and the National Asbestos Removal Centre's guide to ",[32,783,786],{"href":784,"rel":785},"https:\u002F\u002Fnationalasbestosremovalcentre.co.uk\u002Fasbestos-basics\u002Fidentifying-asbestos",[36],"identifying asbestos in a home",[712,788,790],{"id":789},"building-regulations-and-insulation","Building Regulations and Insulation",[11,792,793],{},"In England you don't normally need a building control application to repair or re-cover a roof if less than 25% of the whole building envelope and less than 50% of the roof is affected. Above those thresholds, or if the work is structural, or the new covering is 15% or more heavier than the old one, building regulations apply, and you may need to bring the roof insulation up to current standards. A roofer registered with a competent person scheme for roof coverings can self-certify the work instead of you applying to building control. Rules differ in Wales, Scotland and Northern Ireland.",[24,795,797],{"id":796},"how-to-get-an-accurate-price","How to Get an Accurate Price",[11,799,800],{},"Online figures are a starting point, but every roof is different. The only way to get an accurate price is for a roofer to look at your roof, check the condition of the structure, and give you a written, itemised quote. When you compare quotes, check:",[55,802,803,806,809,817],{},[58,804,805],{},"What is included (scaffolding, strip-out, skips, VAT, making good)",[58,807,808],{},"Which materials and underlay they will use, and any manufacturer guarantee",[58,810,811,812],{},"Whether they will deal with building control, or self-certify through a competent person scheme — you can search the ",[32,813,816],{"href":814,"rel":815},"https:\u002F\u002Flabcfrontdoor.co.uk\u002Ffind-a-competent-person",[36],"LABC Front Door competent person register",[58,818,819],{},"That they have public liability insurance, and what written guarantee they give on their workmanship",[24,821,823],{"id":822},"ready-to-find-out-what-your-new-roof-will-cost","Ready to Find Out What Your New Roof Will Cost?",[11,825,826,827,830],{},"Better Roofing doesn't fit roofs itself. ",[32,828,829],{"href":325},"Send us an enquiry"," — it's free and there's no obligation — and Better Home Hub will try to introduce you to a suitable local roofer who can look at your roof and quote.",{"title":333,"searchDepth":334,"depth":334,"links":832},[833,837,844,845],{"id":631,"depth":334,"text":632,"children":834},[835],{"id":714,"depth":836,"text":715},3,{"id":748,"depth":334,"text":749,"children":838},[839,840,841,842,843],{"id":752,"depth":836,"text":753},{"id":759,"depth":836,"text":760},{"id":766,"depth":836,"text":767},{"id":773,"depth":836,"text":774},{"id":789,"depth":836,"text":790},{"id":796,"depth":334,"text":797},{"id":822,"depth":334,"text":823},"2026-03-15","Typical UK re-roofing costs in 2026 from published cost guides, what is and is not included, and the factors that change the final price.","\u002Fimages\u002Fblog-new-roof-cost.jpg",{},{"title":618,"description":847},"blog\u002Fhow-much-does-a-new-roof-cost-uk",[853,356],"Costs","MGDkd5IIoM4XVUqloNtfUYecpw9vC8CvgiSDqeVr31w",{"id":856,"title":857,"author":6,"body":858,"date":1007,"description":1008,"extension":348,"image":1009,"meta":1010,"navigation":351,"path":286,"seo":1011,"stem":1012,"tags":1013,"__hash__":1015},"blog\u002Fblog\u002Fsigns-your-roof-needs-replacing.md","7 Warning Signs Your Roof Needs Replacing",{"type":8,"value":859,"toc":996},[860,865,872,876,884,888,891,895,898,902,910,914,925,929,932,952,955,959,962,966,969,983,986,990],[11,861,862],{},[14,863,864],{},"Last reviewed: September 2026.",[11,866,867,868,202],{},"Your roof protects everything beneath it, yet most of us rarely think about it until something goes wrong. Catching problems early can save a lot of money — here are seven warning signs that your roof may need ",[32,869,871],{"href":870},"\u002Fservices\u002Froof-repairs","repairing or replacing",[24,873,875],{"id":874},"_1-missing-cracked-or-slipped-tiles","1. Missing, Cracked or Slipped Tiles",[11,877,878,879,883],{},"The most obvious sign of trouble. If you can see tiles that have slipped, cracked or gone missing, your roof is open to rain getting in. A few isolated tiles can usually be ",[32,880,882],{"href":881},"\u002Fservices\u002Froof-repairs\u002Ftile-replacement","repaired",", but widespread slipping across the roof suggests the fixings or battens underneath are failing, and a bigger repair or replacement may make more sense.",[24,885,887],{"id":886},"_2-daylight-visible-through-the-roof","2. Daylight Visible Through the Roof",[11,889,890],{},"On a bright day, go into your loft (safely, walking only on the joists or boards) and turn off the lights. If you can see pinpricks of daylight coming through the roof, water may be getting in too. Small gaps can sometimes be repaired, but if you see light in several places, the underlay may have failed.",[24,892,894],{"id":893},"_3-a-sagging-or-uneven-roofline","3. A Sagging or Uneven Roofline",[11,896,897],{},"Stand back and look at the ridge line. It should be straight and level. A dip, bow or sag can point to problems with the roof timbers — for example long-term water damage or inadequate support. Have it looked at by a roofer or surveyor soon.",[24,899,901],{"id":900},"_4-damp-patches-and-water-stains","4. Damp Patches and Water Stains",[11,903,904,905,202],{},"Damp patches on ceilings or walls, especially upstairs, often point to a roof leak. Check the loft for water staining on the timbers or underlay. Even small leaks can cause mould and timber rot over time. If mould has already appeared indoors, National Mould Experts explains ",[32,906,909],{"href":907,"rel":908},"https:\u002F\u002Fnationalmouldexperts.co.uk\u002Fmould-basics\u002Fcauses",[36],"the usual causes of mould in a home, from leaks to condensation",[24,911,913],{"id":912},"_5-a-cold-draughty-loft-space","5. A Cold, Draughty Loft Space",[11,915,916,917,921,922,202],{},"If your home feels harder to heat and the loft is cold and draughty, the insulation may be thin or the roof may be letting in air and damp. It is worth checking your loft insulation first — topping it up is usually far cheaper than roof work, and Better Lofts compares ",[32,918,920],{"href":199,"rel":919},[36],"the main types of loft insulation",". If you do re-roof, the work may need to bring insulation up to current standards under building regulations; see ",[32,923,924],{"href":352},"why re-roofing is a good time to upgrade loft insulation",[24,926,928],{"id":927},"_6-your-roof-is-getting-old","6. Your Roof Is Getting Old",[11,930,931],{},"Every roof covering wears out eventually. As a rough guide from UK cost guides:",[55,933,934,940,946],{},[58,935,936,939],{},[85,937,938],{},"Concrete and clay tiles:"," around 50–60 years with good installation and maintenance",[58,941,942,945],{},[85,943,944],{},"Natural slate:"," often 100 years or more, depending on the slate and the fixings",[58,947,948,951],{},[85,949,950],{},"Flat roofs (felt, EPDM, GRP):"," around 15–30 years, with traditional felt usually at the lower end",[11,953,954],{},"If your roof is getting close to these ages, it's worth having it looked at even if there are no visible problems, as the battens, fixings and underlay can wear out before the tiles do.",[24,956,958],{"id":957},"_7-heavy-moss-and-algae","7. Heavy Moss and Algae",[11,960,961],{},"A light covering of moss is common and not always a problem. Heavy moss can hold moisture against the tiles, lift their edges and block gutters. If moss is thick and widespread, have the tiles checked, and ask a roofer how any cleaning would be done safely for your type of tile.",[24,963,965],{"id":964},"repair-or-replace","Repair or Replace?",[11,967,968],{},"Not every problem means you need a new roof. As a general rule:",[55,970,971,977],{},[58,972,973,976],{},[85,974,975],{},"Repair"," if the damage is limited to a small area and the rest of the roof is in good condition",[58,978,979,982],{},[85,980,981],{},"Replace"," if problems are widespread, the roof is near the end of its life, or the structure underneath is failing",[11,984,985],{},"A roofer who has seen your roof can give you a recommendation. It's sensible to get more than one opinion on a full replacement, and to ask each roofer to explain why they recommend repair or replacement.",[24,987,989],{"id":988},"concerned-about-your-roof","Concerned About Your Roof?",[11,991,992,993,995],{},"Don't wait for a small problem to become an expensive one. Better Roofing doesn't inspect roofs itself. ",[32,994,829],{"href":325}," — it's free and there's no obligation — and Better Home Hub will try to introduce you to a suitable local roofer who can take a look and quote.",{"title":333,"searchDepth":334,"depth":334,"links":997},[998,999,1000,1001,1002,1003,1004,1005,1006],{"id":874,"depth":334,"text":875},{"id":886,"depth":334,"text":887},{"id":893,"depth":334,"text":894},{"id":900,"depth":334,"text":901},{"id":912,"depth":334,"text":913},{"id":927,"depth":334,"text":928},{"id":957,"depth":334,"text":958},{"id":964,"depth":334,"text":965},{"id":988,"depth":334,"text":989},"2026-03-10","How to tell when your roof needs a repair or a full replacement — the key warning signs every homeowner should know.","\u002Fimages\u002Fblog-signs-roof-needs-replacing.jpg",{},{"title":857,"description":1008},"blog\u002Fsigns-your-roof-needs-replacing",[356,1014],"Maintenance","otvq76hmR3GWtpp7MAlEFeRkKFWqqXKXmJKQ8vM5WmQ",1790933712504]