Roof Replacement Cost UK 2026: How Much Does a New Roof Cost?

Roof replacement cost for a standard semi-detached house in the UK is typically £5,500 to £12,000. A small terraced house can come in under £5,000. A large detached property with a complex roof structure, hipped sections, or natural slate can exceed £18,000. The average across all property types is around £8,500.

For a strip and re-tile with concrete interlocking tiles, roof replacement cost per square metre runs from around £75/sqm in the North East to £120/sqm in London, with the Midlands at £89/sqm sitting on the national average. Those rates include scaffolding. Measure the roof slope rather than the floor area of the house, because a pitched roof always covers more surface than the ground it sits on.

A two-bed terrace has roughly 40 to 50 m² of roof, and a full strip and re-tile usually costs £4,000 to £6,500. Terraces are cheaper than most house types because the roof is small and often a simple gable shape with no hipped sections. The one thing that can push the price up is access: on a tight row of terraces, getting scaffolding in place is harder and the scaffolder may charge more for it.

Like-for-like roof covering replacement is usually permitted development, so no planning permission is needed. If you live in a conservation area or a listed building, check with your local planning authority first - the materials and appearance may need to match what's already there. Any structural changes to the roof timbers need Building Regulations approval, whatever your planning status.

The average lifespan of a roof depends almost entirely on what it is covered with. Concrete roof tiles typically last 30 to 50 years with proper maintenance. Clay tiles and natural slate can last 60 to 100 years or more if laid correctly. Felt flat roofs last around 10 to 20 years depending on the type (torch-on felt at the lower end, GRP fibreglass at the upper end). A well-installed modern flat roof with quality membrane can last 25 years or more.

The most obvious signs are damp patches on ceilings or in the loft, missing or slipped tiles, cracked ridge tiles, and daylight visible from the loft space. Moss and lichen growth can cause tiles to lift over time, which is worth keeping an eye on. A sagging roof line usually means a structural problem rather than just a surface one. A few slipped tiles can often be sorted with a repair rather than a full replacement - get a roofer up to have a proper look before agreeing to anything.

For smaller areas - a garage or single-storey extension, say - a flat roof replacement is usually cheaper, typically £2,800 to £5,500 versus the higher end of pitched tile costs. The catch is lifespan: a well-laid pitched roof lasts twice as long as most flat roofs and needs less maintenance over its life. On larger areas the cost gap narrows quite a bit, so it's worth getting quotes for both if your situation allows it.

For most UK homes, concrete interlocking tiles are the sensible default. They last 30 to 50 years, cost a fraction of slate, and need very little upkeep. Clay tiles look a bit more traditional and can outlast concrete, but cost noticeably more. Natural Welsh slate is beautiful and can last well over a century if properly maintained - but it costs two to three times the price of concrete. For flat roofs, GRP fibreglass has become the go-to material, mainly because the seamless finish means fewer leak points than older felt systems.

A semi-detached strip and re-tile typically takes 3 to 5 working days, once the scaffolding is up. A detached house with hipped sections or chimney stacks usually runs 5 to 7 days. Scaffolding goes up the day before work starts and comes down a day or two after the roofers finish. You will hear them working but the house stays habitable throughout.

Yes, in almost all cases. The work happens outside via scaffolding - the roofers aren't coming through the house. It's noisy, and there will be some mess on the day the old tiles come off, but you can stay put. If structural work means part of the roof needs to be left open overnight, a good roofer will tell you in advance and sheet it over properly. It's worth asking about this when you get quotes.

Early spring and early autumn tend to be the best value. Summer is peak season, roofers are booked up, and prices reflect it. Winter work is possible and plenty of roofers carry on through it, but cold weather affects how mortar sets and how adhesives cure, and a job that keeps getting rained off drags on longer than it should. Booking a few weeks ahead in a quieter month usually gets you better availability and a keener price than ringing round in July.

It depends on what caused the damage. Buildings insurance normally covers sudden one-off events such as storm damage, a fallen tree, or impact damage, and a claim in those circumstances is worth pursuing. What it does not cover is wear and tear: a roof that has simply reached the end of its life is your bill, not the insurer's. Photograph the damage before anyone touches it and ring your insurer before arranging repairs, because most policies want to see the damage or send a loss adjuster before work goes ahead.

For a straightforward strip and re-tile of your own half of the roof, no. Where it gets more involved is the party wall between you: if the work means cutting into it or altering it, the Party Wall etc. Act 1996 applies and you have to serve notice on your neighbour first. Scaffolding is the other thing to sort out early, because if it needs to stand on their land or overhang their garden, you need them to agree to it. Telling them what is happening and roughly how long it will take costs nothing and heads off most of the arguments.