Read this before you ask anyone to price your garage. It sets two named cost guides side by side, explains what moves a garage roof price, and lists what a written quote should state.
Garage roofs are the awkward size. They are small enough that the price feels as if it ought to be simple, and varied enough that two garages on the same road can cost very differently. A single brick garage with a flat felt roof is one job. A double garage with a pitched concrete-tile roof, a gable end and a shared wall is another. Published guides reflect that by giving wide ranges rather than single numbers.
The pages below set out those ranges, name where they come from, and explain the things that decide where a particular garage lands inside them. None of the figures is our price. They are typical UK ranges from third parties, and they tell you roughly where a quote should sit, nothing more. Anyone pricing a garage from Westgate to Whitstable faces the same spread of garage types, and the same need to look at the roof first.
The roof types are covered one by one under our garage and asbestos roofs service. This page sits above them, and starts with the price.
What is the average price to replace a garage roof?
There is no single average that fits every garage, and the guides that publish figures give ranges for that reason. MyJobQuote, in a garage roof guide dated 26 October 2026, gives a replacement cost "between £750 and £3,500". The width of that range is itself the answer.
Which? publishes a narrower picture for one specific garage. Its guide, based on a survey of 11 traders gathered in November 2025, covers a single garage of 6m x 3m. For felt it gives £1,400 to £3,500, and for other materials with new boards it gives £1,950 to £4,000. Which? says the prices include labour and materials but exclude VAT.
| Guide | Roof | Range |
|---|---|---|
| MyJobQuote, Oct 2026 | Garage roof | £750 to £3,500 |
| Which?, Nov 2025 | 6m x 3m, felt | £1,400 to £3,500 |
| Which?, Nov 2025 | 6m x 3m, other materials | £1,950 to £4,000 |
Which? adds that prices are likely to sit at the high end if you live in London or the South East. HomeBuilding makes the same point about labour rates. Both are talking about a region that takes in Thanet and the rest of Kent, so the upper half of the Which? ranges is the likelier home for a Margate or Ramsgate garage. A double garage, or one with a shared wall, will often sit above the figure quoted for a single garage, since there is more roof to cover.
Why two guides will not agree
Cost guides draw on different sources. Which? surveyed 11 of its Trusted Traders. MyJobQuote publishes its own averages. Each is sound within its own method, and none is a quote for your garage.
The gap shows in the bottom of the ranges. Which?'s £1,400 is for one defined garage, 6m x 3m, in felt. The two start from different places, so their floors differ, and neither is wrong.
Use the guides in these ways:
- to see roughly where a quote should sit, not to prove it is right
- to ask what is included when a price is far below the range
- to ask what is unusual about the garage when a price is far above it
Per-square-metre rates are a trap here. MyJobQuote gives EPDM at around £60 per square metre. Separately, Checkatrade gives EPDM rubber repairs at £120-£170 per m², exclusive of VAT, up to a maximum of 3m². Neither can be multiplied by a garage's area to produce a total, and that repair rate stops at 3m². A garage roof is small, and its details are a big share of the work.
The lesson is to read a published range as a map of the territory. It shows where prices are found, not where yours will be, and the survey of your own garage, its deck, its edges and its access, is what places your roof on it.
What moves a garage roof price
Inside the published ranges, a handful of things decide where a particular roof sits. Most of them can be seen at the survey, which is why the survey comes before a price rather than after it.
The size of the roof is the obvious one, but shape matters nearly as much. A rectangle is straightforward. A garage with a step, a bay or a return wall has more edges to detail, and edges are where time goes.
The deck is the next factor. If the boards beneath the old covering are sound, they stay. If they have rotted, they are replaced, and that moves the figure; the Which? range for other materials is stated with new boards included.
Other things that push a price one way or the other:
- the number of layers of old covering to be stripped and taken away
- access: a garage at the back of a long drive or down a narrow lane takes more carrying
- scaffolding, which is priced after a survey and depends on whether it stands on the highway or inside your boundary
- the material chosen, since felt, EPDM, GRP and sheet roofs each cost differently
- the gutter, fascia and any upstand that must be renewed with the roof
Kent County Council issues the licence when scaffolding stands on the highway, under Highways Act s169, with the scaffolding firm making the application. A garage at the end of a private drive may never meet that question.
The materials that set the price
The covering is the biggest choice you control. Each material has its own typical life, and two lifespan guides are worth reading alongside the cost, since a cheaper covering that is replaced twice can cost more than a dearer one that is replaced once.
| Covering | HomeBuilding | Less |
|---|---|---|
| Felt | 10-15 years | 10 to 20 years |
| EPDM rubber | 25-30 years | 30 to 50 years |
| GRP | 25-30 years | 25 to 40 years |
These are ranges for a typical roof, not promises, and Less last updated its guide on 27 October 2026. A longer-lived covering often costs more on the day, and whether it repays that depends on how long you will own the garage and what else you plan to do to it.
If the plan is a conversion, the covering is chosen together with the insulation underneath it, and our guide to the roof on a garage conversion covers that side. For felt, EPDM and the rest, our other garage roof guides describe each material on its own, including how each one fails and what a repair looks like.
Corrugated sheet roofs are a separate case. MyJobQuote gives asbestos roof removal at around £2,750 and an asbestos survey at £325, and a garage found to have asbestos is priced after the survey on that basis, with the removal and disposal rules for Kent worked through first. That work cannot be priced from a guide at all.
Repair or replace: the money question
A full replacement is not always the right spend. Where damage is local, a repair costs less and leaves the sound parts of the roof alone. Where the covering has failed across the whole roof, repair after repair costs more than it saves.
MyJobQuote's roof maintenance guide of 6 October 2026 gives an average repair at around £650 in 2026. Its emergency roofer guide puts storm repairs from around £300, and its £1,200 or more is for extensive storm damage only. These figures describe roofs in general, not garages in particular, so they set a scale and no more. A garage with a failing roof and sound boards is in a different position from one where the roof has been neglected for years and the boards have followed it.
The decision usually turns on four questions:
- Is the damage in one place, or across the whole roof?
- Is the deck dry and firm beneath it?
- How old is the covering, against the typical life for its material?
- Has it been repaired before, and did the repair hold?
If the answers are one place, dry, middle-aged and no, a repair is the better buy. If they are everywhere, soft, old and yes, replacement is, and the survey tells you which applies. Photos of your own roof go with it, so the reasoning rests on something you have looked at.
Our guide on a leaking garage roof goes through how a leak is traced before either route is chosen.
Reading a written quote for a garage roof
The quote you receive from us is one written total price, given after the survey. Whoever you ask, there are points worth checking in what you are sent, since a quote is a document you may rely on later.
- It names the covering and, where the maker has a data sheet, the product.
- It states whether VAT is included.
- It says whether scaffold is included, or whether you must arrange it.
- It says what happens to the deck: kept, or replaced where it has failed.
- It says the old covering is taken away.
Citizens Advice recommends getting written quotes from at least 3 traders. Compare what each covers before comparing totals. A price that is lower because the deck, the gutter or the scaffold is left out has not saved you anything.
Your consumer rights apply to the contract. Agreed at your house after a survey, it counts as an off-premises contract with a 14 day cancellation period, and any earlier start needs your own request, made in writing. Section 49 of the Consumer Rights Act 2015 sets reasonable care and skill. Citizens Advice runs the consumer helpline on 0808 223 1133.
Tidy working and waste taken away belong in the quote as plain statements, not as extras. A garage roof job leaves old felt, rotted boards and offcuts, and who removes them is worth knowing before the first day, and a good quote says it in a sentence. If the answer is that you will need to hire a skip, that is part of the cost.
