Most sellers with an asbestos cement garage roof in reasonable condition have three realistic options: leave it and price it in, get it tested so buyers see facts rather than guesses, or replace it before listing (UK quotes in 2026 typically run from about £1,200 to £3,500 for a single garage roof, removal plus new roof). Whichever you choose, answer the property information forms accurately and ask your conveyancing solicitor how to word anything you know.
Key takeaways
- Corrugated cement garage roofs from before 2000 often contain asbestos, but only a lab sample confirms it.
- 2026 cost guides: asbestos roof removal about £950–£3,750 (average £2,100); single-garage removal plus new roof about £1,200–£3,500 in trade answers.
- Buyers' reactions vary: some ignore it, others knock the cost off their offer.
- Removing asbestos cement is usually non-licensed work, but it still needs trained people and proper disposal.
- Disclosure: answer the TA6 form accurately and take your solicitor's advice. This isn't legal advice.
Will an asbestos garage roof put buyers off?
It depends on the buyer and the roof's condition. A seller with a 1969/70 concrete garage asked exactly this on Mumsnet ("Will it put buyers off?") and got split answers [1]:
- "The leaks would put me off, not the asbestos itself."
- "Yes it would put me off."
- "We dropped our offer price by the amount it would cost to fix it."
An estate agent on a business forum described the common outcome: "More often than not we will neg a reduction and leave it to the buyer to sort once in" [2]. In other words, the roof is more likely to cost you some negotiation than to sink the sale, but a leaking, broken or unknown roof gives buyers more room to push.
The buyer's RICS survey will usually flag it anyway. RICS says that if its surveyor sees suspected asbestos materials, the report "should properly emphasise the suspected presence" of them [3]. So "say nothing and hope" rarely works.
Is my garage roof actually asbestos?
Corrugated grey cement sheets on garages, sheds and carports are a classic asbestos cement (AC) product. HSE says asbestos can be present in "any building built or refurbished before 2000" [4], and the Mumsnet seller's husband's view that removal would be "£££" came without ever testing it [1].
You can't confirm it by eye. HSE: "The only way to confirm if a suspect material contains asbestos fibres is to obtain and analyse a sample of it" [5]. A single sample of the roof sheet, taken by a surveyor or via a kit and analysed by a UKAS-accredited lab, is usually enough for a garage roof. See Artex: test one sample or survey the whole house? for the kit-versus-surveyor trade-offs, and how to check an asbestos surveyor.
Sellers worry that once you know, you know. A Mumsnet poster considering testing asked "would I have to declare it to a prospective buyer" [6]. That's a question for your solicitor (below), but a clear result also removes the "unknown" that buyers tend to price pessimistically.
Disclose, remove or price it in: what are the options?
| Option | What it involves | Indicative cost (2024–2026) | Likely buyer reaction | Watch out for |
|---|---|---|---|---|
| Leave it, say nothing beyond the forms | Roof stays; buyer's survey flags it | £0 upfront | Possible renegotiation; some buyers won't care [1] | Leaks or damage make it worse; answer forms accurately |
| Test it and share the result | One sample, lab analysis, short report | DIY kit £20–£40 per sample [7]; surveyor visit costs more | Facts instead of guesswork; negotiation narrows | A positive result is information you'll have to handle properly |
| Encapsulate / seal | Coating to bind a sound roof | About £33 per m² average [8] | Mixed; it's still asbestos | Only suits sheets in good condition |
| Remove and replace the roof | Sheets removed, wrapped, disposed of; new roof fitted | Removal £950–£3,750 (avg £2,100) [8]; single garage all-in £1,200–£2,500 or £1,800–£3,500 [9] | Removes the issue; adds a selling point | Keep the waste paperwork |
| Remove the whole garage | Specialist dismantles and disposes of the garage | Seller reports: £800; £960 inc. VAT; £1,500; £2–3k [1] | Some buyers prefer the space | May change parking or planning matters |
| Price it in | Reduce asking price or accept a lower offer | Often the replacement cost [1] | Buyers who "dropped our offer price by the amount it would cost to fix it" [1] | Get a quote first so you know the real figure |
Indicative only: figures are from 2026 cost guides, 2026 trade answers and 2024 homeowner reports. Price depends on roof size, access, condition, the new roofing material, disposal and VAT. Always get written, itemised quotes.
How much does it cost to remove and replace an asbestos garage roof in 2026?
Breaking down the 2026 figures:
- Checkatrade (price table updated April 2026): asbestos roof removal "£950 to over £3,750", average £2,100 [8].
- Trade answer, March 2026, single garage: removal and disposal £400–£900, new roof £700–£1,600, overall £1,200–£2,500; a standard 15–20m² garage around £1,400–£1,900 all-in [9].
- Trade answer, April 2026, 3m × 6m garage: removal and disposal only £800–£1,500 (sometimes £2,000+), full job with new roof £1,800–£3,500 (sometimes about £4,500) [9].
- Homeowners in 2024: £800 and £960 including VAT to remove a whole garage; other figures of £1,500 and £2–3k [1].
What moves the price: the roof area, whether sheets are broken, access for a vehicle, the replacement (felt, rubber/EPDM, GRP, fibre cement or metal sheets were all mentioned [9]), whether the rafters need replacing, and VAT. One trader advised checking for "a waste transfer note confirming licensed disposal" [9]: keep that paperwork, because a buyer's solicitor may ask what happened to the asbestos.
Can I remove an asbestos garage roof myself?
Asbestos cement is generally treated differently from higher-risk materials. Sheffield City Council's guidance says: "You can remove asbestos cement without a licence, providing you've had appropriate information, instruction and training" [10]. It also says the waste must be "double bagged and taped up", must not go in a general bin or builder's skip, and can be taken to designated household waste sites with asbestos cement containers [10]. Arrangements differ between councils, so check yours before you start.
Sprayed coatings, lagging and most asbestos insulating board are different: that work "should only be carried out by a licensed contractor" [10]. If you're not sure whether the roof is plain cement sheet (and in good condition), or if there's board lining the garage, get advice first. HSE's general advice for homes is not to repair or remove asbestos materials yourself without training [4].
For a sale, a professionally removed roof with invoice and waste paperwork is easier to show a buyer than a DIY job.
Do I have to declare an asbestos garage roof on the TA6 form?
This is the part to take to your solicitor, and we won't pretend to answer it for you.
What we could verify:
- The Law Society's TA6 Property Information Form is the standard set of seller questions in England and Wales and forms part of the contract pack sent to the buyer's conveyancer. The sixth edition "became mandatory for conveyancers to use on 30 March 2026", according to a solicitors' firm's summary [11].
- The previous (fifth) edition added material information including "building safety: providing details of any defects or hazards at the property" [12].
- We could not confirm the exact wording of any asbestos question in the current edition. Ask your solicitor which questions apply and how to answer them.
Practical approach (not legal advice): don't guess, don't over- or under-state. If you have a lab result, removal invoice or waste note, give copies to your solicitor. If you've never tested it, say what you actually know. A buyer's survey will very likely flag the roof anyway [3], so accurate answers now avoid awkward questions later.
Which option should I choose? A quick decision tree
- Is the roof leaking, cracked or broken? Yes → get removal and replacement quotes now; damage is what puts buyers off most [1]. No → go to 2.
- Do you know whether it's asbestos? No → consider one sample before listing, so buyers negotiate on facts. Yes → go to 3.
- Is the replacement cost small compared with your price and timeline? Yes → replacing can remove a negotiation point. No, or you're short of time → keep a written replacement quote and be ready to price it in.
- Have you got paperwork? Pass test results, invoices and waste notes to your solicitor.
FAQ
Will an asbestos garage roof put buyers off? Some buyers, yes; others say "the leaks would put me off, not the asbestos itself" [1]. More often it leads to a price negotiation than a lost sale [2].
How much does it cost to remove an asbestos garage roof? 2026 guides put asbestos roof removal at about £950–£3,750 (average £2,100) [8]. Trade answers for a single garage, including a new roof, range from about £1,200 to £3,500 [9].
Is it legal to sell a house with asbestos? Nothing we found requires removal before sale, and HSE says sound materials in homes are often best left in place [4]. How you disclose it is a question for your solicitor.
Do I have to declare the asbestos garage roof when selling? Answer the property information form accurately and ask your solicitor how. We could not verify a specific asbestos question on the current TA6 edition [11] [12].
Should I test the garage roof before selling? A single lab-analysed sample is cheap compared with the price reduction a buyer might ask for "just in case". It gives both sides facts.
Can I take asbestos garage roof sheets to the tip? Some councils accept double-bagged asbestos cement at designated sites [10]. Rules, limits and charges vary, so check your council first.
Next step
Need a sample, a garage survey or a pre-sale check? Use the free survey-type selector and budget planner, describe the garage in a short brief, then request quotes. Sending an enquiry doesn't guarantee quotes or a match. Buying instead? Read what to do when the RICS survey says asbestos may be present.
Please note: this article is general information, not legal, financial or health advice. For disclosure and the TA6 form, speak to your conveyancing solicitor. For removal, use a competent, trained contractor and check your council's disposal rules and HSE guidance.
Sources
- Selling a period property with an asbestos garage roof – Mumsnet (2024)
- Asbestos surveys in the property buying process – UK Business Forums (2017)
- Description of the RICS Home Survey – Level 2 – RICS
- Asbestos FAQs – HSE
- The duty to manage asbestos in buildings: Arrange an asbestos survey – HSE
- Sample testing for asbestos in Artex ceiling – Mumsnet (2026)
- Asbestos survey cost – less.co.uk (updated 27 Oct 2026)
- Asbestos removal cost – Checkatrade (price table April 2026)
- How much to remove asbestos garage roof and replace? – MyJobQuote (2026)
- Removal of asbestos from your home – Sheffield City Council
- An introduction to the Law Society TA6 Property Information Form, 6th edition – Farleys Solicitors
- Material information included in TA6 Property Information Form – The Law Society
Independent general information. Requirements and prices depend on scope, locality, technical standards and current regulations. Verify critical details with qualified professionals and relevant authorities.