The short answer
Asbestos from a garage roof must be double-wrapped, labelled and carried by a registered waste carrier to a permitted site, with a hazardous waste consignment note completed at the household. It cannot go in a normal skip, household bin or car boot. The contractor who removes it normally arranges all this as part of the job, and you should ask to see the paperwork afterwards.
Why disposal is a separate step
Corrugated cement sheeting is the form of asbestos most often met on a garage in a domestic setting. Left intact and undisturbed it is a low risk, but once it is broken, drilled or dropped, fibres can be released into the air. Anything put up or refurbished before 2000 should be treated as suspect, in the HSE's view, until a test says otherwise.
That is why a garage that has stood since the 1970s or 1980s deserves a careful look before anybody takes a hammer or a drill to the roof.
Removal and disposal are therefore two distinct stages. The first is taking the sheets off the roof in a way that avoids breaking them, which sits in the HSE's non-licensed category so long as the sheets are treated gently throughout. The second is getting the waste to a place that can lawfully take it.
A tidy result on the roof means little if the sheets end up in the wrong place afterwards, so the paperwork matters as much as the work with the ladders.
Wrapping, labelling and carrying
Sheets are lowered by hand rather than thrown, kept as whole as possible and stacked on a pallet or wrapped in heavy-duty polythene. Small pieces and debris go into strong asbestos waste bags that are sealed and labelled. Everything stays covered while it waits on site, away from children, pets and the neighbour's boundary.
The load is then collected by a vehicle suitable for the task. Because the carrier is moving other people's waste, the firm has to appear on the waste carrier register. Defra describes carrying construction waste for others as an upper tier activity, and the Environment Agency keeps a public register you can search by name. Do not hand the waste to anybody who cannot be found on it.
Ask the contractor before the job starts where the waste will go, and how long it will stay on your drive. A good answer is specific and short, and it names the site that will receive the load rather than saying only that it goes to the tip.
The consignment note
Household waste usually escapes hazardous waste paperwork, but asbestos is the exception. GOV.UK guidance on consignment notes says the exemption for domestic hazardous waste excludes asbestos waste. A contractor who produces or collects asbestos at a home must consign it, completing the note as the waste producer.
In practice the note travels with the load. The contractor writes down a description, the quantity and the carrier, and it is signed at each stage until the receiving site accepts the waste. Ask for a copy when the job finishes. It is your proof that the material left the property lawfully, and it protects you if anybody asks questions later, for example when you sell. Keep it with your house papers.
What not to do with it
Do not put asbestos in an open builder's skip, a bin bag or the back of a car, and do not leave it behind the garage because it seems harmless. Dumping it illegally is a serious matter, and you want a paper trail that shows where yours went. Breaking sheets into smaller pieces to make them fit is exactly what turns a low-risk material into a hazard.
If sheets have already cracked, or you are unsure what they are, read our guide to fibre cement sheets first. Where the roof is a flat felt covering being replaced, the question may not arise at all, and our page on felt garage roof repair shows what is involved. Metal sheeting is different again, and is covered under metal garage condensation.
Cost and our approach
MyBuilder's asbestos removal guide, updated on 21 August 2026, puts a single garage roof removal at £350 to £1,295 and a double garage at £650 to £1,800. Checkatrade suggests budgeting £950 to £3,750 for an asbestos garage roof, including disposal. Both are national ranges, and your total depends on size, access and condition.
If you plan to go further, an old flat garage can become a pitched roof, and the wider job is described under garage roof replacement. Our visit records the sheets in photographs and the quote then arrives in writing. Rubbish leaves with us when the roof is done, and our ten years of workmanship cover are put on paper. For a conversation, call 01793 626096, send a WhatsApp message or fill in the form.
Who is responsible if something goes wrong
The householder does not carry out the disposal, but they do not lose interest in it either. The contractor producing the waste completes the consignment note, and the carrier and receiving site have their own duties. Even so, a homeowner who is handed a bin liner of broken sheets by a stranger and told it is all sorted has good reason to ask more questions.
Simple checks protect you. Ask for the carrier's name, search it on the public register, and ask for the copy of the note with the site's name on it. A reputable firm will not mind any of this, and will usually offer the paperwork before you ask.
If neighbours are close, a brief word beforehand is polite, since people worry when they see white-suited workers and wrapped sheets on a drive.