The short answer
Removing an intact asbestos cement garage roof is usually non-licensed work under HSE guidance, provided the sheets are carefully handled and not broken up. Work on damaged or broken-up sheeting becomes notifiable non-licensed work, which means telling the enforcing authority before it starts. Asbestos insulating board, found in some old soffits and panels, is mostly higher-risk work that only a contractor holding a licence from the HSE may remove. What counts is the material and how damaged it is.
What the HSE says about cement sheeting
The Health and Safety Executive sorts asbestos jobs into three bands. The top band needs a licence, the middle band is notifiable but non-licensed, and the bottom band is non-licensed. In the bottom band sits the removal of cement products, roof sheeting and rainwater goods among them, so long as the material is handled with care and not broken up. The HSE adds that weathered cement still qualifies when it is not otherwise substantially damaged.
That describes the corrugated sheets found on many garages. A licence is a specific permission for the highest-risk materials, and a garage roof in reasonable condition does not usually fall into that bracket. Anyone who tells you a licence is legally required for a sound cement garage roof is describing something other than the HSE position, and anyone who says they hold one for this job is making a claim you can check.
Non-licensed is a legal category and not a promise that the work is trivial. The sheets are still asbestos, and the method decides whether the job stays low risk.
When the work becomes notifiable
The position changes when sheets are substantially damaged or the removal method is likely to break them up. The HSE gives the example of dropping an asbestos cement roof. That kind of work is notifiable non-licensed work.
Whoever employs the workers must tell the enforcing authority before the job begins, and the HSE sets no minimum period of notice. They must also arrange medical examinations for workers, at least every three years, and keep registers of work, which are health records, for 40 years. Those duties fall on the business carrying out the work, not the householder, but they are a good reason to choose a contractor who understands the rules and can say which category your roof is in.
If your sheets are already cracked from age, a branch or a ladder, tell the contractor before they quote, and show photographs. It changes the method, the paperwork and sometimes the price, and it is far better raised at the start than discovered on the roof.
The same goes for sheets that have been painted, sealed or patched. Coatings do not change what the material is, and a patch may hide a crack, so tell the contractor about any past repairs you know of.
Training still counts
Non-licensed does not mean anyone with a ladder. The HSE expects asbestos cement tasks to be carried out by workers who are trained to recognise asbestos and work safely with it. That includes knowing how to keep sheets whole, how to avoid drilling or snapping them, how to protect people nearby and how to double-wrap and label the waste.
Cheap, rushed work is where fibres get released. The HSE page on this work stresses that trained people matter even when no licence is involved, and that is the question to put to anyone who quotes. Ask any contractor how the sheets will come off, what will happen if one cracks and who will carry the waste away. Our page on asbestos garage roofs follows the whole project from first look to final clearance, and the guide on whether your garage roof is asbestos helps you identify the material first.
Where a licence does arise
The material that does call for a contractor holding a licence is asbestos insulating board, usually shortened to AIB. External soffits are one of the places the HSE says it turns up, and most removal of it counts as higher-risk work. Telling AIB from a harmless lookalike by eye is difficult, as the HSE itself admits.
A boarded soffit under a garage eave is the classic example. The sheeting above may be perfectly ordinary cement, while the soffit below is a different product with different rules, so the two should never be assumed to match.
That matters on a garage because the roof sheets are only part of the picture. Fascias, soffits, internal linings and flue panels from the same era can be a different asbestos product from the sheeting. The sensible step is to have anything doubtful sampled before the job starts, and to keep the laboratory result with your property papers. Our page on what an asbestos test costs sets out typical survey prices, and it is far cheaper than discovering the wrong material halfway through.
How we handle the question with you
Insulating board goes to a firm that holds the licence, and any firm offering that work should show you its licence before it starts. On the visit we study the sheets, the fixings and the state of the edges, and photograph what we see. Our written quote then sets out the plan, and where the roof is unusual or the material doubtful it names the testing that must come first. You can also read how long a garage roof is expected to last on our garage roof lifespan page.
Once the job is finished the drive is swept, the sheets are gone and the guarantee on our workmanship, ten years long, is handed over in writing. To arrange a visit, ring 01793 626096, use WhatsApp or send the contact form. The wider job is described under garage roof replacement.