How do I know if my garage roof is asbestos?
Corrugated cement roofs on garages built before 2000 very commonly contain asbestos cement — the grey “big six” wave profile with moss growth is the classic look. A quick sample test confirms it for certain.
Is an asbestos garage roof dangerous?
In good condition, the fibres are locked in the cement and risk is low. Cracked, drilled or weathered sheets — or clearing the moss off with a jetwash — can release fibres, which is when it needs dealing with.
Can I remove it myself?
Legally a homeowner can remove asbestos cement from their own domestic garage, but we’d strongly advise against it: safe handling, sheeting, transport and licensed disposal sites make DIY a false economy. Fly-tipped asbestos also carries heavy fines.
What does removal cost?
Typically £950–£3,750 for a garage roof depending on size, access and whether the structure comes down too — fixed quote, with disposal and paperwork included.
What happens to the waste?
It’s double-wrapped, consigned as hazardous waste and disposed of at a licensed facility — you get the consignment note for your records.
Is it safe to jet-wash an asbestos garage roof?
No — never, under any circumstances. Jet-washing blasts the cement surface apart and fires asbestos fibres into the air across your garden and your neighbours’ — it’s one of the most common and most serious DIY mistakes with asbestos. If the roof is dirty or mossy, leave it alone; if it’s reached the point of needing work, that’s the point to price up
removal.