You look out at the garage and realise the roof has seen better days.
Perhaps it’s leaking.
Maybe one of the corrugated sheets has cracked.
Or you’ve bought an older property and the survey mentions something nobody particularly wants to read:
“Possible asbestos cement roof covering.”
Now you’re wondering:
Does it have to come off?
How much does asbestos garage roof removal cost?
Can I repair it instead?
Can I remove an asbestos garage roof myself?
And what on earth do you replace it with afterwards?
Asbestos cement roofing remains common on older garages, sheds, workshops and outbuildings across the UK. While an intact asbestos cement roof doesn’t automatically require removal, age, deterioration and plans for the building can eventually make replacement the sensible option.
Here’s what property owners need to know.
Does My Garage Roof Contain Asbestos?
Corrugated asbestos cement sheets were widely used on garages and outbuildings because they were durable, weather resistant and relatively inexpensive.
They’re particularly associated with older:
- Detached garages
- Prefabricated garages
- Workshops
- Garden buildings
- Sheds
- Agricultural buildings
- Commercial outbuildings
However, not every corrugated grey cement roof contains asbestos.
Modern fibre-cement products can look remarkably similar.
That means appearance alone isn’t enough to conclusively identify an asbestos-containing roof.
The property’s age, installation date and available records may provide clues, but professional sampling and analysis may be needed where confirmation is required.
What Does an Asbestos Cement Garage Roof Look Like?
Older asbestos cement roofing is commonly found in large grey corrugated sheets fixed across the garage roof structure.
Over time, the sheets may become:
- Weathered
- Discoloured
- Moss covered
- Brittle
- Cracked around fixings
- Damaged along edges
But none of those features confirms asbestos.
Trying to identify asbestos solely from photographs or appearance can be unreliable because non-asbestos fibre cement can look very similar.
If you’re planning to disturb or replace the roof, establishing what it’s made from beforehand is the sensible approach.
Is an Asbestos Garage Roof Dangerous?
Finding out your garage roof contains asbestos doesn’t mean you need to panic.
Asbestos cement contains asbestos fibres bound within a cement matrix. When sheets remain intact and in good condition, the potential for fibre release is considerably lower than with more friable asbestos-containing materials.
The concern increases when asbestos cement is:
- Broken
- Drilled
- Cut
- Sawn
- Crushed
- Heavily weathered
- Incorrectly removed
That’s why the condition of the roof and what you intend to do with it matter.
An intact roof that’s being left alone is a very different scenario from a badly damaged roof that’s about to be demolished.
Does an Asbestos Garage Roof Have to Be Removed?
No.
Asbestos doesn’t automatically have to be removed simply because it’s present.
If an asbestos cement roof is in good condition, isn’t likely to be disturbed and can continue to be appropriately managed, removal may not be immediately necessary.
However, replacement may become appropriate when:
- Sheets are damaged or badly deteriorated
- The roof regularly leaks
- The garage is being demolished
- Major refurbishment is planned
- The roof structure requires repair
- Solar panels or other equipment are being considered
- Continued maintenance would repeatedly disturb the material
- The property owner wants a longer-term roofing solution
The decision should be based on condition, future use and risk—not simply the presence of asbestos.
What If My Asbestos Garage Roof Is Leaking?
A leaking roof doesn’t necessarily mean the asbestos itself has suddenly become more dangerous.
But it does mean the roof requires attention.
Water ingress can damage:
- Timber roof structures
- Garage contents
- Electrical installations
- Internal finishes
And repeatedly attempting DIY repairs on an ageing asbestos roof can create additional opportunities for accidental disturbance.
If the roof is approaching the end of its useful life, continually patching leaks may ultimately make less sense than planning proper removal and replacement.
What If an Asbestos Roof Sheet Is Cracked?
A small crack doesn’t necessarily mean the entire garage needs demolishing.
But damaged asbestos cement shouldn’t simply be ignored.
Most importantly:
Don’t drill, grind, sand or cut the sheet in an attempt to repair it.
The condition and extent of the damage should be assessed so the most appropriate option can be determined.
Depending on the circumstances, that may involve management, repair or removal.
Can You Seal or Repair an Asbestos Garage Roof?
In certain circumstances, asbestos cement roofing can remain in place and be appropriately managed or treated.
Whether that’s sensible depends on factors including:
- Overall condition
- Extent of damage
- Remaining lifespan
- Number of previous repairs
- Future plans for the garage
There’s an important distinction between professionally managing an asbestos-containing material and repeatedly applying DIY fixes to an ageing roof.
If you’re repairing the same roof every winter, replacement may eventually provide the better long-term solution.
Can I Remove an Asbestos Garage Roof Myself?
This is one of the biggest Google questions surrounding asbestos garage roofs.
Some asbestos cement work can fall outside the category of licensed asbestos work, but that doesn’t mean it is risk-free or that normal building waste rules apply.
The work still requires appropriate controls, handling and disposal.
Removing sheets can involve:
- Working at height
- Fragile roofing materials
- Damaged sheets
- Difficult fixings
- Large, awkward panels
- Asbestos waste requirements
Trying to snap sheets so they’ll fit into a car or van is particularly problematic because breaking asbestos cement unnecessarily disturbs the material.
Professional removal also removes the rather significant problem of figuring out what to do with a stack of asbestos sheets once they’re on the ground.
Can Asbestos Garage Roof Sheets Go in a Skip?
Not in an ordinary general waste skip.
Asbestos-containing materials are subject to specific waste-handling and disposal requirements.
They shouldn’t simply be:
- Mixed with household rubbish
- Put into normal construction waste
- Fly-tipped
- Broken up to fit into bins
Professional asbestos contractors can ensure waste is packaged, transported and disposed of through appropriate authorised routes.
And yes, fly-tipping your garage roof behind a hedge is very much not the budget disposal option we’d recommend. 😂
What Happens During Professional Asbestos Garage Roof Removal?
The exact process will depend on the building and roof, but careful asbestos cement removal aims to keep sheets as intact as reasonably practicable and minimise unnecessary breakage.
A project may involve:
1. Site Assessment
The roof, access requirements and surrounding area are considered before work starts.
2. Safe Access
Appropriate arrangements are made for working at height and accessing fragile roof areas.
3. Controlled Removal
Sheets and fixings are removed using suitable methods designed to minimise damage.
4. Appropriate Packaging
Asbestos-containing waste is prepared for safe transportation.
5. Waste Disposal
Materials are transported to an authorised disposal facility in accordance with applicable requirements.
6. Handover
Once the asbestos roof has been removed, replacement roofing works can proceed.
Does the Whole Garage Need to Come Down?
Usually not just because the roof contains asbestos.
If the walls and supporting structure remain suitable, it may be possible to remove the asbestos-containing roof while retaining the garage itself.
However, older garages sometimes have additional asbestos-containing components, particularly prefabricated structures.
Before refurbishment or demolition, it makes sense to establish whether asbestos is limited to the roof or appears elsewhere in the building.
What Can Replace an Asbestos Garage Roof?
Once the old roof is removed, several modern roofing systems may be available depending on the garage structure, budget and intended use.
Potential options can include:
- Modern fibre-cement sheets
- Insulated roofing panels
- Metal roofing systems
- Lightweight roofing sheets
- Other suitable garage roofing products
A roofing contractor can advise on the most appropriate replacement system once the existing asbestos-containing material has been safely dealt with.
How Much Does Asbestos Garage Roof Removal Cost?
There isn’t one fixed price for removing an asbestos garage roof.
Costs vary considerably depending on the project.
Factors include:
Garage Size
A small single garage will involve considerably less material than a large double garage or workshop.
Amount of Asbestos
The quantity of roofing material affects labour, packaging, transport and disposal requirements.
Roof Condition
Intact sheets can be very different to extensively damaged or fragmented material.
Access
Restricted gardens, adjoining buildings and difficult vehicle access can complicate removal.
Height
Working-at-height requirements can affect the project.
Additional Asbestos Materials
Some garages contain asbestos elsewhere as well as within the roof.
Location
Transport and disposal arrangements can also influence cost.
For that reason, be wary of websites offering a universal “asbestos garage roof removal costs exactly £X” figure without knowing anything about your garage.
A site-specific quotation gives a much more meaningful answer.
Removal Cost vs Replacement Cost
There’s another distinction worth making.
Asbestos roof removal and new roof installation aren’t necessarily the same service or cost.
When budgeting, consider:
- Identification or sampling where required
- Asbestos roof removal
- Waste transportation and disposal
- Any structural repairs
- Installation of the replacement roof
Understanding the complete project from the beginning helps prevent unexpected costs later.
What If I’m Selling a House With an Asbestos Garage Roof?
An asbestos cement garage roof doesn’t automatically prevent a property from being sold.
However, potential buyers may ask:
- What condition is it in?
- Has it been tested?
- Does it leak?
- Will it require replacement?
- What might removal cost?
If the roof is badly deteriorated, dealing with it before sale may sometimes make the property more straightforward to market.
Alternatively, obtaining professional information can at least give buyers a clearer picture of what they’re dealing with.
Buying a House With an Asbestos Garage Roof?
Likewise, discovering an asbestos garage roof during the purchase process isn’t necessarily a reason to walk away.
These roofs are extremely common on older UK properties.
Instead, consider:
- Its condition
- Expected lifespan
- Whether replacement is already required
- Potential removal costs
- Future plans for the garage
That information can then form part of your overall property budget.
Don’t Wait Until the Roof Starts Falling Apart
One of the advantages of identifying an asbestos garage roof early is that removal can be planned.
Planned removal is generally much easier to manage than dealing with extensively damaged sheets following:
- Severe weather
- Structural failure
- Accidental impact
- Years of deterioration
If you already know the roof is reaching the end of its useful life, getting professional advice allows you to understand your options before it becomes an urgent problem.
Frequently Asked Questions
How do I know if my garage roof contains asbestos?
Older corrugated cement roofs may contain asbestos, but appearance alone cannot reliably confirm it. Professional sampling and laboratory analysis can establish whether asbestos is present where confirmation is required.
Does an asbestos garage roof have to be removed?
No. An intact roof in good condition may sometimes remain safely managed. Removal may become appropriate where the roof is damaged, deteriorating or affected by planned building works.
How much does asbestos garage roof removal cost?
Costs depend on the roof size, amount and condition of asbestos, access, working-at-height requirements, waste disposal and other site-specific factors. A professional quotation is the best way to obtain an accurate cost.
Can I remove an asbestos cement garage roof myself?
Certain asbestos cement work may not require a licensed asbestos contractor, but strict safety and waste requirements still apply. Working at height and handling large fragile sheets introduce additional risks, making professional removal a sensible option.
Can I put asbestos roof sheets in a normal skip?
No. Asbestos waste requires appropriate handling and disposal and shouldn’t be mixed with ordinary household or construction waste.
Is a leaking asbestos garage roof dangerous?
A leak doesn’t automatically mean asbestos fibres are being released, but deterioration or damage should be assessed and unnecessary disturbance avoided.
Can I replace just the asbestos roof and keep my garage?
Potentially, yes. If the garage structure remains suitable and asbestos is limited to the roof, the sheets may be removed before a new roofing system is installed.
Can you sell a house with an asbestos garage roof?
Yes. The presence of an asbestos cement garage roof doesn’t automatically prevent a property sale, although buyers may consider its condition and potential future removal or replacement costs.
Need Your Asbestos Garage Roof Removed?
Whether your old garage roof is leaking, cracked, deteriorating or simply ready to be replaced, MD Environmental can help you understand exactly what you’re dealing with.
Our services include:
- Asbestos Sampling & Testing
- Asbestos Cement Roof Removal
- Asbestos Surveys
- Safe Asbestos Waste Disposal
- Domestic & Commercial Asbestos Removal
- Garage, Shed & Outbuilding Asbestos Solutions
We’ll assess the condition and extent of the material and provide clear advice on the appropriate next steps.
Call: 0330 043 8778
Email: hello@md-env.com
Contact MD Environmental today for expert advice and a no-obligation quotation for your asbestos garage roof removal.
