Knowledge Base > Asbestos Garage Roof Replacement Cost Guide 2026
Asbestos Garage Roof Replacement Cost Guide 2026
Key Highlights:
Typical Asbestos Garage Roof Replacement Cost in the UK: £2,200 – £4,800
Factors That Influence the Cost: Size, Disposal Costs, Labour Costs, Replacement Material
Installation Timeframe: 1-2 Days
Asbestos Surveys: Not Legally Required for Asbestos Roof Replacement
If you already know (or strongly suspect) your garage roof contains asbestos, the next question you likely have is – how much does it cost to replace it?
You’re not alone. Based on recent asbestos data by Danmarque, up to 80% of garage roofs in the UK today still contain asbestos.
In this comprehensive guide, we breakdown the costs for an asbestos garage roof replacement and explain everything that affects the final price. We give specific examples and important information so you’re fully prepared to replace your asbestos roof.
- Average Cost for an Asbestos Garage Roof Replacement
- What Factors Influence the Cost to Replace an Asbestos Garage Roof?
- Asbestos Garage Roof Removal vs Replacement
- The Cost of NOT Replacing the Asbestos Roof
- Get an Accurate Cost to Replace Your Asbestos Garage Roof
- Examples of Asbestos Garage Roof Replacements
- Asbestos Surveys & Testing
- Regulations & Safety Considerations
- Can You Replace an Asbestos Garage Roof Yourself?
- Mythbusting Asbestos Garage Roof Replacements
- The Replacement Process and How to Choose a Reputable Contractor
- Frequently Asked Questions
Average Cost of Asbestos Garage Roof Replacement
The average cost of an asbestos garage roof replacement in the UK is between £2,200 – £4,800. Below, we break down how much you can expect to pay depending on whether you have a single garage or double garage:
Cost Breakdown by Factors
The table below breaks down the individual costs of an asbestos garage roof replacement to help you understand what influences the final price:
(Average cost estimates are taken from 6,000+ garage roof replacement projects completed from 2020-2025 by Danmarque Garages)
Common Questions:
Should I Replace My Asbestos Garage Roof?
If your asbestos garage roof looks visibly damaged, leaking or cracked, asbestos fibres may be released if the roof is disturbed. In these cases, taking prompt action – such as professional replacement or removal – is strongly advised to reduce the health risks.
Is it Illegal to Have an Asbestos Garage Roof?
Although asbestos was banned in the UK in 1999 – meaning it can no longer be used, sold or imported – it is not illegal to have asbestos on your property, including in a garage roof.
Is Your Garage Roof Asbestos?
Get a quote to replace your asbestos garage roof with a 100% watertight roofing system.
What Factors Influence the Cost to Replace an Asbestos Garage Roof?
1. Size
The size of the asbestos roof is the biggest factor affecting the overall cost.
Larger roofs require more replacement materials and involve a greater volume of asbestos that must be removed and disposed of safely, which increases the scope of the work.
2. Removal & Disposal
Asbestos is a hazardous material, so it must be removed, transported and disposed of in line with HSE guidelines.
However, contrary to popular belief, this does not always mean asbestos roofs are more expensive to replace than a non-asbestos roof.
For example, at Danmarque, we do not charge extra for asbestos removal. Safe removal, transport and disposal are included as standard in every project.
3. Labour Costs
Labour is an important part of the overall cost as this is not a job that can be carried out safely as a DIY project.
The labour cost reflects the need for trained installers who follow the correct safety procedures, use appropriate PPE, and carry out the work in line with HSE guidelines.
4. Replacement Roof Specification
As with non-asbestos garage roof replacements, the final factor that influences the cost is the specification of the new roof.
While a range of garage roof materials exist, most reputable contractors will use steel roofing panels to replace asbestos garage roofs. Steel offers the best balance of value for money, durability and longevity, and is well suited to the UK climate.
Asbestos Garage Roof Removal vs Replacement
When researching asbestos garage roof costs, many articles and online guides only focus on the cost of asbestos removal.
While removal is an essential part of the process, removing the roof on its own doesn’t leave you with a usable garage.
Asbestos roof removal typically includes:
- Safe removal and disposal of the asbestos sheets
- Transport of hazardous waste
- Disposal at a licensed waste facility
Typical Cost of Asbestos Garage Roof Removal Only
- Between £600 – £1,000 for a single garage
- Between £1,000 – £1,400 for a double garage
When Does Removal Without Replacement Make Sense?
- The entire garage is being demolished or replaced
- The garage has structural issues that prevent roof replacement
- Asbestos is present in the walls or elsewhere as well as the roof
Why Replacement is the Better Long-Term Option
- Avoids leaving the garage exposed or unusable
- Reduces the need for multiple contractors
- Provides a safe, weatherproof garage immediately
- Avoids higher costs caused by re-roofing at a later date
This is why most reputable contractors offer both asbestos garage roof removal and replacement rather than removal alone.
Common Questions:
Do You Need Planning Permission to Replace an Asbestos Garage Roof?
In most cases, replacing a garage roof – including an asbestos cement roof – falls under ‘permitted development’, meaning planning permission is not required provided the replacement does not significantly alter the size, height or use of the structure.
However, additional restrictions may apply if your property is in a heritage or conservation area, or if your property is listed. In these cases, it’s always best to check with your local authority before proceeding.
Is an Asbestos Roof Dangerous if Left Alone?
An asbestos garage roof that is intact, sealed and in good condition generally poses a low risk if left undisturbed.
According to the guidance from the HSE, asbestos is most dangerous when its fibres are released into the air.
If there’s any risk of disturbance, visible damage, or planned work nearby, it’s strongly recommended to have the roof professionally removed or replaced to reduce potential health risks.
The Costs of NOT Replacing Your Asbestos Garage Roof
As important as it is to know the cost of replacing your asbestos garage roof, it is equally important to understand the long-term costs of not having it replaced too.
Health Risks
One of the main reasons homeowners choose to replace an asbestos garage roof is the associated health risks.
When asbestos is damaged, moved, or disturbed, the harmful fibres are released into the air and inhaled. Over time, this can lead to serious health conditions such as asbestosis, mesothelioma and asbestos-related lung disease.
Although asbestos garages pose a low risk when left undisturbed, extra care is required to avoid damaging ageing panels until the roof is safely replaced.
Water Ingress
Many asbestos garage roofs were installed 30-40 years ago and are now reaching the end of their usable lifespan.
Cracks, holes, and leaks are common at this stage and can allow water into the garage, damaging stored belongings and affecting the structure of the garage itself over time.
Left unresolved, this deterioration can make future repair or refurbishment more complex and expensive.
Condensation Issues
Asbestos cement roofs are highly prone to condensation, particularly in the cold and damp UK weather.
Because the roofs are often uninsulated, the warm air from the inside of the garage interacts with the cold roof from outside, leading to moisture forming that may drip onto the floor or your belongings.
Similar to a leaking roof, this can limit how effectively the garage can be used all year round.
Impact on Property Value and Saleability
An asbestos garage roof can also affect a property’s future sale or valuation.
Home buyers are often cautious about asbestos, and many choose to address the issue before or during a sale, leading to additional negotiation, delayed transactions, or a reduced sale price if the roof remains in place.
In fact, at Danmarque, we receive enquiries daily from potential home buyers and sellers, showing that an asbestos garage roof is an important consideration in the buying process.
Get an Accurate Cost to Replace Your Asbestos Garage Roof
At Danmarque, we assess your garage remotely, meaning you can receive a detailed quote without the need for a site visit.
Request a free, no-obligation quote by filling out a form or calling us on 0800 133 7318.
Examples of Asbestos Garage Roof Replacement Costs
Below are real examples of asbestos garage roof replacements completed across the UK.
These examples are intended to give a real-world indication of typical costs based on size, roof type and additional options selected.
Asbestos Garage Roof Replacement in Surrey (Mar 2025)
Pitched – Single Garage – £2,750.00
This customer in Surrey had a standard single garage with a pitched asbestos roof.
Additional options were chosen by the customer including tile-effect panels and light oak uPVC fascia.
Asbestos Garage Roof Replacement in Leeds (Jun 2025)
Flat – Single Garage – £2,280.00
This garage in Leeds had an asbestos roof with a size of 3.3m by 5.8m, which is a typical garage size in the UK.
The old asbestos roof was replaced with a new steel roofing system with black panels.
Asbestos Garage Roof Replacement in Crawley (Oct 2025)
Pitched – Double Garage – £4,750.00
This large double garage in Crawley had an asbestos roof replaced with a black steel roofing system to match recently installed uPVC fascia and garage doors.
These examples reflect typical asbestos garage roof replacement projects. Final costs will vary depending on garage size, roof type, and any additional specifications.
Asbestos Surveys & Testing – Are They Required?
An asbestos survey is not a legal requirement for replacing an asbestos garage roof.
In most cases, a reputable asbestos contractor can identify asbestos roofing materials based on their appearance, age, and other telltale signs. As a precaution, contractors operate on the principle of “if it looks like asbestos, treat it as asbestos”.
When an Asbestos Survey May Be Helpful
Although a survey is not required to replace the roof, it can be helpful in certain situations, particularly if asbestos is suspected in areas that are not immediately visible.
Examples include:
- Internal roof linings
- Garage walls or panels
- Additional structures connected to the garage
In these cases, an asbestos survey can provide peace of mind by confirming where asbestos is present before work begins.
If you’re unsure whether your garage roof contains asbestos, you can also refer to the common telltale signs or read our guide on how to tell if your garage roof is asbestos.
Cost of Asbestos Surveys & Testing
Professional asbestos surveys often range from £150-£300 depending on the size and scope of the survey.
Alternatively, asbestos testing kits can be purchased online for around £40 – £60.
For many homeowners, a full survey is not always necessary. However, it may be worth considering if asbestos is suspected beyond the roof itself or if you want additional reassurance before proceeding.
Regulations and Safety Considerations
Replacing an asbestos garage roof must be carried out in line with UK health and safety regulations to ensure the harmful fibres are not released into the environment.
In the UK, asbestos work is governed by guidance from the Health & Safety Executive (HSE), with additional requirements around waste handling set by local councils and environmental agencies.
Safe Removal and Disposal of Asbestos
Asbestos material must be handled and disposed of correctly once removed.
This includes:
- Removing asbestos sheets carefully to avoid breakage
- Double-wrapping and labelling asbestos waste
- Transport in a sealed, segregated container
- Disposal at a licensed asbestos waste facility
Any contractor disposing of asbestos must hold a valid waste carrier’s licence, and homeowners can request a waste consignment note as proof that the material has been disposed of legally and safely.
Protective Equipment and On-Site Safety
When asbestos roofs are removed, appropriate protective measures are required to minimize exposure risk:
- Disposable protective coveralls
- Single-use gloves
- Protective footwear or disposable boot covers
- Suitable respiratory protective equipment (RPE)
Following proper regulations and safety procedures ensures that asbestos garage roof replacement is carried out responsibly, with minimal risk to health and the surrounding environment.
For the most up-to-date guidance, homeowners should refer to the HSE website and their local council.
Can You Replace an Asbestos Garage Roof Yourself?
In the UK, while it is technically legal for a homeowner to remove an asbestos roof themselves, it is not recommended due to the health, safety and legal risks involved.
Asbestos becomes hazardous when disturbed. Cutting, breaking, drilling and handling asbestos cement sheets can release harmful fibres into the air, which can be inhaled and cause long-term health problems.
Legal and Disposal Requirements
Even when carried out by the homeowner, asbestos waste must still be handled, transported and disposed of safely.
Improper handling or disposal of asbestos can result in serious legal consequences such as fines or penalties.
Risks of DIY Replacement
Replacing an asbestos garage roof involves strict procedures set out by the Health and Safety Executive (HSE). These regulations must be followed, making DIY removal and replacement unrealistic for most homeowners.
Mistakes during removal can:
- Put yourself and others at risk of asbestos exposure
- Contaminate the surrounding area
- Lead to costly professional decontamination
- Increase the overall cost of the project if the garage structure is damaged
Even if asbestos removal was carried out safely, replacing the garage roof itself presents additional challenges.
Mistakes during the replacement stage can result in persistent leaks or condensation, premature roof failure, and additional repair costs later down the line.
For these reasons, asbestos garage roof replacement is best left to trained professionals with the correct safety equipment, licences and procedures.
Myth Busting Asbestos Garage Roof Replacement Costs
Danmarque Garages have been refurbishing UK garages for the last 15 years. During that time, we’ve inspected, quoted and replaced over 10,000 garage roofs.
That being said, there are several myths floating around online which give you the wrong information when it comes to the cost of an asbestos garage roof replacement project.
In this section, we tackle each of those myths so that you can budget for your asbestos garage roof replacement properly:
Myth: It Costs More to Replace an Asbestos Garage Roof Than Non-Asbestos
Truth: Replacing an asbestos garage roof does not always cost more than replacing a non-asbestos garage roof.
Many contractors include safe removal, transport and disposal as part of a standard replacement process, meaning the overall cost can be the same as non-asbestos roof replacement.
Myth: You Need an Asbestos Survey Before Replacing the Roof
Truth: An asbestos survey is not a legal requirement to replace an asbestos garage roof.
In many cases, experienced contractors can identify asbestos roofing material visually and operate on the principle of “if it looks like asbestos, it is treated as asbestos” to ensure safe handling.
That means that the cost for an asbestos survey is not required if you are planning to replace the roof anyway.
Myth: You Must Use a Local Contractor for Asbestos Roof Replacement
Truth: Asbestos garage roof replacement can be carried out by any licensed contractor who follow correct safety procedures and disposal regulations.
Whether a contractor is local or nationwide, asbestos waste must be transported and disposed of safely in the same regulated manner. Safe working practices, licensing, and compliance are more important than location.
Myth: It’s Unsafe to Use a Garage with an Asbestos Roof
Truth: In most cases, asbestos garage roofs pose a low risk when they are in good condition and left undisturbed.
Many garage roofs are safe so long as the asbestos remains undisturbed. However, once the roof becomes damaged, cracked, or starts to deteriorate, the risk increases and replacement should be considered.
The Asbestos Garage Roof Replacement Process (And How Long It Takes)
The garage roof replacement process – from when you find out the cost to when you have the new roof on – can be broken down into three stages:
1. Quotation Stage
The first step is to contact a reputable contractor who specialises in asbestos garage roof replacement and request a fixed quotation.
In many cases, this can be done remotely using measurements taken via satellite software or with photos and basic details about the garage.
This allows you to understand the cost before deciding whether to proceed.
2. Inspection Stage
The next step is for the contractor to carry out a site inspection before installation.
This is typically used to confirm measurements, identify any installation or access considerations, assess the structural condition of the garage, and determine safety requirements for removal and replacement.
3. Installation Stage
Once the work is booked in, the removal and replacement of an asbestos garage roof is usually completed within 1-2 days.
This stage includes:
- Safe removal of the asbestos roof
- Installation of the new, asbestos-free roof
- Safe disposal of all asbestos waste in line with regulations
How Long Does it Take From Start to Finish?
After factoring in quotation, material ordering, site inspection, installation, and disposal, most asbestos garage roof replacements have a total lead time of around 4-6 weeks.
How to Choose a Reputable Contractor
We’ve advised over 25,000 homeowners on their asbestos garage roof replacement project. Here are our tips on how to choose a reputable contractor for the works:
Get Multiple Quotes: We advise receiving at least 3 quotes to ensure the price is consistent and you’re not being ripped off by one company.
Check Reviews: Reviews and testimonials will help you to gauge if the contractor is honest in their practices and offers competitive prices.
Confirm Compliance and Waste Disposal Licenses: Contractors should follow guidance set out by the HSE and hold a valid waste carrier’s licence.
Avoid High-Pressure Sales Tactics: A reputable firm will give you time and space to make your decision.
Danmarque Garages Tip: Be wary of companies sending out a salesman to quote the works and requesting a deposit before they leave.
Frequently Asked Questions
Below, we’ve answered the most common questions we get from homeowners across the UK about asbestos garage roof replacements.
If you still have a question that we haven’t answered, speak to one of our experts today.
What is the Average Cost to Replace an Asbestos Garage Roof in the UK?
Can You DIY an Asbestos Garage Roof Replacement?
DIY is technically permitted in limited circumstances, provided the guidance set out by the Health and Safety Executive is followed.
However, the risk of accidental fibre release through incorrect handling is very real. It is strongly recommended that asbestos garage roof removal and replacement is carried out by a trained professional to ensure the material is removed safely and disposed of in accordance with UK regulations.
What is the Best Option for Replacing an Asbestos Garage Roof?
The best option for replacing an asbestos garage roof is using a reputable contractor and replacing the old roof with a steel roofing system.
This will ensure long-lasting durability and protection from UK weather with peace of mind that your old asbestos roof was removed and disposed of safely.
Can You Sell a House with an Asbestos Garage Roof?
There are no regulations around selling a property with an asbestos garage roof however, it could impact the value of the property if it is not removed.
At Danmarque, we receive enquiries regularly from home buyers who are looking at a property with an asbestos garage.
Is it Better to Remove an Asbestos Garage Roof or Replace it?
In most cases, full removal and replacement is the best option. While removal is an essential part of the process, removing the asbestos roof on its own still leaves you with an unusable garage.
Replacing the asbestos garage roof leaves you with a usable and watertight garage immediately, and reduces the need for multiple contractors (which might cost more over the long-run).
Can I Cover an Asbestos Garage Roof?
Yes, in some cases an asbestos garage roof can be covered rather than removed. This involves installing a new roofing system over the existing asbestos sheets to seal them in place and reduce the risk of fibre release.
However, this option does not remove the asbestos and can restrict future work of the garage.
If the asbestos panels are damaged, leaking or deteriorating, it is still recommended to do a full removal and replacement.
Do I Need a Licensed Contractor to Replace an Asbestos Garage Roof?
Although a license isn’t legally required to remove the asbestos, strict safety procedures must still be followed, and disposal must be handled by someone with a waste carrier’s license.
For this reason, it is recommended that the work is carried out by a trained professional and licensed contractor to ensure the material is handled and disposed of correctly.
What Does an Asbestos Garage Roof Look Like?
Asbestos cement sheets are typically corrugated panels with a grey finish and are often found on garages built before 1999.
They typically feel hard and brittle and may have moss or lichen growth due to its age. For more information on how to tell if your garage roof is asbestos, you can check out our guide here.
Get an Accurate Cost to Replace Your Asbestos Garage Roof
At Danmarque, we assess your garage remotely, meaning you can receive a detailed quote without the need for a site visit.
Request a free, no-obligation quote by filling out a form or calling us on 0800 133 7318.
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