Garage Roof Replacement Cost Guide 2026
What you really need to know is how much it’ll cost to replace your garage roof.
In this comprehensive guide to garage roof replacement costs, we explain everything that does (and does not) affect the price to replace your garage roof. We also give specific examples from projects like yours so that you know what to expect and can budget accordingly:
- Average Cost to Replace Your Garage Roof in the UK
- Factors that Influence The Cost of Your Garage Roof
- Find Out Your Exact Cost
- Myth Busting Garage Roof Replacement Costs
- The Cost of NOT Replacing Your Garage Roof
- Examples from Previous Projects
- How to Know if It’s Time to Replace Your Garage Roof
- Replacing an Asbestos Garage Roof and the Cost
- Garage Roof Replacement Process
- Budgeting Tips for a New Garage Roof
- Garage Roof Replacement Options and the Best Choice for You
- Frequently Asked Questions
What is the Average Cost to Replace Your Garage Roof?
Garage Roof Replacement Cost Breakdown
Common Questions:
Is it Cheaper to Replace or Repair a Garage Roof?
Can I Replace the Garage Roof Myself?
Factors That Influence the Cost of Your Garage Roof
There are 5 key factors that will influence the cost of your garage roof: the size of your garage, your new roofing material, removal costs, labour costs, and additional factors like structural complexity, access and location.
Read on to find out how each factor impacts the cost of your garage roof replacement.
1. Garage Roof Size
The size of your garage roof has the largest influence on how much it will cost for a replacement.
This is because it determines how much material that needs to be removed, transported and disposed of safely.
In addition to that, a larger garage means more materials need to be supplied to fit the new garage roof – such as a higher number of roof panels and at a larger size, additional timbers, uPVC fascia boards, and guttering lengths.
2. Roofing Material
Roofing panels, timber and uPVC are the three biggest material costs for a garage roof replacement.
However, the number one cost of the three are the roofing panels.
Garage roofs come in a range of different materials including felt, GRP, cement-fibre, EPDM rubber and profiled steel panels.
Whilst different garage roof materials have a range of costs, any reputable garage roof replacement firm will use industry standard galvanised steel roofing panels to replace your garage roof.
This is because they are the best value for money, last the longest, and are best suited for protecting your garage in the UK climate. They can also be installed to any type of existing roof structure.
3. Removal Costs
Removal costs are a large part of any garage roof replacement due to the heavy materials that need to be disposed of.
Not only that, but all waste must be removed, transported and disposed of safely at an accredited waste management center – particularly because there are so many asbestos garage roofs left in the UK.
At Danmarque Garages, only the amount of roofing material being removed affects the cost. We do not charge extra for removing asbestos.
4. Labour Costs
Contrary to popular belief, replacing a garage roof is not like replacing a house roof.
Whilst you may find dozens of local roofers to replace your house roof, the pool of contractors to choose from for your garage roof is much smaller, as this is a specialist procedure.
Like removal and material costs, labour costs are influenced by the size of the garage, as this affects how long the project will take and how many days are needed.
5. Additional Factors
Every garage is different, and that means there are a number of additional factors that may affect the cost of your garage roof replacement:
Your Garage is Adjoined to a Neighbouring Roof or House
If your garage roof is adjoined to another garage or building (such as your house), additional materials are required to ensure there is no water ingress where the two meet.
At Danmarque, we use specialist adjoining flashings to prevent water from leaking into your garage, which we do not charge extra for.
Structural Integrity and Complexity
The garage roof is integral to the structure of your garage. If there are any structural issues or complications that affect our ability to replace your roof safely, then this needs to be factored into the quote for your roof replacement.
For example, an aging garage comes not only with an aging roof, but aging timber joists, beams and structure.
If a contractor deems these to be unsecured, and likely to compromise the structural integrity of your garage, additional materials will need to be factored into your quote to prevent your garage from being compromised or unsafe.
Access and Location
If your garage has unique issues in terms of access additional adjustments may need to be made by the contractor.
This may include securing a skip on site, or budgeting more for transportation and disposal costs.
Removal of Ivy
If your garage has a lot of ivy growth, this will have to be removed first in order to replace the garage roof with a new steel alternative.
This will add to the cost of your project due to additional labour and disposal costs.
At Danmarque, we include this as part of your quote but give our customers the option to remove it themselves before installation.
You Need a Full Refurbishment Rather Than Just a Roof Replacement
Many UK garages are now decades old, particularly garages with asbestos or cement-fibre roofs that were built back in the 20th century.
As such, it’s common that not only the garage roof which is near the end of its days, but also the garage door, side door, windows, uPVC fascias and guttering.
If you’re looking to replace any of these parts of the garage, then this will affect your final quotation.
At Danmarque, we replace uPVC fascias and guttering for free on all garage roof replacement projects. We also offer a 10% discount on garage doors, windows and side doors when installed alongside the roof.
Additional Options
Want to Know the Exact Cost to Replace Your Garage Roof?
Simply fill in a form or call us on 0800 133 7318.
Myth Busting Garage Roof Replacement Costs
We’ve seen every type of garage there is, and have developed a reliable formula that allows us to provide a 100% accurate quotation without the need for an initial site inspection.
That being said, there are several myths floating around online which give you the wrong information when it comes to budgeting for your garage roof replacement project.
In this section, we tackle each of those myths so that you can find the most competitive price to replace your garage roof:
Myth: Pitched Garage Roofs Cost More Than Flat Garage Roofs
At Danmarque, both flat and pitched garage roofs are priced equally. The only time a pitched garage roof would cost more is if we deem that the existing framework which holds up your pitched roof needs to be replaced.
In most cases, we leave your existing timber framework in place.
Myth: An Asbestos Garage Roof Replacement Costs More Than Non-Asbestos
Contrary to popular belief, you will pay the same amount to replace your asbestos garage roof as a cement-fibre or metal garage roof.
Myth: It Costs Extra to Replace Your Fascia and Guttering
Fascia and guttering, for both flat and pitched garage roofs, are all part of the same garage roof system and should be replaced together (you wouldn’t want to fork out on a roof replacement only to have water flow into a failing gutter).
That’s why, at Danmarque, we include new fascia & guttering at no additional cost on all garage roof replacement projects.
Myth: You Need a Local Contractor to Replace Your Garage Roof
Many believe they need a local contractor to replace their garage roof, particularly if it is asbestos, because of the transportation and disposal of the existing material.
This is also not true.
Any garage roof material can be transported and disposed of safely with the use of a long wheelbase van.
When considering which contractor to choose, you should be prioritising their reputation, reviews, overall costs, and service guarantees over their locality. By looking at contractors across the UK, you will find more reputable companies and competitive quotes.
Myth: It is the Same as Replacing a House Roof
Replacing a garage roof is not the same as replacing a house roof, which is a good thing as house roofs can be very expensive!
It is a different skillset replacing a garage roof compared to a house roof. If a roofer claims they can do it for you – be cautious and ensure they have experience to back this up.
If you have an asbestos garage roof, you need to ensure you choose a contractor that not only follows safe working practices, but also holds the correct waste transportation license and capability to dispose of asbestos waste at an authorised site.
The Real Cost of NOT Replacing Your Garage Roof
Below, we detail the real costs of not replacing your garage roof, so you can compare the initial garage roof cost with its long-term value.
A Leaking Garage Roof and Water Ingress
This leads to cracks and holes appearing that ultimately allow water ingress into your garage.
As well as causing damage to your belongings (that you may need to replace or lose altogether), water ingress will also prevent you from making full use of your garage.
Long-term, these issues can cause structural damage and increase the likelihood of damp and mould to appear, that you may need to pay to fix in future. It is therefore more cost effective to act now than wait until later.
Condensation
Similar to a leak, bad cases of condensation can lead to water dripping onto belongings which can discourage you from storing valuables or using your garage for anything important.
We’ve seen many customers fork out hundreds on garage insulation costs, only to find the issue is still not resolved.
At Danmarque, all our garage roof replacements come equipped with DRIPSTOP anti-condensation membrane as standard. DRIPSTOP helps to prevent condensation from dripping inside of the garage and onto your belongings.
Theft and Loss of Belongings
If a thief were to break in and steal your valuables, then you risk the cost of having to replace these items or worse yet, losing sentimental belongings that money cannot buy back.
Not Being Able to Use Your Garage to Its Full Potential
We’ve seen DIY workshops, studios, gyms and even home offices across the thousands of garages we’ve worked on. Many of our customers are happy with their new garage roof because it means they can get back to using their garage the way they want to use it.
By not replacing your garage roof, you delay making full use of your garage and your home.
Irreversible Structural Damage
If a garage roof fails or collapses, this can cause long-term irreversible structural damage to the garage walls, which may mean expensive garage refurbishment or conversion projects, or replacement of the entire garage.
By replacing your garage roof early, you save on the long-term cost of future refurbishment works.
Health Risks (If Your Garage Roof is Asbestos)
Problem is, we’re now at a point in time (30-40 years later) where many of those asbestos roofs are beginning to deteriorate.
We’re more health-conscious now than ever, and none of us want a potentially harmful material in our back garden.
Whilst the risks are low when left undisturbed, there remains a potential health risk to you and your family if your garage roof contains asbestos.
Trouble Selling Your Home in Future or a Lower Property Value
A leaking or asbestos garage roof will ultimately bring the value of your property down, which may mean less proceeds for you when you come to sell your house.
Common Questions:
Can You Sell a House With an Asbestos Garage Roof?
What is the Typical Lifespan of a Newly Replaced Garage Roof?
Examples from Previous Garage Roof Replacements Across the UK
Garage Roof Replacement in Manchester (Jan 2025)
This garage in Manchester was a typical size you’ll find in the UK for a single garage – 3.2m x 6.0m. Since the garage was stand-alone, and all the existing timber beams were still in good condition, the only thing needed was a like-for-like roof replacement and new fascias and guttering.
Asbestos Garage Roof Replacement in Surrey (Mar 2025)
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 fascia.
Garage Roof Replacement in Birmingham (Nov 2025)
As you can see from the photo sent in by our customer in Birmingham – they had an unusually long garage at 7.8m. The additional length was factored into the cost as well as their request for black tile-effect roofing sheets and matching uPVC fascia boards.
How to Know if It’s Time to Replace Your Garage Roof
If you’re still unsure, here are our top 5 warning signs that suggest it might be time to replace your garage roof:
1. Visible Damage to the Roofing Panels
Other visible indicators include misalignment of the roofing panels, unsecured timber joists that support the garage roof, or excess condensation indicating that the roof has become more porous.
2. Water Ingress
This is not only limited to a garage roof leak, but other sources of water ingress such as condensation are likely to lead to a persistent problem of damp or mould – which means you’ll have to fork out on insulation and ventilation costs just to keep it at bay.
3. Age
Garage roofs typically last up to 30 years. However, asbestos roofs (which many UK garages still have) can last for up to 50.
Since most UK garages were built back in the 20th century, we’re now at a point in time where many of those garage roofs are beginning to reach their end of life and need to be replaced.
4. You Suspect Asbestos
Telltale signs of asbestos include cement-like, corrugated panels or lichen growth on top of the roof.
If you’re not sure whether your garage roof is asbestos, you can read our full guide here.
5. You’re No Longer Using the Garage as Intended
A garage is an important part of your home and you want to get the most use out of it as possible – whether that’s for storage, recreation or work.
If you’re finding yourself avoiding your garage, as you don’t feel comfortable or safe in there, it might be time to invest in a garage roof replacement.
Photo Examples of Roof Damage
Replacing an Asbestos Garage Roof and the Cost
How Much Does it Cost to Replace an Asbestos Garage Roof?
For an asbestos garage roof replacement, you can expect to pay between £2,000 – £4,600 depending on the size of the garage.
What Safety Measures Need to be Taken?
As such, you need to make sure you know how to replace an asbestos garage roof safely, and that your chosen contractor follows the Control of Asbestos Regulation 2012 legislation.
Precautions need to be undertaken in order to keep your garage safe.
Before installation, we advise not disturbing your garage (such as banging the walls), or entering the garage after strong winds. This is because, when disturbed, asbestos garage roofs release harmful fibres in the air. In general, you should avoid disturbing your garage roof whenever possible to mitigate its effects.
During installation, our licensed teams follow all HSE guidelines to keep you and your garage safe. This includes the use of PPE equipment and safe transportation of the old asbestos panels.
After installation, our team undertakes full clean up of the work site and ensures there is no asbestos left behind.
Can You DIY Asbestos Removal?
There are also certain steps that need to be taken which most individuals don’t have access to, including full PPE, knowledge and expertise on asbestos handling, or access to an asbestos waste management center.
If you suspect asbestos, you should contact a professional, your local council, or the Health and Safety Executive (HSE).
Timelines for Asbestos Removal
The Garage Roof Replacement Process: What to Expect
Quotation
This allows us to send a quote to you via SMS, email, and post, while still being 100% accurate to your garage.
It also means we spend less on surveyor costs and can pass that saving onto your quote.
Inspection
At this stage, you also have a point of contact to discuss your garage, ask questions and look at previous projects for inspiration.
Installation
If your garage roof is asbestos, our installation team ensures all safety and compliance measures are followed, and that your garage is thoroughly cleaned for immediate use.
A sign off sheet is provided to you to confirm you’re happy with the installation and you are then given your 10-year manufacturer and workmanship guarantees as well as a certificate for safe asbestos removal.
Ready to Find Out the Exact Cost to Replace Your Garage Roof?
Budgeting Tips for Your Garage Roof Replacement
- Get Multiple Quotes: We advise receiving at least 3 quotes from reputable firms to make an informed decision and ensure you’re not being ripped off by one company.
- Check Reviews: Reviews and testimonials are a good way to gauge if a contractor offers competitive prices and ethical working practices.
- Consider Long-Term Value: Whilst a new garage roof is a large upfront cost, you need to consider the long-term impact of having the work done. This includes – avoiding future refurbishment works, being able to use your garage again, and protecting what you store in the garage.
- Check if New Fascia and Guttering are Included: Fascia and guttering are a system that goes hand in hand with a new garage roof, and should be included with your quote.
- Factor in Additional Costs: A garage roof is not a simple job and many factors come into play when pricing up the work. If your garage has any ivy growth, felt, or rotten timbers, be mindful that this may increase the cost to replace your garage roof if these aren’t removed in advance.
Danmarque do not take deposits or use salesman. Contact us today for a free quote.
Garage Roof Replacement Options and the Best Choice for You
Below, you’ll find the most recommended option that most contractors use, as well as alternatives for you to consider:
Steel Garage Roofs
EPDM Rubber Garage Roofs
GRP Fibreglass Garage Roofs
Felt Garage Roofs
Frequently Asked Questions About 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 a Garage Roof in the UK?
How Long do Garage Roofs Last?
Can You Convert a Flat Garage Roof to a Pitched Roof?
Do You Have to Remove Asbestos Before Installing a New Roof?
Do You Need Planning Permission to Replace a Garage Roof?
How Long Does it Take to Reroof a Garage?
Will Replacing the Garage Roof Improve Ventilation in the Garage?
What is the Best Option for Replacing a Garage Roof?
Get a 100% Accurate Quote to Replace Your Garage Roof Today
Simply fill in a form or call us on 0800 133 7318.
Nationwide Garage Roof Replacement Specialists
Since 2010, we’ve helped UK homeowners get rid of their asbestos and cement-fibre garage roofs. Our team is known for being professional, transparent, and responsive.
Opening Times:
9:00am – 5:30pm Monday to Friday