Services
Flat Roofing

Flat Roofing

Flat roof installations, replacements and repairs across North Wales, Cheshire, the Wirral and surrounding areas.

20+

Years of Experience

Fully Insured

Complete peace of mind

Local

Roofing Specialists

Free

No Obligation Quote

EXPERT FLAT ROOFING SERVICES

Flat Roofs That Last Decades.

Onyx Roofing provides professional flat roofing services across North Wales, Cheshire and The Wirral. We install, replace and repair flat roofs using high-quality EPDM rubber roofing, single-ply and liquid systems for homes, garages, extensions and commercial properties.

Our flat roofing systems are designed for long-lasting, weather-resistant performance. Whether you need a new roof, full replacement or repairs, we use proven materials and professional installation to deliver durable results built for UK weather.

With the right system and installation, flat roofs can provide decades of reliable protection with minimal maintenance. All work is completed to current building regulations and high manufacturer standards.

Flat Roofing
CRAFTED FOR LASTING PERFORMANCE

Premium Flat Roof Systems.

A flat roof should give you long-term peace of mind, not ongoing repair problems. Every Onyx Roofing installation is tailored to the property using quality materials, manufacturer-approved systems and careful workmanship.

From replacing ageing felt roofs to installing new warm roof systems on extensions, garages and commercial buildings, we take care of structural preparation, insulation, waterproofing and finishing details.

We don’t cut corners. Our experienced roofers use proven systems designed for durability, weather resistance and long-term performance.

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WHY CHOOSE ONYX ROOFING

The Onyx Difference

We combine quality materials, expert craftsmanship and outstanding customer service to deliver flat roofing solutions that last.

Premium Materials

We use industry-leading flat roofing systems from trusted manufacturers such as EPDM, GRP and high-performance felt.

Expert Craftsmanship

Our skilled team ensure a flawless finish with attention to detail on every project.

Fully Guaranteed

All flat roof installations and repairs are fully guaranteed for your peace of mind.

Local & Trusted

Based in the region, we serve North Wales, Cheshire, the Wirral and surrounding areas.

CLIENT REVIEWS

Hundreds of Happy Clients

We pride ourselves on the quality of our work – We have 140+ reviews on Yell, 90+ on Mybuilder & many more across Google, Facebook, Nextdoor and other platforms. Take a look at some of our reviews, visit our online profiles & if you would like to arrange a free no-obligation quotation, please contact us.

Posted on Google Google
Helene Austin profile picture
Helene Austin
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
We put out an enquiry as we had been badly let down by a previous roofer. James contacted us and came that day. He was charming, knowledgeable and reassuring. He started within two days, his work was exemplary - with a great attention to detail - and great value for money. James noticed a few little niggly problems and went above and beyond to fix those too. Wish we had contacted him first. Would thoroughly recommend him.
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Rowena Wilbraham profile picture
Rowena Wilbraham
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
James has done both front & back flat roof for me. Very happy with his work. He is very polite & left my property very clean & tidy. I will 100% recommend him to others.
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Shaun Hughes profile picture
Shaun Hughes
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Just had my dry verg done on my houes on the gablend by this company And they did a fantastic job come highly recommend and very friendly lads
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trish proctor profile picture
trish proctor
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
HI James, tiller, tom, were brilliant, they were prompt, polite, and worked very hard in the extreme heat, and always cleaned up everyday, the end result was brilliant,.....Mrs Proctor..../N.Wales
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Julie profile picture
Julie
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
James came at short notice to fi x a minor problem that really needed doing! Very knowledgeable, quick and efficient
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Santhosh Thomas profile picture
Santhosh Thomas
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Very pleased with the work, friendly worker.
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Anthony Michael Ashbrooke profile picture
Anthony Michael Ashbrooke
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
We just had a new roof installed I must say what a first class job from start to finish the lads are very punctual polite and very hard working they explain every scope of the job each time they come down from the roof they are cleaning around ground level and looking in neighbours to see if there is any debris there very fare priced would strongly recommend these lads 10/10 very pleased with the job.
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sara hulme profile picture
sara hulme
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
James fitted a dry ridge system on our bungalow with new valleys.as our existing tiles were loose. He workmanship is excellent and would not hesitate to recommend him.
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Tom Mac profile picture
Tom Mac
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Onyx roofing completed a full roof replacement on my house, along with 2 dormer flat roofs and all fascias. Job was completed to a very high standard and on time, all lads were polite and clean. Highly recommend
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CAROL JONES profile picture
CAROL JONES
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
This company is definitely trustworthy, I had them to do a full roof for me plus all faschias and gutters and had no problems at all, turned up on time every day, whatever the weather, cleaned up after themselves every day and were honestly the most politest and respectful lads you could wish for and also gave us the best quote, not necessarily the cheapest but we certainly were not ripped off! credit where it's due!
SEE THE TRANSFORMATION

Before & After
Flat Roofing Results

Take a look at this flat roofing project completed in Buckley, Flintshire, showcasing the installation of a durable, high-performance EPDM flat roofing system designed to deliver long-lasting protection and reliable performance..

Before
After
Before After
OUR RECENT FLAT ROOFING PROJECTS

Recently Completed Flat Roof Installations

Explore Our

Other Roofing Services

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Roof Repairs

Fast, reliable roof repairs for leaks, storm damage and more.

Conservatory Roofs

Warm, energy efficient conservatory roof solutions.

Roof Windows

Installation and replacement of Velux and roof windows.

FREQUENTLY ASKED QUESTIONS

Flat Roofing FAQs

The lifespan of a flat roof depends on the material used and the quality of the installation. A professionally installed EPDM rubber roof can last 50+ years with minimal maintenance, making it one of the most durable and cost-effective flat roofing solutions available.

EPDM rubber roofing is one of the most popular choices due to its exceptional durability, weather resistance and low maintenance requirements. It offers excellent protection against the UK’s changing weather conditions and provides a long-lasting, watertight finish for homes, garages and extensions.

Yes. We regularly replace ageing or damaged felt roofs with modern EPDM rubber roofing systems. Upgrading to EPDM provides improved durability, greater weather resistance and a much longer lifespan, giving you peace of mind for years to come.

Yes. We provide free, no-obligation quotations for all flat roofing projects across North Wales, Cheshire and The Wirral. We’ll inspect your existing roof, discuss the best solution for your property and provide a clear, transparent quotation with no hidden costs or pressure to proceed.

Are You

Ready to Start Your Flat Roofing Project?

Get in touch today for a free, no-obligation quote. We provide expert advice and high quality flat roofing across North Wales, Cheshire, the Wirral and surrounding areas.