Flat roof installations, replacements and repairs across North Wales, Cheshire, the Wirral and surrounding areas.
Years of Experience
Complete peace of mind
Roofing Specialists
No Obligation Quote
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.
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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We combine quality materials, expert craftsmanship and outstanding customer service to deliver flat roofing solutions that last.
We use industry-leading flat roofing systems from trusted manufacturers such as EPDM, GRP and high-performance felt.
Our skilled team ensure a flawless finish with attention to detail on every project.
All flat roof installations and repairs are fully guaranteed for your peace of mind.
Based in the region, we serve North Wales, Cheshire, the Wirral and surrounding areas.
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![]()
Helene AustinTrustindex 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.Posted on Google![]()
Rowena WilbrahamTrustindex 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.Posted on Google![]()
Shaun HughesTrustindex 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 ladsPosted on Google![]()
trish proctorTrustindex 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.WalesPosted on Google![]()
JulieTrustindex 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 efficientPosted on Google![]()
Santhosh ThomasTrustindex verifies that the original source of the review is Google.
Very pleased with the work, friendly worker.Posted on Google![]()
Anthony Michael AshbrookeTrustindex 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.Posted on Google![]()
sara hulmeTrustindex 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.Posted on Google![]()
Tom MacTrustindex 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 recommendPosted on Google![]()
CAROL JONESTrustindex 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!
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..















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.
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.