Flat Roofing Beaconsfield
Need a flat roof installed, repaired, or replaced in Beaconsfield? We handle garages, extensions, porches and dormers with tidy work, clear quotes, and systems built to stay watertight.
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Our Flat Roof Services in Beaconsfield
Our Services
About Our Flat Roofing in Beaconsfield
We work across Beaconsfield on garages, extensions, dormers, bays and small commercial flat roofs. You’ll get clear communication, a written quote, and a team that respects your property, keeps the site tidy, and finishes the details properly so the roof holds up long term.
1,000
Project Completed
97%
Customer Satisfaction
40+
Years of Experience
Flat Roofing Systems We Install in Beaconsfield
Different flat roof systems suit different buildings, so we help you choose based on lifespan, budget, appearance, and how the roof is used.
EPDM Rubber Roofing in Beaconsfield
EPDM is a popular option for flat roofs in Beaconsfield because it stays flexible through temperature changes and resists cracking over time. It’s a strong choice for garages and extensions where you want a clean finish with low maintenance. Installed properly with the right trims and drainage, it’s a reliable long-term solution.
GRP Fibreglass Roofing in Beaconsfield
GRP creates a tough, seamless finish that suits many residential flat roofs, especially where occasional foot traffic is needed for access or maintenance. It looks neat, holds up well, and works best when edges, outlets and detailing are finished properly, which is where most failures usually happen.
Torch-On Felt Roofing in Beaconsfield
Torch-on felt is still a solid choice when installed as a modern multi-layer system. It offers dependable waterproofing and good value, making it popular for garages, sheds and extensions in Beaconsfield. Done properly, it’s a practical option that performs well without the price tag of premium systems.
Liquid Roofing Systems in Beaconsfield
Liquid systems are ideal when a roof has awkward corners, lots of upstands, or tricky joins where sheets and seams become weak points. The coating forms a continuous waterproof layer, helping reduce leak risk around details. It can also work well for certain refurb jobs, depending on the condition of the existing roof.
Why Beaconsfield Homeowners Choose Us for Flat Roofing?
Flat roofs fail when they’re rushed, badly detailed, or poorly drained, so we do the basics properly every time. You get honest advice, clear pricing, tidy work, and roofing systems fitted with the details that actually stop leaks, not shortcuts that look fine for a few months.
1,000
Project Completed
97%
Customer Satisfaction
40+
Years of Experience
Trusted Roofing Services Across the
South East
Real feedback from local Beaconsfield customers who’ve had flat roof work completed by our team.
Removal of Chimney stack, replacement of roof underlay, guttering and flat roof repair. - Mitchell from Alliance Roofing & Building was the only builder, of many that I had contacted, that climbed a ladder to inspect my flat-roof and to climb into my loft-space to inspect the main roof from the inside. After an extensive review of my property and discussing my options, he emailed me his quotation on the same day. Booking in dates for Alliance & Roofing to commence work was quick and effortless. They arrived on time, completed the work as planned to a professional standard. Provided Photos of work carried out at all stages. I highly recommend Alliance Roofing & Building.
New roof on my bungalow - I recently had the pleasure of working with Alliance Roofing and Building to install a new roof on my bungalow, and I couldn't be more satisfied with the results. From start to finish, the entire process was smooth and professional. Mitchell, who led the project, was exceptional. His expertise and dedication were evident from the moment he arrived. He and his team were not only highly skilled but also incredibly helpful and courteous throughout the entire job. They took the time to answer all my questions
New slate roof - Mitchell and his team installed my new roof and I'm very satisfied. The quality is superb, they were professional, punctual, and communicative. The project finished on time and the site was left spotless.
Guttering repair - Mitchell came to repair my guttering, he was on time, polite, efficient and conscientious. He kept me informed at each stage of the work that was needed.
Roof repairs - Mitchell repointed a chimney and installed a chimney cowl. He also did some cementing work to the roof. Mitchell was very polite and a conscientious worker. He kept me informed throughout the job. Mitchell was able to give me a quote and do the repair work within a few days. I wouldn’t hesitate to recommend Alliance Roofing & Building.
Replacement of flat roof - Mitchell and his team are smart, communicative, skilled, friendly, helpful, trustworthy and reliable. I would highly recommend their roofing services.
Roof tile replacement and chimney repair - Mitchell and his team are reliable, efficient and hard working. We will certainly use them again in the future. Thanks guys
Chimey Removal & Other Minor Repairs - Mitchell was the only roofer who quoted for the job that actually took the time to go up on the roof to inspect the issue, which was appreciated at the time. He fitted us in around other jobs within 2 weeks to get the work done in a timely manner. The work (which included the removal of a chimney stack to below the roof line, repointing the ridge line, and various other patch repairs) appears to have been completed to a good standard (posting days after completion). Mitchell and his team were polite, conscientious and happy to help throughout the job.
Fixed the roof, including all the felting and repaired the chimney. - Good communication throughout. Good work. Very happy with the service.
Roof repair - Great, really friendly and nice team
Tile realignment/repair and felt renewal - Mitchell and his team were excellent. Would definitely recommend Alliance. The team were on time (in fact they were able to begin the job half a day earlier than initially discussed), polite, efficient and kept us informed of progress each day. We could not have asked for a better service.
Roof verge repair. - Mitchell was polite, friendly and knowledgeable. The team were polite and efficient. The work was completed for the price quoted, which was competitive, and in the timeframe advised.
repair of box gutter behind parapet wall - Mitchell undertook a detailed diagnosis of the work required, started the job quite quickly and completed it satisfactorily.
Leak in the roof- Very polite and professional. Job was completed professionally at a very good price. Would highly recommend
New slate roof - Mitchell and his team installed my new roof and I'm very satisfied. The quality is superb, they were professional, punctual, and communicative. The project finished on time and the site was left spotless.
Roof repairs - Mitchell repointed a chimney and installed a chimney cowl. He also did some cementing work to the roof. Mitchell was very polite and a conscientious worker. He kept me informed throughout the job. Mitchell was able to give me a quote and do the repair work within a few days. I wouldn’t hesitate to recommend Alliance Roofing & Building.
Roof tile replacement and chimney repair - Mitchell and his team are reliable, efficient and hard working. We will certainly use them again in the future. Thanks guys
Chimey Removal & Other Minor Repairs - Mitchell was the only roofer who quoted for the job that actually took the time to go up on the roof to inspect the issue, which was appreciated at the time. He fitted us in around other jobs within 2 weeks to get the work done in a timely manner. The work (which included the removal of a chimney stack to below the roof line, repointing the ridge line, and various other patch repairs) appears to have been completed to a good standard (posting days after completion). Mitchell and his team were polite, conscientious and happy to help throughout the job.
Fixed the roof, including all the felting and repaired the chimney. - Good communication throughout. Good work. Very happy with the service.
Roof repair - Great, really friendly and nice team
Tile realignment/repair and felt renewal - Mitchell and his team were excellent. Would definitely recommend Alliance. The team were on time (in fact they were able to begin the job half a day earlier than initially discussed), polite, efficient and kept us informed of progress each day. We could not have asked for a better service.

Real feedback from local Beaconsfield customers who’ve had flat roof work completed by our team.

You’ll get a written quote with a clear scope of work, plus a sensible timeline that we stick to.
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We carry out the work carefully, then check the details, drainage, and finishes so the roof is watertight before we leave.
Frequently Asked Questions
It depends on the system and how well it was installed. EPDM and GRP can last for decades when fitted properly, and modern felt systems can also perform well. We’ll recommend the right option based on your roof and expectations.
If the damage is localised, a repair can be the right call. If the roof has widespread splitting, recurring leaks, soft areas, or poor drainage, replacement is usually the safer and more cost-effective option.
The most common causes are failed seams, cracked coverings, poor detailing at edges and rooflights, blocked outlets, and ponding water. A proper inspection is the fastest way to pinpoint the real cause.
In heavy rain or unsafe conditions, we focus on making the roof watertight temporarily and preventing further damage inside. Once conditions improve, we return to complete the correct permanent repair.
Yes, but it’s simple. Keeping outlets clear and checking flashings and trims helps prevent most issues. We can also inspect the roof periodically if you want peace of mind.
We cover Beaconsfield and nearby towns and villages across Buckinghamshire. If you’re just outside the area, still get in touch and we’ll confirm availability.

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