Flat Roofing Newbury
Looking for flat roof repair, replacement, or a new installation in Newbury? We work across RG14 to RG20, handling everything from small garage roofs to larger residential and commercial flat roofs, with clear advice and solid workmanship.
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Flat Roof Repair and Installation in Newbury
Our Services
Flat Roofing Built for Newbury Properties
Newbury properties range from older homes with extensions to modern commercial units, and flat roofs behave differently on each. We tailor our approach based on roof size, structure, and usage, ensuring the system installed suits the building, not just the budget.
1,000
Project Completed
97%
Customer Satisfaction
40+
Years of Experience
Flat Roofing Systems We Offer
Each flat roofing system has strengths and limitations. We explain the options clearly and help you choose the right system based on durability, maintenance expectations, and overall value.
EPDM Rubber Roofing
EPDM rubber roofing is flexible, durable, and well suited to Newbury’s changing temperatures. It resists cracking, handles movement well, and provides a long-lasting waterproof finish for both residential and commercial flat roofs.
GRP Fibreglass Roofing
GRP fibreglass roofing creates a seamless, rigid surface that works particularly well on garages, dormers, and extensions. Correct preparation is critical, and we focus on strong detailing to avoid future stress cracks.
Torch-On Felt Roofing
Modern torch-on felt systems are far removed from older felt roofs. When installed in multiple layers with secure edges and correct falls, they provide a cost-effective and dependable flat roofing solution.
Liquid Roofing Systems
Liquid-applied roofing is ideal for complex roof shapes or refurbishment projects. It forms a continuous waterproof layer once cured, making it useful where traditional sheet systems are difficult to install cleanly.
Why Flat Roofs Fail and How We Avoid It
Most flat roof problems come from poor drainage, rushed installation, or repairs that ignore the real cause. We focus on water flow, structural condition, and proper detailing, which is why our flat roofs in Newbury hold up over time.
1,000
Project Completed
97%
Customer Satisfaction
40+
Years of Experience
Trusted Roofing Services Across the
South East
Clear advice, tidy work, and flat roofs that perform as they should
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.

We start with a proper inspection and explain your options clearly.

You receive a straightforward quote and a realistic timescale.
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We complete the work carefully and check vulnerable areas before sign-off.
Frequently Asked Questions
Depending on the system and installation quality, flat roofs can last anywhere from 20 to 40 years. Regular inspections and prompt repairs help maximise lifespan.
Standing water is usually caused by poor falls, blocked outlets, or structural movement. It should be inspected, as ponding accelerates wear and increases leak risk.
If the roof structure is sound and damage is localised, repairs are often effective. Widespread membrane failure usually means replacement is the better long-term option.
EPDM offers flexibility and long-term durability, while felt can still be a strong choice when installed correctly. The best option depends on roof use, budget, and expectations.
Every couple of years is sensible, and after severe weather. Inspections help catch issues early, especially around outlets and edges.
Yes. We cover Newbury and surrounding areas across RG14 to RG20, including nearby villages.

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