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Flat Roofing Alton
Flat roof installation, replacement and flat roof repairs in Alton, GU34, for extensions, garages, dormers and residential properties across Hampshire.
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Flat Roofing Services in Alton
Our Services
Flat Roof Installation
Flat Roof Replacement
Flat Roof Repairs
Flat Roof Inspections
Emergency Flat Roof Repairs
About Our Flat Roofing
Flat roofs are common across Alton, especially on extensions, garages, dormers and outbuildings. The difference between a flat roof that lasts and one that fails early usually comes down to drainage, edge finishing, and how well the roof is sealed around joins and upstands. We focus on the fundamentals, then finish cleanly so the roof performs properly and looks right on the property.
1,000
Project Completed
97%
Customer Satisfaction
40+
Years of Experience
Flat Roofing Systems We Offer
We offer several flat roofing systems so you can choose the right balance of lifespan, appearance and budget for your Alton property.
EPDM Rubber Roofing
EPDM rubber roofing is a strong choice for larger flat roof areas because it stays flexible and handles temperature changes well. It’s ideal for Alton extensions and garages where you want a long-lasting, low-maintenance roof with excellent waterproof protection.
GRP Fibreglass Roofing
GRP fibreglass roofing creates a seamless, smart finish that works especially well on smaller roofs. It’s a popular option for dormers, porches and compact extensions in Alton where neat detailing and durability matter.
Torch-On Felt Roofing
Torch-on felt is still a solid option when installed properly using a multi-layer system. We pay attention to common weak points like edges, corners and outlets, because that’s where most felt roofs start to fail when the work is rushed.
Liquid Roofing Systems
Liquid roofing systems are useful for awkward shapes, complex details, and roof areas with lots of penetrations. Applied as a seamless coating, they create a watertight surface without relying on long runs of joins.
Why Alton Homeowners Choose Us
Alton homeowners don’t want vague promises, they want straight answers and work that holds up. People choose us because we explain what’s wrong in plain English, provide a clear quote, and do the job properly, tidy site, clean finish, and no disappearing after payment.
1,000
Project Completed
97%
Customer Satisfaction
40+
Years of Experience
Rated 5 Stars by Homeowners Across
Alton
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
Leak in the roof- Very polite and professional. Job was completed professionally at a very good price. Would highly recommend
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 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
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.
We start with a proper inspection of the flat roof, including edges, joints, outlets and flashings, then explain what’s causing the problem and what the realistic options are.
You receive a clear written quote and a sensible timeline. If the roof needs urgent attention, we prioritise the job and keep you updated.
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After completing the work, we check seams, edges, outlets and upstands, then walk you through what’s been done and what to watch for going forward.
Frequently Asked Questions
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