Flat Roofing Chiswick
Professional flat roof installation, repairs and replacement across Chiswick, done properly and priced clearly.
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Flat Roofing Services in Chiswick
Our Services
Flat Roofing That Holds Up
Most flat roof failures come down to poor detailing, rushed installs, or cheap materials. We focus on correct falls, sealed edges, clean joints and proper outlets, so the roof performs properly year after year.
1,000
Project Completed
97%
Customer Satisfaction
40+
Years of Experience
Flat Roof Systems We Install
We’ll recommend the most suitable flat roofing system based on your roof size, usage and budget.
EPDM Rubber Roofing
A durable, flexible membrane ideal for larger flat roofs and extensions, with excellent resistance to temperature changes.
GRP Fibreglass Roofing
A seamless, hard-wearing system suited to balconies, walk-on areas and smaller flat roofs where a clean finish matters.
Torch-On Felt Roofing
A reliable multi-layer system when installed correctly, offering strong waterproof protection at a sensible cost.
Liquid Roofing Systems
Ideal for complex roof shapes or refurbishment work, forming a continuous waterproof layer without major disruption.
Why Chiswick Homeowners Choose Us?
We give straight advice, turn up when we say we will, and leave the site clean. No pressure, no vague promises, just solid flat roofing work done properly.
1,000
Project Completed
97%
Customer Satisfaction
40+
Years of Experience
Rated 5 Stars by Homeowners Across
Chiswick
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 inspect the roof carefully, explain the issue clearly, and tell you whether repair or replacement actually makes sense.

You receive a clear written quote and a realistic timeline, with no hidden extras added later.
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All work is completed cleanly, followed by final checks on seams, outlets and edges to confirm the roof is watertight.
Frequently Asked Questions
That depends on the system and installation quality, but a properly installed flat roof should last many years with routine checks.
Often yes. If the issue is localised, repairs can be effective. Widespread failure usually means replacement is the better option.
Blocked outlets, split seams, lifted edges, poor detailing and ponding water are the most common causes.
Yes. If water is getting in, we aim to attend quickly to stop further damage and secure the roof.
EPDM, GRP, felt and liquid systems all have their place. The right choice depends on roof size, access and usage.
Yes. We explain the work, confirm what’s included, and provide a clear written quote before anything starts.

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