Trusted flat roofing specialists serving Reading and RG1 to RG30

Flat Roofing Reading

Need flat roof repair, replacement, or a new installation in Reading? We work across RG1 to RG30, covering garages, extensions, dormers and commercial buildings, with clear advice and workmanship that holds up.

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Flat Roof Repair and Installation in Reading

Flat roofs in Reading take a beating from wind-driven rain, blocked outlets, and constant temperature changes. We inspect properly, fix the real cause, and install systems designed to drain correctly and last.

Flat Roof Installation

A new flat roof should not be “flat” in practice. We build in correct falls, install proper edge trims and outlets, and detail roof penetrations carefully, so water runs off as it should and the roof performs for years.
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Flat Roof Replacement

If your current flat roof has repeated leaks, soft spots, or failing seams, replacement is often the smarter move. We strip back compromised layers, check the deck and insulation, then install a new system designed for long-term reliability.
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Flat Roof Repairs

Flat roof leaks are often caused by failed joints, damaged flashing, cracked surfaces, or standing water. We locate the source, repair it properly, and make sure the surrounding areas are sound, so you are not calling someone out again in three months.
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Flat Roof Inspections

Regular inspections help prevent expensive internal damage. We check drainage points, membrane condition, edges, rooflights, and signs of ponding, then advise on any repairs before small issues become big ones.
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Emergency Flat Roof Repairs in Reading

If water is getting in, fast action matters. We provide emergency flat roof repairs in Reading to stop further damage, protect the interior, and stabilise the roof before completing any longer-term repair work.
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Flat Roofing That Suits Reading Homes and Businesses

Reading has a mix of older housing, modern extensions, and commercial buildings, and flat roofs on each behave differently. We take a practical approach, inspect the structure, address drainage, and recommend the right system for the building, not just the quickest option.

1,000

+

Project Completed

97%

Customer Satisfaction

40+

Years of Experience

Flat Roofing Systems We Install

Every system has its place. We will talk you through what suits your roof best based on access, roof size, budget, and how long you want the solution to last.

EPDM Rubber Roofing

EPDM is a durable rubber membrane that handles movement and temperature changes well. It is a solid choice for many flat roofs in Reading because it is flexible, weather-resistant, and suited to both residential and commercial roofs.

GRP Fibreglass Roofing

GRP provides a seamless, hard-wearing finish that works well on smaller flat roofs like garages and dormers. Preparation is everything with GRP, so we focus on clean detailing and proper curing to avoid future cracking or weak spots.

Torch-On Felt Roofing

Modern torch-on felt remains a reliable option when installed in the correct layers with strong edge details. It is a cost-effective system that can perform well for years when the falls and trims are done properly.

Liquid Roofing Systems

Liquid-applied roofing is useful for awkward roof shapes, heavy detailing, or areas where sheet systems are difficult. Once cured, it forms a continuous waterproof layer, ideal for refurbishment work and complex roofs.

Why Flat Roofs Fail, and How We Prevent It

Most flat roof failures come down to poor drainage, rushed detailing around edges and rooflights, or repairs that do not address the underlying issue. We focus on correct falls, sound joins, and proper finishing so the roof stays watertight, even in heavy Reading rain.

1,000

+

Project Completed

97%

Customer Satisfaction

40+

Years of Experience

Rated 5 Stars by Homeowners Across

Reading

We are proud to be consistently rated 5 stars for the quality of our workmanship, reliability and communication. Our reputation is built on honest advice, professional standards and delivering roofing work that lasts.Webflow System

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 Roof

Reading

Leak in the roof- Very polite and professional. Job was completed professionally at a very good price. Would highly recommend

Roof Repair

Reading

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.

Tile Realignment

Reading

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

Tile Replacement

Reading

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.

New Roof

Reading
Our Process
Inspection and advice

We start with a proper roof inspection and clear advice on the best next step.

Clear quote and scheduling

You get a clear quote and a sensible schedule, with no vague pricing or guesswork.

Installation, repair, and final checks

We complete the work carefully, check weak points before we leave, and keep the site clean.

[FAQ]

Frequently Asked Questions

How long does a flat roof last?
Why is water pooling on my flat roof?
Can you repair a flat roof without replacing it?
Is EPDM better than felt?
How often should a flat roof be inspected?
Do you cover RG1 to RG30?
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