Trusted flat roofing specialists serving Thame and the OX9 area

Flat Roofing in Thame

From leaking garage roofs to full flat roof replacements, we provide reliable flat roofing services across Thame, OX9, with clear advice, tidy workmanship, and repairs that last in real conditions.

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Flat Roof Repair and Installation in Thame

We carry out flat roof repairs, replacements and new installations on homes, extensions, garages and commercial buildings, starting with a proper inspection so the right work gets done.

Flat Roof Installation

Installing a flat roof properly means more than fitting a covering. We assess the structure, create the correct falls for drainage, and finish edges, joins and outlets carefully so water does not sit or track back into the building.
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Flat Roof Replacement

If a flat roof has ongoing leaks, soft decking, or multiple failed repairs, replacement is often the safest option. We remove the old system, address underlying issues, and install a new flat roof designed for long-term use rather than short-term fixes.
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Flat Roof Repairs

Flat roof repairs in Thame often involve split membranes, lifting felt, cracked detailing, or leaks around rooflights and edges. We identify the source of the problem and repair it properly, instead of masking it with temporary sealants.
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Flat Roof Inspections

Early signs like bubbling, staining, slow drainage or moss build-up usually point to hidden issues. Our flat roof inspections help catch problems early and reduce the risk of water damage inside the property.
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Emergency Flat Roof Repairs in Thame

When water is entering the building, delays cause damage. We provide emergency flat roof repairs in Thame to make the roof safe quickly, then advise on the most effective permanent repair once conditions allow.
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Experienced Flat Roofers in Thame

Flat roofs fail for predictable reasons, poor drainage, weak detailing, ageing materials, or rushed repairs. Our approach is simple. We inspect the roof properly, explain what’s going on in plain terms, and carry out work that solves the issue rather than postponing it.

1,000

+

Project Completed

97%

Customer Satisfaction

40+

Years of Experience

Flat Roofing Options in Thame

Different flat roof systems suit different buildings. We recommend the right option based on roof size, access, drainage, and how long you want the roof to perform reliably.

EPDM Rubber Roofing

EPDM rubber roofing is flexible, durable, and well suited to the UK climate. It performs particularly well on larger flat roofs and extensions, handling movement without splitting when installed with proper detailing.

GRP Fibreglass Roofing

GRP fibreglass creates a seamless, hard-wearing surface that works well on garages and smaller flat roofs. Correct preparation is essential, which is why we focus on solid decking, clean trims, and correct curing during installation.

Torch-On Felt Roofing

Modern torch-on felt systems remain a dependable option when installed in layers with strong laps and edge protection. Felt offers good value and is often repairable if damage is addressed early.

Liquid Roofing Systems

Liquid-applied systems are useful for complex roof shapes or areas with multiple penetrations. Once cured, they form a seamless waterproof layer that can extend the life of an existing flat roof when used correctly.

Why Flat Roofs in Thame Develop Leaks?

Most flat roof leaks begin at weak points rather than the centre of the roof. Poor drainage, failed edges, rooflight detailing, and standing water are common causes. Proper inspection and correct repairs stop repeat issues and internal damage.

1,000

+

Project Completed

97%

Customer Satisfaction

40+

Years of Experience

Rated 5 Stars by Homeowners Across

Thame

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

Thame

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

Roof Repair

Thame

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

Thame

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

Thame

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

Thame
Our Process
Inspection and advice

We start by inspecting the roof properly so recommendations are based on facts, not assumptions.

Clear quote and scheduling

You receive a clear written quote and an agreed schedule, with no vague pricing or pressure.

Installation, repair, and final checks

We complete the work, check all joins and outlets, and leave the site clean and safe.

[FAQ]

Frequently Asked Questions

How long do flat roofs typically last?
Is it better to repair or replace a flat roof?
Why is water pooling on my flat roof?
Can insulation be improved when replacing a flat roof?
How often should a flat roof be inspected?
Do you offer emergency flat roof repairs in Thame?
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