Trusted flat roofing specialists serving Oxford and the surrounding areas

Flat Roofing in Oxford

We provide professional flat roof installation, repairs, and replacements across Oxford, working on residential and commercial properties with a clear focus on long-term performance, weather protection, and proper workmanship.

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Flat Roofing Services in Oxford

From new flat roof installations to targeted repairs and emergency call-outs, we handle every aspect of flat roofing for properties across Oxford.

Flat Roof Installation

We install flat roofs for extensions, garages, dormers, bay roofs, and commercial buildings across Oxford. Every installation is planned around the structure of the building, drainage requirements, and how the roof will actually be used. We do not take a one-size-fits-all approach, as flat roofs fail quickly when the wrong system is chosen or corners are cut during installation.
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Flat Roof Replacement

If your existing flat roof is reaching the end of its lifespan, replacement is often the most cost-effective option long term. We assess the condition of the decking, insulation, and drainage before recommending a full replacement, ensuring the new system is suitable for Oxford’s weather conditions and will remain watertight for years to come.
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Flat Roof Repairs

If your existing flat roof is reaching the end of its lifespan, replacement is often the most cost-effective option long term. We assess the condition of the decking, insulation, and drainage before recommending a full replacement, ensuring the new system is suitable for Oxford’s weather conditions and will remain watertight for years to come.
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Flat Roof Inspections

Regular inspections can prevent minor defects from turning into expensive repairs. We provide flat roof inspections across Oxford to check for early signs of failure such as blistering, cracking, weak joints, or drainage issues. Our inspections are practical and honest, giving you clear advice on whether repairs or replacement are actually needed.
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Emergency Flat Roof Repairs

When a flat roof starts leaking, quick action matters. We offer emergency flat roof repairs in Oxford to limit water damage and protect the structure of your property. Our priority is to make the roof safe and watertight, followed by clear guidance on any permanent repairs required.
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About Our Flat Roofing Work in Oxford

Flat roofs demand a higher level of attention than pitched roofs, especially on older properties and extensions common throughout Oxford. Many flat roof problems we see are the result of poor detailing, incorrect materials, or inadequate drainage. Our approach is based on experience, not assumptions, and every recommendation is backed by a clear inspection and practical reasoning.

1,000

+

Project Completed

97%

Customer Satisfaction

40+

Years of Experience

Flat Roofing Systems We Work With

Different properties require different flat roofing systems. We guide homeowners through the pros and cons of each option so the final choice suits both the building and the budget.

EPDM Rubber Roofing

EPDM is a durable and flexible flat roofing system suited to many residential and commercial properties in Oxford. It performs well in changing temperatures and offers excellent resistance to cracking and UV exposure. When installed correctly, EPDM provides a clean finish with minimal maintenance requirements.

GRP Fibreglass Roofing

GRP fibreglass roofing creates a seamless, rigid surface that is ideal for areas with frequent foot traffic or complex detailing. It offers a strong, long-lasting finish but must be installed under the right conditions. We only recommend GRP where the structure and environment are suitable.

Torch-On Felt Roofing

Torch-on felt roofing remains a reliable option when installed using modern multi-layer systems. This type of flat roof is cost-effective and well suited to garages and extensions. Correct layering and secure detailing are essential to prevent premature failure.

Liquid Roofing Systems

Liquid roofing systems are useful for complex roof shapes or areas where traditional coverings are difficult to install. They form a seamless waterproof membrane when applied correctly. Preparation is critical, and we only use liquid systems where they offer genuine long-term benefits.

Why Flat Roofs Fail and How We Prevent It?

Most flat roof failures are avoidable. Poor drainage, unsuitable materials, and rushed installation are the main causes of leaks and water damage. By assessing the structure properly and choosing the right system from the start, we help homeowners across Oxford avoid repeated repairs and unnecessary costs.

1,000

+

Project Completed

97%

Customer Satisfaction

40+

Years of Experience

Rated 5 Stars by Homeowners Across

Oxford

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

Oxford

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

Roof Repair

Oxford

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

Oxford

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

Oxford

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

Oxford
Our Process
Inspection and advice

We take the time to inspect your flat roof properly before advising on the best solution, ensuring you receive honest guidance rather than a sales-driven recommendation.

Clear quote and scheduling

After inspection, we provide a clear written quote and agree a schedule that works around you, with no pressure and no hidden costs.

Installation, repair, and final checks

Every job is completed with final checks to ensure the roof is fully watertight, secure, and finished to a professional standard.

[FAQ]

Frequently Asked Questions

How long should a flat roof last?
Is it better to repair or replace a flat roof?
What causes flat roofs to leak?
Can flat roofs handle heavy rain?
How long does flat roof installation take?
Do you offer emergency flat roof repairs in Oxford?
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