RSB Roofing provides expert flat roof repair and replacement services across Birmingham and the West Midlands. We work on all flat roof types GRP fibreglass, EPDM rubber, felt, and liquid membrane systems for homes, garages, extensions, balconies and commercial buildings. All our flat roofing work is cold-applied, fully guaranteed, and completed to British Standard by our own trained team.
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Flat roofs are common across Birmingham homes and commercial properties, but they can develop issues that aren’t always obvious at first glance. Small cracks, pooling water, or damaged flashing may look minor, yet they can quickly lead to leaks and costly structural damage if ignored.
Standing water (ponding) after rain means drainage has failed or the roof has dipped. Left untreated, it accelerates felt and membrane deterioration.
Bubbles in the felt or membrane indicate moisture trapped beneath the surface. This leads to delamination and leaks if not repaired promptly.
Cracks in GRP or felt allow water to penetrate. Freeze-thaw cycles in Birmingham winters cause rapid crack expansion.
A brown stain or damp patch on the ceiling of a room below a flat roof is a clear sign of active water ingress — call us immediately.
Soft areas when you press on the decking indicate the OSB or plywood underneath has become water-damaged and rotten — replacement is needed.
Felt flat roofs typically last 10–15 years. If yours is approaching this age, a proactive survey and replacement could save you thousands in water damage.
If you have noticed any of these signs, do not wait. Contact Flat Roofing Repair’s Service Birmingham today for a free inspection and same day roof survey.
We repair and replace all types of flat roofs across Birmingham, Solihull, Erdington, Sutton Coldfield and the wider West Midlands. Every job starts with a free survey and clear written quote before we begin.
GRP (Glass Reinforced Plastic) fibreglass is the most durable flat roofing system available today. When properly installed, a GRP roof lasts 25–30+ years with virtually no maintenance. We repair delaminated areas, apply new top coats and carry out full GRP flat roof replacements for garages, extensions, porches and balconies across Birmingham.
EPDM rubber roofing is a cold-applied, seamless membrane that is extremely resistant to Birmingham's variable weather temperature changes, UV rays and freeze-thaw cycles. We repair splits, failed seams and edge details, and carry out full EPDM replacement with a 20-year manufacturer-backed guarantee.
Traditional felt flat roofs remain common across Birmingham's older housing stock. We repair blistered, cracked and split felt surfaces and provide full felt replacements using high-performance torch-on felt systems that significantly outperform older single-layer felt roofing.
We install and repair flat roofs on garages, home extensions, kitchen flat roofs, dormer windows, bay windows and balconies across Birmingham. We advise on the best system for each structure and provide a full written quote including all materials and labour.
Flat roof repair costs in Birmingham depend on the type of flat roof system, the size of the affected area, and whether a patch repair or full replacement is needed. Below is a transparent guide to flat roof repair prices in Birmingham for 2026.
£200 to £500
Small localised repair on felt, EPDM or GRP sealing a split, blister or failed joint. The most cost-effective solution when the rest of the roof is still in sound condition.
£300 to £800
Repairing a larger section of failed felt flat roofing, including stripping the damaged area, renewing felt layers and re-sealing edges. Ideal for felt roofs in otherwise good condition.
£300 to £900
Repairing splits, failed seams or edge details on EPDM rubber flat roofs. EPDM is highly durable so small repairs typically restore a fully weathertight surface.
£350 to £900
Repairing delaminated or cracked GRP fibreglass flat roofing, including applying new resin and top coat. GRP repairs blend seamlessly with the existing surface when completed correctly.
£800 to £2,000
Full replacement of a felt flat roof on a standard garage or extension (15–25 m²). Includes stripping old felt, replacing any rotten decking boards, and installing new high-performance torch-on felt.
£1,200 to £2,500
Full GRP fibreglass flat roof on a garage or extension including new OSB decking where required. GRP comes with a written 25–30 year guarantee — the longest lifespan of any flat roofing system.
£1,000 to £2,200
Full EPDM rubber flat roof replacement for a garage, extension or bay window. Includes a 20-year manufacturer-backed guarantee on the membrane.
£150 to £400
Repairing or replacing blocked or failed flat roof drains and outlets. Essential to prevent ponding water which accelerates flat roof deterioration.
£300 to £800
Emergency response to an active flat roof leak including temporary weatherproofing and permanent repair. Available 24 hours a day, 7 days a week across all Birmingham postcodes.
All our prices include VAT. We provide free written quotes before starting any work.
When searching for recommended roofers near me in Birmingham, it can be difficult to know which company to trust. There are many roof repair companies operating across the city, but not all of them offer the same standard of service, materials, or professionalism. Here is what sets Roofing Service Birmingham apart
We specialise in all flat roof systems and only use approved, British Standard materials on every job.
All flat roof repairs and replacements come with a written workmanship guarantee covering both materials and labour.
We carry out a thorough flat roof survey and provide a clear written quote at no cost and with no obligation.
We remove all old materials and leave your property exactly as we found it clean, tidy and protected.
Our GRP and EPDM systems come with a written guarantee of up to 30 years for complete peace of mind.
No flames, no hot works. Our flat roofing systems are cold-applied, making them safer and quicker to install.
We provide roof repair near me services across the whole of Birmingham and surrounding areas. Our local team covers every Birmingham postcode, so wherever you are in the city, we can reach you fast. We regularly carry out roof repair in Birmingham across all of the following areas:
If your area is not listed above, call us on 07401492904 — we cover the full West Midlands region and are happy to travel for larger jobs.
A felt flat roof lasts 10–15 years. GRP fibreglass lasts 25–30+ years. EPDM rubber typically lasts 20+ years with minimal maintenance.
Yes. Our EPDM and liquid membrane systems can be applied in temperatures above 5°C. GRP fibreglass requires dry conditions and temperatures above 5°C for curing.
We advise honestly on this based on the roof's age and condition. A roof approaching the end of its lifespan is often more cost-effective to replace than to repeatedly patch.
Usually yes — we strip back to the deck and inspect for rotten boards before installing the new system. This ensures a sound, dry base for the new roof.
Do not let a leaking flat roof cause further damage to your property. Whether you need an emergency patch, a full EPDM replacement, or a new GRP fibreglass flat roof RSB Roofing covers all Birmingham areas and is available 7 days a week. Contact us today for a free survey and transparent written quote with no obligation.
