Professional Flat Roofing Services in Bristol

A good flat roof depends on much more than the visible surface. The roof deck, drainage, falls, edges, outlets and waterproof covering all need to work together.

Brunel Roofing Bristol provides flat roof installation, repair and replacement services throughout Bristol.

We work on domestic flat roofs including garages, extensions, porches, dormers and outbuildings.

Flat Roof Repairs

A leaking flat roof does not automatically mean that the entire roof needs replacing.

Where the existing structure and covering remain serviceable, a targeted repair may be sufficient.

We can investigate problems including leaks, damaged coverings, failed joints, poor edges and deterioration around roof penetrations.

Flat Roof Replacement

Where an older flat roof has deteriorated extensively, replacement may provide a more practical long-term solution than repeated repairs.

We can assess the condition of the existing roof and recommend whether repair or replacement is appropriate.

Flat Roofing for Garages and Extensions

We provide roofing solutions for:

• Garage flat roofs
• Extension roofs
• Porch roofs
• Dormer roofs
• Garden buildings
• Outbuildings
• Residential flat roofs
• EPDM rubber roofing

Flat Roofers Throughout Bristol

Our flat roofing services are available throughout Bristol and the surrounding areas.

Choose your location below to find your nearest flat roofing service page.

Felt, GRP or EPDM: Choosing the Right Covering for Your Roof

There are three coverings you'll most commonly come across on flat roofs in Bristol today: built-up felt, GRP fibreglass and EPDM rubber. Felt systems are typically laid in layers and welded or torched together, and remain a cost-effective option on smaller roofs such as porches and garden buildings. GRP fibreglass forms a single seamless, rigid surface once it cures, which makes it a good match for roofs that get foot traffic or sit under a roof lantern or roof light. EPDM rubber comes in large sheets with very few joints, so it tends to suit bigger extension and garage roofs where minimising seams reduces the risk of future leaks.

Which one is right for a given job depends on the size and shape of the roof, how it's accessed, what's underneath it, and what the property owner wants to spend. Rough guide costs for a straightforward garage or extension flat roof might run from roughly £600 up to £2,500 or more, but this varies hugely with size, the state of the existing deck and insulation, and site access, so it's only ever a starting point for a conversation. Brunel Roofing Bristol looks at the roof in person before recommending a covering, and provides a free, no-obligation inspection and quote so you know exactly what you're paying for before any work starts.

Falls, Drainage and Ponding Water: Why Flat Roofs Really Fail

A flat roof is never actually flat. It's built with a slight fall, usually just a few degrees, so that rainwater runs off towards a gutter or outlet rather than sitting on the surface. When those falls are too shallow, laid the wrong way, or disrupted by a sunken deck or a badly positioned outlet, water collects in low spots instead of draining away. This standing, or ponding, water is behind the majority of flat roof problems we're called out to in Bristol, whether that's a felt roof blistering, a fibreglass surface crazing, or a rubber membrane slowly perishing where water sits longest.

Because the covering usually gets blamed first, it's easy to end up fixing the same leak more than once if the underlying falls and drainage haven't been looked at properly. A proper inspection checks how water is actually moving across the roof, not just the state of the surface, along with the condition of edge trims, upstands, outlets and any flashing around chimneys or walls. Catching poor falls or a partially blocked outlet early is usually a far smaller job than dealing with the water damage and rot that follows once it's been left.