Lowestoft Roofing Specialists
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Flat Roofing

Flat Roofing in Lowestoft

We install and repair flat roofs on extensions, bay windows, garages, and commercial properties throughout Lowestoft. We work with GRP fibreglass, EPDM rubber, and torch-on felt systems - and we'll tell you which is right for your situation.

What's involved

How we handle flat roofing

Flat roofing covers extensions, rear additions, bay window tops, porches, garages, and flat-roof bungalows - all common across Lowestoft's housing stock. A failed flat roof, whether it's an old felt system that's split or a poorly installed replacement that's pooling water, is one of the fastest ways to cause serious damage inside a property.

For new flat roofs and full replacements, we install GRP fibreglass and EPDM rubber membrane systems. GRP (fibreglass) is our most popular option for domestic extensions - it's seamless, highly durable, and carries a 25-year product guarantee. EPDM is a single-ply rubber membrane that works well on larger areas and is particularly resistant to the UV exposure and temperature fluctuations you get in a coastal climate. For straightforward repairs to existing torch-on felt systems we can patch and reinstate without necessarily replacing the whole roof area.

Avoiding a flat roof specialist and going with a general builder who lays standard felt is a false economy. Poor drainage design, inadequate upstands at abutments, and incorrect solar-reflective finishing all cause premature failure. A flat roof that's properly detailed should not need attention for 20-30 years.

We survey the existing structure, check the decking and joists for moisture damage, and improve the fall where possible before any new covering goes down. Most domestic flat roof replacements on Lowestoft extensions take one to two days. Larger garage or commercial roofs take two to four days. All work is covered by our workmanship guarantee, and GRP and EPDM systems come with manufacturer product warranties.

Flat roof replacement in Lowestoft typically costs £70-£110 per square metre installed for GRP fibreglass, and £60-£90 per square metre for EPDM rubber.

Itemised quote
Materials, labour, scaffold broken out
Fixed start date
With a daily schedule

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Emergency roof repair?

Storm damage, active leak, damaged ridge - we aim to be on-site within 24 hours.

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Questions

What people ask first.

GRP fibreglass flat roofing in Lowestoft typically costs £70-£110 per square metre fully installed. EPDM rubber membrane sits at £60-£90 per square metre. A typical 20m² rear extension roof would cost roughly £1,400-£2,200 depending on the system chosen and any decking repairs needed.
For most domestic extensions and bay window roofs in Lowestoft, GRP fibreglass is our first recommendation - it's seamless, low-maintenance, and extremely durable. EPDM suits larger areas and is very cost-effective. Traditional torch-on felt is less commonly specified for new work now, as GRP and EPDM outperform it significantly in longevity. We'll advise on the best option for your specific roof area and budget.
A properly installed GRP fibreglass flat roof will last 25-40 years. EPDM rubber membranes typically last 30-50 years. Traditional felt roofs last 10-20 years depending on specification and exposure. All our flat roof installations are covered by both a manufacturer product warranty and our own workmanship guarantee.
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