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678 Washington DC, USA

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Flat Roofs

Flat roofs on extensions, garages, and dormers require specialized installation to prevent pooling water and leaks. We install durable felt and EPDM rubber roofing systems built to withstand the elements.

When You Need Flat Roof Services

Puddles of standing water remaining on the roof surface days after rain. Cracks, blisters, or curling edges on old felt roofing. Water leaks dripping through the ceiling of your flat-roofed extension. Moss and algae growth holding moisture against the roof membrane.

How We Do It

Strip the old, failing roof down to the timber deck to check for rot. Repair or replace any damaged decking boards to ensure a solid foundation. Install high-performance insulation boards if thermal upgrades are needed. Lay heavy-duty multi-layer felt or seamless EPDM rubber with secure edge trims.

What to Expect

Most flat roof installations or major replacements are completed within 1 to 2 days, weather permitting.

Flat Roofs FAQs

Both have strong merits. EPDM rubber offers exceptional lifespan with a seamless single-sheet installation, while modern torch-on felt remains a robust, cost-effective choice for many homeowners.
Yes, flat roofs on extensions and garages are one of our most frequent projects across South London and Surrey.
Pooling water usually indicates inadequate fall or drainage slopes, or sagging roof decking. We correct the timber falls during replacement to ensure proper runoff.
Yes, all our flat roof installations are backed by a solid workmanship guarantee. Details are provided with every quote.