Monday – Sunday: 07:00 - 19:00

678 Washington DC, USA

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Flat Roofs

Flat roofs on extensions, garages, and commercial buildings require specialised waterproofing techniques to prevent pooling water and leaks. We install and repair high-performance flat roofing systems built to withstand the British climate.

When You Need Flat Roofs

Water is pooling or 'ponding' on your flat roof surface after rainfall. You notice bubbles, cracks, or blistering in your felt or membrane covering. Damp patches or peeling paint are appearing on ceilings directly under your flat roof extension. Your existing flat roof is over 15 years old and showing signs of wear.

How We Do It

We evaluate the roof deck condition and check for underlying timber rot or insulation failure. We recommend the ideal flat roofing system—such as GRP, high-performance felt, or mastic asphalt—for your budget. We strip away failing layers, repair the deck, and expertly lay the new waterproof membrane. We clear all old waste materials from your site and issue your written guarantee.

What to Expect

Most residential flat roof installations or major replacements are completed within 1 to 3 days.

Flat Roofs FAQs

Mastic asphalt can last up to 50 years with minimal upkeep, while modern GRP fibreglass and multi-layer felt systems also offer decades of reliable waterproofing.
Yes, if the damage is localized or the membrane has minor splits, we can often carry out targeted waterproof repairs.
We ensure proper grading and falls are built into the roof structure so that rainwater drains efficiently toward gutters or outlets.
Every flat roof installation and repair we perform is fully backed by our workmanship guarantee.