Built to protect. Layer by layer.

Leaks are a London flat-roof reality in our weather — but they don't have to be. Alpha Shield Roofing Ltd carries out flat roof repair and full flat roof replacement across London and the whole of the UK, using systems from Axter, Soprema, Bauder and Triflex. Every repair is inspected, cleaned and carefully finished to provide durable protection from water ingress.

Single-ply membranes are the modern answer to long-lasting flat roofs — lightweight, fast to install and highly durable. We install and maintain single-ply roofing across commercial and residential buildings, combined with liquid-applied and hot melt waterproofing for tricky details, valleys, parapets and upstands that take the most wear.

For flat roofs that need serious protection, hot melt and cold-applied systems deliver seamless, fully bonded waterproofing with no laps to lift and no weak points to leak. Our teams are trained and certified to install these systems correctly, from roof surveys and preparation to completion and final inspection.

Based in Greenford, west London, we're a fully insured roofing contractor with public and employers' liability cover, serving Greenford, Ealing, Southall, Wembley, Harrow, Uxbridge and the wider London area — plus projects across the UK. Free, no-obligation quotes and honest, transparent pricing whether you need a small repair or a complete new roof.

From domestic extensions and re-covers to commercial flat roof contracts, we bring trained installers, tidy site practices and careful detailing to every job. We also partner with other contractors on their roofing projects, including labour-only work across the UK.