Flat and commercial roofing covers a different skill set to standard pitched tiling: felt and GRP fibreglass, single-ply membranes like EPDM, built-up bitumen systems, and larger-scale work on shop units, warehouses, offices and extensions across Norwich. We've identified 7 businesses in the city working in this area, ranging from small firms doing house extensions and garage roofs to contractors handling bigger commercial jobs on industrial estates.
When comparing contractors, look at what system they actually specialise in (EPDM and GRP have largely replaced older felt roofs for a reason: better lifespan and fewer seams to fail), whether they offer a written guarantee on materials and workmanship, and whether they're used to working around business hours if the job is on a trading premises. Ask for examples of similar-scale work, not just domestic pitched roofs, since flat roofing done badly leads to ponding water and leaks within a few years.
Our scores weigh verified customer feedback, how consistently a firm responds and turns up, and signals of proper trade experience rather than just star ratings. For the full ranked list with scores and reasoning, see our best roofing contractors in Norwich guide. Details on how we calculate the rankings are on the methodology page.
