T. J. Copping Ltd Roofing is a fourth generation family run business. We were established in 1960 and are based in Stevenage, Hertfordshire, formally based in Finchley, North London. We cover all of London, Hertfordshire and the home counties. All our new tiled, slated, flat roofs and guttering is guaranteed for 10 years, and all estimates or quotations are free of charge and with no obligation.