About Us Grange provide a comprehensive roofing and restoration service. Working primarily with property management professionals, building surveyors and architects Grange have successfully completed contracts on many prestigious buildings. Dedicated to completing work on time and within budget Grange have achieved excellent client retention over the years. Grange are members of the Federation of Master Builders, The Guild of Master Craftsmen and the Confederation of Roofing Contractors. Peace of mind doubled All new work undertaken is fully guaranteed. Grange can also arrange independent insurance cover for added peace of mind. Public liability cover of £5,000,000.