Established for over twenty years, offering expert levels of knowledge for all types of new build and restoration applications - and boasting an unrivalled local reputation right across the South of England - we are the roofing specialists that architects, specifiers, individuals, smaller builders and numerous leading housing developers turn to for all their roofing requirements.www.bowller.co.ukStation Rd Harston, CB2 5QP

Specialist installers of waterproofing systems for flat roofs. Our company is dedicated to providing high quality, high performance waterproofing systems for flat roofs both in the refurbishment and new build sector.www.rcc-cambridge.co.uk5 Winship Rd Milton, CB4 6BQ

Since 1955, we have increased human well-being in factories, created new life in hospitals and glass roof system buildings, improved conditions in shopping centres, and promoted children's learning in schools. Vitral has one of the most energy-saving glass roof systems on the market today, creating a good indoor climate and framework for children and adults to flourish.www.vitral.co.uk17 High St Whittlesford, CB2 4LT

The company was formed in 1976 and specialises in the installation of single ply, built up felt, asphalt, liquid membranes and green roofing. From our large depot in Cambridgeshire, Voland Roofing is able to offer a nationwide service with the M11 and A14 providing ideal transport links. The company is a long term employer and looks for the highest quality of installation from its large directly employed workforce.www.volandroofing.co.ukTwo Oaks/Twentypence Rd Cottenham, CB4 8SP

A. Grant Roofing carry out all types of roofing and also a full range of building refurbishment works. This broad range of skills enables us to take on the responsibilities of the main contract. Such projects, ranging from a few hundred pounds to half a million pounds currently account for a large number of our jobs.www.agrantroofing.co.uk2 Glenville Close Teversham, CB1 5BD