Services | UK locations | Quality awards | Completed Projects | Supplier base | Free advice | Vacancies Cobsen-Davies Roofing are one of Britain's leading roofing contractors with over thirty years of experience. A nationwide network of branch offices provides local knowledge and expertise. Cobsen-Davies Roofing undertake new and refurbishment contracts on ALL aspects of roofing - commercial, industrial, public and private. Cobsen-Davies Roofing have a reputation for high quality, cost effective work fully endorsed by BS EN ISO 9001:2000 standards and a host of industry awards.