City TM Ltd - St Albans

Jardak Services Ltd - Stevenage

GRE GROUP - Rickmansworth

Welwyn Garden City Construction & Remodeling - Welwyn Garden City

Aubrey Homes - Ware

Gradica Building Contractors Ltd - London

Higgins Group - Waltham Abbey

Progressive Design (London) Ltd - London

M H Costa Construction Ltd - London

The Green Building Company - Kings Langley