General contractor in Harpenden, England The most extensive list of General contractor in Harpenden, England Wall & Wilde Harpenden, England General contractor Detail Address: 2B Clarence Road, Harpenden, England AL5 4AJ . Phone: +44 7575 777720. Previous page 1 2 3 Types of specialists in Harpenden, England Accounting Car repair Dentist Doctor Electrician General contractor Insurance agency Lawyer Locksmith Painter Plumber Real estate agency Roofing contractor Veterinary care