Building, Joinery & Electrical Contractors, All Types Of Domestic & Commercial Work Extensions, Renovations, New Builds, Loft Conversions, Etc. Over 25 Yrs. Experience. Need some extra space in your home? Why not expand your home with a high spec home extension by Mike Neesam & Son Ltd. We build high quality home extensions designed specifically for your home. Our highly experienced builders offer exceptional finishes in every aspect of construction work.