Serving Herts,Beds,Bucks and Cambridgeshire although we do go further afield to carry out specialist works if required. GSI Property Services(Northill). offer a wide range of building expertise from Underpinning to roofing and Heritage rebuilds and modifications. We install made to measure Hardwood Doors and Windows offer Double Glazed that will satisfy building regs and your local Heritage Officer. We fully refurbish older properties bringing them up-to date installing split Central heating system, underfloor heating,Fully insulating,rewire re-plumb etc. We usually finish all our fresh Plaster work by applying paint via a Graco Airless Spray system which is Quick and offers a superior Paint finish that only spraying can achieve. We also utilise a Blasting unit that will strip hard and difficult to remove paint from Woodwork without affecting the base material. We only use Glass Grit and Baking Soda as a blast medium. Strip Paint and grime from,all Metals ,clean Stone and Masonary