A.P. Berrystone is Swindon's Premier Extension Specialist established in 1989. With over 25 years experience, we specialise in house extensions and renovations, on both large and small properties. Hundreds of home owners in Wiltshire, Oxfordshire and Gloucestershire have trusted us to carry out building work to their homes and properties. Our company ethos has always been simple "To complete your project on time, within the GUARANTEED PRICE and with the very minimum inconvenience to you and your home" By employing our own specialist tradesmen, we guarantee the same high quality workmanship on each project we complete. We ensure tradesmen are on site five days a week, and promise to keep any mess to a minimum. We believe that the key to our success is that we recognise the importance of working within strict time constraints, costs, deadlines as well as providing reliable after care service.