I have absolutely nothing to fault and simply everything to praise - it has been a complete pleasure to deal with this company. Simon, Liz and the whole team go above and beyond - we have beautifully installed, bespoke double glazed period sash windows to compliment our maisonette, built circa 1910. We also enjoy the blackout blinds in the bedroom and have shutters and blinds. Excellent Customer service, transparency in relation to timeframes and costing, top quality products, clear CAD drawings, sound advice and efficient communication, insurance backed guarantee ( Fensa ), follow up completion survey....... the list goes on. Simon heads the team of dedicated and reliable, mostly long term serving fitters and goes out of his way to ensure Customer satisfaction at all times. We are truly grateful for everything - without a shadow of doubt and with no hesitation we would highly recommend SPS. We hope to use the company again to fit a new front door and replace two other windows in the n