uPVC Windows

Depending on the quality and maintenance, uPVC windows can last for up to 20-25 years, with some windows lasting even longer. White uPVC windows in casement and tilt and turn styles from Anglian hold the BBA accreditation, which means they can last more than 35 years with the proper care.

Although they sound similar, uPVC and PVC are different. uPVC (unplasticised polyvinyl chloride) is stronger than PVC (polyvinyl chloride) which is more flexible. PVC contains two plasticisers – BPA and phthalates – which are removed in the uPVC manufacturing process. This is why uPVC is called unplasticised. Removing the two plasticisers makes uPVC much stronger and far more suited to windows, doors and building materials.

While retrofit installations do happen, we do not recommend that you leave existing wooden frames in place when fitting new uPVC windows. There are some big drawbacks including mismatching aesthetics and a decrease in the size of the window opening. We replace your existing window frames during the fitting process, regardless of your window frame material. Installing modern uPVC windows together with new frames ensures a perfect fit and the best thermal efficiency.

Low-quality uPVC frames are often thinner, whilst thicker frames tend to indicate better durability and insulation. A great wat to tell the quality of a uPVC window is to see how many accreditations are attached to it for quality, security and energy efficiency. The more accreditations, the better quality the window tends to be. Be sure to also use companies with endorsements and memberships of official industry bodies. Look out for energy efficiency ratings too – as higher ratings indicate higher quality construction.