How can you tell good quality uPVC windows?
Check the paperwork and the build: a Class A profile to BS EN 12608, a BFRC energy rating, PAS 24 tested security hardware, FENSA registered installation and a written guarantee. Good uPVC windows also show clean welds, even sightlines and smooth, quiet operation.
What does Class A profile mean?
BS EN 12608 grades uPVC profile by wall thickness. Class A needs at least 2.8 mm on visible surfaces and 2.5 mm in the rebate, against 2.5 mm and 2.0 mm for Class B. Thicker walls resist flexing and hold screws better.
Which certificates should you ask for?
- BFRC Window Energy Rating, with Band B the minimum for replacements in England
- PAS 24 test evidence for the locking and security spec
- FENSA certificate for the installation
- A written guarantee, such as our GGFi guarantee
How can you judge quality by eye?
Look for neat, cleaned corner welds, evenly spaced gaps, handles that lock positively and silicone applied in a straight bead. Ask the installer how many chambers the profile has and who fabricated it. See our uPVC windows specification for what we fit. A guarantee is only as good as the company behind it, so ask who backs it and what it covers.
Thinking about new windows? We supply and fit across Stamford Hill, Haringey, Enfield, Barnet, Ilford and the rest of North and East London, with a 10-year guarantee and FENSA-registered installation. Call 020 8800 1838 or request a quote.