I have been told that if replacement double glazed units are being installed in existing windows, I do not need a certificate to confirm they meet the present building regulations standard. This is the certificate which would be given if the units were installed by a FENSA member!
Glazed units do not need FENSA Certification, although they still need to be toughened or laminated where appropriate, and it is still wise (and economical) to use a low-emission building regs compliant glazing system as it is hardly any more money than standard double glazing, and savings at least a third of the heat loss
DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!