When you choose Sheerwater Glass, you’re choosing a FENSA-approved installer, so your installation is compliant, registered, and certified where it matters.
A FENSA certificate is official proof that your replacement windows or external glazed doors meet building regulations for safety, energy efficiency, and legal compliance in England and Wales.
You’ll get one automatically when you use a FENSA-approved installer like Sheerwater Glass, if your installation meets the scheme criteria.
FENSA covers replacement of:
Important: Only external doors with more than 50% glass qualify for FENSA registration. If your door contains less than 50% glazing, a certificate will not be issued.
You’ll still receive a Sheerwater Glass QANW insurance-backed guarantee, your installation is still protected.
You will not receive a FENSA certificate if your project involves:
Not sure if your installation qualifies? Just ask, we’ll explain exactly what applies.
A valid FENSA certificate gives you:
We’re a fully registered FENSA-approved installer. That means:
You likely had work that falls outside FENSA’s scope, for example, doors with less than 50% glazing or a new build.
Only if your installation qualifies. We can check and advise you.
You’ll need to arrange a building regulations certificate directly with your local council.
You can re-order a certificate easily online:
You’ll get your certificate within 15 working days.