Certass is a government-authorised certification body that ensures replacement windows and doors are installed to recognised industry standards. Our registration means:
All installations comply with building regulations
Our work is regularly assessed for quality and compliance
You receive the correct certification for your records
You’re choosing a fully recognised and professional installer
We believe transparency matters. That’s why you can view genuine, independent customer feedback on our official Certass profile:
Read our verified Certass reviews:
https://certifiedcompetent.co.uk/profile/19-1268/sandringham-windows-norfolk-ltd/
Every installation we carry out is supported by a 10 year limited guarantee, backed by Installsure for additional protection.
This insurance-backed guarantee provides reassurance that your investment is protected, even in the unlikely event we were unable to honour our workmanship guarantee in the future.
When you choose us for your:
Flush casement windows
Composite doors (including stable doors)
Replacement double glazing
Window and door installations in Norfolk
You’re choosing quality products, professional installation, and long-term protection.
Your home is one of your biggest investments. Choosing a Certass registered company with an insurance-backed 10 year guarantee ensures your new windows and doors are installed correctly, legally compliant, and fully protected.
We’re committed to delivering not just beautiful results — but complete peace of mind from start to finish.
Fill out the form below and a member of our team will be able to provide an estimate or quote for you.
