What is FENSA?

FENSA is a government-authorised scheme that monitors building regulation compliance for replacement windows and doors. Each FENSA Approved Installer, from large national brands to small local companies, is assessed regularly by us to ensure its compliance to building regulations is continually maintained.

What FENSA does!

FENSA’s mission is to improve window and door replacements across England and Wales, by professionalising installers and protecting homeowners.

We make sure the work complies with building regulations, is energy efficient, and registered with the local council. And verify that every FENSA Approved Installer’s guarantee is insured.

Why you need a FENSA certificate?

• Confirms compliance with building regulations
• Shows your installation’s energy efficient
• Ensures it’s registered with the Local Council
• Verifies your installer’s guarantee is insured
• Essential when selling the property

What's covered?

FENSA covers the replacement of external windows, doors, roof windows and roof lights in your home, against the relevant Building Regulations. Note that the property must be sited on its original footprint, and the use and size of rooms mustn’t be altered.

What’s not covered?

FENSA doesn’t cover the installation of windows and doors in new conservatories, porches, new builds, new extensions, repairs (where frame not included) and commercial properties.