Find a FENSA
Approved Installer


Replacing windows or doors?

Remember to ask for a FENSA certificate

Before appointing an installer to replace windows or doors, check you'll get a FENSA certificate when the work's complete.

It's all the proof you need of a job done right.

Why you need it

What is FENSA?

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

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What homeowners need to know

Buying or selling a property?

Check if the windows and doors were registered by FENSA and reorder your FENSA certificate if it's lost.

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Harry's Advice

Harry is on a mission to help professionalise installers and protect homeowners across the UK.

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