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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.

Why you need it



Become FENSA Approved

Boost your business for less than you think and reassure customers they’ll receive a FENSA certificate when the job’s done.

Find out why to join

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.

Search for a FENSA certificate

Harry's Advice

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

Get some advice

How to find a window or door installer you can trust

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