Find a FENSA
Approved Installer
All the proof you need
Replacing windows or doors?
HOMEOWNERS
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
INSTALLERS
Start winning more work
Boost your business for less than you think.
Become a FENSA Approved Installer.
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
