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. Find your nearest approved installer today to start your home improvements!
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.
Check if the windows and doors were registered by FENSA and reorder your FENSA certificate if it's lost.
Harry is on a mission to help professionalise installers and protect homeowners across the UK.