15/10/2026
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FENSA is the industry standard for replacement window and door installers self-certifying compliance with the building regulations.
Here is why you should look for the FENSA logo when having replacement windows and doors fitted in your property.
Save time and costs:
β’ Compliance with the Building Regulations without the added cost and time of arranging assessments by Building Control
Confidence in FENSA installers:
β’ FENSA is the brand trusted by all local authorities, industry, and government.
β’ All FENSA registered companies are continually re-assessed by an independent inspection body to ensure consistency of Building Regulations adherence and service.
β’ FENSA proactively protects consumers from the cowboys β not only by withholding the scheme from those unable to pass FENSAβs independent assessments; but also by reporting to Local Authorities and Trading Standards companies who erroneously claim FENSA registration, to enable prosecution.
FENSA Building Regulations & WER Certificate:
β’ This will be sent by FENSA directly to you to demonstrate compliance, vital in the event you need to sell your house.
β’ The FENSA team can offer support to your solicitor when tracing missing certificates during the sale of your property.
How are FENSA Registered Business vetted and inspected?
FENSA Registered Businesses are vetted at the start of their registration which includes checking the following;
β’ Pre-approval inspection
β’ Part of the pre-approval checks include the companyβs surveyor and installer competencies
β’ Financial checks
β’ Employers Liability for at least Β£10m
β’ Public Liability for at least Β£2m
To ensure Building Regulations and thermal performance standards are consistently maintained, the installation work of every FENSA registered Business is continually inspected by the UKAS accredited independent body, the British Board of Agreement.
