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FENSA is the Competent Person Scheme that is trusted by the industry

telephone

020 7645 3700
FAX 020 7407 8307

FENSA MTC Card
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MTC Card

trustmark logo working with FENSA double glazing

Welcome to FENSA - the government authorised Competent Persons Scheme for the replacement of windows, doors and roof lights in England and Wales.


FENSA works with thousands of double glazing contractors in England and Wales. In choosing a FENSA double glazing registered company the consumer is offered greater protection when purchasing double glazing for their home.

  • For peace of mind, homeowners can use a FENSA registered business for your double glazing installations:

  • 1. Avoid rogue traders – use a FENSA installer
  • 2. More than 10 years of raising standards in the glazing industry.
  • 3. FENSA – the quick and simple route to building regulations compliance

FENSA has issued over 9 million window and door homeowner certificates and is the recognised double glazing industry leader.