The Glass and Glazing Federation (GGF) is a trade association for companies who make, supply or fit flat glass and related products. This includes double glazing, Energy Efficient Windows, replacement windows, doors, conservatories, applied film, hardware, safety glazing, sealants, fire resistant glass, emergency glazing, decorative glass, secondary glazing, solar control and plastics.

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FENSA - "The industry gold standard for replacement windows and doors - the proven brand trusted and demanded by consumers and local authorities"

• Over 9000 registered businesses.
• Over 6 million homeowner FENSA certificates.
• Over 24% of households in England and Wales have used FENSA to comply with the Building Regulations.
• Partnerships with industry leaders e.g BFRC (Window Energy Ratings - Energy Efficient Windows) and the Energy Saving Trust

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TrustMark helps you find reliable, trustworthy tradesmen to make improvements and repairs inside and outside your home.

TrustMark is a not for profit organisation supported by Government, the building industry, retailers and consumer protection groups.

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Contractors Health and Safety Assessment Scheme (CHAS). We are dedicated to completing health and safety pre-qualification assessments to a nationally recognised and accepted threshold standard. CHAS is a founder member and current Chair of Safety Schemes in Procurement – Competence Forum or SSIP

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