Fensa The Glasshouse are registered members of FENSA. As FENSA members you have reassurance that, The Glasshouse is checked and inspected by independent inspectors at various stages, along with a sample of our installations to ensure standards are maintained and compliance with Building Regulations are being met.

What is FENSA?

FENSA stands for the Fenestration Self-Assessment Scheme.
Following Government encouragement, FENSA has been set up by the Glass and Glazing Federation (GGF) and other industry bodies in response to Building Regulations for double glazing companies in England and Wales.

When replacing windows and doors, homeowners must comply with current thermal performance standards and ensure they get a certificate from FENSA or Local Authority Building Control. FENSA enables companies that install replacement windows and doors to self-certify compliance under these Building Regulations without the need for a separate assessment from Building Control.


An independent report commissioned by the Government found FENSA to be the most successful of all competent person schemes to date in the UK, across all industries. FENSA is the leading brand trusted by consumers, all Local Authorities, industry and Government.


The Glasshouse are also registered members of The British Fenestration Rating Council. The BFRC Scheme is the UK’s national system for rating the energy efficiency of windows and is recognised within the Building Regulations as a method to show compliance for your replacement windows installation.

BFRC rated energy efficient windows and doors carry a “rainbow” label similar to those on washing machine, fridges and freezers.


TrustMark is the Government backed initiative to help consumers find reliable and trustworthy tradesmen to carry out repaires and installations, inside and outside the home.

As a TrustMark member The Glasshouse’s technical skills are independently checked through on-site inspections. All quality of work, trading practices and customer satisfaction is monitored.

TrustMark is already widely supported by consumer protection organisations and the building industry. Registered members are able to offer insurance backed guarantees to customers.


HomePro are an award winning insurance provider (Insurance Times Award 2002) and have become one of the main players in the business. They specialise in providing insurance and services to the Trade and Construction industries, offering products that are highly competitive and with levels of service and cover that are unrivalled in our sector.

As a home owner you should always make sure that any home improvements carried out by a contractor carry a HomePro Insurance Backed Guarantee. Good contractors will automatically offer you a HomePro Insurance Backed Guarantee.

As a member if The Glasshouse ceases to trade during the guarantee period, and you have reason to make a claim against the guarantee for faulty workmanship or materials, the policy will provide for an approved contractor to remedy the work. The cost of the work will be covered under the Insurance Backed Guarantee policy.

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