With Government encouragement, the Fenestration Self-Assessment Scheme (FENSA) was set up by the Glass and Glazing Federation (GGF) and other industry bodies in response to Building Regulations for double glazing companies in the UK.


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Any homeowner replacing windows, doors and roof lights in dwellings across England and Wales must comply with all of the current thermal performance and Building Regulation standards. A homeowner also has the responsibility of ensuring that they receive a certificate from a Competent Person Scheme such as FENSA or from a Local Authority Building Control to ensure that the work has been carried out in accordance with up to date regulations.

If you are a FENSA Approved tradesperson, many homeowners will look to you, as you can provide a service that they are actively looking for. Many customers understand the importance of a FENSA Certificate to certify that their installation uses energy-efficient products and meets Building Regulations standards. 

As a homeowner, you can get double glazing prices from FENSA Approved Installers online in no time at all, thanks to our expansive network across the country. If you are a FENSA Approved Installer looking to work with many homeowners in your local area, you can join our network today.


What is FENSA?

As one of the leading bodies in the double glazing industry, FENSA monitors as well as vets its double glazing member companies across the country. They ensure that all of their members adhere to current Building Regulations, with regular assessments by an ‘independent inspection body’ to certify their continued high standards of window and door installation.

Homeowners looking to replace their double glazing will need to choose a company or individual who can deliver an installation that meets Building Regulations standards for thermal performance and energy efficiency. When the job is done, they may need to go to considerable lengths, effort and expense to get the work accredited by the local building authorities.

This is not the case when homeowners work with FENSA fitters, though. That’s because FENSA Approved Installers are able to self-certify when the job is done. If you are a tradesperson registered with FENSA as part of the Competent Person Scheme, your ability to self-certify on the spot and produce the highly sought after FENSA Certificate makes you a desirable choice for homeowners looking for home improvements. This is because you can save them time and money right away.

Giving Homeowners Peace of Mind

As a FENSA Approved Installer, many homeowners will look for you when they need new windows and doors. The certification body regularly assesses its members, so your customers will have total peace of mind that any work you carry out on their property is fully compliant with current Building Regulations.

FENSA protects consumers from the double glazing ‘cowboys.’ They withhold their scheme from any installer unable to pass their independent assessments and will report any company falsely claiming FENSA registration. Homeowners appreciate the honesty and transparency in the way FENSA operates, and this is reflected in the checks carried out for any Approved Installers.

Types of Checks

All companies or installers are thoroughly vetted and checked before joining the scheme.

The following details standard checks which are carried out as part of the process before registering any installer:

  • Pre-approval inspection
  • Part of the pre-approval checks include checking the company’s technical surveyor and installer competencies
  • Financial checks
  • Employer’s Liability for at least £10 million
  • Public Liability for at least £2 million
  • Consumer Contract Documents with clear terms and conditions
  • Any guarantees and warranties must be clearly written and expressed prior to contract and subsequent installation

Benefits of Working with FENSA Approved Installers

If you are a FENSA Approved Installer, there are many reasons why homeowners will look to you and trust you to carry out the work. That’s because FENSA-registered fitters provide many benefits that make them appealing as tradespeople to work with when customers want to replace their double glazing.

Save Time and Money

When homeowners work with an Approved Installer from FENSA, they can receive a coveted FENSA Certificate when the job is done. This demonstrates that the installation of new windows or doors meets Building Regulations standards for thermal performance and was carried out with energy-efficient products. With a FENSA fitter, there’s no need for customers to contact their local authorities; their installer can take care of everything, making you a desirable investment as you help to save time and money.

Insurance Backed Guarantees

All installations that fall under FENSA’s remit must come with an insurance backed guarantee. This is extremely important for homeowners to know since any FENSA registered company must give consumers a guarantee or warranty covering the cost of any rectification work. This is in respect of defects for a period of up to 10 years from the initial date of installation.

Deposit Protection

Any FENSA registered double glazing company that takes a deposit in advance of installations, must also give some form of deposit indemnity. Deposits given must be guaranteed by either a trade association Deposit Indemnity scheme or by credit card protection. FENSA even provides an ‘approved’ list of already vetted insurers that FENSA Registered Businesses must use.


Join Our Network as a FENSA Approved Installer

If you’re a FENSA Approved Installer, you can join our network! Your qualifications, certifications and skill set will make you highly sought after for homeowners who come to us for a double glazing quote for windows and doors.
An independent report commissioned by the Government found FENSA to be the most successful of all competent person schemes in the UK. Across all industries, FENSA is the brand trusted by consumers, local authorities, industry and government alike.

Benefits of Working with Double Glazing on The Web

The benefits of being a FENSA Approved Installer aren’t only for homeowners. As a FENSA-registered fitter or company, you can join our vast network across the UK to receive more leads and grow your business.

We will provide you with high-quality double glazing leads. Homeowners all over the country visit Double Glazing on the Web for window and door installation quotes. If you are a part of our network, you will receive leads near you, giving you more sales opportunities to grow your business. We speak to all our leads before matching you with a customer, so you can be sure of their quality and validity.

How to Join Our Network

Homeowners across the UK come to us for help finding the best double glazing prices in their local area. To accomplish this, we put customers in touch with up to 2 trusted local companies to help them find the best products and service. Our customers are often looking for energy-efficient products that are fitted to Building Regulations standards, which the coveted FENSA Certificate demonstrates.

Frequently Asked Double Glazing Questions

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