Achieve Economic Glass Windows in a Snap with a 3-Step Process
Last updated on May 9, 2025
In the market for new double glazing? Here's a helpful guide to ensure you find the right installer.
Do Your Homework
Read the small print of any offer to know exactly what is included. It's essential to be clear about the number and style of windows and doors desired before asking for quotes. Remember, canceling custom-made windows might not be an option once the order is signed.
Compare Quotes
It is recommended to get up to 4 comparison quotes. Each company should be fighting for your business, so don't hesitate to ask for the best possible price. Never sign a contract immediately. Take time to consider all your quotes carefully.
Check Credentials
To deal with legitimate, compliant double glazing installers, look for companies registered with both the Glass and Glazing Federation (GGF) and Fenestration Self Assessment Scheme (FENSA).
You can visit the websites or contact local double glazing companies that explicitly state membership or registration with both GGF and FENSA. For example, companies like Emerald Windows & Doors clearly advertise that they are FENSA registered and members of the GGF.
Alternatively, search for double glazing installers in your area who mention FENSA registration on their profiles or listings. Some glaziers on trade directories highlight their FENSA registration, and you can inquire if they also hold GGF membership.
Lastly, check industry or trade association websites directly where they may have searchable membership directories for approved installers with both certifications.
Avoid Unqualified Window Fitters
Avoid window fitters who only provide a mobile phone contact number. Installing new windows yourself is not advisable unless you have the necessary experience and qualifications.
Look Out for Sales and Special Offers
Look out for sales and special offers, especially during slower times of year such as January or July. UPVC is usually the cheapest option for double glazed windows and doors, while wood and aluminium are likely to be more expensive.
Find the Best Deal
It's common for double glazing salespeople to start with a high price and then reduce it to secure a sale. Informing other companies about a cheaper quote can encourage them to reduce their price.
Finance Options
Payment by finance is available. Quotes can be obtained by clicking a provided link.
Popular Window Styles
The most popular window styles are casement, sash, tilt turn, and dual turn. Casement windows are generally the cheapest, while dual turn windows are the most expensive.
By using this guide, you could save up to £140 per year with new double glazing. Clicking the provided link can help you get comparison quotes for local engineers. Happy shopping!
Upgrading your home-and-garden with double glazed windows can enhance your lifestyle and energy efficiency. To ensure you find the best deal, research companies that are both Glass and Glazing Federation (GGF) and Fenestration Self Assessment Scheme (FENSA) registered, as these are legitimate, compliant double glazing installers. Keep in mind that the cost of different window styles, such as casement, sash, tilt turn, and dual turn, can vary greatly, with casement windows being the most affordable and dual turn windows being the most expensive.
