Britelite double glazing windows review (2024)

Britelite offers affordable, high-quality double- and triple-glazed windows. Our Britelite double glazing windows review provides an objective, in-depth look at the company’s products and services to assist you with your home upgrades.

By Katharine Allison

October 19, 2023
Britelite double glazing windows traditional Georgian windows in cream

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Jump to: Fast facts | Key features | Upsides and downsides | How do Britelite windows work? | Competitor comparison | Cost | Expert opinions | Customer reviews | Our recommendation | Methodology

An established brand for more than 50 years, Britelite specialises in affordable triple and double glazing windows, doors, conservatories, and flat roofing solutions. Designed to suit a variety of homes, from period to new builds, it offers a range of styles, finishes, and colours, including Georgian bar sash windows and lightweight aluminium frames. Installing more than 18,046 windows in 2020, Britelite serves customers throughout Kent, Sussex, Surrey, Essex, and London from its showrooms in Maidstone, Kent; and Wickford in Essex. 

Britelite’s accreditations

Every product in Britelite’s portfolio has been awarded the BSI Kitemark, demonstrating that its claims of supplying high quality are accurate and reliable, according to independent industry experts. Installations are carried out by professional teams, and the post-installation support includes a final inspection, maintenance advice, and a fully transferable 10-year insurance-backed guarantee. 

Alongside the BSI Kitemark, Britelite has a collection of accreditations and memberships:

Britelite has designed a Recommend a Friend Scheme to reward its customers. If a recommendation results in a booking, you will receive a gift to the approximate value of £50.

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Fast facts about Britelite double glazing windows

Key features

Upsides and downsides of Britelite double glazing windows

Review highlights of why Britelite may or may not be the right choice for your home:


Reliable, established brand

Limited choice of styles and materials

Showrooms and website offer galleries for inspiration

Limited finance options

Full, on-going aftercare and advice

The 10-year warranty is shorter than many other companies

Price transparency, stating VAT and fitting costs upfront

Britelite’s online quote system could be hard to navigate

Guarantees on work/products provided

Adheres to the GGF Consumer Code of Selling Practices

How do Britelite double glazing windows work?

Britelite double glazing windows close-up of white uPVC Georgian windows in a brick building.
Britelite offers customisation options for its double glazing windows, including traditional Georgian bars. (Image credit: Britelite)

Britelite’s double- and triple-glazed windows incorporate a series of features unique to them, such as its eight-point locking system. The SAC multi-shoot bolt system is designed to withstand attacks by force or cunning, while the frame’s internal beading only allows the glass to be removed from the inside.

Up to 80% of the energy lost by windows is around the edge of the glass. Britelite has designed a new style of spacer bar they call the Swiss Spacer Bar to prevent the heat from escaping from these vulnerable areas. 

Britelite’s triple glazing includes a five-chambered design to maximise energy efficiency and minimise acoustic leaking. This also adds to the security properties already offered by meeting the exacting standards of Secured by Design (SBD)—the official police security initiative dedicated to securing your home.

Britelite’s Gold Seal Guarantee is in addition to the 10-year installation guarantee and ensures that the installation service is stress-free, leaves no mess, and is carried out on the day you requested. 

Britlite promises to advise you of the week your installation will take place. If this is not achieved, they will deduct £50 from the installation cost. Furthermore, if they cannot keep to the prearranged day, you will have another £25 deducted.

Britelite double glazing windows versus competitors

Britelite has made its reputation producing and installing affordable, high-quality windows for many years, and although only operating across the south-east, it is one of the biggest names in the industry. The company is, however, limited on frame materials, so if you are looking for a wider choice of frame materials and colours, you may be better off considering Safestyle. Anglian is another option offering variety in its window frame styles. 

Regarding Britelite’s 10-year installation warranty inclusion, Everest provides a lifetime guarantee—although this comes as an optional cost addition.

How much do Britelite double glazing windows cost?

Britelite’s costs vary depending on the type of windows, sizes, furnishings, and so on, making it impossible to give an exact price guide. However, according to online price guides, this is what you can expect to pay for casement windows:

MaterialCost per casement window unit


From £250 to £500


From £500 to £605

What the experts say

Britelite windows are ideal for homeowners who want a straightforward double or triple glazing solution with expert installation at a low cost.”Federation of Master Builders

Customer reviews

Britelite double glazing windows wide shot of a traditional brick detached house with white uPVC Georgian windows
Customer reviews point out the ease of using Britelite for their double glazing windows. (Image credit: Britelite)

“Great company and good quality. Amazing communication during the full process, they are explaining everything during the process with video call to go into details. They fitted the windows in 1 daay to perfections. Good quality, great communication, competitive prices and attention to details. Highly recommended for a job well done.”—Rino Greco via Trustpilot

“We have been very impressed with our experience using Britelite windows—very good quality windows and doors. They have been very efficient throughout from the beginning measuring up stage through to the installation.”—Eugene Moore via Trustpilot

“Brilliant virtual sales experience, which takes away all preconceptions one might have regarding double glazing sales! Great product! Just a couple of hiccups on installation, but nothing major or that wasn’t sorted in good time; otherwise, it would have received a 5-star rating. Highly recommend these guys..”—Peter via Trustpilot

Our recommendation

Britelite produces high-quality double- and triple-glazed windows at affordable prices. Although the product range isn’t as extensive as some other window companies, the options it does supply perform well and look great, according to its many satisfied customers. This is independently verified by Britlite’s products being awarded the respected BSI Kitemark accreditation.

Incorporating innovative security systems, Britelite recognises the importance of secure window locks and frame design in creating a safe home. As a result, many of its products are SBD accredited.  

If you are looking to lower your energy bills, increase the security of your home, and improve its curb appeal without spending a fortune, Britelite windows are well worth considering.

How we chose the top double glazing window providers in the UK

Every double glazing window installer we feature has been assessed and scored according to our Reviews Standards matrix. This considers multiple factors to produce a reliable, trustworthy review, including quality, guarantees, price bands, and customer experiences.

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