Our Trusted Industry Partners & Fabricators

At Window Fitters Ltd, our reputation for durability and performance is built on the quality of materials we install. We partner with the UK's leading profile manufacturers, glass fabricators, and security hardware brands to ensure every installation meets strict British Standards and Building Regulations.

By maintaining direct relationships with these trusted suppliers, we offer commercial developers and residential homeowners premium products at competitive rates, backed by comprehensive structural warranties.

Our Core Suppliers & Brands

VEKA & Eurocell

We source top-tier uPVC window and door profiles from VEKA and Eurocell. These A-rated systems offer exceptional thermal insulation, are fully recyclable, and are designed to withstand the British weather while maintaining their appearance with minimal maintenance.

REHAU & Schüco

For high-end residential and commercial glazing, we install REHAU uPVC systems and Schüco aluminium profiles. These brands are renowned for their slim sightlines, structural strength, and outstanding U-values compliant with Document L.

Yale & Ultion Locks

Security is non-negotiable. All our residential doors feature multi-point locking systems from Yale and high-security anti-snap cylinders from Ultion. These components are tested to PAS 24 and Secured by Design standards.

Pilkington Glass

From energy-efficient K-Glass to structural laminated safety glass, we source double and triple-glazed units using Pilkington's premium glass technology. This ensures compliance with Document K (glazing safety) and optimal solar gain control.

Collaborating on Commercial & B2B Projects

Are you a contractor, developer, or commercial surveyor? In addition to our standard supply-and-fit domestic services, we collaborate with construction firms under specific B2B arrangements, including labor-only site fitting or full commercial supply and installation.

To learn more about our commercial capabilities, safety standards, JCT contract alignment, and RAMS compliance, please visit our dedicated B2B Commercial Glazing & Subcontracting page.

Become a Trusted Supplier or Distributor

If you represent a fabricator or hardware manufacturer and share our commitment to exceptional standards and reliability, we are always open to expanding our network. Contact our commercial team directly at info@windowfitters.uk to discuss procurement partnerships.

Contact us today to schedule a free survey.

We will work with you to choose the right door and window for your needs and budget, and then we will professionally install it.

Window Fitters Ltd is a double glazing company. We've been doing this for over 10 years in the UK, and we're good at it. With our services, you can rest assured that you're getting the best value for your money.


We would be happy to discuss your needs and provide you with free advice.

Our team will answer any questions you may have or help you choose the right installation service for your home or business.

Verified Google & MyBuilder Reviews

Window Fitters 4.9 / 5.0 Rating ★★★★★ Read 42+ Live Google Reviews →
★★★★★

"Stunning Sash Windows in Croydon"

"Marian and his team replaced our old Victorian sash windows. They were clean, fast, and the double glazing has completely blocked out the street noise. Highly recommended!"

- Sarah T., Croydon
★★★★★

"Excellent Bifold Doors in Bromley"

"Installed beautiful grey aluminium bifold doors for our new kitchen extension. Smooth gliding mechanism and great insulation. The best quote we got in Kent."

- David M., Bromley
★★★★★

"Perfect Front Door Upgrade in Sutton"

"Very happy with our new composite door installation. Excellent lock security and high-quality GRP slab finish. Fast half-day fitting and no mess left behind."

- James L., Sutton
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