Commercial Curtain Wall Systems & Structural Glass Fitting

Welcome to Window Fitters Ltd, your reliable partner for architectural glazing. With over 10 years of experience in structural glazing, we provide high-performance aluminium curtain wall installation services for offices, commercial developments, and high-end residential extensions. Based in Croydon, our skilled installers serve London, Surrey, and surrounding areas (within a 40-mile radius), delivering direct accountability and exceptional thermal performance on every project.

Commercial aluminium curtain wall installation by Window Fitters Ltd

High-Performance Aluminium Curtain Wall Systems

Aluminium curtain walling is a non-structural glazed envelope system (often integrated with structural facade installations) designed to keep the weather out, let natural light in, and optimise the building's thermal envelope. We specialise in the installation and maintenance of several curtain wall configurations:

  • Stick Curtain Wall Systems: Constructed and glazed on site from aluminium frames, offering complete flexibility for complex elevations and custom openings.
  • Unitised Curtain Wall Systems: Comprising factory-glazed units assembled in clean conditions and lifted onto the building facade for fast, efficient installation.
  • Pressure Plate & Cover Cap Glazing: A secure system where double or triple-glazed units are held by pressure plates and finished with aesthetic exterior cover caps.
  • Structural Silicone Curtain Walls: Frameless exterior glass facades that use structural adhesives to secure the glass units, creating a smooth glass surface.

Flexible Contracting: Supply & Fit or Installation Only

To meet the diverse procurement structures of commercial projects, we offer both full-service and labour-only contracts. Our "Supply and Fit" service covers everything from initial measurements and structural survey to sourcing high-performance profiles and carrying out the installation. If you have already purchased your profiles, we offer an "Installation Only" contract, providing a dedicated team of glazing professionals to hang, seal, and adjust the curtain wall units. For example, we frequently collaborate with main contractors to install customer-supplied aluminium framing systems on new build offices. Read about our work packages on our contracts page.

Strict Compliance, CDM 2015 & Site Safety

Installing heavy glass curtain walls requires strict site safety management. Our directly employed glazing professionals operate in full compliance with the Construction (Design and Management) Regulations (CDM 2015). We provide detailed Risk Assessments and Method Statements (RAMS) for every project, ensuring safe lifting, handling, and fitting. Our operations are fully protected by a £5,000,000 public liability insurance policy, ensuring safety and accountability at all stages. Learn about our safety standards on our safety measures page.

Building Regulations & Building Control Coordination

Our aluminium curtain wall installations are fully compliant with UK Building Regulations, meeting Document L requirements for thermal performance (U-values) and Document K for safety glazing. Window Fitters Ltd does not hold FENSA registration, which means we do not issue self-certification certificates. Instead, we coordinate directly with the relevant local authority building control departments or independent approved inspectors. We manage the submission of technical drawings, U-value calculations, and site surveys, coordinating site inspections to ensure full certification of the glazing works.

If you are planning an office refurbishment, a structural glazing upgrade, or require professional installation for an architectural curtain wall, our team is ready to help. Contact Window Fitters Ltd today to discuss your glazing specifications, view our coverage on our location page, or request a measurements survey.


Marian Gheorghe - Head Fitter and Active Director at Window Fitters Ltd

About the Author: Marian Gheorghe

Head Window Fitter & Active Director, Window Fitters Ltd

Marian Gheorghe is the Head Window Fitter and Active Director of Window Fitters Ltd. With over 15 years of hands-on experience in the glazing and glazing industry across London, Marian leads the direct-employment labour force and oversees technical safety compliance for all residential and commercial JCT contracts.

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Marian Gheorghe

Author & Technical Reviewer: Marian Gheorghe

Head Installer & CEO, Window Fitters Ltd

Marian Gheorghe is the Active Director and Team Leader Installer at Window Fitters Ltd. With over 15 years of hands-on experience, he oversees technical safety and UK Building Regulations compliance for all residential and commercial glazing contracts.

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Window Fitters Ltd installs windows, doors, fire doors, and commercial glass facades across London and Surrey. Croydon head office, 40-mile service radius, 100% directly employed CSCS-carded fitters.

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"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
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"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
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"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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