Window & Door Supply & Fit Services
At Window Fitters Ltd, we provide complete Supply and Fit glazing services as well as Installation-Only glazier labour. Backed by our network of leading UK fabricators, our window and door contractors source premium uPVC, aluminium, and timber frames at exclusive trade rates for residential and commercial projects across London and Surrey.
Request a Custom Sourcing QuoteDirect Fabricator Sourcing Options
Premium Windows
Sourcing double and triple glazed window units in casement, tilt & turn, and vertical sliding sash profiles in uPVC, aluminium, and timber.
Architectural Doors
Modern composite entrance doors, slimline aluminium bifold systems, French patio doors, and heavy-duty sliding doors sourced to your specifications.
Heavy-Duty Hardware
Premium handles, high-security multi-point locking systems, letterboxes, anti-snap cylinders, and structural hinges in satin, brass, or chrome.
uPVC Replacement Panels
Thermal-efficient replacement panels in a wide variety of classic, glazed, and reinforced patterns. Perfect for standard entrance door panels.
Direct Sourcing Advantages
Managing a glazing renovation or new-build project can be complex. When you source frames, glass, and hardware directly through our trade network, you get trade-only benefits built for efficiency and savings:
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Direct Trade Pricing We pass our exclusive UK fabricator trade discounts directly to you, eliminating retail markup.
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Full Compliance Sourcing Every profile and glass unit is certified for Document L (thermal efficiency) and Document K (safety glass) regulations.
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Single-Point Accountability No finger-pointing. We manage dimensions, shipping logistics, safety storage, and the final expert labour installation.
Our 4-Step Sourcing & Fitting Process
From initial site measurement to building control sign-off, we coordinate the complete supply chain for your windows and doors.
Consultation & Survey
We consult on styles and take millimetre-perfect measurements, verifying safety zones and thermal compliance.
Fabricator Matching
We source frames and glazing specifications through our manufacturer network to secure the absolute best price.
Bespoke Manufacture
Your items are built to order under strict factory controls, including toughening processes and custom colours.
Delivery & Fitting
We receive, inspect, transport, and professionally install the components on site with building control coordination.
uPVC Door Panels Sourcing & Installation
If you are looking to replace a damaged or dated uPVC entrance door panel while keeping your existing frame intact, we offer a massive catalogue of replacement panels. We source and professionally fit the panel to your existing door frame, saving you the cost of a full door replacement.
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 industry across London, Marian leads our direct-employment labour force and oversees technical safety compliance for all residential and commercial JCT contracts.
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.
Book a free site survey. No obligation, no pressure.
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.
Our estimators respond within 24 business hours with a fixed-price quotation.
Verified Google & MyBuilder 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!"
"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."
"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."