About Us

Slough . Since 2000

Premium aluminium, made on our doorstep.

We design, fabricate, and install architectural aluminium windows and doors from our Slough factory. No middlemen, no shortcuts.

What started in 2000 as a PVC manufacturer is now one of the region’s leading aluminium fabricators. Today we build everything from slimline sliding doors and steel-look windows to roof lanterns and bespoke architectural glazing. Our work goes into homes, extensions, and commercial projects across Surrey, London, and the South East, for homeowners, architects, specifiers, and trade partners alike.

25+
Years experience
1,000+
Installations
In-house
Fabrication
FENSA
Registered
Close-up of an aluminium window profile
Manufacturer-agnostic

The right system for the job. Every time.

We work exclusively with the two strongest names in aluminium: Cortizo and Smart Systems. Between them they cover everything from ultra-slim sliding doors to heritage steel-look windows and high-performance commercial glazing.

Need maximum glass on a slider? That’s Cortizo COR Vision. Period steel-look windows? Smart’s Heritage system. Tilt and turn for a commercial spec? Cortizo’s COR 70 Hidden Sash. Right product, right job, every time.

Made in Slough

Fabricated in our own factory. No middlemen.

Premium systems

Cortizo and Smart Systems, the best in aluminium.

FENSA & BFRC accredited

Certified, with a 10-year guarantee.

Built in Slough

From raw profile to finished frame, all under one roof.

Every product is fabricated in-house using CNC machining and precision cutting. That gives us full quality control at every stage, and lets us take on the work many fabricators won’t: oversized steel-look doors, curved and arched windows, and bespoke structural glazing.

One pivot door or a full house of windows. Same standard, same care.

Technical support

From first sketch to final fix.

Specification advice, technical drawings, U-value calculations, planning guidance. Our team is involved from the design stage right through to handover, so projects don’t get stuck waiting for answers. We work directly with homeowners on extensions and renovations, and with architects, specifiers, and trade partners on residential and light commercial schemes.

Visit us

See it, touch it, slide it open.

Our Slough showroom has full-size sliding doors, steel-look windows, and architectural glazing on display, alongside the full range of RAL colours, hardware, and glass options. Visits are by appointment, so you get our full attention and a proper walkthrough of your project.

Book a showroom visit

What our customers say

4.9 on Google from verified customer reviews

★★★★★

“Highly recommend this company for doing a fantastic job in fitting windows and doors. Very good quality windows, fantastic service and all for a good price.”

Homeowner
★★★★★

“We had been severely let down by a previous supplier, but when we turned to Direct Trade Windows for help, we hit the jackpot. They supplied us with high-quality, ultra-slim Cortizo sliding doors, complete with the bespoke sliding options that we needed.”

Cortizo sliding doors
★★★★★

“Superb company. Highly recommend them. Proper engineers for design and fitting. We changed spec due to some building changes and they were clear and responsive to queries and redesign.”

Trade client

Got a project in mind?

Send us your drawings or specs and we’ll come back with pricing, lead times, and system recommendations. No pressure, no hard sell.