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Double Glazing in Slough

At Direct Trade Windows, we supply and install a wide range of steel-look aluminium double glazing products, including aluminium windows, doors, internal screens, bi-folds, patio doors and pivot panel doors from leading suppliers Smart and Cortizo. We can also supply and install bespoke aluminium double glazed windows as well as roof lanterns and flat roof windows.

Trusted manufacturers since 2000

Professional Installer Network

Quick Supply

Made in the UK

Exceptional Quality Control

Knowledgeable Family Run Business

Bespoke Complex Products Fabricated

Reliable service and customer support

The best double glazing products are always backed up by a reliable manufacturing process, and at Direct Trade Windows, this is paramount. We’re set up with the latest state-of-the art machining which allows for streamlined fabrication. Our Slough factory is equipped to manufacture a range of double glazing products that have a reputation for being difficult and time consuming to make. Streamlining processes also means we can maintain competitive lead times, ensuring our customers across Slough and the rest of the UK never fall behind.

Cortizo slimline sliding doors on modern property with swimming pool

Why choose Direct Trade Windows?

For over two decades, we’ve been dedicated to expertly manufacturing and installing a wide range of premium products to the highest standard, maintaining stable turnaround times, and providing outstanding customer support, making us the ideal supplier. Our fabricators and fitters have years of experience, meaning Direct Trade Windows is the double glazing company you can rely on.

You can rely on Direct Trade Windows for:

• Premium product offerings
• Bespoke products
• Quality manufacturing and streamlined fabrication
• Competitive lead times
• Highly skilled in-house manufacturing team
• Unrivalled customer support
• For a free, no-obligation quote, contact us today.

Close up view of steel look windows

Delighted Customers Share Their Experiences

At Direct Trade Windows, our commitment to excellence is reflected in our exceptional customer satisfaction.
We take great pride in our impressive 4.9 rating on Google, a testament to the unparalleled quality and service we offer.

Check Out Our Google 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. Attention to work on there fitting. We are extremely happy

Jack Vasiliou

Brilliant company, everyone I dealt with through from initial quoting to installation were very helpful and friendly, the fitters were excellent, the product is fantastic and the price is reasonable, what more can you ask for!

Ryan Flynn

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. Really trustworthy group of people from sales to design to fitting. I would use them again without hesitation. Warm regards Daniel

Daniel Champman

The team delivered great sliding doors at a more competitive price than other suppliers. They responded to our changing development schedule without making it an issue and have provided great aftercare as well.


We had been severely let down by a previous supplier, but when we turned to Direct Trade Windows for help, we hit the jackpot. Helping us to transform a residential development in Hersham, they supplied us with high-quality, ultra-slim Cortizo sliding doors, complete with the bespoke sliding options that we needed. Our requirements were very specific and not readily available on the market, but Direct Trade Windows really went the extra mile to help us out, coming through with quality products and excellent service. We will definitely be using their services again.

Park Lane Developments

Nothing but praise for this outfit. It was a pleasure to work with them. It was a nerve-wracking undertaking for us, the biggest single expense to fit three large window/french door combos in our extension, yet the team made it a relatively relaxing experience with their professionalism and good humour. Thank you all so much for everything you and the whole team have done to get from the initial sale (well done Hash!) to the fun visit we made to the workshop, to the design and its multiple iterations (thank you Taz!) and finally to the installation. Thoroughly recommended.

Eloise Price

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