Why should I choose steel-look windows for my home?
18 January 2024 | General
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At Direct Trade Windows, we expertly install aluminium casement windows in both commercial and residential properties.
Using Smart’s Alitherm Heritage model, this versatile system is an excellent addition to any property, and is ideal for projects that require planning permission.
Our casement windows are:
Trusted manufacturers since 2000
Professional Installer Network
Made in the UK
Exceptional Quality Control
Knowledgeable Family Run Business
Bespoke Complex Products Fabricated
Alitherm Heritage casement windows are built as a series of horizontal modules which can be stacked using horizontal couplers from a multi-part window featuring a specially designed drip bar between modules.
Alitherm Heritage Casement Windows
Pure White RAL-9010
Jet Black RAL-9005
Gloss Off White
Anthracite Grey RAL-7016
Standard Self Clean
Self Clean Solar Control
Peg Stay Monkey Tail & Pear Drop
Peg Stay Catch
Pear Drop Handle
Monkey Tail Handle
Dummy Butt Hinge
Standard Handle Brass
Standard Handle Satin
Standard Handle Chrome
Standard Handle White
Standard Handle Black
Explore common questions about our Aluminium Casement Windows, suitable for both residential and commercial properties. Discover how these windows offer durability, performance, and energy efficiency.Get a Free Quote for Alitherm Heritage Casement Windows
Aluminium casement windows are a versatile window system suitable for both residential and commercial properties. They can be installed in various settings, including homes, offices, and other commercial buildings.
These casement windows offer versatility with options such as fixed, single or double sash, top hung, tilt & turn, or pivot styles. They are thermally efficient thanks to a polyamide thermal break, built for long-term durability, and equipped with full PAS24 accreditation for security.
Alitherm Heritage Casement Windows have a U-value of 1.5 W/m²K, making them energy-efficient and compliant with Document L standards. The polyamide thermal break enhances their thermal performance.
Yes, you can. Depending on your needs, you can choose from a variety of dimensions for side hung, top hung, and fixed casement windows, providing flexibility for different project requirements.
Yes, these casement windows, particularly using Smart's Alitherm Heritage model, are ideal for projects that require planning permission due to their versatile and high-quality design.
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.
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 - 2022
Direct Trade recently replaced a large, faulty sky light. They said they’d take 3 hours, they took two. They did a fantastic job, there was absolutely NO dust or mess, at all. I was amazed… thought I’d be clearing up dust for days! I also didn’t need to get the recess re-plastered or painted – bonus!
I highly recommend Direct Trade. They are a professional and friendly service delivering a high quality product.
Vicky Steele - 2022
I met with Taz at the warehouse to see some examples of the glazing and from the beginning he was extremely professional, personable and helpful. We ordered crittal style windows and doors, a Juliet door, 3 other windows and roof lights and every one of them was excellent quality, secure and well made. I highly recommend Taz and his team at Direct Trade Windows!
Nick Robinson - 2021
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