Why should I choose steel-look windows for my home?
18 January 2024 | General
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At Direct Trade Windows, we use the COR 70 Hidden Sash model from Cortizo to offer tilt & turn windows that combine expert functionality with ease of operation.
With a hidden sash design to hide hardware in a chic slim frame, tilt & turn windows are a great choice for modern or traditional stylings, with our committed in-house team happy to install them in both residential and commercial spaces.
Our tilt & turn windows offer:
Trusted manufacturers since 2000
Professional Installer Network
Made in the UK
Exceptional Quality Control
Knowledgeable Family Run Business
Bespoke Complex Products Fabricated
The COR 70 Hidden Sash Window from Cortizo has a sightline of just 66mm and includes the Arch Invisible handle, hidden hinges, and drainage system. Any element that disrupts the visual balance of the window is eliminated, minimising the aesthetic impact of the window mechanisms, creating a sleek, modern and artistic effect.
Smart Alitherm Heritage Tilt & Turn Windows provide the ideal solution for heritage applications such as large-scale building renovations and large-scale replica refurbishment projects where planning constraints need to be considered.
These windows are designed to be built as a series of horizontal modules which can be stacked using horizontal couples to form a multi-part window featuring a specially designed drip bar between modules.
Window Energy ‘B’ rating
U-value of 1.5 W/m²K
Document L compliant
Designed as a direct replacement for steel windows
Cortizo COR 70 Hidden Sash
Width (L) 1,300 mm
Height (H) 2,400 mm
HD Hinges (Side Hung)
Width (L) 1,200 mm
Height (H) 3,500 mm
Maximum sash weight
Consult maximum weight and dimensions according to typologies.
Possibility of dual colour systems
Colour powder coating (RAL, mottled and rough)
Wood effect powder coating
Anti-bacterial powder coating
Smart Alitherm Heritage Tilt & Turn Windows
Pure White RAL-9010
Jet Black RAL-9005
Gloss Off White
Anthracite Grey RAL-7016
Standard Self Clean
Self Clean Solar Control
Explore common questions about our Tilt & Turn Windows, a versatile window choice that combines expert functionality with chic aesthetics. Learn how these windows offer security, ventilation, and custom finishes for both modern and traditional spaces.Request a Free Quote for Tilt & Turn Windows
Tilt & Turn Windows are a versatile window design that can be installed in both residential and commercial spaces. They offer expert functionality, improved ventilation, and custom finishes.
The COR 70 Hidden Sash Window features a hidden sash design with a slim frame, concealed hinges, drainage, and handle. It maximises glazing surface, eliminates visual disruptions, and offers a sleek, modern aesthetic.
Smart Alitherm Heritage Tilt & Turn Windows are ideal for heritage applications, with a U-value of 1.5 W/m²K, making them energy-efficient. They are designed as a direct replacement for steel windows, meeting Document L compliance.
Yes, Tilt & Turn Windows are fully PAS24 accredited, ensuring security. They also offer improved ventilation, with the tilt function for top ventilation and the turn function for effective air flow.
Yes, these windows offer custom finishes and can be tailored to fit any space, making them suitable for a wide range of design preferences and requirements.
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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