Aluminium Tilt & Turn Windows

Name: Aluminium Tilt & Turn Windows
Brand: Direct Trade Windows
Rating: 5 (200 reviews)

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Tilt an turn window in a childrens bedroom

tilt and turn window in front of chair with sea view

Expert functionality and chic aesthetics

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:

Invisible efficiency – Hidden sash maximises the glazing surface.
Versatile style – The optimal choice for modern and traditional applications.
Security – Fully PAS24 accredited.
Improved ventilation – The tilt allows for top ventilation, while the turn function allows effective air flow.
Custom finishes – Tailored to fit any space.

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Trusted manufacturers since 2000

Professional Installer Network

Quick Supply

Made in the UK

Exceptional Quality Control

Knowledgeable Family Run Business

Bespoke Complex Products Fabricated

Cortizo COR 70 Hidden Sash

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.

Concealed hinges, drainage and handle
Inward opening allowing to place the base of the frame on the site itself
Maximum glazing of 40mm
Maximum sash width of 1300mm
Maximum sash height of 2400mm
Maximum sash weight of 160kg

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Modern office building with long vertical windows

tilt and turn windows on large commercial building

Smart Alitherm Heritage Tilt & Turn Windows

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

Smart Alitherm Heritage Tilt & Turn Windows

Colours

Glass Options

Downloads

Gallery

Cortizo COR 70 Hidden Sash

Technical Specification

Glazing
Max. 40 mm
Min. 26 mm
Opening possibilities
Inward opening
Side hung
Tilt & turn
Tilt only
Sightlines
Frame 70 mm
Sash 70 mm
Profile thickness
Window 1.9 mm
Polyamide strip length
35 mm
Maximum sash dimensions

Standard Solution
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
160 kg

Consult maximum weight and dimensions according to typologies.

Finishes
Possibility of dual colour systems
Colour powder coating (RAL, mottled and rough)
Wood effect powder coating
Anti-bacterial powder coating
Anodised

Smart Alitherm Heritage Tilt & Turn Windows

Technical Specification

Brand Alitherm
Material Aluminium Polyamide
Dual Colour Yes
Thermally Broken Yes
NBS Available Yes
WER Rating B
U Value 1.5W/m²K (using 1.0W/m²K glass unit)
Document L Compliant Yes
Kitemark Yes
BS 6375-1:2009 Yes
BS 4873 Yes
Side Hung Max Width (mm) 600
Side Hung Max Height (mm) 1400
Top Hung Max Width (mm) 1400
Top Hung Max Height (mm) 1400
Fixed Max Width (mm) 2100
Fixed Max Height (mm) 2100
Single Door Max Width (mm) 900
Single Door Max Height (mm) 2100
Glazing (mm) 24, 28, 32 & 36 double or triple glazed units
Frame Depth (mm) 47
Typical Sightlines (mm) 59

Colours

Pure White RAL-9010

Matt White

Matt Brown

Jet Black RAL-9005

Grey

Gloss White

Gloss Off White

Dark Red

Dark Grey

Dark Green

Dark Brown

Dark Blue

Cream

Black

Anthracite Grey RAL-7016

Airforce Grey

Glass Options

Unglazed

Standard Self Clean

Standard Tough

Solar Control

Self Cleaning

Self Clean Solar Control

Satin Obscure

Laminated Security

Downloads

Alitherm Heritage Brochure

Alitherm Heritage Data Sheet

Gallery

tilt and turn window in a modern white room

Tilt & Turn Windows - Your Questions Answered

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

What are Tilt & Turn Windows, and where can they be installed?

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.

What sets the COR 70 Hidden Sash model from Cortizo apart?

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.

What are the key features of Smart Alitherm Heritage Tilt & Turn Windows?

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.

Can Tilt & Turn Windows provide both security and ventilation?

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.

Can these windows be customised to fit specific spaces?

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.

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.

Daniel

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