SKU: tilt-turn-delta

Delta Tilt & Turn Frame


Tilt and turn inward opening window is a versatile and practical solution that provides controlled ventilation, easy maintenance, security, energy efficiency, and aesthetic appeal in residential and commercial buildings.

Tilt Function: One of the primary uses of a tilt and turn window is its ability to tilt inward from the top. This feature allows for controlled ventilation while maintaining security and privacy. When tilted, the window creates a small opening at the top, which allows fresh air to enter the room while preventing access from the outside, making it ideal for times when you want ventilation without fully opening the window.

Turn Function: The second primary use of a tilt and turn window is its ability to swing open inward like a door. This function provides easy access to the outdoors and allows for maximum ventilation when fully opened. It’s particularly useful for cleaning the exterior glass from the inside of the building, as well as for emergency egress in case of fire or other situations requiring a quick exit.

Versatility: The tilt and turn mechanism offers versatility in how the window can be operated. Users have the option to either tilt the window for controlled ventilation or turn it fully open for maximum airflow and access. This versatility makes tilt and turn windows suitable for various architectural styles and room layouts.

Security: Tilt and turn windows typically feature multiple locking points around the frame when fully closed, providing enhanced security against intruders. Additionally, the inward opening design makes it difficult for outside forces to force the window open from the outside.

Energy Efficiency: When properly sealed and closed, tilt and turn windows offer excellent insulation properties, helping to improve energy efficiency by reducing heat loss during colder months and minimizing heat gain during warmer months.

Aesthetics: Tilt and turn windows can contribute to the overall aesthetic appeal of a building, offering a modern and streamlined look. They are available in various colour finishes to complement different architectural designs.
Sound Insulation: The material properties of these windows also contribute to sound insulation, minimizing external noise intrusion and creating a quieter indoor environment.

Additional information

Glazing Thicknesses

Double = 28mm , Triple = 44mm

Sound Reduction

Rw 36dB Rw+Ctr 32dB

Water Tightness

Class 9A, EN12208

U Value's

0.8W/m²K up to 1.2W/m²K

Frame Dimensions

Depth: 78mm (timber) or 87mm (aluminium clad)
Minimum Width: 450mm
Maximum Width 1670mm
Minimum Height: 450mm
Maximum Height: 2590mm
Maximum Weight: 130kg
* Values shown above may be subject to change based on type of glazing selected

PAS24: 2016 Compliant


Accessories (Compatible)

Hoppe Atlanta Handle

Colours (Ironmongery)

Satin chrome, Polished chrome, Brass, White, Black

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SKU: tilt-turn-delta

Delta Tilt & Turn Frame


As standard we advise that you allow for approximately 8-10 weeks from signing off your order. To confirm our current lead times, give us a call on 01324 673250.

Most of our systems can be supplied with both double and triple glazing. However, in the majority of instances double glazing is the preferred option. For more information and to determine which is best for your project, please contact us to arrange an appointment with a consultant who can explain the main differences to you.

Secured by Design (SBD) is the official police security initiative that works to improve the security of buildings and their immediate surroundings to provide safe places to live.

SBD’s product-based accreditation scheme – the Police Preferred Specification – provides a recognised standard for all security products that can deter and reduce crime.  This includes domestic windows and doors, and the components within them such as locks, hinges etc.

Janex is a registered member of Secured by Design and many of our products have been tested to meet the demands of the standard.

A U-Value, in simple terms, indicates how well your window will be at retaining the internal heat within your property and preventing it from escaping to the outside.  U-Values are measured in Watts per square metre, or W/m2 K. The lower the U-Value number, the better the heat retention of the window. All new or replacement windows require a minimum U Value of 1.6 W/m2 K. 

Ask your Janex consultant for further details and they’ll be only too happy to help.

We offer composite timber front and back doors. There are many different styles, colours and specifications when it comes to choosing between these three products. We recommend speaking to one of our Janex consultants or visiting our showroom in order to understand the differences in more detail.

Yes, in most instances you will be able to choose a different colour on the inside of your product to the outside, so for example you could have white inside and red outside.  Or, yellow one side and black the next! A Janex consultant will be able to help you confirm your choice is available.

Replacing your old windows with new double or triple glazed windows will typically add value to your property. Not only do new windows look aesthetically pleasing to the eye they also increase the thermal efficiency in your home keeping you nice and toasty in winter and keep the heat out in the warmer months making double or triple glazed windows an essential decision factor to many potential purchasers.

It is very rare that you’ll need permission to replace your existing windows and doors. However, you will need to check to see if you are located in a conservation area as you may be restricted with what designs or materials you are allowed to use this may also be the case if your property is a listed building.

Absolutely! All of our windows and doors are made to measure and can be tailored to your requirements. This includes choosing from a range of colours, finishes and styles.

‘Engineered’ timber is the key to the strength and long-lasting properties of our windows and doors. It is created through a very old technique of layering wood sections with the grain of one section in the opposing direction to the grain of its neighbour.

Explore Our Products in Real Environments

View a selection of our windows installed in completed jobs.