UK Window of the Year 2015
'A' energy rated as standard
Woodgrain finish
Choose any RAL colour
Secured by Design available

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Design your own

Durable, strong and efficient are three words to describe our PVCu Sash Windows – that’s because we use only the highest quality materials available. Ideal for replacement windows, our PVCu Sash Windows have no risk of deteriorating over time.

All Welglaze windows are made bespoke to your requirements. Whether you’re looking for a unique glass design or colour to match your client’s style, we can supply a window to match.

With all Welglaze PVCu Sash Windows, there is a 10-year guarantee. You can find out more via our downloadable guarantee PDF or by speaking to one of our experts.

Using a colour bonding facility, we’re able to offer more than 200 RAL colours. All of our PVCu Sash Windows are available in 9 standard colours so there really is something for everyone.

Smooth White
White Woodgrain
Irish Oak
Cream Woodgrain
Grey Woodgrain
Chartwell Green Woodgrain
Golden Oak
Black Woodgrain
NEW Living Oak

If you want something extra special then why not take a look at our bespoke colour bonding options. We offer a range of more than 200 'RAL' colours enabling you to add that personal touch to your new sash windows. Bespoke colour bonding is available in both smooth and woodgrain finishes. Smooth white finish comes as standard.

Key Features

Run-through Horns
Plant-on Horns
Standard Tilt Knob
Heritage Tilt Knob
Standard Lock
Standard Keep
Heritage Lock
Sash Pull
Ring Pull
Bow Handle
Quick Release Tilt Arms
Seamless Weld available on woodgrain windows
Deep Bottom Rail
Trickle Vents
Georgian Bars

Hardware Colours

Antique Black
Satin Chrome
Hardex Graphite
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Product Overview

Heritage Solution

Sash Horns are not a requirement for contemporary windows. However, they can be requested to give the appearance of a classic timber box sash window. Deep bottom rail options are available for creating a replica of existing windows. A classic PVCu design is available, with the added benefit of improved visual appearance.

Secured by Design

With our PVCu Sash Windows, you have the opportunity to request Secured by Design (SBD). SBD’s focus is to prevent crime in the home and on commercial premises, as well as promoting the use of security standards for a selection of applications and products.
If you want SBD, this must be requested as part of your window specifications, as SBD is not standard.

Easy clean facility

We like to make life as easy as possible, that’s why our PVCu Sash Windows come with an easy clean tilt facility as standard – this excludes woodgrain external and smooth white internal windows.

Energy Efficient

The most significant component when it comes to the overall thermal efficiency of our windows, is the glass specification. Each sliding sash window is supplied as standard with 24mm double glazed units incorporating Edgetech’s TruePlas spacer bar and manufactured in accordance with British standards.


Key Measurements


Standard sill height – 40mm
Upstand sill height – 60mm
Mid-rail height internal – 60mm
Mid-rail height external – 48mm
Outer Frame Depth – 135mm


Minimum width – 475mm
Maximum width – 1250mm
Minimum height – 800mm
Maximum height – 2300mm

Technical Documents

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