Slim Odd Leg Upvc Windows

Slim Upvc Double Glazing - Our slim PVCu double glazed windows have been specifically designed to be installed in properties with narrow wall dimensions.

Slimline Odd Leg Windows are becoming more popular with the growth in demand of properties such as Garden roomsStatic CaravansNarrow BoatsMan Caves, Bespoke Vehicles and Sheds

Benefits Of Slimline Odd Leg Windows

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Slimline Odd Leg Upvc Windows

Our customers have a close affinity and sense of pride with these properties and are looking for solutions that are thermally efficient, maintenance free and slim sightlines. It is also expensive to ‘upgrade’ to the latest models or versions and as an alternative a more economical way of upgrading is to refurb – this is where double glazed doors come in!

Our products is a patent approved upvc system, which has been specially designed for the properties with narrow wall thicknesses.Replacing old aluminium or single glazed windows and doors with new upvc odd leg double glazed windows and doors will not only give your property improved kerb appeal but will also have other added benefits – increased thermal performance and insulation as well as security being the most obvious advantages.

Slimline Odd Leg upvc windows

External Colour Options

The internal colour finish of the window is always white.

Measuring Guidelines

Always measure from inside.

Remove any internal trim around the window to reveal the existing window. Simply measure the existing window. 

If the existing window is a very tight fit or you are measuring a new aperture, you can take the tight sizes (hole size) and reduce the overall size by 5mm to allow for easy installation.
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Need advice? Arrange a call back.

Do not worry if you have rounded corners, these can easily squared off using a hand held oscillating saw. 

The corners do not need to be 'professionally squared' as the external overlap of the upvc window frame will cover the corners and therefore will not be seen.

Installation Guidelines

Installation Overview

Installed from outside, the slim-line odd leg outer frame section sits on the external face of the property, giving a coverage of up to approx 20mm on all sides. 

A sealant is put around the external frame and the property walls thus making the window water tight. ​
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Screw fix or Clamp fix?

The windows are either installed by screw fixing through the depth of the window frame into the property wall.

Alternatively, they can be installed by clamp fix method by knocking an aluminium fixing bar into the window frame, giving a secure clamp fix finish.

We offer 3 fixing kits for wall dimensions of approx 38mm, 53mm and 70mm. 

Sealant Options

By design, odd leg windows have a external lip on the frame. This design gives extra protection against adverse weather and is mainly used on properties with narrow wall construction.

These buildings are normally externally clad. The window is installed from outside, with the external odd leg profile overlapping the cladding externally approx 15mm - 20mm around the perpetrator of the window (dependent on the installation measuring.)
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Neoprene Foam Tape or Silicone?

If using silicone, please ensure you use a non drying sealant. Neoprene tape can be installed.

This gives a neater / cleaner finish. It is also a quicker install however costs more than the silicone finish.

If a weather bar is required, please remember to run a bead of silicone along the area where the frame meets the weather bar. This is to prevent water ingress.

Screw Fix Method

Screw fixing is the most cost effective installation method, however does take more time to install.

You can install the windows using screwing through the depth of the window frame into the timber wall of the property.

The aperture which the window is installed into, will need to be framed so that the screw fixings will bind to. This is normally a timber sub frame or stud wall.
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At least 50mm screws required

Once the window is installed, you may need to cover the internal gap between the window and the wall with a trim.

You can use either a pvc or timber trim which can be purchased from us, or from any builders merchants. 

Note: Screws or internal window trim are not included with the window supply.

Clamp Fix Method

Fixing bars are available in either Upvc and Aluminium profiles Installed by knocking the fixing bar into the specially designed window, giving a secure clamp fix finish.

The fixing bar then doubles up as an internal trim which sits flush to the inner wall. 
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38mm, 53mm and 70mm wall thickness

This is suitable for wall construction of 38mm, 53mm or 70mm. (give or take a few mm either side.)

The fixing kit is an additional option to select on the product page. It is only available in white finish.

Clamp Fixing Kit Information

We offer three size fixing kits, 38mm, 53mm, and 70mm. The measurements denote the wall thickness that the fixing bars can be installed. The profile is an addition to the window frame, which has an internal depth of 38mm.
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38mm wall depth

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53mm wall depth

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70mm wall depth