Horizontal Sliding Aluminium Secondary Glazing
Secondary glazing is designed to reduce noise and cut heat loss by adding another window inside and in addition to your existing external windows. It is easy to fit and is cost effective and is very popular in conservation areas where the existing external windows cannot be changed. It is ideal near busy roads, airports, train lines or where your existing windows are draughty. Even if you have double glazing already you may still find a useful improvement by fitting secondary glazing.
You can also add a flyscreen to our triple-track secondary glazing allowing you to keep both bugs and the noise out.
| System | Available |
| Economy Odd Leg | ![]() |
| Luxury Subframe | ![]() |
| Heavy Duty Commercial | ![]() |
Please note a Horizontal slider as a triple track is available is our Luxury Subframe system only.
How Our Horizontal Sliding Secondary System Works
How We Can Incorporate A Flyscreen
Our horizontal sliding secondary glazing can be from 400mm to 4900mm wide and between 400mm and 1980mm high. The panels slide on either wheels or hard wearing nylon skids. In the closed position the panels click and latch onto the outer frame. The secondary comes in white, brown or silver colours as standard, or we can colour it in any of 200+ RAL colours. Depending on if you are looking for noise reduction or improving the thermal properties of your window we offer several glass types. If noise is a problem then we offer laminated or "Stadip Acoustic" glass. For improved thermal performance we offer "K" glass. These are just a few of the glazing options, plus most glass can be toughened for when fitting next to doors or close to the floor.
Although primarily used at home in a residential environment, these horizontal sliding secondary glazing windows are also very popular as serving hatches, in office reception areas and hotels.
Key Features:
- Smooth Sliding - the panels run on either hard wearing nylon skids or wheels.
- Available in 2, 3, 4 and 5 panels and choice of 2 or 3 tracks.
- Available in Economy Odd Leg, Luxury Subframe or Commercial Heavy Duty Outerframe system.
- Variety of glass types including special acoustic glass or glass to minimise heat loss.
- Standard colours are White, Brown and Silver, but your secondary can also be made in any RAL colour.
- Recommended widths are between 400mm and 4900mm
- Recommended heights are between 400mm and 1980mm.
Two Track Panel Fitting Advice
Online, interactive panel fitting advice, for two track Horizontal Sliding Secondary Glazing.
Features Of Our 3 (Triple) Track :
- 3 tracks and 3 panels gives approximately two-thirds clear opening - making access to your existing windows easier.
- Easily add a flyscreen - see below.
- Only available with Luxury subframe system.
3 (Triple) Track With Integral Flyscreen
- Our triple track system allows maximum flexibility for summer and winter. In the winter, the secondary glass panels operate as normal secondary glazing - cutting out draughts and noise. In the summer time the flyscreen panel can be slid across to allow ventilation without letting in the bugs during the summer evenings.
When thinking about secondary glazing ask if you can also have a flyscreen fitted. Did you know that calls to NHS Direct regarding mosquito bites increased 28% in the first 5 days of August 2007, compared to the same period in 2006?




