Interested in Secondary Glazing?

Secondary Glazing

Secondary Glazing

Secondary Glazing sympathetically installed

We offer bespoke Secondary Glazing systems to all clientele, whether you are in the Commercial Sector, a Homeowner, in the Trade or DIY.

secondary glazing for listed buildings installed over stain glass windows

The main benefits of Secondary Glazing include reduced noise levels, increased heat retention and enhanced security.

Secondary Double Glazing retaining function of original window

Our Secondary Double Glazing products are designed with discretion in mind, take a look at the various systems available.

Secondary glazing is the process through which a discreet, internal window is fitted to an existing single or double-glazed window to enhance performance. It’s seen as a desirable alternative to double glazing – especially for heritage properties – Secondary glazing for listed buildings allows you to maintain the external character of the structure whilst taking advantage of the benefits created by double glazing.

With secondary glazing, you enjoy all the benefits that come with an extra layer of insulation over your windows. Our customers receive an 80% reduction in noise breaching the primary window and up to 66% reduction in heat loss over single glazing with a u-value as low as 1.3w/m2k achieved with secondary glazing and heavy curtains. It is also 10% more heat efficient than double glazing. In addition to all of this, our systems enhance the security of your property. Click here for more details on the positive difference our products make.

We are able to offer a wide range of styles and colours, aiding our ability to meet unique requirements, whether it be for your home, for listed buildings or conforming to a commercial specification. In addition to it’s performance, our systems offer a sympathetic approach against the primary window; matching sight-lines to look as unobtrusive as possible from the inside as well as out. This is especially helpful when it comes to listed buildings, specifically concerning Grade I & Grade II listed buildings, or properties within a conservation area.

Specifically Secondary glazing for listed buildings gives owners of heritage and historic buildings the ability to bring their often underperforming thermal and acoustic properties inline with today’s industry standards. Secondary glazing for listed buildings is an efficient and effective way to increase the performance of the property and the comfort of the homeowner whilst maintaining the functionality and not detracting from the authentic external appearance.

Furthermore, all systems are backed with a 10-year warranty if fitted by one of our experienced installation teams, so get in touch and find out how we can transform your property with secondary glazing.

Our products are available in the following styles, which are designed to match both the aesthetics and function of your primary windows. Click on one of the icons to understand more about features and performance.

Horizontal Slider


Vertical Slider


Hinged Unit

Liftout Panel


Fixed Panel


Bespoke Design


For further information on our secondary glazing range, click here to download our brochure, alternatively you can speak with us directly by telephoning 01246 588334 or email