Energy conservation

Selectaglaze secondary glazing systems incorporate efficient seals to markedly reduce draughts and when glazed with low emissivity glass will reduce heat loss by up to 65%. This will lower running costs and assist with carbon reduction objectives. The domestic housing sector is responsible for 17% of the UK’s CO2 emissions and 29% of the UK’s energy consumption. With rising energy prices and a growing need to cut emissions, many are looking at ways to make properties more energy efficient. The demand for more housing is at an all-time high. Brown-field sites are being developed, and disused warehouses, churches and offices are being converted into living space. These all come with their own issues and often need a high level of care to ensure thermal and noise insulation is addressed to create a comfortable environment for the occupant.


Secondary glazing offers very effective noise insulation and will outperform normal double glazed windows. The additional secondary window is generally fitted 100-150mm away from the primary window and the wide air space limits noise transmission across the panes. 

Property developers

Many traditional commercial buildings suitable for conversion to homes are in noisy city centres, an attractive location for living and working, but dealing with excessive noise levels can be a critical factor for a successful development. Selectaglaze will work with acousticians and architects to identify the most effective solutions. New homes built on brown-field sites are often in areas that are highly exposed to noise from traffic and other forms of transport. New primary glazing will meet Part L of the building regulations but will often struggle to meet the higher acoustic requirements for these sites.  The introduction of secondary glazing, in combination with the primary windows, will perform to the required standards.  Selectaglaze secondary glazing systems fitted with standard glass are capable of reducing noise levels by 42 - 45dB and even higher levels if thicker glass is introduced.

More secure

Windows are normally seen as “soft targets” for intruders and a secondary window, particularly when fitted with a simple lock, provides an additional barrier to entry. Selectaglaze also offers enhanced systems accredited to “Secured by Design” and "The Loss Prevention Scheme" and are a Police Preferred Specification. These windows undergo rigorous testing and the most secure range matches the resistance offered by heavy bars or grilles and avoids the home feeling like a fortress.

Private estates and private landlords

Many private landlords wish to improve the sustainability of their estate as comfortable, well insulated properties are more attractive in the lettings and selling market. Selectaglaze will work to develop a clear understanding of the needs of the Estate to ensure continuity of treatment and a responsive service.

Social Housing

Social Housing stock includes traditional buildings some of which are Listed. In these homes secondary glazing will meet the requirements of The Decent Homes Standard to improve insulation levels. Also many inner city properties will suffer from excessive noise or have security problems that must be addressed by the ‘Secured by Design’ initiative. Selectaglaze will work with maintenance teams, surveyors and other interested parties to design solutions that will work for the provider and the tenant.

Existing stock

For existing homes in the UK, a large proportion can improve insulation levels by replacing windows. However, this is not an allowable option for listed buildings or those in conservation areas. Also large numbers of traditional homes and many converted commercial buildings incorporate window designs that are an important part of the UK’s architectural heritage. Secondary glazing is a reversible adaptation to a building and therefore is an acceptable solution for listed buildings up to Grade I and for the large number of building owners that wish to retain original windows.

Listed building consent

Work on Listed buildings has to be covered by a Listed Building Consent and when considering work in Conservation Areas advice should be obtained from the local Conservation Officer. In most instances, secondary glazing will be an acceptable addition.