Secondary Glazing

Secondary Glazing

Secondary Glazing Units are perfect for Listed buildings and conservation areas! and are commonly recommended by English Heritage and Listed Property Owners Club.

They are a cost-effective method of insulating and sound proofing your home. On average you can save around 10% on your heating bills and is an ideal solution if you are unable to upgrade or replace your existing windows.

With a variety of secondary glazing units to suit all windows styles including the following;

For Sash windows we can supply and fit either a tilt back vertical slider unit which slides like a sash window but also tilts into the room for the ease of cleaning, or if you prefer a more affordable option, we also offer an unbalanced vertical slider which opens like a sash window but minus the balances, this unit has spring catches to lock it in position.

With Casement windows depending on the style we can supply and fit either a Hinged unit or Horizontal Sliders which slide smoothly for ease of ventilation and are available with two to five panels. The units can be easily removed for cleaning and can also be fitted with an integrated fly-screen for all year round use to keep insects out of the kitchen.

The units can be fitted with standard 4mm float glass, 4mm Obscured or Textured glass for Privacy, 6mm Toughened Glass, Safety or 6.8mm Acoustic glass. Prices will depend on glass chosen.

Contact us: to arrange a site visit where we would be happy to discuss your requirements.

*Most Popular style

Tilting vertical slider

Frequently Asked Questions

Grade 2 listed Buildings

As secondary does not change the original fabric of the building it can be installed within a Grade 2 listed buildings. Often it is not possible to have double glazing installed into your existing single glazed windows especially on listed building or properties that have conservation restrictions in place, so having secondary glazing is a very popular choice for home owners with properties that fall into that category.

Condensation

In most cases, secondary glazing will help stop condensation, but this cannot be guaranteed . Adding secondary glazing will typically reduce the amount of warm damp air getting to the face of the primary window and this helps reduce the likelihood of condensation.

To allow for balanced, low level ventilation within the window aperture. Correct levels of air convection between the glass surfaces of the primary window and the secondary glazed panels will allow both internal and external air temperatures to moderate and, as a result reduce the chances of condensation forming from extreme temperature variations.

You must be aware though that Secondary Glazing windows do not act as a de-humidifier in buildings where damp may be a problem through the masonry, nor will it rectify badly insulated primary windows.