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Secondary Glazing For Sash Windows

Many homeowners are not able to add double glazing to their homes due to financial constraints or due to the fact that the building is listed and modifications to the exterior are forbidden.

Secondary glazing for windows made of sash is an excellent alternative and can be installed in various ways.

It is made up of an additional glass pane inside the window frame, which blocks cold air from entering your home, while also providing insulation and noise reduction.

Fixed Inserts

If you're thinking about secondary glazing for your sash windows, there are many different styles to pick from. Each has its own set of advantages, from improved security to reduced condensation. But which is the best choice for you?

The basic premise of secondary glazing is fitting an additional glass pane inside your existing window frame. This adds a layer of insulation and noiseproofing to your home, enhancing its energy efficiency.

However it's not always possible to install new double-glazed windows to your property, especially if you live in a listed structure or are subject to strict regulations regarding planning that define what can and can't be done to your exterior.

Secondary glazing is a fantastic alternative in these situations. It can be set up quite easily. It's a popular choice for those who want to update their period home without the need to replace the original sash window a modern one.

There are a variety of different options available for secondary glazing sash windows, all of can be customized to fit your existing frame. Proprietary systems typically have painted aluminium frames which are designed to fit within the depth of a staff bead on an existing sash window meaning that shutters and sills can still be retained.

These can be fitted with a variety of installation methods, such as glazing clips or Velcro. They provide a more attractive solution than screw-fixed units, and are ideally suited to windows that do not need to be opened often. You can also select an unfixed lift-out unit that can be easily lifted out and reinstalled to open your windows.

Horizontal Sliders

Horizontal Sliders offer excellent thermal insulation and are the most sought-after solution to improve the performance of existing windows made of sash. They are also discreet and suitable for older homes as well as conservation areas and listed properties. They can be installed in most cases without the need for access from outside as they are operated from inside.

They are simple to operate with a hand and can be open wide or left partially open to allow for ventilation. They are very effective at eliminating draughts and they also have the benefit of filtering out harmful UV light. They can be used in conjunction with a flyscreen to keep out mosquitoes and other insects during the summer months.

Trackglaze horizontal sliding systems offer all the benefits of double glazing for the original sash window. It consists of PVC double sliding tracks that run across all four sides of the cavity with an easy bristle seal around each glass sheet, and angle handles that can be pulled by fingers to act as a handle and lessen bowing. It is available in kits of 1m or 2m of track and angle that can be stacked together to create larger spans.

Secondary glazing can have a significant impact on noise reduction, specifically for road, rail and airport traffic. The addition of laminated or toughened glass further enhances the acoustic quality. Standard secondary glazing reduces outside noise to 52dB (Rw) and specialist glass, like Stadip Silence Laminated Acoustic Glass can provide even higher levels of acoustic performance.

It can improve the energy efficiency of your home by keeping your house warmer for longer, and reducing dependence on central heating. It's less expensive than replacing window sashes the original sash window and can be installed without having to remove the existing frame.

Vertical Sliders

Secondary glazing is a cost effective option that is usually more manageable than full window replacement and is perfectly suitable for Listed Buildings & Conservation Areas. It's the ideal option for upgrading traditional windows with sash in Suffolk & Essex with modern insulation benefits while keeping the character of older homes.

Vertical Sliders are specially designed for sash windows, where regular hinged panels aren't appropriate. The system has two secondary sashes that are secured one above the other inside an outer frame. They are supported by spring balances to allow for easy movement. The system is available as a 'face-fixed' (installed to the inside of the existing window) for improved thermal efficiency or a'reveal-fixed version, which has a glass to glass cavity inside the window reveal, for optimum acoustic performance.

You can choose from a variety of stop-strips and handles that suit your preferences. They can be fixed in a closed position for additional security, or propped open for ventilation on the top or bottom glass. They can also be fitted with an insulating bristle seal that can keep out drafts.

Imagine vertical sliders in 'Choices' secondary glazing features the same authentic wood detailing you'd expect from a vintage window treatment and comes in an array of colours to match your existing sash. It is almost impossible to distinguish from original sash windows, since features like sash horns as well as traditional butt joints are integrated into the design. It is available in various sizes and can take glass up to 6.8mm for additional insulation against loss of heat. The tilt-in feature allows the sashes of each window to be hinged upwards to make it easier for cleaning.

Hinged Casement

The single-pane hinged secondary glazing can be fitted to sash windows of any style such as casement and traditional box sash. Our hinged units are supplied with a keylock handle and are made with multi-point locking. This ensures that the glazed panel is held securely in place, and it pulls tight to the outer frame, creating a seal to minimize heat loss. Hinged windows can be side-hung or top-hung and can be double-glazed. Our double-glazed windows provide enhanced acoustic performance and are available in 43dB, 47dB or 51dB.

Casement windows are able open to the outside and catch breezes at various angles. This is unlike the horizontal sash window, which has movable sashes within the frame that move horizontally. They can be opened from the top and bottom for controlled airflow. This is why they can increase airflow and are a viable alternative to traditional sash windows.

They are popular in modern homes due to their small "sightlines" which allow for an unobstructed view. However, they can also be incorporated in listed buildings since they do not require transoms and mullions. They're also a good choice for hard-to-reach areas since they can be opened with the flick of a handle.

This kind of window could be a disadvantage because it can restrict the use of certain window coverings. They can also be difficult to clean since they swing outward, and may require regular maintenance and service.

Lift Out Windows

Secondary glazing can be set up in a variety of ways and the price will vary according to the type, thickness and materials you select for your frames and panes. UPVC windows are generally the most affordable, followed by aluminium and then wooden double glazed sash windows window frames. Specialised glass, along with any extra features such as security or sound reduction may increase the cost of windows.

The complexity of the installation will affect the cost. The more complicated the installation will take longer and more labour will be required. This is also true for heritage properties that have more complex design of sash windows.

The best place to begin is by assessing the condition of your current windows. You can get a reliable estimate of the cost by having them examined by a professional.

In general, secondary glazing has a minimal effect on the look of your home. Modern FINEO double-glazing features thin and subtle frame lines. This lets you achieve thermal efficiency without compromising aesthetics.

A popular option for secondary glazing is horizontal sliding, which allows easy access to your windows that are already sash for cleaning or ventilation. They also come with a tilt feature, that can be activated by opening the catch and lifting your secondary glazing panel vertically up to a certain point. This is perfect for windows that aren't opened often. It can also be used to allow air conditioning access to bay windows. You can use them to open the middle sash window restoration of a traditional sash Bay Window to create a symmetrical appearance.