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Secondary Glazing For Sash Windows

Many homeowners are unable build new double-glazed windows to their homes, either because of financial limitations or because they reside in listed buildings which prohibit any modifications to the exterior.

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

It is made up of an additional pane of glass within the window frame, which stops cold air from getting into your home, while providing insulation and noise reduction.

Fixed Inserts

If you're thinking of secondary glazing for your sash windows, there are a variety of styles to pick from. Each style comes with distinct advantages that range from increased security to less condensation. Which is the most effective choice for you?

The fundamental idea behind secondary glazing is the installation of an additional glass pane inside your existing window frame. This adds a layer of insulation and noiseproofing to your home, enhancing its energy efficiency.

It's not always practical to add double-glazed windows, particularly if your house is a listed property or you are governed by strict planning regulations that dictate what can and can't be done with your exterior.

In these cases secondary glazing is a fantastic alternative that can be installed with ease. It's a popular choice for those who wish to modernize their home without having to replace the original sash window an updated version.

There are a number of different options for secondary glazing sash windows, all of which is configurable to suit your existing frame. Proprietary systems usually have painted aluminium frames that are made to fit within the depth of a staff bead on an existing sash window, which means that sills and shutters can still be retained.

They can be equipped using a variety of methods for installation, such as glazing clips or Velcro. They offer a more stylish alternative to screw-fixed units and are especially suited for windows that don't need to be opened frequently. You can also opt for a fixed lift-out unit that can be lifted out and then put back in place with relative ease to allow your windows to be opened.

Horizontal Sliders

Horizontal sliders are the most popular way to improve existing windows. They are also extremely discreet and are ideal for historic buildings, conservation areas & listed properties. They can be installed in most cases without the need for access from outside because they are operated from inside.

They are easy to operate using a hand, and can be opened wide or left partially open to allow for ventilation. They are very effective at stopping draughts and also have the added benefit of removing harmful UV light. They can be used in conjunction with a flyscreen to keep out mosquitoes and other insects during the summer months.

Our Trackglaze horizontal sliding system provides all the benefits of modern double glazing to your traditional windows made of sash. It is comprised of PVC double sliding tracks that run across all four sides of the cavity and the simple bristle seal that is placed around each glass sheet and finger pull angle handles to act as a handle and decrease bowing. It is available in kits of 1m or 2m lengths of track and angle that can be butted together to create larger spans.

The acoustic benefits of second glazing are significant and can dramatically improve noise reduction from outside especially railway, road and airport traffic. The use of laminated glass or toughened glasses further enhances the acoustic performance. Secondary glazing that is standard reduces outside noise to 52dB (Rw) and special glass, like Stadip Silence Laminated Acoustic Glass can deliver higher levels of acoustic performance.

It can increase the energy efficiency of your home by keeping your house warmer for longer and reducing reliance on central heating. It is less expensive than replacing 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. It's also suitable for Listed Buildings & Conservation Areas. It's a great way to upgrade traditional sash Windows in Suffolk & Essex while retaining their originality.

Vertical Sliders were specifically designed for sash window applications in which hinged panels from the standard range aren't suitable. They have two secondary sashes that are secured with one over the other, within an outer frame. They are supported by robust spring balances for ease of movement. The system is available as a face-fixed' (installed to the inside of the window) to improve thermal efficiency or a'reveal-fixed' version which comes with a glass to glass cavity inside the window reveal, to ensure optimal audio-acoustic performance.

They can be equipped with a variety handles and stop strips to suit the homeowner's preferences, propping open either the bottom or top pane to let in air, or they can be secured in the closed position to provide security. They can also be fitted with an insulating seal bristle to prevent draughts.

The 'Choices' Imagine vertical slider secondary glass has all the authentic wood detailing you'd expect to find in a window covering from the past. It is available in a variety of colours that are compatible with your sash style double glazed windows. It's nearly impossible to tell apart from the original sash window, with details like sash horns & traditional butt joints incorporated into the design. It is available in many sizes and can be fitted with glass up to 6.8mm to add insulation to heat loss. A tilt-in option is available that allows the individual sashes to hinge into the safety stays for easier cleaning.

Hinged casement window sash

Our single-pane secondary glass can be positioned on sash windows of any style, including traditional box sash window sash and casement. Our hinged units can be supplied with a keylock handle and are constructed with multi-point locking. This combination ensures that the glazed panel is securely locked in place and pulls tightly against the frame, forming a sealing to minimize heat loss. Hinged windows can be purchased as either top or side-hung and are also available as double-glazed. Double-glazed windows provide better acoustic performances and are available in 43dB (for 47dB) and 51dB (for 51dB) or 47dB (for 49dB).

Unlike horizontal sash windows, which have movable sashes, slide horizontally within the frame, casement windows can open outwards and let in breezes from a variety of angles. They can also be opened from both the top and bottom to provide controlled ventilation. This is why they can improve airflow and are a viable alternative to traditional windows with sash.

They are commonly used in modern homes due to their small "sightlines" that permit an unobstructed view. However, they can also be installed in listed homes since they don't require transoms and mullions. They can also be utilized in places that are difficult to reach since they are easily opened by turning a handle.

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

Lift Out Windows

secondary glazing sash Window glazing can be put in using a variety ways and the price will vary according to the type, thickness, and the materials you select for your panes and frame. uPVC windows are usually the most affordable, followed by aluminium and finally wooden window frames. Specialised glass can also increase the price and also any additional features such as security or noise reduction.

The complexity of the installation will affect the cost. The more complex the project, the longer and more labour it will take. This is also true for heritage properties with more complex sash windows that require specialized knowledge and expertise.

A good place to start is to evaluate the condition of your current windows. You can get an accurate estimate of the cost by having them examined by an expert.

In general, secondary glazing has little effect on the look of your home. This is thanks to the fact that the modern FINEO double-glazing has slim and discreet frame lines, so you can achieve thermal efficiency without compromising on aesthetics.

A very popular choice for secondary glazing is horizontal sliding, which allows easy access to windows that are already sash for cleaning or ventilation. It is also possible to get them with a tilt function, which is activated by unlocking the catch on the secondary glass panel and lifting it vertically until you reach a predetermined point. This is great for windows that don't open frequently and can be used to make it easier to access air cooling in bay windows. You can use them to open the middle sash double glazing of a traditional Bay Window to create a symmetrical appearance.