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10 Failing Answers To Common Secondary Glazing Sash Windows Questions Do You Know The Right Ones?
Secondary Glazing For Sash Windows

Many homeowners aren't able to install double glazing to their home, either because of financial limitations or due to the fact that the building is listed and exterior modifications are prohibited.

Secondary glazing for sash windows is a good alternative that can be put in using a variety of methods.

It consists of an extra glass pane inside the existing window frame which blocks cold air from entering your home, while also providing insulation and noise reduction.

Fixed Inserts

There are a variety of styles of secondary glazing for sash windows. Each style comes with distinct advantages that range from increased security to less condensation. Which one is the best option for you?

The principle behind secondary glazing is to install an additional glass pane within the frame of your existing window. This creates an extra layer of soundproofing and insulation which can dramatically improve your home's energy efficiency.

It's not always possible to install double-glazed windows particularly if you live in a listed property or if you are bound by strict planning regulations dictating what can and can't be done to your exterior.

In these situations, secondary glazing is a fantastic alternative that can be set up with relative ease. It's a popular choice for those who want to modernize their home without the need to replace the original sash window with a modern one.

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

They can be fitted using a variety of installation methods that include glazing clips and Velcro. These are more appealing than screw-fixed units and are best suited for windows that do not need to be opened often. Alternatively, you can choose a fixed lift out unit, which can be lifted and put back in place with ease, allowing your windows to be opened.

Horizontal Sliders

Horizontal sliders are the most popular method to enhance the appearance of your sash window. They are also discreet and are ideal for historic homes as well as conservation areas and listed properties. In most cases, they are installed without access from outside because they operate from inside.

They are simple to operate by hand and can be opened wide or left partially open for ventilation. They are effective in keeping out draughts, and also filter harmful UV light. They can be used in combination with a flyscreen to ward off mosquitoes and other insects during the summer months.

Our Trackglaze horizontal sliding system offers all the advantages of modern double glazing to your traditional sash windows. It consists of PVC double sliding track on all four sides of the cavity and a simple brush seal around each sheet of glass and a finger pull angle handle to function as a hand, reducing bowing. It comes in kits of 1m or 2m track and angle that can be put together to create bigger spans.

The acoustic advantages of secondary glazing are significant and can dramatically reduce noise from outside especially road, rail & airport traffic. The addition of laminated or toughened glass further enhances acoustic performance. Secondary glazing that is standard reduces outside noise to 52dB (Rw) and specialist glass, like Stadip Silence Laminated Acoustic Glass, can achieve higher levels of acoustic performance.

It can improve the energy efficiency of your house by keeping it warm for longer. This can reduce the need for central heating. It's less expensive than replacing the original sash window and can be installed without removing the existing frame.

Vertical Sliders

Secondary glazing is a cost-effective option that is usually more manageable than full window replacement. It is also suitable for Listed Buildings & Conservation Areas. It's the ideal option to upgrade windows made of sash in Suffolk & Essex with modern insulation benefits while keeping the charm of older homes.

sash window weights repair barnsley Repair My Windows And Doors were specifically designed to be used in sash window applications where hinged panels of the regular kind aren't suitable. The system features two secondary sashes, which are fixed one above one within an outer frame. They are supported by spring balances that allow for ease of movement. The system can be put on the inside of an existing window for greater thermal efficiency or equipped with a cavity between the glass and the frame to maximize acoustic properties.

You can pick from a variety of stop-strips and handles that meet your needs. They can be put in the closed position to provide additional security, or propped open to allow ventilation on the top or bottom glass. They can be fitted with an insulating seal bristle to prevent draughts.

'Choices' Imagine vertical slider secondary glazing has the same authentic wood detailing you'd expect from an antique window treatment. It's available in a variety of colors to match your existing sash. It's nearly impossible to distinguish from the original sash windows, as details like sash horns and traditional butt joints are integrated into the design. It's available in a broad range of sizes and accepts glass up to 6.8mm to provide additional insulation against loss of heat. A tilt-in option is available allowing the sashes to be hinged into the safety stays to help with cleaning.

Hinged Casement


Our single-pane hinged secondary glass can be fitted to windows in sash of any design including casement and traditional box sash. Our hinged units can be supplied with a keylock handle and are made with multi-point locking. This will ensure that the glass panel is securely secured and is pulled tightly against the frame, creating a seal to minimise loss of heat. Hinged windows are available either top or side hung and are also available by double-glazing. Double-glazed windows offer enhanced sound insulation and are available in 43dB, 47dB and 51dB.

Unlike horizontal sash windows, with movable sashes that slide horizontally within the frame casement windows can be opened outward and capture breezes from a variety of angles. They can be opened both from the top and bottom for controlled airflow. This is why they can improve airflow and offer an effective alternative to traditional windows made of sash.

They are popular in modern homes due to their small "sightlines" that permit clear views, however they can also be put in listed buildings since they don't require transoms or mullions. They can also be used 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 could limit the use of certain window coverings. They can be difficult to clean as they can swing outwards. They also may require regular maintenance and servicing.

Lift Out Windows

Secondary glazing can be installed in a variety of ways and the cost will differ according to the type, thickness and materials you select for your panes and frame. UPVC frames are the cheapest expensive followed by aluminium, and wooden frames. Specialized glass, in addition to any other features such as security or sound reduction can also raise prices.

Another aspect that can affect the cost is the complexity of the installation. The more complicated the installation is, the more time and labor will be required. This is especially the case for older homes with more intricate design of sash windows.

Analyzing the condition of windows that are in use is a good way to start. You can get a reliable estimate of the cost by having them checked by professionals.

In general, secondary glazing has little effect on the look of your home. Modern FINEO double-glazing is thin and subtle frame lines. This lets you improve thermal efficiency without sacrificing aesthetics.

A popular choice of secondary glazing is horizontal sliding, which gives easy access to your existing sash windows for cleaning or ventilation. These windows also come with a tilt function, which is activated by unlocking the catch and lifting the secondary glazing panel vertically up to a certain degree. This is a great option for windows that don't get frequently opened. It can also be used to allow air conditioning access in bay windows. You can also use them to open the middle sash of a traditional sash Bay Window to create a symmetrical appearance.

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