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Secondary Glazing For Sash Windows

Many homeowners aren't able to install double glazing to their homes, either due to financial constraints or because the structure is listed and any modifications to the exterior are not permitted.

Secondary glazing is an excellent alternative to sash windows and can be put in various ways.

This is a double-paned, insulated glass that fits into the frame of your window. It offers insulation and noise reduction, while preventing cold air from entering your home.

Fixed Inserts

There are a variety of styles of secondary glazing for Sash windows. Each offers a unique number of advantages, ranging from improved security to reduced condensation. Which is the best choice for you?

The fundamental idea behind secondary glazing is the installation of an additional glass pane within your window frame. This provides an additional layer of insulation and noiseproofing to your home, improving 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 building or are subject to strict regulations regarding planning that dictate what can and can't be done to your exterior.

Secondary glazing is a fantastic alternative in these circumstances. It can be put in quite easily. It's also a popular option for those who want to modernize their period property without having to take down the original windows with sash double glazing and replace them with contemporary ones.

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

They can be fitted with different installation methods including glazing clips or Velcro. These offer a more aesthetic solution than screw-fixed units, and are ideally suited to windows that aren't required to be opened regularly. Alternatively, you can opt for an adjustable lift-out unit that can be lifted and put back in its place with ease, allowing your windows to be opened.

Horizontal Sliders

Horizontal Sliders offer excellent thermal insulation and are the most well-known option for enhancing existing windows made of sash window restoration. They are also extremely discreet and suitable for older structures, conservation areas and listed properties. They can be fitted in most cases without the need for access from outside since they operate from inside.

They can be operated by hand and can be left open or partially opened for ventilation. They are effective in preventing draughts, and they also block harmful UV light. They can be combined 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 for your classic sash windows. It consists of PVC double sliding tracks on all four sides of the cavity, an easy bristle seal around each glass sheet, and angle handles that can be pulled by fingers to serve as handles and reduce bowing. It is available in kits comprising either 1m or 2m lengths of track and angle which can be joined to make larger spans.

Secondary glazing can have a significant effect on noise reduction, particularly for rail, road and airport traffic. The addition of toughened or laminated glass further enhances the acoustic quality. Secondary glazing that is standard reduces outside noise to 52dB (Rw) and special glass, like Stadip Silence Laminated Acoustic Glass can deliver even more impressive levels of acoustic efficiency.

It can boost the energy efficiency of your house by keeping it warm for longer. This will reduce your reliance on central heat. It's less expensive than replacing the original sash window and can be installed without the need to remove the existing frame.

Vertical Sliders

Secondary glazing is a cost effective option which is often less expensive than full window replacement. It is also suitable for Listed Buildings & Conservation Areas. It's an ideal solution to replace sash windows in Suffolk & Essex with modern insulation benefits while retaining the charm of older homes.

Vertical Sliders are designed especially for windows with sash openings where standard hinged panels don't work. They feature two secondary sashes that are secured, one over the other, within an outer frame and are supported by strong 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 performance or a 'reveal-fixed version that comes with a glass-to-glass cavity, within the original window reveal, for optimum audio-acoustic performance.

You can choose from a variety of stop-strips and handles that match your preferences. They can be put in a closed position for additional security or propped open to allow ventilation on the top or bottom glass. They can also be fitted with an insulation bristle to block draughts.

The 'Choices' vertical slider secondary glass features the same authentic wood details you'd expect to find in a window covering from the past. It comes in a range of colors that are compatible with your flush sash windows. It's nearly impossible to distinguish from original sash windows as features like sash horns and traditional butt joints are integrated into the design. It is available in various sizes and can be fitted with glass up to 6.8mm to provide additional insulation against loss of heat. The tilt-in option allows the sashes of each window to be hinged upwards to make it easier for cleaning.

Hinged Casement

Our single-pane hinged secondary glass can be fitted to windows in sash of any design including traditional and casement sash. Our hinged units can be supplied with a keylock handle, and are manufactured with multi-point locking. This ensures that the glazed panel is locked in place and is pulled tightly to the frame, forming a seal to minimize heat loss. Hinged windows are available as either top or side-hung and can also be made with double-glazed. Double-glazed windows are a great way to improve acoustic performance and are available in 43dB, 47dB and 51dB.

In contrast to horizontal sash windows which have movable sashes, slide horizontally within the frame, casement windows can be opened outwards and catch breezes from a variety of angles. They can be opened from the top and bottom for controlled airflow. They also increase airflow and are a great alternative to traditional sash window.

They are often used in modern homes because they have small "sightlines" and unobstructed views. However, they can also be incorporated into listed homes due to the fact that they don't require transoms or mullions. They can also be used in areas that are difficult to access since they can be opened simply by turning the handle.

This kind of window can be a disadvantage because it may limit the use of certain window coverings. They are difficult to clean, as they open outwards. They also may require regular maintenance and care.

Lift Out Windows

Secondary glazing can be put in using a variety ways and the price will vary according to the type, thickness and materials you select for your frames and panes. UPVC windows are typically the most affordable followed by aluminium, and finally wooden window frames. Specialized glass, in addition to any extra features such as security or sound reduction may also increase prices.

Another factor that will influence the cost is the complexity of the installation. The more complex the project is, the more time and labor will be required. This can also apply to historic properties with more complex sash windows that require expertise and knowledge.

The best way to start is to assess the condition of your current windows. A survey by an experienced professional will give you a precise estimate of what the cost could be.

Generally speaking, secondary glazing will have minimal impact on the overall appearance of your home. Modern FINEO double-glazing is slim and distinct frame lines. This lets you get the most efficient heat without compromising aesthetics.

The horizontal sliding secondary glazing option is a popular choice because it permits easy access to the existing sash window to clean or for ventilation. These are also available with a tilt feature, which can be activated by opening the catch and lifting your secondary glazing panel vertically to a predetermined point. This is ideal for windows that aren't opened often and is a great way to facilitate access for air cooling in bay windows. You can use them to open the middle sash of a traditional sash Bay Window to create a more symmetrical appearance.