Secondary Glazing For Sash Windows

Many homeowners are unable build new double-glazed windows to their homes due to financial constraints or because they reside in listed buildings that prohibit any exterior modifications.

Secondary glazing is a fantastic alternative to sash windows and can be installed several ways.

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

Fixed Inserts

There are many different types of secondary glazing that are available for sash windows. Each comes with its own set of benefits, from improved security to reduced condensation. But which is the best option for you?

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

It's not always feasible to add double-glazed windows, especially if your home is classified as a historic property or if you are bound by strict planning regulations dictating what can and cannot be done with your exterior.

In these situations secondary glazing is an excellent alternative that can be installed easily. It's also a popular choice for people looking to update their old home without the need to tear down the original windows with sash and replace them with new ones.

There are a number of different options available for secondary glazing sash windows, each of which is configurable to suit the frame you have. Proprietary systems are usually comprised of painted aluminum frames that fit into the existing bead depth on the sash window. This allows sills and shutters to be retained.

They can be installed with a variety of mounting methods such as glazing clips and Velcro. These are more appealing than screw-fixed units and are ideal for windows that do not require to be opened often. Alternatively, you can opt for an adjustable lift-out unit, which can be lifted out and then put back in place with ease to allow windows to be opened.

Horizontal Sliders

Horizontal sliders are the most sought-after way to improve existing windows with sash. They are also quiet and suitable for older homes or conservation areas as well as listed properties. They can be installed in the majority of cases without the need for external access since they operate from inside.

They can be operated with a hand and can be left open or partially opened for ventilation. They are very effective at eliminating draughts and they also have the benefit of removing harmful UV light. They can be used in conjunction with an insect screen to deter mosquitoes and other insects during the summer months.

Our Trackglaze horizontal sliding systems offer all the benefits of modern double glazing to your original Sash windows. It is comprised of pvc sash windows double sliding track that runs across all four sides of cavity and a simple brush seal around each sheet of glass and finger pull angle handle to function as a hand and decrease bowing. It is available in kits of either 1m or 2m lengths of track and angle which can be joined to make larger spans.

Secondary glazing can have a significant impact on noise reduction, particularly for rail, road and airport traffic. The addition of laminated glass or toughened glasses enhances the acoustic performance. Secondary glazing is a standard feature that can reduce outside noise to 52dB(Rw) and specialized glass like Stadip Silence Laminated Acoustic Glass can provide even greater levels of acoustic performances.

It can boost the efficiency of your house by keeping it warm for longer. This will reduce the use of central heating. It is much cheaper than replacing sash cords your sash windows and can be installed without the need to remove the window or door frame.

Vertical Sliders

Secondary glazing is an affordable option that is often easier to manage than full window replacement. It is also suitable for Listed Buildings & Conservation Areas. It's an ideal solution to upgrade sash windows in Suffolk & Essex with modern insulation benefits while keeping the charm of older homes.

Vertical Sliders were designed to be used in sash window applications where regular hinged panels would not be suitable. The system is comprised of two secondary sashes that are fixed one above the other inside an outer frame. They are supported by spring balances that allow for effortless movement. The system is available as a face-fixed' (installed to the inside of the window) to improve thermal performance or a 'reveal-fixed' version which has a glass to glass cavity, within the original window reveal, to ensure optimal acoustic performance.

They can be equipped with a variety stops and handles to suit the homeowner's preferences by allowing the bottom or top pane to let in air or secured in the closed position to provide security. They can be fitted with an insulation bristle to stop draughts.

Imagine vertical sliders in 'Choices' secondary glazing comes with the same authentic wood detailing you'd expect from a vintage window treatment. It's also available in an array of colours to match your existing bespoke sash windows. It's almost impossible to distinguish from original sash windows as details such as sash horns and traditional joints are incorporated into the design. It's available in a wide range of sizes and accepts glass up to 6.8mm to provide additional insulation against heat loss. A tilt-in option is also available to allow the individual sashes to hinge into the safety stays for easier cleaning.

Hinged Casement

The single-pane hinged secondary glazing can be incorporated into windows made of sash in any style, including traditional and casement sash. Our hinged units are constructed with a secure multi-point locking system and can be supplied with keys and a handle for the lock. This ensures that the glass panel is secured securely in place and pulls tightly against the frame creating a seal designed to minimise heat loss. Hinged windows can be top-hung or side-hung and can be double-glazed. Our double-glazed Windows provide enhanced performance in terms of acoustics and are available in 43dB (for 47dB) and 51dB (for 51dB) or 47dB (for 49dB).

Unlike horizontal sash windows, with movable sashes that slide horizontally within the frame, casement windows can be opened outwards and let in breezes from various angles. They can be opened from the top and bottom to allow controlled ventilation. They are therefore able to increase airflow and offer a fantastic alternative to traditional sash windows.

They are popular in modern homes due to their narrow "sightlines" that allow for an unobstructed view. However, they can also be incorporated into listed properties because they don't require transoms or mullions. They are also a good option for those who live in areas that are difficult to reach as they can be opened with the flick of the handle.

The main drawback of this type of window is that it can block large openings, and could limit the use of certain window treatments. They are difficult to clean, as they swing outwards. They could also require regular maintenance and service.

Lift Out Windows

Secondary glazing can be installed by a variety of methods. The cost will vary according to your choice of materials such as thickness, thickness and kind of glass. Upvc frames are the most expensive followed by aluminium, and then wooden frames. Specialised glass can also increase the cost and also any additional features like security or noise reduction.

The complexity of the installation will also impact the cost. The more complex the project is, the more time and labour will be required. This is also true for historic properties with more intricate sash windows that require expertise and knowledge.

The best place to begin is to assess the condition of your current windows. A survey by a skilled professional will give you an accurate estimate of what the price could be.

Generally speaking, secondary glass will have a minimal impact on the overall appearance of your home. This is thanks to the fact that the modern FINEO double-glazing has slim and discreet frames, meaning you can attain thermal efficiency without compromising on aesthetics.

The horizontal sliding secondary glazing is popular because it allows easy access to the existing sash window 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 ideal for windows that don't open frequently and can be used to allow access to 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.