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Secondary Glazing For Sash Windows

Many homeowners are not able to add double glazed timber sash windows glazing to their house because of financial limitations or because the building is listed and modifications to the exterior are not permitted.

Secondary glazing is a great alternative to sash windows. It can be put in various ways.

It consists of an extra pane of glass within the window frame that prevents cold air from getting into your home, as well as providing insulation and noise reduction.

Fixed Inserts

There are many different styles of secondary glazing available for sash windows. Each offers a unique set of advantages, from increased security to lower condensation. But which is the best option for you?

The fundamental idea behind secondary glazing is to fit an extra pane of glass within the frame of your existing window. This creates an extra layer of soundproofing and insulation, which can significantly improve your home's energy efficiency.

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

Secondary glazing is an excellent alternative in these situations. It can be set up relatively easily. It's also a popular choice for those who want to modernize their home without the need to tear down the original sash windows and replace them with new ones.

There are a number of different systems available for secondary glazing sash windows (look at here now), each one of that can be adapted to fit the frame you have. The proprietary systems typically feature painted aluminium frames which are made to fit within the depth of a staff bead on an existing sash window so that shutters and sills can still be retained.

They can be equipped with a variety of mounting methods, including glazing clips and Velcro. These are more appealing than screw-fixed ones and are ideally suited to windows that don't need to be opened often. Alternatively, you can opt for a fixed lift-out unit that can be lifted and put back in place with ease to allow windows to be opened.

Horizontal Sliders

Horizontal Sliders offer excellent thermal insulation and are the most well-known solution to improve the performance of existing windows with sash. They are also very discrete and ideal for historic buildings, conservation areas, and listed properties. In the majority of cases, they are installed without having access to the outside since they are operated from inside.

They are simple to operate with a hand and can be opened wide or left partially open to allow for ventilation. They are very effective in stopping draughts and also have the added benefit of filtering out harmful UV light. They can be combined with an insect screen to deter mosquitoes and other insects during summer months.

Our Trackglaze horizontal sliding system provides all the benefits of modern double glazing for your classic sash windows. It is comprised of PVC double sliding track that runs across all four sides of the cavity, a simple brush seal around each glass sheet and a handle for a finger pull angle to function as a hand and decrease bowing. It is available in kits with 1m or 2m of track and angle that can be stacked together to create larger spans.

The acoustic benefits of second glazing are extremely significant and can dramatically enhance noise reduction from outside, particularly railway, road and airport traffic. The addition of laminated glass or toughened glasses further improves the acoustic performance. Standard secondary glazing can reduce outside noise by 52dB(Rw), and specialist glass like Stadip Silence Laminated Acoustic Glass can provide even greater levels of acoustic performances.

It can increase the energy efficiency of your home by keeping it warmer for longer, and reducing dependence on central heating. It is cheaper than replacing the original sash window and can be installed without the need to remove the frame.

Vertical Sliders

Secondary glazing is a cost effective alternative that is usually less expensive than full window replacement. It's also suitable for Listed Buildings & Conservation Areas. It's the ideal option for upgrading traditional sash windows in Suffolk & Essex with modern insulation benefits, while maintaining the traditional look of older homes.

Vertical Sliders are specifically designed for sash windows, where regular hinged panels aren't appropriate. They come with two secondary sashes that are secured to one sash over the other, within an outer frame. They are supported by robust spring balances that allow for effortless movement. The system is available as a 'face-fixed' (installed to the inside of the window) for improved thermal efficiency or a'reveal-fixed' version which comes with an air cavity for glass, within the original window reveal, for optimal sound quality.

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 to allow ventilation on the glass's top or bottom. They can be fitted with an insulating seal bristle to prevent draughts.

Imagine a vertical slider with 'Choices' secondary glazing has the same authentic wood detailing you'd expect from a period window treatment. It's also available in a variety of colors to match your existing sash style double glazed windows. It's difficult to tell apart from the original sash window with details like the sash's horns and traditional butt joints incorporated into the design. It is available in many sizes and can take glass up to 6.8mm to add insulation to loss of heat. The tilt-in feature allows the individual sashes of the window to be hinged backwards to make it easier for cleaning.

Hinged Casement

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

Contrary to horizontal sash windows which have movable sashes that slide horizontally within the frame, casement windows can be opened outwards and let in breezes from different angles. They can also be opened from the top and bottom to provide controlled airflow. They can therefore improve airflow and are a great alternative to traditional sash windows.

They are used in modern homes due to their narrow "sightlines" which allow for unobstructed view, but they can also be incorporated into listed properties because they do not require mullions and transoms. They are also a good choice for hard-to-reach areas because they can be opened with the twist of a handle.

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

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 the materials you select for your frame and panes. uPVC windows are usually the least expensive, followed by aluminium and finally wooden window frames. Specialised glass can also increase the price and include additional features such as sound reduction or security.

The complexity of the installation will impact the cost. The more complex the project, the longer and more labor-intensive it will be. This is especially the case for older homes with more complex designs for sash windows.

Assessing the condition of windows in use is a good way to begin. Having them surveyed by a skilled professional will give you a precise estimate of what the price could be.

In general, secondary glazing will have minimal impact on the overall look of your home. This is due to the fact that the modern FINEO double glazing has slim and discreet frame lines, so you can achieve thermal efficiency without sacrificing aesthetics.

The horizontal sliding secondary glazing is popular because it allows easy access to the sash window for cleaning or ventilation. They can also be purchased with a tilt feature, which you can activate by releasing the catch on the secondary glazing panel and lifting it vertically to a preset point. This is ideal for windows that aren't opened often and can be used to facilitate access for air cooling in bay windows. It is also possible to use them to open the middle sash of a traditional sash bay window to give a more symmetrical appearance.