Secondary Glazing Sash Windows: 11 Thing You've Forgotten To Do

· 6 min read
Secondary Glazing Sash Windows: 11 Thing You've Forgotten To Do

Secondary Glazing For Sash Windows

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

Secondary glazing for windows with sash is a great alternative and can be installed with a variety of ways.

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

Fixed Inserts

If you're thinking about secondary glazing for your sash windows there are several different styles you can pick from. Each style comes with each of its own benefits 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 inside the window frame. This adds an additional layer of soundproofing and insulation which can dramatically increase the efficiency of your home's energy use.

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

Secondary glazing is a fantastic alternative in these situations. It can be set up fairly easily. It's also a popular option for those looking to upgrade their old home without having to tear down the original sash windows and replace them with modern ones.

There are a variety of different systems for secondary glazing on Sash windows. Each can be adapted to fit the frame you already have. Proprietary systems typically have painted aluminium frames that are designed to fit within the depth of a staff bead on an existing sash window, meaning that shutters and sills are still able to be used.

These can be fitted using a variety of methods for installation, such as glazing clips or Velcro. They offer a more stylish solution than screw-fixed units, and are particularly suited to windows that don't need to be opened frequently. You can also choose a fixed lift-out unit that can be easily removed and then reinstalled to open your windows.

Horizontal Sliders

Horizontal sliders are the most popular method of enhancing the appearance of a windows. They are also very discreet and suitable for older structures, conservation areas and listed properties. They can be fitted with the need for access from outside since they operate from inside.

They are simple to operate by hand and can be opened wide or left partially open to allow for ventilation. They are very effective at stopping draughts and also offer the added benefit of removing harmful UV light. They can be used in combination with a flyscreen to ward off mosquitoes and other insects during summer months.

Our Trackglaze horizontal sliding system offers all the benefits of modern double glazing to your traditional windows made of sash. It consists of PVC double sliding track on all four sides of the cavity with a brush seal around each glass sheet and finger pull angle handle to act 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 create larger spans.

The acoustic benefits of secondary glazing are extremely significant and can dramatically improve noise reduction from outside especially the airport, rail and road traffic. The addition of laminated or toughened glass further enhances the acoustic quality. Standard secondary glazing reduces outside noise to 52dB (Rw) and specialist glass, such as Stadip Silence Laminated Acoustic Glass can deliver higher levels of acoustic efficiency.

It can improve the energy efficiency of your home by keeping your house warmer for longer and decreasing dependence on central heating. It is less expensive than replacing your sash windows, and can be installed without the need to remove the existing window or door frame.

Vertical Sliders

Secondary glazing is a cost-effective option that is often simpler to manage than a full window replacement. It's also suitable for Listed Buildings & Conservation Areas. It's a great option to replace sash windows in Suffolk & Essex with modern insulation benefits while keeping the charm of older homes.

double glazed sash windows wood www.repairmywindowsanddoors.co.uk  were specifically designed for sash window applications in which hinged panels from the standard range are not suitable. The system has two secondary sashes that are secured one over the other inside an outer frame. They are supported by spring balances to allow for effortless movement. The system can be placed on the inside of a window to provide greater thermal efficiency or fitted with a space between the glass and the frame to ensure the best acoustic performance.

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

The 'Choices' vertical slider secondary glass comes with all the authentic wood detailing you'd expect to see in a window covering from the past. It is available in a variety of colors that will match your existing sash. It's nearly impossible to differentiate from the original sash window with details like the sash's horns and traditional butt joints included in the design. It is available in many sizes and can take glass up to 6.8mm to provide additional insulation against heat loss. The tilt-in option permits the sashes of each window to be hinged upwards on safety stays to facilitate cleaning.

Hinged Casement

Our single-pane hinged secondary glazing can be incorporated into windows made of sash in any style including casement and traditional box sash. Our hinged units are manufactured with secure multi-point locking and are available with keys lock handles. This will ensure that the glazed panel is locked securely in place, and it pulls tightly against the frame creating a seal designed to minimize heat loss. Hinged windows are available as either top or side-hung and can also be made by double-glazing. Double-glazed windows are a great way to improve sound insulation 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 let in breezes from different angles. They can be opened both from the top and bottom to allow controlled ventilation. They also improve airflow, and offer a fantastic alternative to traditional sash windows.

They are used in modern homes due to their small "sightlines" which allow for an unobstructed view. However, they can also be incorporated into listed properties because they don't require transoms and mullions. They're also a great choice for hard-to-reach areas as they can be opened by the flick of a handle.

This type of window can be a problem as it could limit the use of certain window coverings. They can be difficult to clean since they swing outwards. They also may require regular maintenance and service.

Lift Out Windows


Secondary glazing can be set up with a variety of methods and the cost will vary depending on the type, thickness and the materials you select for your panes and frame. Upvc frames are the most expensive followed by aluminium, and wooden 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 will take longer and more labour will be required. This is especially true for heritage properties that have more complex designs for sash windows.

Examining the condition of your windows that are in use is a good way to begin. The survey conducted by a skilled professional will give you a precise estimate of what the price might be.

In general secondary glazing has an insignificant impact on the look of your home. Modern FINEO double-glazing has slim and distinct frame lines. This allows you to achieve thermal efficiency without compromising aesthetics.

The horizontal sliding secondary glazing is popular due to its easy access to the sash window to clean or for ventilation. These are also available with a tilt feature that can be activated by opening the catch and then lifting the secondary glazing panel vertically up to a certain level. This is perfect for windows that don't get frequently opened. It can also be used to allow air conditioning access to bay windows. They can be used to open the middle sash in a traditional sash Bay Window to create a more symmetrical appearance.