How Secondary Glazing Can Improve Your Sash Window Insulation
If you're interested in the benefits of double-glazing but are unable to replace the window you have in place, or don't want to do this, secondary glazing might be a suitable option.
It is an affordable option that can be used to improve insulation and reduce draughts without altering the original look. It is a good option in situations where the property deeds specify that the original features should be preserved.
Improved insulation

If your home is older and you have windows made of sash, it might be difficult to make them as insulated as you would like. This is usually due to planning restrictions or the difficulty of modifying windows that are traditional without compromising its beauty. Secondary glazing can be an excellent way to increase the insulation of your home. This involves adding a second piece of glass to the frame, providing an extra layer of insulation to keep your home warm for longer, and also reduce energy costs.
The additional glass pane that is added to the windows you already have acts as an insulation, capturing heat and air in your home. In addition the second pane also helps to reduce the noise outside. This is particularly beneficial if you reside in an area where noise can be a problem. It will help keep your home quiet.
But, it's important to remember that even though secondary glazing can significantly increase the insulation of your home, it will not be as efficient as installing new double-glazing windows. The gap between the two panes does not provide the same level of thermal efficiency as a double-glazed window.
We offer a variety of secondary glazing options that are customized to your windows in sash and the needs of your home. We can even design secondary glazing that can be opened in conjunction with the original sash window, allowing you to enjoy the benefits of greater insulation without having to give up your beautiful windows from the past.
This type of solution is popular among homes and listed buildings in conservation areas. It allows you to enjoy improved energy efficiency without compromising the appearance and feel of your home. Utilizing innovative methods like vacuum double glazing allows us to achieve the highest level of insulation while still permitting the sash windows to be opened.
We also provide a range of decorative finishes that complement your existing windows with sash and enhance the overall aesthetic of your home. This includes shutters, blinds, and curtains. They all can improve the thermal efficiency of a home by acting as an additional barrier to prevent cold air from getting in.
Reduced noise
Sash windows are a crucial element of a lot of homes. They can be noisy and drafty. One method to increase the insulation of windows in sash is to install secondary glazing. This is a low-cost solution that can improve the thermal efficiency of your home and also reduce outside noise. It's also a great option for older homes since it keeps their original design and protects the structure from intrusion.
Secondary sliding glass is available in a variety of styles and sizes and styles, making it easy to find the perfect design for your home. Fixed inserts are aluminum frames that can be put in your existing sash window. These can be fixed permanently or semi-permanently according to your requirements. They're a straightforward DIY solution for homeowners looking to make their own improvements.
There are many types of glass that are available such as laminated acoustic, laminated acoustic, and toughened safety glasses. Acoustic glass can be used for secondary glazing to reduce outside noise. It can also increase the privacy of your home. This is especially important if you live next to a busy road or other loud area.
Secondary glazing can cut down on the amount of noise pollution and allow you to relax in your home. This is a good idea if you own pets or children, as it will minimize the amount of noise that enters your home. It can also prevent external noises from disrupting your sleep cycle.
If you live in an historic or listed property it might be difficult to install new double-glazed windows without changing the design of your house. However, you can increase the energy efficiency of your sash windows by incorporating secondary glazing. It's a cost-effective and durable option that can offer many benefits, including reduced noise, enhanced security, and improved heat retention.
The best part about secondary glazing is it can be incorporated in your existing sash windows and preserve the beauty and character while increasing the insulation and energy efficiency. It's also less expensive than replacing your sash windows with brand new ones.
Enhance the appearance of your home
Secondary glazing is an excellent alternative to replacing sash windows. It is a new glass pane inside the existing frame. This creates an insulating layer that dramatically reduces heat loss and increases energy efficiency throughout the house. It also helps to reduce noise from outside, creating a peaceful and quiet space. It's also a more cost-effective way to improve the insulation of your home without changing the original appearance.
The addition of a second glass layer to the sash windows you already have can provide excellent insulation, reducing heat losses by up to 60 percent. It will keep your home warmer for longer and save you money over the long run. Secondary glazing can also reduce black mould and condensation, since it stops moisture from getting into the wooden window frames.
There are a myriad of secondary glazing options that work for different sash window types. For instance, some systems contain a sash which can be shut and opened as well as fixed or only open for ventilation. There are options that don't require a transom or mullion, which makes them ideal for listed and heritage properties. There are a myriad of colours and finishes available to ensure you find a style that suits your home.
One of the greatest advantages of secondary glazing is that it doesn't alter the appearance of your sash windows, which is why it's ideal for homes with a historic or period style where replacements that are like-for-like aren't an option. It's a popular option for those who reside in conservation areas or listed structures where the windows on their property are restricted.
The thin sightlines of secondary glazing are also a benefit, because they don't block the view of your original sash windows. This makes it a great alternative for homeowners who wish to upgrade their sash windows in order to improve efficiency in energy use and reduce noise pollution, but aren't looking to replace them completely.
Reduced condensation
Condensation is a potential issue when using sash windows. It occurs when warm air inside the home faces the cold exterior of the window, which causes droplets of water to form. This can lead to damp and mould problems in the house. Secondary glazing can help alleviate this issue by creating an extra layer of insulation that prevents the transfer of heat between the original window and the room. This allows you to keep your house warmer for longer while using less energy, and reducing heating bills.
A second pane of glass can also enhance the acoustic properties of a sash window. It decouples movement of the frame and sash, reducing the resonance between the two. This reduces the leakage of sound. replace window sashes can be made more acoustically efficient by using acoustic-laminated glass or a thicker glass.
Unlike double glazing, sash window secondary glazing does not require the removal of the current window. It simply adds a second pane of glass to the frame. This makes it an excellent option for listed homes and historic buildings in which it can be difficult or impossible to install new double-glazed windows.
Secondary glazing for sash windows is available in many different styles. These include vertical sliders as well as hinged cases. These are the most popular choices for listed buildings, as they can be installed without mulliations or transoms. This maintains the original look of the window. Both styles are available with a lift-out facility to make cleaning and maintenance easier.
Additionally, fixed secondary glass can be installed for homes which do not require regular ventilation or where it may be dangerous to open the sash windows. They can be affixed to a stay that holds them in a minimum position set, removing the need to manually operate the windows manually. In such situations, it is best to check the humidity levels with the aid of a hygrometer. Then, take steps to reduce the moisture levels in the property. This could include improving ventilation, installing a dehumidifier and addressing any leaks that may be present around the building.