Secondary Glazing Sash Window The Process Isn't As Hard As You Think
How Secondary Glazing Can Improve Your Sash Window Insulation
If you're interested in the advantages of double glazing but aren't able to replace the window you have in place, or don't want to do it, secondary glazing may be a viable option.
It's a cost-effective option that improves insulation and reduces draughts, without changing the original appearance. It can be used in situations where property deeds stipulate that original features must be kept.
Insulation that is improved
If your house is older and has windows with sash, it may be difficult to get them as well-insulated as you would like. This is often due to planning constraints or the difficulty of changing an old-fashioned window without risking losing its unique charm. Secondary glazing is an ideal way to boost the insulation of your home. This involves adding a second pane of glass to the existing frame, adding an additional layer of insulation to keep your property warmer for longer, and also reduce energy costs.
The additional pane of glass that is incorporated into the frame of the window acts as an insulator, trapping air and keeping warm in your home. The second pane also helps to reduce noise from the outside. This is particularly beneficial if you reside in an area where noise might be an issue. It helps to keep your home peaceful.
It is important to note that, while secondary glazing can improve the insulation of your home, it won't be as effective as double-glazed windows. This is because the space created between the two panes of glass does not provide as much thermal efficiency as a double-glazed window.

For this reason, we provide a variety of bespoke secondary glazing options that are specifically designed to fit the original sash window as well as the specific needs of your property. We can even design secondary glazing that can be opened alongside the original sash window, allowing you to enjoy the benefits of increased insulation without having to let go of your beautiful heritage windows.
This type of solution is especially preferred in listed buildings and homes within conservation areas because it lets you enjoy the benefits of increased energy efficiency without having to compromise on the appearance and feel of your home. Using innovative techniques like vacuum double glazing that can provide a very high degree of insulation while permitting the sash windows to be opened.
We can also offer various decorative finishes that complement your existing windows with sash and enhance the overall appearance of your home. This includes shutters, blinds, and curtains, all of which can also increase the thermal performance of your home by acting as another barrier to prevent cold air from getting in.
Reduced noise
Sash windows are a vital component of many homes. They can be noisy and draughty. One method to increase the insulation of sash windows is by installing secondary glazing. This is a cost-effective option that can boost the efficiency of your home and reduce outside noise. It's also a fantastic solution for older homes as it preserves the original design and protects them from burglars.
There are a myriad of types and sizes of sliding secondary glazing so you can choose the right fit for your home. Fixed inserts are aluminum frame sections that can be fitted to the inside of the windows you have already installed. These can be fixed permanently or semi-permanently according to your requirements. These are an excellent DIY option for homeowners who want to make their own home improvements.
There are many types of glass to choose from, including laminated acoustic and toughened safety glasses. Utilizing acoustic glass as a secondary glazing helps reduce outside noise and can improve the privacy within your home. This is especially crucial if you live near a busy highway, or another noisy area.
double glazed sash windows glazing can help reduce the noise and make it easier to relax in your home. This is a good idea for pet owners or children, as it will lower the amount of noise entering your home. In addition, it helps to prevent external noises from disrupting your sleep cycle.
If you live in an historic or listed house, it may be impossible to install new double-glazed windows without altering the original design of your home. You can boost your efficiency of your home by adding a second glass to your sash window. It's a cost-effective and long-lasting solution that offers numerous benefits, including reduced noise, enhanced security, and improved heat retention.
The greatest benefit of secondary glazing is it can be fitted into your existing sash window which allows you to keep the character and charm while increasing your home's insulation and energy efficiency. It is also cheaper than replacing all your windows with new sash windows.
Improved aesthetics
An excellent option to replace your sash windows with new double glazing, secondary glazing can be added to create a second pane of glass within the frame. This creates a barrier which reduces heat loss and improves the efficiency of your home's energy usage. It also helps to reduce outside noise creating a calm and peaceful environment. It's also a much more economical way to increase the insulation of your home, without changing the original appearance.
The addition of a second glass layer to the sash windows you already have will provide excellent insulation, and can reduce the loss of heat by up to 60%. This means that your home will remain warmer for longer, and will save you money on your energy bills in the long run. It also helps reduce the risk of black mould and condensation as the secondary glass prevents moisture from getting into the window frames made of wood.
There are a number of different kinds of secondary glazing systems, which can be used with a variety of sash windows. For instance, some systems include a sash that can be shut and opened and closed, while others are fixed or open only to allow ventilation. There are also options that don't require a mullion or transom, which makes them ideal for listed and historic properties. There are a variety of colors and finishes to pick from, so you can choose the right style to suit your home.
One of the main benefits of secondary glazing is that it doesn't change the appearance of the windows in your sash, so it's ideal for period or historic homes where like-for-like replacements aren't an option. It's a popular option for those who reside in conservation areas or listed buildings where the windows on their property aren't permitted.
The slim sightlines of secondary glazing can also be a benefit as they don't obstruct the view of the original sash windows. This is a great choice for homeowners who are seeking to upgrade their existing windows with sash to reduce noise pollution and increase energy efficiency.
Reduced condensation
Condensation can be a problem when using sash windows. It occurs when warm air from inside of the house meets the cold window's surface and causes the formation of water droplets. This can lead to damp and mould problems in the home. Secondary glazing can solve this problem by creating an additional layer of insulation that prevents heat transfer between the original window to the room. This means that you'll be in a position to keep your home warmer for longer and consume less energy, saving you money on heating costs.
The addition of an extra pane of glass also improves the acoustic quality of sash windows. It decouples movement of the frame and sash which reduces the resonance between the two. This helps to reduce sound leakage. The secondary pane can be made more acoustically efficient by using acoustic-laminated or a thicker glass.
Sash window secondary glazing is not double glazing and does not require removal of the window. It simply adds a second pane of glass to the existing frame. This makes it a great option for listed buildings as well as historic properties where it's often difficult or not practical to install new double glazed windows.
Secondary glazing for Sash windows is available in a range of styles that include vertical sliders as well as hinged casements. The latter are the most popular choice for listed buildings as they can be installed without the use of transoms or even mullions, preserving the appearance of the original window intact. Both styles are available with a lift-out option to make cleaning and maintenance easier.
For properties that don't need regular ventilation, or for those where opening the sash window could be risky A fixed secondary glazing option is available. They can be fitted with a stay to ensure they remain in a minimum height, avoiding the need to open manually them manually. In such instances, it is best to keep track of the humidity levels using an humidity hygrometer. Then, you can take steps to reduce the amount of moisture within the building. This may include enhancing the ventilation, installing a dehumidifier and addressing any leaks that may be present around the building.