How Secondary Glazing Can Improve Your Sash Window Insulation
If you'd like the advantages of double glazing but are unable to replace the window you have in place, or don't want to do it, secondary glazing may be a viable option.
It is a cost-effective option that adds insulation and reduces draughts, without changing the appearance of the house. It can be used in cases where the property deeds state that the original features must be kept.
Improved insulation
If your home is older and you have sash windows, it can be difficult to make them as well-insulated as you'd like. This is often due to the limitations of planning or the difficulty of altering windows that are traditional without the risk of losing its unique charm. Secondary glazing can be an excellent way to increase the insulation of your home. This is the process of incorporating a second pane of glass into the frame. This provides an extra layer of insulation to your home and lower the cost of energy.
The glass that is added to the existing sash window frame serves as an insulator that traps air and keeps heat in your property. The second pane also blocks noise from the outside. This is especially beneficial when you live in an area that can be noisy, as it can help maintain the peace and tranquility inside your home.
However, it's important to keep in mind that while secondary glazing can greatly increase the insulation of your home, it will not be as efficient as installing new double-glazing windows. The gap between the two panes will not provide the same thermal efficiency as double-glazed windows.
We offer a range of bespoke secondary glazing solutions that are tailored to suit your sash window's original design and the specific needs of your property. We can create secondary glass that opens up to the original sash windows, allowing you to benefit from increased efficiency of energy without having to sacrifice your beautiful historic windows.
This solution is popular with houses that are listed and in conservation areas. It allows you to benefit from improved energy efficiency while not having to compromise the look and feel your home. We can achieve a superior degree of insulation by using new methods like double-glazing with vacuum, while permitting windows to be open.
We also offer a range of decorative finishes to match your existing windows and enhance the appearance of your home. This includes blinds, shutters and curtains. All of them can enhance the thermal performance of your home by acting as an additional barrier to stop cold air from getting in.

Reduced upvc sash are a vital component of a lot of homes. However they can be drafty and noisy. Installing secondary glazing is one method to increase the insulation of sash windows. This is a cost-effective solution that can boost thermal efficiency and decrease outside noise. It is also a great option for older homes since it preserves the original design and protects the structure from intrusion.
Sliding secondary glass is available in a variety of sizes and styles, so it's easy to find the perfect fit for your home. Fixed inserts are aluminium frame sections that can be fitted to the inside of the windows you have already installed. They can be erected permanently or semi-permanently, depending on your needs. They're an easy DIY option for homeowners who want to make their own improvements.
There are a variety of glass to choose from such as laminated acoustic, laminated acoustic, and toughened safety glasses. Acoustic glass can be used in secondary glazing to reduce outside noise. It can also improve the privacy of your home. This is especially crucial if you live close to a busy road or in a noisy areas.
Secondary glazing can cut down on the amount of noise pollution and allow you to unwind in your home. It is also a good option if you have pets or children, since it will reduce the amount of noise that enters into your home from outside. It can also help prevent external noises from disrupting your sleep.
If you live in a historic or listed building, it may not be possible to install a double-glazed window without changing the original design of your home. You can improve the efficiency of your home by adding a second glass to your sash window. It's a cost-effective and durable option that can offer numerous benefits, including less noise, increased security, and increased heat retention.
The best thing about secondary glazing is that it can be installed within your existing sash windows, allowing you to keep the charm and charm of your home while increasing its energy efficiency and insulation. It's also less expensive than replacing every windows with new sash windows.
New aesthetics and improved design
Secondary glazing is a great alternative to replace sash windows. It adds a new glass pane inside the existing frame. This creates a barrier that reduces heat loss and increases the energy efficiency of your house. It also reduces noise from outside, creating an environment that is peaceful. It's also a cost-effective method to improve your home's insulation without altering its appearance.
Addition of a second glass layer to your existing sash windows can provide excellent insulation, reducing the loss of heat by as much as 60 percent. It will keep your home warmer for longer and save you money in the long term. Secondary glazing can also reduce condensation and black mould, as it prevents moisture from reaching wooden window frames.
There are many different kinds of secondary glazing systems, that can be used with a variety of sash windows. For instance, some systems have a sash that can be closed and opened as well as fixed or open only for ventilation. There are also options that don't require the use of mullions or transoms, making them ideal for listed buildings and heritage homes. There are a variety of colors and finishes available so you can pick the style that is perfect for your home.
One of the biggest benefits of secondary glazing is that it doesn't alter the appearance of your sash windows, so it's ideal for homes with a historic or period style where replacements that are like-for-like aren't an alternative. It's also a popular option for people who reside in a conservation zone or in a listed building in which there are restrictions on what can be done to the house's windows.
The thin sightlines of secondary glazing can also be a benefit as they don't obstruct the view of your original Sash windows. This makes it a great option for homeowners looking to upgrade their sash windows in order to improve energy efficiency and reduce noise pollution but don't want to replace them altogether.
Reduced condensation
Condensation is a common problem with sash windows. It occurs when the warm air inside the property meets the cold surface of the window, causing water droplets to form. This can cause damp and mould issues in the house. Secondary glazing can help to alleviate this issue by creating an extra layer of insulation that blocks the transfer of heat between the window and the room. This means that you will be in a position to keep your home warmer for longer and consume less energy, thereby saving money on heating costs.
The addition of an additional pane of glass can also improve the acoustic quality of windows made of sash. It decouples the movement of the sash from the frame, reducing resonance between the two, thereby restricting sound leakage. Further improvements in acoustics can be achieved by using the thicker or acoustic laminated glass in the secondary pane.
Secondary glazing for windows in sash is not double-glazed and does not require removal of the old window. Instead, it simply adds a second pane of glass to the existing window frame. This makes it a good option for listed buildings and heritage buildings in which it can be difficult or impossible to install new double-glazed windows.
Sash window secondary glazing is available in a range of different styles, including vertical sliders and hinged casements. These are the most popular choices for listed buildings, as they can be placed without mulliations or transoms. This preserves the original appearance of the window. Both styles come with a lift-out facility to simplify cleaning and maintenance.
Additionally, fixed secondary glass can be installed for homes which do not require regular ventilation or where it could be risky to open the original sash windows. These can be fitted with a stay to ensure they remain in a minimum level, eliminating the need to open manually them. In such instances, it is best to keep track of the humidity levels using a humidistat. Then, you can take steps to reduce the moisture levels within the building. This could include improving the ventilation, installing a dehumidifier and addressing any leaks around the building.