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Five People You Need To Know In The Secondary Glazing Sash Windows Industry
Secondary Glazing For Sash Windows

Many homeowners are unable add new double glazing to their homes due to financial limitations or because they reside in listed buildings that prohibit any modifications to the exterior.

Secondary glazing is a fantastic alternative for sash window and can be installed in a variety of ways.

It is made up of an additional pane of glass within the window frame, which blocks cold air from entering your home, while offering insulation and noise reduction.

Fixed Inserts

There are many different types of secondary glazing available for Sash windows. Each style has distinct advantages including increased security and less condensation. Which is the best option for you?

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

It's not always feasible to install double-glazed windows particularly if your house is a listed property or you are governed by strict planning regulations that dictate what can and can't be done with your exterior.


In these situations secondary glazing is an excellent alternative that can be put in easily. It's also a popular option for people looking to update their old home without the need to tear down the original windows with sash and replace them with new ones.

There are a number of different systems available for secondary glazing sash windows, each one of can be customized to fit the frame you have. The proprietary systems typically feature painted aluminium frames that are designed to fit within the depth of a staff bead an existing sash window meaning that shutters and sills are still able to be used.

They can be fitted with a variety of installation methods, like glazing clips or Velcro. These are more appealing than screw-fixed ones and are ideally suited to windows that do not need to be opened often. You can also opt for a fixed lift-out unit that can be easily lifted out and reinstalled to open your windows.

Horizontal Sliders

Horizontal Sliders offer excellent thermal insulation and are the most sought-after option for enhancing existing sash windows. They are also discrete and suitable for older homes, conservation areas & listed property. They can be installed with the need for external access since they operate from inside.

They are easy to operate using a hand, and can be open wide or left partially open for ventilation. They are effective at keeping out draughts, and also block harmful UV light. In the summer they can be utilized with a flyscreen in order to keep insects out and mosquitoes.

Our Trackglaze horizontal sliding system offers all the benefits of modern double glazing to your original Sash windows. sash window locks repair hammersmith Repair My Windows And Doors is comprised of PVC double sliding track on all four sides of the cavity and a simple brush seal around each sheet of glass and a finger pull angle handle to function as a hand, reducing bowing. It comes in kits of 1m or 2m of track and angle that can be put together to create bigger spans.

The acoustic benefits of secondary glazing are significant and can dramatically reduce noise from outside, especially road, rail & airport traffic. The use of laminated glass or toughened glasses enhances the acoustic performance. Secondary glazing is a standard feature that can reduce outside noise by 52dB(Rw) and specialist glass like Stadip Silence Laminated Acoustic Glass can provide even greater levels of acoustic performance.

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

Vertical Sliders

Secondary glazing is an affordable option that is usually easier to manage than full window replacement. It is also suitable for Listed Buildings & Conservation Areas. It's a great option for upgrading traditional sash windows in Suffolk & Essex with modern insulation benefits while keeping the character of older homes.

Vertical Sliders were designed to be used in sash window applications where regular hinged panels aren't suitable. They come with two secondary sashes which are secured to one sash over the other, within an outer frame and are supported by strong spring balances that allow for effortless movement. The system can be put on the inside of an existing window to ensure greater thermal efficiency, or it can be fitted with a space between the glass and the frame to ensure the best acoustic performance.

They can be fitted with a variety of stops and handles to accommodate the preferences of the homeowner, propping open either the top or bottom pane to let in air, or they can be fixed in a closed position for added security. They can also be fitted with an insulation bristle to stop draughts.

'Choices' Imagine vertical slider secondary glazing comes with all the timber-like details you'd expect from an antique window treatment. It's also available in a variety of colors to match your existing sash. It's difficult to differentiate from the original sash window, with features like sash horns & traditional butt joints included in the design. It is available in various sizes and can be fitted with glass up to 6.8mm to add insulation to loss of heat. The tilt-in option allows the individual sashes of the window to be hinged backwards to make it easier for cleaning.

Hinged Casement

Our single-pane secondary glazing can be positioned on sash windows in any style, including traditional box sash and casement. The hinged units we offer are made with secure multi-point locking and are available 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 reduce heat loss. Hinged windows can be side-hung or top-hung and can be double-glazed. Double-glazed windows offer enhanced acoustic performances and are available in 43dB (for 47dB), 51dB (for 51dB) or 47dB (for 49dB).

Unlike horizontal sash windows, which have movable sashes that slide horizontally within the frame, casement windows can be opened outwards and catch breezes from various angles. They can be opened both from the top and bottom for controlled ventilation. This is why they can improve airflow and offer an effective alternative to traditional windows made of sash.

They are often utilized in modern homes as they have small "sightlines" and unobstructed views, but can also be used in listed properties due to the fact that they don't require mullions or transoms. They can also be utilized in places that are difficult to reach since they can be opened by turning the handle.

The primary drawback to this kind of window is that it can block off large openings and limit the use of certain window treatments. They are difficult to clean as they open outwards. They may also require regular maintenance and care.

Lift Out Windows

Secondary glazing can be installed using a variety ways and the cost will differ depending on the type, thickness, and materials you choose for your panes and frame. Upvc frames are the most expensive followed by aluminium, and then wooden frames. Specialised glass, along with any extra features such as security or sound reduction could also raise prices.

Another factor that will influence the cost is the complexity of the installation. The more complicated the project is, the more time and labor-intensive it will be. This is especially applicable to older properties with more intricate sash window designs.

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 an accurate idea of what the costs might be.

Generally speaking, secondary glazing will have little impact on the overall look of your home. Modern FINEO double-glazing features thin and discrete frame lines. This allows you to improve thermal efficiency without sacrificing aesthetics.

A popular choice of secondary glazing is horizontal sliding, which provides easy access to existing sash windows to clean or ventilation. These windows also come with a tilt feature, which is activated by opening the catch and raising your secondary glazing panel vertically to a predetermined level. This is a great option for windows that aren't opened often and is a great way to facilitate access for air conditioning in bay windows. You can also use them to open the middle sash of a traditional sash Bay Window to create a symmetrical appearance.

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