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Secondary Glazing For Sash Windows

Many homeowners are not able to install new sash windows double glazing on their homes, either because of financial constraints or because they reside in listed buildings that prohibit any exterior changes.

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

It's an additional pane of glass inside the existing window frame which stops cold air from entering your home, while offering insulation and noise reduction.

Fixed Inserts

If you're thinking about secondary glazing for your sash windows, there are a variety of styles to pick from. Each style offers distinct advantages that range from increased security to less condensation. Which one is best for you?

The fundamental idea behind secondary glazing is to fit an additional glass pane within the frame of your existing window. This adds an additional layer of insulation and noiseproofing to your home, improving its energy efficiency.

However it's not always feasible to add new sash windows double-glazed windows for your home particularly if you live in a listed building or are subject to strict regulations regarding planning that dictate what can and can't be done to your exterior.

In these situations, secondary glazing is a fantastic alternative that can be installed with ease. It's also a popular choice for people looking to update their home without having to tear down the original sash windows and replace them with contemporary ones.

There are a number of different systems available for secondary glazing sash windows, each one of that can be adapted to fit the frame you have. Proprietary systems are usually constructed of painted aluminium frames that fit into the existing bead depth on windows with sash. This lets shutters and sills remain.

They can be equipped with different installation methods such as glazing clips or Velcro. These types of units look more attractive than screw-fixed ones and are ideal for windows that do not require to be opened frequently. You can also opt for an adjustable lift-out unit, which can be lifted out and put back in place with ease, allowing your windows to be opened.

Horizontal Sliders

Horizontal Sliders provide excellent thermal insulation and are the most well-known solution to improve the performance of existing sash windows. They are also very discreet and suitable for older buildings, conservation areas & listed properties. They can be fitted in the majority of cases without the need for external access because they are operated from inside.

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

Our Trackglaze horizontal sliding system provides all the advantages of modern double glazing to your original sash windows. It comprises of PVC double sliding tracks on all four sides of the cavity with an easy bristle seal around each glass sheet and finger pull angle handles to serve as handles and lessen 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 advantages of secondary glazing are very important and can improve noise reduction from outside especially railway, road and airport traffic. The inclusion of laminated glass or toughened glasses improves the acoustic performance. Standard secondary glazing reduces outside noise to 52dB (Rw) and specialist glass, like Stadip Silence Laminated Acoustic Glass can deliver even more impressive levels of acoustic efficiency.

It can increase the energy efficiency of your home by keeping it warmer for longer. This will reduce the need for central heating. It's much less expensive than replacing your sash windows and is installed almost everywhere without the need to remove the existing window or door frame.

Vertical Sliders

Secondary glazing is a cost effective alternative that is usually more manageable than a complete window replacement sash windows cost and is perfectly suitable for Listed Buildings & Conservation Areas. It's a great way to upgrade traditional sash Windows in Suffolk & Essex while retaining their distinctive character.

Vertical Sliders are specially designed for sash windows where regular hinged panels aren't suitable. They come with two secondary sashes that are secured to one sash above the other, inside an outer frame. They are supported by strong spring balances to allow for easy movement. The system can be purchased as a 'face-fixed' (installed to the inside of the existing window) for increased thermal performance or a 'reveal-fixed version, which has an air cavity for glass within the window's original reveal, for optimal sound quality.

You can pick from a range of stop-strips and handles that meet your needs. They can be positioned in the closed position for extra security or propped open to allow ventilation on the top or bottom glass. They can be equipped with an insulation bristle to block draughts.

'Choices' Imagine vertical slider secondary glazing comes with the same authentic wood detailing you'd expect from a period window treatment and comes in a variety of colors to match your existing sash. It's difficult to tell apart from the original sash window with details like the sash's horns and traditional butt joints being incorporated into the design. It's available in a wide variety of sizes and can accept glass up to 6.8mm to add insulation to prevent loss of heat. The tilt-in feature allows the sashes of each window to be hinged inwards on safety stays for easier cleaning.

Hinged Casement

Our single-pane hinged secondary glass can be fitted to windows made of sash in any style including traditional and casement sash. Our hinged units are constructed with a secure multi-point locking system and can be supplied with keys and a handle for the lock. This combination ensures the glazed panel is locked securely in place and pulls tight to the outer frame, creating a seal to minimize heat loss. Hinged windows can be top-hung or side-hung, and they can also be double-glazed. Double-glazed windows provide better sound insulation and are available in 43dB (for 47dB) or 51dB (for 51dB) or 47dB (for 49dB).

Casement windows are able to open outwards and catch breezes at various angles. This is different from a the horizontal sash window locks window with movable sashes in the frame that move horizontally. They can be opened both from the top and bottom to allow controlled ventilation. This is why they can increase airflow and offer an effective alternative to traditional flush sash windows windows.

They are used in modern homes due to their slim "sightlines" that allow for clear views, however they can also be installed in listed homes since they do not require mullions and transoms. They're also a great choice for hard-to-reach areas since they can be opened by the turn of a handle.

The main drawback of this kind of window is that it can block large openings and may restrict the use of certain window treatments. They are difficult to clean since they swing outward. They also may require regular maintenance and service.

Lift Out Windows

Secondary glazing can be installed with a variety of methods and the cost will differ depending on the type, thickness, and materials you choose for your frames and panes. Upvc frames are the most expensive, followed by aluminium and wooden frames. Specialized glass can also add to the price and include additional features like security or sound reduction.

The complexity of the installation will also influence the cost. The more complicated the project is, the more time and labour it will take. This is also applicable to older properties that have more complex sash window designs.

Analyzing the condition of existing windows is a good place to begin. You can get an accurate estimate of the cost by having them checked by professionals.

In general secondary glazing has little effect on the look of your home. Modern FINEO double-glazing has thin and subtle frame lines. This lets you improve thermal efficiency without sacrificing aesthetics.

A popular choice of secondary glazing is horizontal sliding, which provides easy access to windows that are already sash for cleaning or ventilation. These windows also come with a tilt function, that can be activated by opening the catch and raising your secondary glazing panel vertically to a specified degree. This is perfect for windows that don't get opened often. It can be used to provide air conditioning access in bay windows. You can also use them to open the middle sash of a traditional Bay Window to create a more symmetrical appearance.