● Windows / Sliding Sash Windows
Sliding Sash Windows
Installing Sliding Sash windows is the perfect way to add a traditional charm to any home. Contact us to get to get a quote.
Get a QuoteIndicative price · From £1,150 per window supplied & fitted · Typically 5–7 weeks from survey to fit
● Overview
Sliding sash windows are the authentic choice for Georgian, Victorian and Edwardian homes across Essex. Our modern uPVC sliding sash systems replicate the look of traditional timber sashes — deep bottom rails, slim astragal bars, run-through horns — while delivering A+ thermal performance, smooth spring-balanced operation and the security of multi-point locking. No rattles, no draughts, no painting.
Specification
- Frame material
- uPVC (timber-effect woodgrain available)
- Energy rating
- A+ as standard
- U-value
- From 1.3 W/m²K (whole window)
- Operation
- Spring balance system, tilt-in for cleaning
- Glazing
- 28mm argon-filled, low-e, warm-edge spacer bars
- Heritage detail
- Deep bottom rail, run-through horns, astragal or true Georgian bars
- Security
- Multi-point locking, restrictors, key-locking sash stops
- Colours
- White, cream, anthracite, black, Irish oak, rosewood, chartwell green
- Guarantee
- 10-year insurance-backed
Sliding Sash Windows
Discover our range of Sliding Sash windows for your Essex home.
Installing Sliding Sash windows is the perfect way to add a traditional charm to any home. With a sash that moves vertically rather than opening outward, this style was the norm for the original wooden windows of the 19th century.
What are Sliding Sash windows?
Sliding Sash windows were common in Georgian and Victorian homes. They have a moveable panel that makes it easy to control how much air comes into the home. With our Sliding Sash windows, you can keep your home’s original look. Balances that have been stretched out make them easy to use and it is possible to turn in either sash to make the cleaning of the window easier. Hidden spring balances in the frame make it easy for adjustments and eliminate the need for cords. With traditional details like an oval frame and classic sash horns, the windows keep their original look and can be used in conservation areas.
How can Sliding Sash windows be customised?
Installing Sliding Sash windows is the perfect way to add a traditional charm to any home. With a sash that moves vertically rather than opening outward, this style was the norm for the original wooden windows of the 19th century. You will have a range of colours and materials to choose from and your new Sliding Sash windows will be seamlessly integrated into your home.
Are Sliding Sash windows energy efficient?
Sliding Sash windows allow you to control how much air flows around your home without needing to fully open the window. This is the perfect solution during colder months. During the winter season, sliding sash windows keep the cold air at bay whilst ventilating your home to the standard you’d expect. With insulating frames, energy efficient glass and a choice of materials, your windows will keep your warmth in and your bills low. Draughts will become a problem of the past, and you can say goodbye to hearing the wind rattling through.
How can I get a quote for your Sliding Sash windows?
To discuss your requirements for Sliding Sash windows, please don’t hesitate to contact us, we are always happy to assist.
● Frequently asked
Sliding Sash Windows — questions answered
How much do sliding sash windows cost?
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uPVC sliding sash windows typically cost from £1,150 per window supplied and fitted in Essex. A typical Victorian terrace (6–8 sash windows) usually falls between £7,500 and £11,500 depending on size, colour and heritage detailing. Woodgrain finishes and true Georgian bars add 10–20%. Every quote is itemised and includes survey, fitting and FENSA certification.
Are uPVC sliding sash windows allowed in conservation areas?
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It depends on the local authority and property. Many Essex councils now approve high-spec uPVC sliding sashes with woodgrain finish and traditional detailing (deep bottom rails, run-through horns, astragal bars), particularly where windows are not the principal façade. Listed buildings almost always require timber. We'll advise during the survey and can support the planning submission.
Do modern sliding sash windows still rattle and draught?
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No. Original Victorian timber sashes rattled because of worn cords, shrunken timber and gaps in the boxing. Our modern uPVC sashes use precision-engineered spring balances (not cords or weights), multi-chambered frames with continuous gasket seals, and tight tolerances throughout. The result: silent, smooth operation with zero draughts.
Can sliding sash windows tilt in for cleaning?
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Yes — both the upper and lower sashes tilt inwards on demand, letting you clean the external glass safely from inside. This is one of the biggest practical improvements over original timber sashes and a particular benefit for first-floor and upper bay windows.
What's the difference between sliding sash and flush sash windows?
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Sliding sash windows slide vertically — one sash up, the other down — like original Victorian and Georgian windows. Flush sash windows are side-hung casements that open outwards on hinges but sit flush within the frame to mimic traditional joinery. Sliding sash is more historically authentic; flush sash is cheaper, easier to clean and more versatile.
Are sliding sash windows secure?
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Yes. Modern sliding sashes include multi-point locking on the meeting rail, key-locking sash stops that let you ventilate securely, and internally-beaded glazing. PAS 24 certified options are available for insurance requirements. The locking mechanism is fundamentally different and far more secure than the simple latches on original timber sashes.
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