● Windows / Flush Sash Windows
Flush Sash Windows
Discover our range of Flush Sash Windows, they are made from the best uPVC but are carefully made to look like real wood. Contact us today for a quote.
Get a QuoteIndicative price · From £650 per window supplied & fitted · Typically 4–6 weeks from survey to fit
● Overview
Flush sash windows are the smartest-looking choice for period homes and characterful new-builds across Essex. Unlike standard casements, the opening sash sits perfectly flush within the frame — replicating the clean lines of traditional timber joinery while delivering the thermal performance, security and zero-maintenance of modern uPVC. We install A+ rated flush sash systems with whole-window U-values from 1.2 W/m²K.
Specification
- Frame material
- uPVC (timber-effect grain available)
- Energy rating
- A+ as standard
- U-value
- From 1.2 W/m²K (whole window)
- Chambers
- 7-chamber profile for maximum insulation
- Glazing
- 28mm argon-filled, low-e, warm-edge spacer bars
- Security
- Multi-point shootbolt locking, internal beading, restrictors
- Colours
- White, cream, anthracite, black, Irish oak, rosewood, chartwell green
- Hardware
- Monkey-tail handles in chrome, brass, black for heritage look
- Heritage detail
- Astragal bars, decorative cills, true Georgian or mock sash bar options
- Guarantee
- 10-year insurance-backed
Flush Sash Windows
Discover our range of Flush Sash windows for your Essex home.
People say that it’s often the small things that matter the most. No matter how big or small your home improvement project is, each window is carefully made to meet your specific needs. Modern Flush Sash windows combine the look of traditional wooden windows with the high performance and low maintenance of modern uPVC. Homes in Essex can choose from a variety of Flush Sash window styles.
What are Flush Sash windows?
Flush Sash windows are carefully made to look like real wood. Instead of slightly overlapping the window frame, they fit snugly into the window frame for a smooth finish. Made from the best uPVC, these windows have the best energy efficiency, weatherproofing, and ease of maintenance. They are known for creating the traditional look without the traditional flaws. Even the most discerning eye won’t be able to tell the difference!
How can Flush Sash windows be customised?
Choosing Flush Sash windows will add instant character to your home. You can choose from different colours and materials to ensure your new Flush Sash windows will fit right into your home.
Are Flush Sash windows energy efficient?
The purpose of Flush Sash windows is to improve your home’s energy efficiency and kerb appeal by ten times. As a standard, our flush windows have an ‘A+’ rating and are some of the most energy efficient on the market. With modern multi-point shoot bolt security locks, stylish lockable handles, and a convenient lockable night vent, exquisite Flush Sash windows solve the security problems that come with real wood; dry rot, pest infestation, and warping.
How can I get a quote for your Flush Sash windows?
If you would like a quote for our Flush windows, please contact our team. We can set up a consultation so that we can give you a quote.
● Frequently asked
Flush Sash Windows — questions answered
How much do flush sash windows cost?
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Flush sash uPVC windows typically cost from £650 per window supplied and fitted in Essex. A standard 3-bed semi (around 8–10 windows) usually falls between £6,500 and £9,500 depending on size, glass spec and colour. Heritage colour finishes (anthracite, chartwell green, woodgrain) typically add 10–15% to the standard white price. Every quote is itemised and includes survey, fitting and FENSA certification.
What's the difference between flush sash and standard casement windows?
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On a standard casement window the opening sash sits proud of the outer frame — you can see and feel the lip. On a flush sash, the opening sash sits perfectly flush within the frame, exactly like a traditional timber joinery window. The thermal performance and security are identical; the difference is purely aesthetic. Flush sash looks far more authentic on period homes and new-builds trying to evoke a traditional look.
Are flush sash windows suitable for conservation areas?
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In many cases, yes. Local planning officers across Essex have become much more accepting of high-quality flush sash uPVC over the last few years, particularly with a woodgrain finish and traditional hardware. We've had heritage uPVC flush sash approved in conservation areas across Colchester, Maldon, Saffron Walden and parts of Chelmsford. We'll advise during the survey and can help with the planning submission if needed.
How energy efficient are flush sash windows?
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Our flush sash windows are A+ rated as standard, with whole-window U-values from 1.2 W/m²K. The 7-chamber frame profile, 28mm argon-filled double glazing with low-emissivity coatings, and warm-edge spacer bars all work together to dramatically reduce heat loss. Most homeowners notice an immediate reduction in draughts and a more even temperature throughout the house.
Do flush sash windows come with astragal or Georgian bars?
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Yes — we offer both stick-on (most common, easier to clean) and through-glass true Georgian bars. Astragal bars give the authentic period sash window look without the maintenance, draughts or thermal compromise of original timber. They're available in any of our standard colours to match the frames.
How are flush sash windows different from sliding sash windows?
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Sliding sash windows slide vertically (one sash up, the other down), like the original Victorian-era windows. Flush sash windows are side-hung casements that open outwards on hinges — they just look flush, like a traditional joinery window. Sliding sash is the more historically accurate choice for Georgian and Victorian properties; flush sash is more versatile, easier to clean, and significantly cheaper.
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