Deceuninck uPVC windows and doors
Windows Etc supplies and fits four Deceuninck ranges — the Traditional 2500 stormproof casement, the sculpted Heritage 2800, and the Heritage Flush window and door. Every range carries the BSI Kitemark to BS 7412 and is reinforced with galvanised steel.
Four Deceuninck ranges, from chamfered to flush
Deceuninck makes uPVC window and door profiles from a UK base in Calne, Wiltshire. Windows Etc supplies and fits four of its ranges, each with a different frame shape: the chamfered Traditional 2500, the sculpted Heritage 2800, and the Heritage Flush window and door, where the sash sits flush with the frame.
The Traditional 2500 and Heritage 2800 are both available as casement and tilt and turn windows, and as French, residential and patio doors. Every range carries the BSI Kitemark to BS 7412 and uses galvanised steel reinforcement. Glass options include toughened and laminated, Contora, Stippolyte and Minster obscure patterns, Georgian bars and leaded designs.
Deceuninck sits alongside the other uPVC systems we fit rather than replacing them — you can compare it against Get Snug and the Residence Collection in our Colchester showroom.
Two casement profiles, one flush window and a matching flush door.
Traditional 2500
The stormproof casement, with a chamfered profile. Available as casement and tilt and turn windows and as French, residential and patio doors. Double-glazed windows reach up to an A++ energy rating, and the 2500 casement carries a noise-reduction label A at 42 dB. The profile is 100% recyclable.
Chamfered profile | up to A++
Ask about the 2500
Heritage 2800
A decorative, sculpted heritage profile with smooth contours, made for period and modern homes alike. The same window and door styles as the 2500. Double glazing reaches up to A++ — the Heritage 2800 storm casement carries a BFRC A++ label — and triple glazing is available.
Sculpted profile | 30+ colourways
Ask about the 2800
Heritage Flush window
Deceuninck calls it the Heritage 2800 Flush Casement. The sash sits flush with the frame like a traditional timber casement, with slimline frames and a traditional butt or mitred joint. Built to PAS 24 with multi-point locking as standard. Uw 1.2 double-glazed, Uw 0.90 triple-glazed, up to A++, with a noise-reduction label A at 43 dB.
PAS 24 | Uw 0.90 triple-glazed
Ask about the flush window
Heritage Flush door
Built to imitate the look of a timber door and to match the flush window, with dedicated PAS 24 hardware. Air permeability Class 4 (600 Pa), watertightness Class E1050 and wind resistance Class A3 (1200 Pa). Ud 1.3 double-glazed and Ud 1.0 triple-glazed, with a doorset energy rating of A, 30+ colourways and a low-threshold option that is Approved Document M compliant.
Doorset rating A | 30+ colourways
Ask about the flush door
A flush sash is a casement, not a sliding sash
Flush sash — sometimes called flush casement — means the opening sash sits flush with the frame, like a traditional timber casement. It opens outwards on hinges; it doesn't slide.
If you want a window that slides vertically, that is a different window altogether. We fit those too — see sliding sash windows.
The Traditional 2500 comes in 22 colourways from stock, plus a 15-colour express collection delivered in 15 working days and 7 continental colours in 14 days. The Heritage 2800 and the flush ranges offer 30 or more colourways from stock, including Agate Grey on White woodgrain, Nut Tree, Golden Oak, English Oak, Chartwell Green and Anthracite.
Heritage looks, current performance
Four ranges covering chamfered, sculpted and flush profiles, all kitemarked to BS 7412 and reinforced with galvanised steel.
Get a free quoteA genuine flush sash
On the Heritage Flush window the sash sits flush with the frame, with slimline frames and a traditional butt or mitred joint.
Up to A++
Double-glazed windows reach up to an A++ energy rating, with triple glazing available on the Heritage 2800.
PAS 24 flush ranges
The Heritage Flush window and door are built to PAS 24, with multi-point locking as standard on the window.
Recycled content
Across the Deceuninck group in 2025, 17% of PVC profiles were recycled material. The Traditional 2500 profile is 100% recyclable.
Four Deceuninck bays in our Colchester showroom
Bays 13, 14, 15 and 16 display Deceuninck frames — flush sash and tilt and turn — among the 21 window bays you can open, close and compare side by side, alongside the other uPVC, aluminium and timber systems we fit.
Where Deceuninck fits in our range
Deceuninck questions, answered.
Can't find what you're looking for? Give us a call.
01206 85 10 10Is a flush sash window a sliding sash window?
No. A flush sash — sometimes called a flush casement — has an opening sash that sits flush with the frame, like a traditional timber casement. It opens outwards on hinges; it doesn't slide. A window that slides vertically is a sliding sash, which is a different window entirely. We fit those too, on our sliding sash windows page.
What's the difference between the Traditional 2500 and the Heritage 2800?
The shape of the frame. The Traditional 2500 is the stormproof casement, with a chamfered profile. The Heritage 2800 is a decorative, sculpted profile with smooth contours, made for period and modern homes alike. Both come as casement and tilt and turn windows and as French, residential and patio doors, and both reach up to an A++ energy rating on double glazing. The 2500 offers 22 colourways from stock; the 2800 offers 30 or more, and adds triple glazing.
Will Deceuninck flush windows be allowed in a conservation area?
Deceuninck says the flush external contours of the Heritage Flush window meet the requirements of most conservation area officers. That is not a guarantee for any particular property, and it is not a decision we can make for you — always check with your planning or conservation officer before you order.
How energy efficient are Deceuninck windows?
Double-glazed windows reach up to an A++ energy rating, and the Heritage 2800 storm casement carries a BFRC A++ label. The Heritage Flush window is Uw 1.2 double-glazed and Uw 0.90 triple-glazed. The Heritage Flush door is Ud 1.3 double-glazed and Ud 1.0 triple-glazed, with a doorset energy rating of A. Triple glazing is available on the Heritage 2800.
What colours and hardware can I have?
The Traditional 2500 has 22 colourways from stock, plus a 15-colour express collection delivered in 15 working days and 7 continental colours in 14 days. The Heritage 2800 and the flush ranges offer 30 or more colourways from stock, including Agate Grey on White woodgrain, Nut Tree, Golden Oak, English Oak, Chartwell Green and Anthracite. The Heritage Flush window takes traditional ironmongery — monkey tail, teardrop and Connoisseur handles, and peg stays — in finishes including antique black, chrome, graphite, gold and bronze, with dummy peg stay, Georgian bar and night vent options.
Can I see Deceuninck in your showroom?
Yes. Four of the 21 window bays in our Colchester showroom display Deceuninck frames — bays 13, 14, 15 and 16 — so you can see the flush sash and tilt and turn openings in person and compare them against the other uPVC, aluminium and timber systems we fit.
Get a quote for Deceuninck windows and doors
Talk to Windows Etc about the Traditional 2500, Heritage 2800 or the Heritage Flush window and door, or visit our Colchester showroom to see four Deceuninck bays in person.
