Deceuninck 2500 Systems
Reliable, cost-effective casement performance
Deceuninck 2500 is the trusted entry-level system in the Deceuninck range — proven over decades, exceptional value, and still A-rated thermally with PAS24 security as standard. Perfect for sensible whole-house replacements where outright performance and finish matter, but the budget needs to do real work.
Why choose Deceuninck 2500 Systems
- A-rated thermal performance from a budget-friendly system
- Decades of proven UK reliability
- PAS24 security accreditation
- Maintenance-free for 25+ years
- Choice of timber-look and modern finishes
- Backed by Deceuninck's 10-year manufacturer warranty
- Installed by SGS with a 10-year workmanship guarantee
Engineered for performance
- 5-chamber 70mm sculptured profile
- Steel reinforcement throughout
- Yale shootbolt locking
- Argon-filled sealed units
- Internally beaded
- Trickle vents available
Configurator
Mix and match colours, hardware and glass to suit your home.
Available finishes
Choose your style
- Side-hung casement
- Top-hung opener
- Fixed light
- Bay
Glass options
- Argon-filled double glazing — A+ rated
- Triple glazing for ultra-low U-values
- Acoustic interlayer for noise reduction
- Solar-control low-E coatings
- Decorative leaded, Georgian bar and stained options
Furniture & hardware
- Yale multi-point locking with anti-snap, anti-pick, anti-bump cylinders
- Heritage monkey-tail and pear-drop handles
- Modern lever-action handles
- Concealed hinges with restrictor option
- Brass, chrome, satin and matt-black finishes
- PAS24:2016 Secured by Design accreditation
WER A-rated as standard, with U-values around 1.4 W/m²K on double-glazed units. A significant upgrade on any pre-2010 windows and a smart investment for whole-house replacements.
Engineered to protect
PAS24:2016 Secured by Design with Yale multi-point locking and anti-snap cylinders included as standard. Internally beaded for additional protection.
Tailored to your home
Available in white, cream, anthracite grey, black and a range of foiled woodgrain finishes. Decorative options include leaded glass, Georgian bars and stained details.
Property suitability
Budget-conscious whole-house replacements, rental properties, modern post-1990 housing — anywhere a reliable, well-installed A-rated window will deliver immediate comfort and energy savings.
How we fit it
SGS installation includes full survey, manufacture, fitting, weatherproofing and removal of old units. Whole-house projects typically complete in 2–4 days.
Frequently asked
How long does installation typically take? +
Do you offer a guarantee? +
Can I match my existing windows or doors? +
Are your installers FENSA registered? +
Like the Deceuninck 2500 Systems? Let's talk.
Free home survey across Staffordshire — typically booked within 48 hours.