10 Year Guarantee

Quality you can trust

Delivery Nationwide

Across the UK

Price Match Promise

Best value assured

Fastest Lead Times

Quick supply options

Agate Grey uPVC Windows – Winchester Design

⭐⭐⭐⭐⭐ 4.9 based on 1298 Reviews

Price Starts From £387.00

Delivery from £36.00 (inc. VAT)

Stocked Item   |   DELIVERY: Usually Delivered Within 2 – 3 Weeks
£
Important Pricing Note

Price Shown Is a Starting Price

The price shown above is a starting price only. Your final quote may vary depending on your window size, frame style, hardware colour, glass option, opening style, and any additional requirements.

For an accurate price, please send us your requirements and our team will provide a clear quote based on your exact specifications.

Get a Quote Today

The Winchester Design choice delivers Agate Grey colour, secure internal beading and a full energy package: A-rated 1.3 W/m²K performance, argon-filled glazing, black warm edge superspacer bars, 70mm multi-chamber uPVC frame, patented bubble gaskets, multipoint locking, lockable push-button handle, Part L compliance and a 10-year guarantee.

Please contact us first: The price shown is a starting price for a basic made-to-measure uPVC window in the minimum size range which is 300w x 300h. Your final price will depend on your exact size, colour, glass, hardware and project requirements. Send us your details and our team will confirm a clear final quote for you.

SKU AGW-0072 Categories ,
10 Year Guarantee
Delivery Nationwide
Price Match Promise
Fastest Lead Times
Need help with your project?

Contact WindoorUK for Your Exact Quote

Speak with our team about your window requirements, sizes, colours, glass options and project details. We will help you with a clear quote based on your exact needs.

Width & Height Ranges

For all our double glazed uPVC windows we offer the sizes range are,

  • Frame Width (min-max): 300mm – 1300mm
  • Frame Height (min-max): 300mm – 2200mm

Description

Agate Grey uPVC Windows – Winchester Design is suitable for areas where an understated grey frame suits the building. The Winchester Design is built to give your project a consistent Agate Grey finish while supporting everyday comfort, weather protection and security.

Built around a 70mm multi-chamber uPVC profile, the frame is designed for energy efficiency and a smart sculptured look. A multipoint locking system, lockable push-button hardware and internally beaded frame design help strengthen the window against forced entry.

The patented double-action bubble gaskets are designed to maintain a tight seal around the opening, helping the window resist draughts and changing weather. A-rated thermal efficiency, a 1.3 W/m²K U-value and argon-filled glass units help make this window suitable for modern insulation expectations.

  • Multipoint locking system for secure everyday use
  • Lockable push-button window handle included as part of the hardware package
  • Argon-filled sealed units with black warm edge superspacer bars between the glass units
  • Patented high-performance double-action bubble gaskets to maintain tight weather seals
  • 70mm thermally efficient multi-chamber uPVC frame
  • Internally beaded construction for maximum security
  • Fully sculptured energy-efficient uPVC profile in Agate Grey
  • Fully compliant with Part L Building Regulations
  • 10-year profile guarantee for long-term confidence
  • A-rated window energy performance with a low 1.3 W/m²K U-value

The design is fully compliant with Part L Building Regulations and protected by a 10-year profile guarantee for long-term reassurance. This gives the Winchester Design a clear specification for customers who want Agate Grey uPVC windows with dependable performance, secure hardware and a low-maintenance finish.

Get Your Exact uPVC Window Quote

Please send us your window details, including size, quantity, colour, glass option, hardware choice and delivery postcode. Our team will review your requirements and provide a clear quote based on your project.

Contact Form Demo

Other uPVC Windows Range