Contemporary uPVC Sash Windows
For those who value clean lines, considered design, and effortless functionality, our Contemporary uPVC sash windows offer a refined, cost-effective solution. With a pared-back aesthetic and subtle detailing, they suit everything from urban apartments to modern extensions and new-builds.
Engineered for low maintenance and everyday performance, they bring the look of classic sash windows into a more accessible, contemporary format. Itâs a streamlined alternative for those who want style and practicalityâwithout compromise.

10-year guarantee on Paint finish
5-year warranty on ironmongery & seals
10 years on Workmanship
10 years on Glazing
Classic Style, Reliable Performance
03 classic AESTHETICS
Featuring run-through sash horns, with optional astragal bars which are designed to replicate the traditional appearance of Victorian, Georgian, or Edwardian sash windows.
03 High Thermal Efficiency
Achieve excellent thermal performance with multi-chambered frames, 24âŻmm Argon-filled double glazing, LowâE glass, and Uâvalues as low as 1.2â1.4âŻW/m²K.
02 Weather Resistance Refined
Expertly engineered to handle the demands of British weather, with durable, low-maintenance uPVC that wonât warp, fade or rot over time.
04 Security You Can Trust
Standard high-security locks with optional PAS24 packageâincluding reinforced tilt latches, sash bolts, and dual locksâcrafted to meet new-build security standards.
05 tilt FUNCTIONALITY
Both top and bottom sashes effortlessly slide and tilt inwards, allowing interior cleaning and flexible ventilation without compromising aesthetic or function.
06 Â Colour & Glazing
Available in smooth white and woodgrain options for added character, along with advanced glass designs and perfectly matched trickle vents.
Contemporary Craft, Period Inspired Features

Our Contemporary sash windows bring modern simplicity to a classic form, combining clean lines, subtle heritage touches, and next-generation performance.
Ideal for contemporary homes or those blending old with new, they offer smooth, tilt-in functionality for easy cleaning, reinforced strength for larger openings, and multi-chambered insulation for year-round comfort and efficiency

Why Choose Sash Windows London
End-to-End service
From your initial inquiry to the final installation, the experience feels personal and tailored. Think clear communication, honest advice, and expert guidance at every stepâbecause excellent service should feel effortless.
London-Centric Expertise
We possess in-depth knowledge of Londonâs planning regulations, conservation requirements, and the distinctive character of its historic homes. This understanding ensures smooth surveys, precise installations, and attentive aftercare explicitly tailored to the cityâs distinct properties.
High-Quality Craftsmanship
Trusted for windows that marry flawless performance with timeless beauty. Every detailâfrom perfect proportions to exquisite finishesâis designed to complement period charm or elevate contemporary style.
sustainability
Using FSC-certified timber and fully recyclable PVCu, weâre dedicated to responsible craftsmanshipâcreating products that respect both quality and the planet.
Have Your Choice of uPVC Sash Windows
Our uPVC windows can be customised with a range of glazing and finishes to suit your unique needs.
Browse our designs in our brochure, or get in touch with us right away if you’d like to speak to a member of our team. We’ll be glad to help you decide on the ideal design for your windows.
