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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. It’s a streamlined alternative for those who want style and practicality—without 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, 24 mm Argon-filled double glazing, Low‑E glass, and U‑values as low as 1.2–1.4 W/m²K.

02 Weather Resistance Refined

Expertly engineered to handle the demands of British weather, with durable, low-maintenance uPVC that won’t warp, fade or rot over time.

04 Security You Can Trust

Standard high-security locks with optional PAS24 package—including reinforced tilt latches, sash bolts, and dual locks—crafted 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  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 step—because excellent service should feel effortless.

London-Centric Expertise

We possess in-depth knowledge of London’s 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 city’s distinct properties.

High-Quality Craftsmanship

Trusted for windows that marry flawless performance with timeless beauty. Every detail—from perfect proportions to exquisite finishes—is designed to complement period charm or elevate contemporary style.

sustainability

Using FSC-certified timber and fully recyclable PVCu, we’re dedicated to responsible craftsmanship—creating 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.