uPVC windows in London, made in our own factory.

We fabricate on a 70mm, multi-chambered uPVC profile system: five to six internal chambers trap air and break the cold path from outside to in, with galvanised steel reinforcement where spans demand it. Chambers matter more than brochure names: each one is another barrier heat has to cross. The same platform builds casements, tilt-and-turns, bays and vertical sliding sash lookalikes, so a whole house can share consistent sightlines.

Standard spec is a 28mm double-glazed unit, low-emissivity glass, argon-filled cavity, warm-edge spacer, achieving around 1.2 W/m²K and an A window energy rating. Upgrade to a 44mm triple-glazed unit and that drops to roughly 0.8 W/m²K, worth it on cold elevations and busy roads where the extra pane also cuts noise. Acoustic laminated and obscure glass are available per window, not per order, so the bathroom and the bedroom can differ.

White remains the classic, but most of what leaves the factory for London now is foiled: anthracite grey (RAL 7016), black, cream, Chartwell green, and woodgrain foils such as golden oak and rosewood that read convincingly as timber from the pavement. Dual-colour is the smart buy for period streets: grey or woodgrain outside to suit the elevation, white inside to suit the room.

Every window carries multi-point espagnolette locking with mushroom cams that pull the sash tight into the frame at several points, key-locking handles, and internal beading, so the glass physically cannot be popped out from outside. For ground floors, side returns and windows above flat roofs we recommend the PAS 24 / Secured by Design upgrade with laminated inner panes. If an older uPVC window is failing rather than finished, our uPVC window repair team can often replace the gearbox or hinges instead.