Sliding Sash.
Heritage uPVC Window
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Period looks. Modern bones.
From the outside, a Quickslide vertical sliding sash is indistinguishable from a traditional Victorian timber box sash. Slim glazing bars, run‑through sash horns, an authentic deep bottom rail, and heritage mouldings throughout. From the inside, it is the quietest, warmest, and easiest‑cleaning window you will own.
Both sashes tilt inward on a concealed pivot — so the outside face can be cleaned from the comfort of your living room, no ladders required. A spring‑balance mechanism holds the sashes in place at any height. No cords, no weights, no seasonal swelling.
Conservation area approved.
We have fitted hundreds of these windows in listed streets across London — Islington, Camden, Notting Hill, Greenwich. Most planning officers will approve them on first pass because the sightlines, proportions, and mouldings mirror timber originals to within a few millimetres.
If your property is in a conservation area, we will handle the application paperwork — including historic photographs and comparative drawings — as part of the quote.
Specifications
Quickslide Legacy vertical sliding sash with concealed spring‑balance counterweight system (no chain, no pulleys). Tilt‑in mechanism releases both sashes inward for cleaning. Authentic run‑through sash horns and deep bottom rail as standard. A‑rated under PLC Window Energy Rating scheme with Low‑E glass as standard. 24mm double‑glazed warm‑edge insulated unit with argon fill. Class 4 air tightness and Class 6A water tightness; tested to wind Class 3A (1200Pa). Maximum dimensions 1500mm wide × 3000mm tall. PAS 24 security upgrade available. Multi‑point locking via hidden cam mechanism at the meeting rail.
Single sash, double sash, and bay configurations. Astragal bars, Georgian bars, or clear glass. Run‑through sash horns, stop‑chamfer horns, or none. Compatible with heritage woodgrain foil colour range to match original properties without any painting maintenance.
Colour Options
Available in White, Cream, and Woodgrain as standard.
Heritage colour range with traditional finishes to complement period properties.
