We specialise in timber sash windows and doors - repairs, restoration, and full replacement. Every window and door is made to your exact measurements.
Bespoke double-hung sash windows for period and modern properties. All glazing options, any colour, any timber grade.
Learn more →Side-hung, top-hung, and fixed-light casements. Ideal alongside sash window projects or where sashes are not appropriate.
Learn more →Bespoke timber entrance doors to match the character of your home. From the Anvil ironmongery across 17 metal finishes.
Learn more →Paired timber doors - a natural fit for rear elevations of Victorian and Edwardian period homes.
Learn more →Cords, weights, pulleys, cills, rot repairs, ironmongery. Full overhaul bringing your sashes back to smooth operation.
Learn more →The Reddiseals system fitted to parting beads and frame head. Reduces heat loss and noise with no visual impact.
Learn more →Every job starts with a personal site visit. No estimates from photos. No hard sell. Just an honest assessment and a clear written quote.
Fantastic job on our sash windows in Kensington. Every window was surveyed properly, the quote was clear, and the finished result is superb. Highly recommend.
2 weeks agoWe had six sash windows overhauled and draughtproofed in our Chelsea flat. The team were tidy, on time, and the difference in warmth and noise is remarkable. No hard sell at the survey either.
1 month agoFull replacement sash windows in our Notting Hill conservation area. They handled the planning side, matched the original profiles exactly, and the vacuum glazing has transformed the house. Outstanding.
3 months agoKensington Sash is the specialist for the boroughs around our W8 base - the streets of West and Central London where period sash windows, conservation areas, and listed buildings are most concentrated. It's the work we know best.
Whether it's sash window repairs in Kensington, replacement windows in Chelsea, draughtproofing in Fulham, or a conservation area survey in Chiswick - we're on your doorstep and we know the local planning landscape inside out. Selected projects further across London are considered by arrangement.
Request a QuoteA selection of completed projects across London.
10 hardwood casement windows in RAL 9016 with decorating, blinds, and Burnished Brass From the Anvil ironmongery.
Full replacement in Engineered Redwood with slimline double glazing and antique brass ironmongery.
Full overhaul, draughtproofing, and ironmongery replacement in a conservation area.
Vacuum glazing specified and approved. FSC Accoya timber throughout.
Every property is surveyed in person - no estimates from photos, no hard sell.