Sash Window Repair Earl’s Court
Sash Window
Repair in
Earl's Court
Period property specialists serving Earl's Court, West Brompton, Kensington and Chelsea — repair, restoration and glazing upgrades done properly.
Scroll down to see what we doVictorian terraces, mansion blocks —
windows worth preserving
Earl's Court and the surrounding SW5 postcode is one of London's most architecturally consistent areas. Earl's Court has a strong mix of Victorian terraces, stucco-fronted houses and red-brick mansion blocks. Around Earl's Court Road, Nevern Square, Philbeach Gardens and West Brompton, many period properties still retain original timber sash windows that are worth repairing rather than replacing.
Much of the area sits within Conservation Areas covering the Royal Borough of Kensington and Chelsea. The original sash windows found on these properties — often tall, elegantly proportioned, with slim glazing bars — are a key part of what makes them valuable and distinctive.
Hartwell Sash works throughout Earl's Court and the surrounding streets, repairing and restoring original sash windows on Victorian terraces, mansion blocks and period flats. We understand what these windows need — and how to keep them working properly for years to come.
What we do —
done properly
Every service carried out with care and precision
Draught Proofing
Cold draughts and outside noise reduced significantly — without changing the appearance of your windows. We replace staff bead and parting bead with precision brush pile seals and fit a brush seal at the meeting rail.
Sash Cord Replacement
Windows that slam shut or won't stay open — fixed properly. We replace both sash cords on both sides and rebalance both sashes as standard. One visit, done properly.
Glass Replacement
Cracked, broken or misted panes replaced carefully — preserving the original timber frame. Heritage glass available for Conservation Areas throughout Earl's Court.
Timber Repair & Repainting
Rotting timber repaired, not replaced wherever possible. Tall Victorian sash windows and exposed painted timber in Earl's Court often suffer from peeling paint, soft lower rails and moisture damage over time — we repair the cause, not just the visible defect.
Slimline Double Glazing Upgrade
Upgrade single glazing to slimline double glaze units — fitted within the existing frame, preserving the original look entirely. Better insulation, less noise, no change to the character of your property.
Full Sash Replacement
When a window is genuinely beyond saving — we supply and fit heritage timber sash windows made to match the original design of your property. Not uPVC. Timber, made properly.
"Nick replaced broken sash cords quickly and efficiently. Very tidy work — wouldn't hesitate to book again."
"Outstanding craftsmanship. You can tell this is done by someone who really cares about the work."
"Clear communication and fast work — exactly what you want. Arrived on time, left everything spotless."
Working in
Earl's Court's
protected streets
Much of Earl's Court sits within Conservation Areas administered by the Royal Borough of Kensington and Chelsea. Original sash windows are considered integral to the architectural character these areas exist to protect.
In many cases, draught proofing, cord replacement and careful like-for-like repairs can be carried out without changing the appearance of the window. For listed buildings, flats, replacement work or properties under specific restrictions, we always recommend checking the correct consent requirements before work begins.
Free survey
in Earl's Court
We visit your property, assess every window and give you an honest quote — no call-out fee, no obligation, no pressure. We aim to respond the same day.