Sash Window Painting & Restoration in London
Sash windows are the signature of a London period home — and the first thing to fail without proper maintenance. We restore, repair, draught-proof and repaint sash windows across every conservation area in the capital.
Sash Window Painting across London
A neglected sash window shows up first in the paint: flaking, cracking putty, and daylight around the sashes. Left long enough, the sill goes soft, the bottom rail rots, the cords snap and the whole window jams shut. We take on sashes at every stage — from a cosmetic repaint to a full box-and-sash overhaul.
Our sash work covers three linked skills: timber repair with West System epoxy or splice-in of matched softwood; sash mechanism overhaul including new cords, pulleys and parting beads; and a proper four-coat paint system on primed timber that survives decades of London weather. We're conservation-area friendly — we know when English Heritage lime putty is right vs. modern linseed putty, when to keep original glass, and how to match traditional profiles.
Draught-proofing is a common add-on: routed brush seals in the meeting rails, parting beads and staff beads that cut heat loss dramatically without changing the window's look. Combined with a repaint you get a window that looks period-correct, moves smoothly, and doesn't cost you a fortune to heat.
Why homeowners choose our sash windows team
Timber repair before repaint
Rotten cills and rails spliced or epoxied — no painting over problems.
Full mechanism overhaul
New cords, pulleys and parting beads so the sashes actually work — not just look painted.
Draught-proofing option
Brush seals in meeting rails and parting beads — big heating savings, invisible finish.
Conservation-area experience
We know what heritage officers accept, and use lime putty and traditional profiles where required.
How a typical sash windows job runs
- 01
Survey
Every sash checked for rot, cord condition, glazing, putty and paint failure.
- 02
Repair
Timber repairs, new cords, parting beads and glazing putty as needed.
- 03
Prep & prime
Old paint sanded, bare timber primed with aluminium wood primer, gaps filled.
- 04
Draught-proof (optional)
Sashes removed, routed for brush seals, and refitted.
- 05
Topcoats
Undercoat plus two topcoats in Zinsser AllCoat or Tikkurila Unica — durable in all weather.
Sash Window Painting in your area
We cover all of Greater London. Popular areas for our sash windows service include:
Sash Window Painting questions, answered
Can you paint sash windows without removing them?+
For a cosmetic repaint yes — we can prep, prime and topcoat in-situ, painting the sashes in a specific order so they don't stick shut. For full restoration or draught-proofing we remove them.
How long do restored sash windows last?+
A properly restored and repainted sash window has another 25–40 years in it. The original Victorian softwood is usually better quality than anything you can buy new.
Do you replace broken sash cords?+
Yes — new waxed sash cord, and we replace pulleys and parting beads at the same time if they're worn.
Is draught-proofing worth it?+
For most Victorian and Edwardian sashes, yes. It cuts heat loss noticeably, stops the whistle in winter storms, and — done properly — is invisible from inside or outside.
Do you work on listed buildings?+
Regularly. We understand what listed building consent requires and use lime putty, traditional linseed paints and matched softwood where specified.
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Ready to book your sash windows job?
Call for a chat, or send us the details and a couple of photos — you'll have a written quote the same working day.