Original sashes,
brought back to life.
We specialise in the restoration, repair and draught-proofing of original timber box sash and casement windows. Most can be saved — at around half the cost of replacement — and they'll outlast anything you'd put in their place by another century. From a single window to a full house restoration.
Three things,
done properly.
We don't fit uPVC. We don't do plastic replicas. We work on the timber sashes that were originally fitted to your house, using the techniques they were built with — improved with modern sealing and finishes.
Sash Restoration
Full refurbishment of original timber sashes — removal of old paint, splice and repair of rotten sections, new sash cords, replacement sills, parting beads, replacement glass and brass furniture.
- ▸Sash splicing & cord renewal
- ▸Replacement sills & glass
- ▸Brass ironmongery
- ▸Hand-painted finish
Draught-Proofing
In-house designed perimeter sealing — concealed from view, brings original sashes up to modern thermal performance. Silent operation, no draughts, no visual change from the street.
- ▸Concealed brush seals (in-house design)
- ▸Reduces heat loss ~70%
- ▸Listed-building approved
- ▸10-year warranty
Casement & New Builds
Casement windows also restored, and where windows are beyond saving we make and install new ones in our own workshop — like-for-like timber, exact pattern match, proper joinery.
- ▸Casement restoration & new builds
- ▸Bespoke timber replacements
- ▸Conservation officer liaison
- ▸FENSA registered
From the first visit
to the final coat.
Survey
We visit your property, inspect each window, and quote you a fixed price by window. No site fees, no obligation.
Workshop
Sashes come off-site to our workshop. Strip, splice, repair, prime — every window is taken apart and assessed.
Re-installation
Cords, weights, brass furniture, seals fitted. Glazing replaced where needed. Concealed draught-proofing installed.
Finish
Hand-painted finish to your colour spec. Final test on operation. 10-year written warranty issued.
The right timber.
The right finish.
The difference between a window that lasts ten years and one that lasts a hundred is what it's made of and how it's finished. Here's what we use, and why.
Timber
Redwood, Douglas fir and sapele — close-grained, slow-grown softwood and durable hardwood. The same species the originals were made from, properly seasoned.
Paint
Micro-porous breathable paint in any colour you choose. Lets the timber move with the seasons without trapping moisture — the reason old painted sashes rot.
Mobile workshop
We bring a full workshop to you. On-site stripping, splicing, glazing and refit — minimal disruption, no need to crate windows offsite.
Notable contracts
Cors-y-Gedol Apartments, Barmouth. Plas Glanllifon Mansion, Caernarvon. Listed and conservation work delivered to spec.
Small enough to care.
Big enough to cope.
We run a small joinery workshop specialising in box sash and casement windows — restoration, draught-proofing, and new windows made and installed to match the original profiles. It's what we're good at, and it's the work that needs proper craftsmen rather than someone who fits everything.
Most of our clients come from word-of-mouth across the period streets of South and West London, but we also travel — our full mobile workshop lets us come to you, on conservation areas, listed terraces, Victorian and Georgian properties where the original windows still have decades of life in them.
When we quote a job we quote it fixed. When we say a window can be saved, it can be saved. And when something needs replacing rather than restoring, we'll tell you straight.
Tell us about
your windows.
No site fee, no obligation. We'll visit, look at each window individually, and come back with a fixed-price quote within the week.
Common questions.
Can my original sash windows really be saved?
In around 9 out of 10 cases, yes. Even windows that look beyond repair usually have sound primary timbers — it's just the lower sections, sills and parting beads that need surgical replacement. Restoration costs roughly half what new replicas do, and you keep the original glass and character.
Do you work on listed buildings and in conservation areas?
Yes — most of our work is on Grade II listed properties or in conservation areas. We can liaise directly with your conservation officer and produce specification documents for listed building consent applications.
How disruptive is the work?
We work room-by-room and one window at a time. Each window is typically off-site for 5-10 working days during which we fit temporary glazing. You can live in the house throughout.
Will draught-proofing make the windows look different?
No — the seals sit inside the box and parting beads. The window looks identical from the street, and conservation officers approve our system on listed buildings.
Do you offer a guarantee?
Yes. 10-year written workmanship warranty on all restoration work, 25-year on Accoya timber, and our draught-proofing system carries a lifetime seal warranty.