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Greater London · London
Timber Sash Windows in Greater London
Traditional box sash profiles with slim double glazing and draught seals.
- Free measured survey
- Fixed written quote
- Workshop-made, site-fitted
- 10-year workmanship guarantee
- Fully insured
Greater London is a county of Victorian and Edwardian terraces, Georgian townhouses and post-war conversions, where no two chimney alcoves are the same width. That is exactly the kind of building stock a sash window has to be drawn around, so we allow for it at survey stage rather than on fitting day — walls get checked for wind and plumb, floors for level, and the setting-out is taken from the worst reading, not the best.
How we approach it
We build timber sash windows as cabinetmakers rather than fitters: machined joints, real carcass construction, and a finish applied under workshop conditions before anything reaches your Greater London address.
How we build it
Carcass work is birch ply or MR MDF depending on span and load. Face frames and doors are solid hardwood. Everything is machined on the same setting so stiles, rails and reveals line through, and shadow gaps stay parallel from one end of the run to the other.
Finish and materials
You can have it primed for your own decorator, sprayed in any RAL or heritage colour, or left in oiled timber. Oiled finishes can be refreshed at home; sprayed finishes are harder wearing and are what we recommend for kitchens and anything at knee height.
| Guide price | from £1,400 per linear metre, fitted |
|---|---|
| Lead time | 10–12 weeks from signed drawings |
| Construction | Accoya, factory finished |
| Survey area | All of Greater London, including Camden, Islington, Hackney, Wandsworth |
Want a number now? The indicative price tool gives a range in about a minute. A free survey in Greater London turns it into a fixed written quote.
Towns we cover
Other joinery for Greater London
What happens next
Four steps, no surprises
Survey
A joiner visits, measures the opening, checks for level and plumb, and talks through how you want to use the space.
Drawings & quote
You get a setting-out drawing and a fixed written price. Nothing is ordered until you have approved both.
Workshop
Parts are machined, assembled and finished under cover while the site carries on with other trades.
Fit & handover
We fit, scribe, adjust and touch in, then walk you through care and adjustment before we leave.
Straight answers
Timber Sash Windows in Greater London — common questions
Can traditional sash windows be double glazed?
Yes. Slim-profile double glazed units from 11mm fit into a properly made sash without the sightlines going heavy. They weigh more, so the counterweights are recalculated and the cords upgraded.
Cords and weights, or spiral balances?
Cords and weights for a traditional box sash — they are repairable indefinitely and feel right. Spiral balances suit a slimmer box and are the only option where there is no weight pocket, but they wear out and need replacing.
What timber do you use?
Accoya as standard for painted sashes — it is dimensionally very stable, which matters in a component that has to slide. European redwood is available at lower cost with a shorter finish life.
Will the new windows still rattle?
No. The brush seals take up the clearance the sashes need to slide, so they are quiet in wind while still moving freely.
Do you work with architects and builders?
Regularly. We can work to your drawings and specification, price from a schedule, and co-ordinate with the main contractor's programme. We are equally happy dealing directly with a homeowner from a rough sketch.
Start with a measurement
Tell us the space in Greater London — we’ll tell you what it costs
Every quote starts with a free measured survey, so the price you get is the price you pay. No deposit is taken until you have drawings you are happy with.