Barnsbury Joinery is a heritage joinery studio working with the period and listed buildings that give London so much of its character. Since 1987 we have surveyed, restored, repaired and made timber windows, doors and fitted joinery for homes and buildings across the capital and the South East, and we supply made‑to‑measure joinery to clients across the rest of the UK. We are the flagship London studio of The Barnsbury Group, and everything we do is shaped by a simple belief: original timber joinery, made and maintained properly, will outlast almost anything that replaces it.

Our reputation rests on bespoke sash windows in London and on the careful, considered work that surrounds them. Whether that means bringing a set of tired Georgian sashes back to full working order, matching new joinery to a Victorian terrace, or fitting out an entire period property, we approach each project as a piece of craftsmanship rather than a product off a shelf. Timber has been used to make windows and doors in this country for centuries, and there are good reasons it has never really been bettered.

Well seasoned hardwood and softwood, worked by hand and finished properly, is repairable, adaptable and quietly beautiful in a way that modern replacements struggle to match. When a sash window has stood for a hundred years or more, the sensible thing is almost always to conserve what is there, replacing only what has genuinely failed. That philosophy runs through all of our work.

Our makers are trained in traditional techniques, from cutting and fitting new sash sections and splicing in fresh timber where rot has taken hold, to re‑cording, re‑weighting and re‑balancing windows so they glide as they were designed to. We use materials chosen to suit the age and setting of each building, and we take the time to get details right, because those details are what separate a repair that lasts a generation from one that fails within a few years. For our bespoke sash windows in London, we begin every commission from the existing architecture.