01761 233691 / 07876 568543

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Replacement windows in Bristol, Bath, Wells, Street and Somerset.

Double glazed, bespoke sash windows

Draft proofing from MJ Sash Windows

Draught-Proofing & Overhaul of Sash Windows in Bristol, Bath, Wells and Somerset.

Professional repair and refurbishment


We are a family run, bespoke joinery company that specialise in the manufacture and installation of beautiful and elegant fully finished double glazed windows and doors.

As we have an enormous admiration and respect for the elegant timber sliding sash window – this is what we specialise in. However, our passion for this trade extends our expertise to timber casement windows, solid front doors and french doors. We have worked tirelessly to create a product that we are very proud to put our name to.

Our double glazed joinery, especially our sash windows, are second to none. We have been able to successfully blend modern, high performance materials with traditional hand crafted skills of our talented joiners on our external timber windows and doors whilst retaining all the charm and characteristics of your property's historical period.


We are proud to be associated with Amarok Joinery. We work in partnership together and they offer a competitively priced, high quality replacement box sash window. Should you wish to obtain a free quote from this highly reputable company then please click here to go to their website. Our team at MJ Sash Windows have been accepted as one of their approved installers.  










Call 01761 233691

Thank you so much for the fantastic job you did replacing the windows and door in my porch. The craftsmanship is faultless, as every visitor points out to me."

- Sally, Clifton