Preserving the character of your sash windows ….

Refurb-a-Sash is an award winning single and double glazed sash window company in London. We’re Certass accredited and have been trading from our premises in West London for over 25 years. We offer a specialist repair, installation, refurbishment & replacement service for single and double glazed sash windows throughout London including traditional timber sash windows, casement windows and French doors.

Sash Windows West LondonOur sash window installers cover all of South West and West London (and parts of Surrey and Middlesex – so do ask) and offer …

Operational overhauls and draught / sound proofing of existing sash windows.

Full or part replacement for single or double glazed sash windows.

Original wooden sash window repairs, refurbishments or replacements.

Noise reduction / sound proofing with acoustic glass & the best advice for listed building owners.

Our single and double glazed sash windows, casement windows and french doors are produced by time served craftsmen in our West London workshop, faithfully replicating original features using traditional joinery methods. All selected timber is preservative treated, hand prepared and our wooden sash window frames are spray paint finished.

Sash Window Repairs & Overhauls

A comprehensive sash window repair service to install draught proofing & improve security as well as rectify common problems. Including poor fit, imbalance, broken cords and stuck sash windows.


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Sash Window Refurbishment

An intermediate service incorporating our repair service but including new sash window frames and sills if required. Plus upgrading to double glazed windows and / or noise control glass and refurbishment of the original box sash window frame.


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Sash Window Replacement

A complete ‘back to brick’ replacement service including Box sash windows, Casement windows and French door frames, window sills and surrounding mouldings usually requiring Building Regulation compliance.


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Sash Window Installations since 1992

The concept behind Refurb-a-Sash is to offer a realistic alternative to replacing period Victorian sash windows in West London with unsightly & inappropriate modern and uPVC replacements.

Our company was formed in 1992 and we began doing exactly as our name suggests, refurbishment & repairs of sash windows, providing solutions to common problems such as rattles, draughts, broken cords and poor security.

Single & Double Glazed Sash Windows

With strong initial demand it soon became apparent that some original sash windows were simply too decayed to be refurbished economically. So a ‘part renewal’ service was then introduced to provide sash window replacements, ‘like for like’ timber sections and sash frames. This natural progression led to requests for a double-glazed version of the traditional corded sash window which we introduced in 1993.

Originally operating from shared premises in East Sheen SW14, the business relocated to workshops in Kew, West London, where further staff were taken on and our acoustic glass windows range was developed in response to those clients requiring greater noise attenuation from the Heathrow flight path and nearby busy roads.

By 1998 we had outgrown Kew and moved to larger premises in Twickenham. This additional space enabled us to bring our double-glazed unit and glass production in house, thereby taking further control of the quality of our products at all stages. Over the next five years our company and reputation grew with the receiving of a Design and Conservation Award for our work in Richmond together with recognition for the environmental policies adopted by the company. These included our iconic Modec all electric delivery van & smart company cars often seen around West London and North Surrey – many years before the electric vehicle revolution which is now commonplace.

By 2010 our company had taken on two further workshops in Twickenham, although the logistics of moving products between them was not ideal and in 2011 we moved to our current 13,500 square feet premises in Isleworth TW7. We have further developed our special glass department to include stained glass panel rebuilds, textured glass and triple glazing. Our joinery is a wonderful combination of traditional hand and craft skills together blended with the latest in woodworking technology. Our extensive product range now includes sash windows, casement windows, single & French doors, all made to order, hand finished, and spray painted in durable long life coatings.

With excellent customer reviews, extensive recommendations and a full range of manufactured and installed sash windows and doors available, you are welcome to visit our showrooms and workshops. Alternatively take a virtual tour of our West London showroom now by clicking the button above, or simply call us for free impartial advice.

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Double Glazed Sash Windows
1432a Clock Tower Rd, Isleworth London TW7 6DT

“Have nothing in your house that you do not know to be useful, or believe to be beautiful.”


William Morris

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