Preserving the character of your sash windows ….

Refurb-a-Sash is an award winning sash window company in London. We’re Certass accredited and have been trading for over 25 years offering specialist installations for sash windows in London. We offer advice, repairs, refurbishments & replacements for single and double glazed sash windows, traditional timber sash windows, casement windows and French doors.


Sash Windows West LondonOur sash window installers cover all of London (and just outside of West London – 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

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 overhaul 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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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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