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 advice and services for single and double glazed, traditional timber sash windows, casement windows and french doors.


Our sash window service covers all of London (and just outside of West London – so do ask) and includes…

– Operational overhauls and draught / sound proofing of existing sash windows
– Full or part replacement in single or double-glazed sash windows
– Original sash window repair, refurbishment or replacement
– Noise reduction / sound proofing with acoustic glass & the best advice for listed building owners.


All sash windows, casement windows and french doors are produced by time served craftsmen faithfully replicating original features using traditional joinery methods. All selected timber is preservative treated, hand prepared and the wooden 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.

Read More

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.

Read More

Sash Window Replacement

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

Read More

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

Sash Window Replacement
Double Glazed Sash Windows London
Sash Window Replacement
Timber Sash Windows
Sash Window Restoration
Sash Window Company

Signup Success

Thank you for registering for our newsletter.

Email not correct

Please provide valid email address

An Error Occured