awards winning Traditional box sash window specialists

Refurb-a-Sash is a BSI ACCREDITED, LONDON BASED, AWARD-WINNING COMPANY offering specialist advice and services for traditional timber sash & casement windows and french doors.

Services include: operational overhauls and draught proofing of existing windows, full or part replacement in single or double-glazing and renewal / reinstatement of originals, noise reduction with acoustic glass and guidance for listed building owners.

All products are produced by time served craftsmen faithfully replicating original features using traditional joinery methods. All selected timber is preservative treated, hand prepared and spray paint finished.


Trust Mark, GGF and Fensa Registered

Operational Overhauls


A comprehensive service to install draught proofing & improve security as well as rectify common problems including poor fit, imbalance, broken cords and stuck Sashes. Read More

Upgrade & Part Replacement

Upgrade & Part Replacement

An intermediate service incorporating the overhaul service but including new Sash Frames and Sills if required. Includes upgrading to double glazing and / or noise control glass plus refurbishment of the original Box Frame. Read More

Full Renewal

Full Renewal

A complete ‘back to brick’ replacement window including Box / Casement / Door Frame, Sill and surrounding mouldings usually requiring Building Regulation compliance. Read More