Scores based on 66 reviews

Reliability & timekeeping

Invoice history based on 52 reviews.

Invoice History
Charged as per quote / estimate92.31%
Above quote / estimate: kept informed7.69%
Appointments reported as missed (6 months) 0
Average score 9.58
66 reviews
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Based in London, we are the sash window refurbishment and draught proofing specialists.
Lower your heating bills with our draught proof sealing system, guaranteed to stop all draughts and rattles. 
Speak to us today for a test window.
Our services include the following:

  • Sliding wooden sash windows
  • Draught proofing
  • Sash cords repair
  • Relieving jammed sashes
  • Treatment to decaying timber
  • Full renovation service
  • Security locks and stops
  • Painting service provided

Sash Doctor use a method for reducing draughts with discretely positioned seals that conserve energy and improve thermal comfort.

Many timber windows are inherently draughty. With gaps of 3mm and more around the edge, they typically account for 20% of the heat loss from your home.

Our sealing system will usually reduce this heat loss by about 80%. It will also reduce noise transmission, dust penetration and eliminate rattles during windy weather.

While you may wish to retain the weathered fixtures of your windows, a complete range of quality brass locks, stops and fasteners are available.

Based in


Works in

North London, East London, South London, West London, Essex and Hertfordshire.