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Sash Doctor

+Approved member since 2013

Services and skills

  • Windows / Doors / Conservatories

    7 skills

    Bay Windows Installation

    Bay Windows Repair

    Draught Proofing

    Timber / Wooden Windows Installation

    Timber / Wooden Windows Repair

    Wooden Sash Windows Installation

    Wooden Sash Windows Repair

  • Services

    5 services

    • Domestic Work
    • Commercial Work
    • Free Estimates
    • 24 Hour Call-out
    • Insurance Work Undertaken

Customer reviews

Overall ratingin last 12 months

10Write a review
  • Workmanship10 out of 10
  • Tidiness10 out of 10
  • Reliability10 out of 10
  • Courtesy10 out of 10
Write a review

125 Total Reviews

The reviews below represent customers' views and not the views of Checkatrade

  • Refurbishment of double glazed wooden sash windows.

    10Verified Review

    Jason was prompt He clearly knew what he was doing, and kept me informed as to what he found and actions he took to fix any issues. Before he left he made sure I could open all the windows and is a whiz with the hoover. I've asked him to come back to do the same refurbishment to the lounge windows.

    Location: EN2
  • Leaking window in extension, rain water coming through joins in the wood.

    10Verified Review

    Jason responded quickly to my job request, called me to arrange to come and have a look at the job, thoroughly explained what the issue was and how it could be fixed, and gave me a very reasonable quote, which was also then sent in writing by email. He then came and did the job on the date/time agreed, did an excellent job stopping the window leaking and protecting the whole area, and even gave us advice on how else we could protect the outside of our extension. He was professional, polite, friendly, just a really nice guy as well as being an expert at what he does. Thank you!

    Location: IG1
  • Sash window draught proofing.

    10Verified Review

    Jason is great and loves his craft. He draught proofed and added brushes to three sash windows. Plus fixed the ropes and weights and added window locks. A solid, professional job.

    Location: N5
  • Repair and draft-proofing for two windows

    10Verified Review

    Both windows had a number of things wrong with them, one had completely snapped cords. Everyone else I called refused to offer anything other than a complete refurbishment or replacement package for thousands of pounds, but Jason and Kay gave me a really reasonable quote for just repairing the issues and installing draft-proofing. I'm really impressed with the job Jason did, especially given how old these windows are, and that he did both in one morning! He did a flawless job. I'll definitely be giving him another call if any other issues come up, and I'd happily recommend him to anyone.

    Location: E8
  • Sash window restorations

    10Verified Review

    Jason and his colleague have done an amazing job in restoring my sash windows. That included refurbishment and draught proofing of 6 windows, as well as replacement of hardwood sill and bottom sash for 2 windows. The quality and the timing of work was above all expectations, the communication was always very clear, and the process was very smooth and efficient. I highly recommend Sash Doctor for sash window restoration services, as I couldn’t be happier with the results.

    Location: NW5
  • Window replacement

    10Verified Review

    We are so grateful to Jason for all his work. He is incredibly knowledgable and very professional. On a previous occasion he draught proofed all our windows, and we asked him to come back to replace a rotten sill. We would certainly not have asked him back had he not done an excellent job previously.

    Location: N5

Company profile

  • OwnerMr Jason Vanderhyde
  • Member Since2013
  • Public Liability InsuranceSelf-Certified
  • AddressChecked
  • IdentityChecked
  • Checkatrade T&C'sSigned
  • VATNo
  • Company typeSole Trader

Company info

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 uses 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.

Contact details