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The London Sash Window Company

  • Windows / Doors / Conservatories


+Approved member since 2017
Highgate Replacement Sashes

Services and skills

  • Windows / Doors / Conservatories

    12 skills

    Bifold Doors Replacement / Installation

    Conservatory Replacement / Installation

    Double Glazing Repair

    Double Glazing Replacement / Installation

    Exterior Doors Replacement / Installation

    French Doors Replacement / Installation

    Patio Doors Replacement / Installation

    Secondary Glazing

    Timber / Wooden Windows Replacement / Installation

    Window Fitters

    Windows and Doors

    Wooden Sash Windows Replacement / Installation

  • Services

    5 services

    • Domestic Work
    • Commercial Work
    • Free Estimates
    • Insurance Work Undertaken
    • Cards Accepted


Customer reviews

Overall ratingin last 12 months

9.93Write a review
  • Workmanship10 out of 10
  • Tidiness9.95 out of 10
  • Reliability9.75 out of 10
  • Courtesy10 out of 10
  • Quote Accuracy100 out of 100
Write a review

111 Total Reviews

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

  • Helpful, tidy and skilled

    10Verified Review

    The team were really helpful and friendly, and very tidy. Windows now work perfect toy and look good.

    Location: SE1
  • Sash Window replacement/overhaul

    9.75Verified Review

    From start to finish professional and personal service. Always a real person to speak to on the phone if needed. If you need an expert you should consider this company.

    Location: BR2
  • Very happy customer!

    10Verified Review

    Both communication and craftmanship are top quality. A company I will recommend without hesitation

    Location: SE26
  • Excellent sash windows

    10Verified Review

    I love my new sash windows. I researched many companies and selected the London Sash Window Company on the basis of quality and cost. I had 14 full boxes replaced so it was a huge thing for me. Ann in Sales was great and easy to communicate with. Max came for all the measuring, was very clear, detailed and answered all my questions. The installation team was excellent. I knew my windows would be a challenge and they were completely briefed, prepared and very expert in their work. Everyone came on time and did what they said they'd do. The finish is fantastic and they look great. I'm delighted.

    Location: BR3
  • Fantastic Company...

    10Verified Review

    The windows were installed on time, to a high standard, and very little disruption! The quote and booking process were also excellent. I would recommend this company to everyone. Jules, Islington.

    Location: HP4
  • Sash window overhaul + draught proofing

    9.5Verified Review

    My 25 year old sash windows needed repair as they were not staying up. I was also on a tight timeframe as I had new tenants moving in shortly afterwards. London Sash accommodated my timing and did an excellent job on the windows. They now open and close perfectly and looked great immediately afterwards without my having to do any touch-ups or repainting. Thank you!

    Location: N1
Read all 111 reviews

Company profile

  • OwnerMr Simon Pavey
  • Member Since2017
  • Public Liability InsuranceSelf-Certified
  • AccreditationsChecked
  • AddressChecked
  • IdentityChecked
  • Checkatrade T&C'sSigned
  • VATYes: 888706952
  • Company typeLtd Company

Company info

The London Sash Window Company

The London Sash Window Company is experienced in the manufacturing and fitting of wooden sash windows, casements and doors.

Our goal is to provide you with beautiful windows that are warmer, safer and more secure.

More information can be found at

Product and Services:

  • Double Glazed Sash Windows
  • Sash window repairs and draught proofing
  • Plantation Shutters

10 Year Guarantee + FENSA regulated + Local References 

We can also provide:

  • Casement Windows
  • French Doors
  • Secondary Glazing (sound proofing)
  • Commercial works

Our friendly team of estimators are ready to meet you, review your needs and to give you the best quote possible.

We then have a highly experienced installation and client support team, who are here to ensure you have a smooth experience from your first phone call to the completion of works.

When your survey is booked, we will meet with you to understand precisely your requirements, make a thorough inspection of your windows and follow up with a detailed assessment and quote.

Home visits can be arranged starting from 7.30 am in morning or throughout day to suit.
                           To book your survey please call  020 8017 1632                                           
                      More information can be found at

Contact details

Accreditations and awards