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London Sash Works Limited

9.97/10

GUILDFORD

Checkatrade member since August 2022

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Website

Services

  • Windows and Doors
  • Window Fitters
  • Loft Windows Installation
  • Patio Doors Installation
  • Wooden Sash Windows Installation
  • Timber / Wooden Windows Installation
  • Exterior Doors Installation
  • French Doors Installation
  • Secondary Glazing
  • Bay Windows Installation
  • Draught Proofing
  • Stable Doors
  • Timber / Wooden Doors Installation
  • Timber / Wooden Windows Repair
  • Timber / Wooden Doors Repair
  • Double Glazing Installation
  • Bay Windows Repair
  • Wooden Sash Windows Repair
  • UPVC Doors Installation

Customer Reviews

Write a review

9.97 /10

Based on 21 reviews over the past 12 months

Quality of work

9.9

Reliability

10

Communication

10

Reviews (450)

  • 10

    Fantastic refurbished sash windows

    Posted 3 days ago

    Adam and team did a fantastic job upgrading our original single glazed timber sashes - they did two bay windows and three further windows over a two week period. The sashes themselves were replaced with new double glazed units (you really do notice the difference) and the boxes were refurbished, which required replacing a few bits of rotten frame. We are really pleased with the end product, the windows look great (in keeping with the period house) and are really functional, plus no more rattling keeping us awake at night. The process with Adam was straight forward, from quote to the time the
    Verified reviewer
    Job location: SW18
  • 10

    Edwardian window repairs

    Posted 10 February

    Excellent communication, job completed to a very high standard. Highly recommend
    Job location: KT10
  • 10

    Excellent job!

    Posted 22 January

    I had a single paned bathroom window replaced with a double glazed window. There were clear timelines and communication was excellent. The new window looks great and I’m very pleased with the overall result. The tradesman was polite and mindful to clean up after every day. I would definitely recommend this company to friends and family.
    Verified reviewer
    Job location: SW17
  • Aarti V
    10

    Installation of new timber sash windows and refurbishment of existing frames

    Posted 18 January

    We are absolutely delighted with our new sash windows! The quality of the windows is excellent and they have made a huge difference to both the appearance and comfort of our home. Adam and his team were thoroughly professional, knowledgeable, and a pleasure to deal with throughout the whole process. We were informed and updated every step of the way throughout. Installation was carried out efficiently and with great care, leaving everything clean and tidy. We wouldn’t hesitate to recommend London Sash Works to anyone considering new sash windows – keep up the fantastic work!
    Job location: KT2
  • 10

    top class team

    Posted 31 December 2025

    Top class outfit. Great guys. No drama. Top notch work. Better than the bigger companies.
    Verified reviewer
    Job location: SW10
  • 9.67

    Delivered to plan

    Posted 23 December 2025

    Adam and the team did a great job from start to end. The communication throughout the process was frequent and clear.
    Verified reviewer
    Job location: SW17

Photos

london sash works ltd
+257

Company Info

Owner

Mr Adam Vanstone

Ltd Company

4 years on Checkatrade

VAT Registered

Yes: 178831958

Domestic WorkCommercial WorkFree Estimates

London Sash Works Ltd is a family run business, operating in London and Surrey. We have been proud members of Checkatrade for 14+ years.


Both commercial and domestic jobs undertaken.

We provide a full range of restoration and replacement services for all timber sash and casement windows.

In addition to timber, we can also offer very high quality and attractive uPVC windows from 'Roseview' and 'Residence 9'

We pride ourselves on having a flexible approach, always trying to find the best overall package to suit each customer's pocket.

This week we are working in Teddington. If you would like to visit us at work and see what we do, please just get in touch.

There are many ways we can improve your timber sash windows.

Refurbishment


  • Full refurbishment of sash openers and box frame
  • Sill and lining replacements
  • Repair / replace any rotten sections
  • Draught proofing
  • Re-glaze broken panes of glass
  • Fit double-glazing units into original sashes
  • Full decoration / painting both inside and out

Replacement:

If your original sashes are beyond restoration or your budget allows, we can fit lovely new timber double glazed sashes into the refurbished box frame.

We have the expertise to make exact replicas of your existing windows, no matter how intricate.

Complete replacements:

Either made to exactly replicate what you have already or made to your specification.

Beautiful new timber box frames and sashes that combine both a traditional aesthetic with modern efficiency.

Leave fully painted and finished inside and out.


Accreditations and awards

City and Guilds
City and Guilds
FENSA
FENSA
The Guild of Master Craftsmen
The Guild of Master Craftsmen

This trade passed up to 12 Checkatrade vetting checks

Member since August 2022

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  • Qualifications and accreditations

  • County court judgement

  • Open source media

Business checks

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  • Company trading history

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  • County court judgement

  • Enhanced business check

  • Director checks

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