Endorsed by Which?

Renew All Sash Services


6 Reviews

Opening Hours
Today - 08:00–17:30
  • Monday 08:00–17:30
  • Tuesday 08:00–17:30
  • Wednesday 08:00–17:30
  • Thursday 08:00–17:30
  • Friday 08:00–17:30
  • Saturday - Closed
  • Sunday - Closed

Why you can trust this trader

After undergoing rigorous assessment to become endorsed, every Which? Trusted Trader agrees to our Code of Conduct. This gives consumers the reassurance that they have the best possible protection and adds an extra layer of security to ensure best practices and procedures are followed. Which? fully investigates any breaches and will take any necessary action to ensure consumer protection.


We are a very personable company who takes great care with every contract we do, to make sure we provide our all our clients with the best possible service.

We are specialists in timber sliding sash windows, casement windows and doors. We won't only install newly manufactured but will also tackle the sometimes more difficult jobs where full refurbishments to your existing windows is needed.

We are proud to say we have successfully worked on Grade 2 listed buildings returning those much loved original windows and doors back to their former glory.

We will tackle everything from:

Complete new installations
Fitting new double glazed sashes into existing box frames
Draught Proofing
Full refurbishment to all of the existing windows or doors.

What we do

  • Glaziers

    • Aluminium Windows
    • UPVC Windows
    • Double glazed units
    • Double glazing installation
    • Replacement window services and repairs
    • Sash windows
    • Stained glass
    • Timber windows
  • Draughtproofing installers

  • Double glazing

    • Double glazing installation
    • Double glazing suppliers
  • Conservatories

    • conservatory roof conversions
    • Conservatory Roof replacement
    • Hardwood conservatories and orangeries
    • Sun Lounge
  • Doors

    • Bi-fold doors
    • French doors
    • Composite doors
    • Door repairs
    • Front door
    • Orangeries
    • Patio doors
    • Timber doors
    • UPVC doors
    • ​Aluminium doors
  • More Services

    • casement windows

Customer reviews

Why you can trust these reviews

All reviews are verified as being genuine and a true customer of this trader.

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100% of the reviews we publish have been through our stringent moderation process.

6 reviews
Customer Service
Sort by
Superb workmanship, excellent quality windows, polite and tidy.
Customer Service
Absolutely delighted with the new windows we had put in throughout our Edwardian house. These included two large bay windows with the complication of sagging bays. We also had sash windows and casement windows fitted. The quality of all of the products is superb - very high quality wooden framed windows with double glazing. We also had detailing with leaded panes and frosting in the bathroom, all of which were excellent quality. Brett and his team take a real sense of pride in their work with great attention to detail and an outstanding finish. We could not be happier! The team were polite, courteous and professional and made every effort to minimise the impact to us by thoroughly tidying up every night. They were punctual and worked diligently throughout. I wouldn't hesitate in recommending Renew All Sash to friends, family or anyone who asked; their work is excellent.
Customer in Greater London Posted on 05/12/2018 , work completed 03/12/2018
Brilliant new Sash Bay Window
Customer Service
Brett and Team were brilliant. The new Bay Sash is beautiful and it has completely transformed the house. They took out the old plastic frames, refurbished the original window surround and replaced the window panes. They were organised, punctual, tidy and a pleasure to have around. The windows look stunning and my neighbours have window envy :)
emma Bryden Posted on 30/06/2018 , work completed 30/06/2018
6 Sash windows fully refurbished and 1 new pair of sashes installed
Customer Service
From the outset Brett was professional and explained all our options. This was swiftly followed up with a detailed quote and a date for the the proposed work. Following a telephone conversation to clarify a few questions I had, I felt very confident I wanted Brett to do the job. Our previously aging, and rattly old sashes now look beautiful, are drought proof and run perfectly smoothly. They have better security to boot. The work was completed as agreed and on time. They are lovely chaps, a delight to have in your home and they left everything spotless. Would definitely use them again.
2011-07-05 17:12:11.207 Posted on 13/06/2018 , work completed 13/06/2018
Great bay windows
Customer Service
We had the window panes replaced in our bay window. Also the bay window was refurbished from the inside. The work was done in a professional and efficient manner. Very tidy. They did the work in the time that was estimated for it to be done.
Which? Trusted Traders Consumer Posted on 08/09/2017 , work completed 08/09/2017
The trader replied (on 02/05/2018)
Thank you so much for the kind review.
Satisfied customer
Customer Service
One replacement sash window fitted. Very tidy efficient men.
Which? Trusted Traders Consumer Posted on 06/09/2017 , work completed 06/09/2017
The trader replied (on 02/05/2018)
Thank you so much for the time to send us the feedback.
Highly recommended
Customer Service
Brett and his colleague installed new hard wood french doors, a kitchen window and repaired and draft-proofed a large sash window, all at a competitive price. He is professional, honest , polite and friendly. He doesn't mess you about on start and completion dates. The work was of a very high standard with great attention to detail, I could not have been happier with the results
Which? Trusted Traders Consumer Posted on 09/06/2016 , work completed 09/06/2016
The trader replied (on 02/05/2018)
Really appreciate the feedback.