Endorsed by Which?

London Sash Windows & Doors Ltd

5.0

30 Reviews

Opening Hours
Today - 08:00–17:00
  • Monday 08:00–17:00
  • Tuesday 08:00–17:00
  • Wednesday 08:00–17:00
  • Thursday 08:00–17:00
  • Friday 08:00–17:00
  • 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.

About

We are a traditional Family Run business with over 15 years of direct manufacturing and installation experience .

Services & Products

Full Sapele Hardwood or Accoya Windows
Hand painted or spray finished windows & doors
Bespoke noise reducing sashes into existing frames
Heritage double glazing in new sashes fitted into existing frames
Draught proofing and overhaul existing timber windows and doors
Custom hand made joinery
Complete replacement windows and doors fitted or supplied
Ironmongery installation

Our Sash Windows & Doors are manufactured in North London.

All installation work completed comes with a
+ 10 Year Guarantee - T & C's apply
+ FENSA certificate for complete replacements -
T & C's apply
+ Insurance Back Guarantee for FENSA registered projects
+ Price match Guarantee

What we do

  • Double glazing

    • Double glazing installation
    • Double glazing repairs
    • Double glazing suppliers
  • Glaziers

    • Sash windows
    • Double glazing installation
    • Double glazing repair
    • Timber windows
    • Window consultants
  • Doors

    • French doors
    • Timber doors
    • Front door
  • More Services

    • draught proofing
    • hardwood windows

Customer reviews

Why you can trust these reviews

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

How can we be so sure?

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

5.0
30 reviews
Customer Service
5.0
Quality
5.0
Value
4.9
Sort by
Excellent from start to finish
Customer Service
Quality
Value
I was so impressed with everyone who I dealt with. They were polite efficient and made my life so easy. As a busy professional with limited time I just couldn’t have asked for a smoother and painless service.
Customer in Greater London Posted on 15/05/2024 , work completed 19/04/2024
FANTASTIC SERVICE FROM START TO FINISH
Customer Service
Quality
Value
I am so impressed with this company. Stuart and the team have been amazing from start to finish. We got our sash windows installed last week and I’m very happy with the results. They look like for like with our old style of sash windows, which is exactly what we wanted. The installers Ray and Paul were amazing, they always arrived and left exactly when they said they would each day, always cleaned up after themselves and were friendly, good communicators, skilled and hard working. We managed to give them a completely empty small room to use as their workshop for cutting the wood down to size, I would suggest everyone does this for the duration of the installation as it minimised mess and didn’t slow down the installation process or duration. Big thumbs up and thanks team :)
Customer in Greater London Posted on 16/04/2024 , work completed 13/04/2024
Highly recommended.
Customer Service
Quality
Value
After getting quotes from three companies, I compared prices and instructed London Sash Windows and Doors. It was an excellent decision. The standard of work was very high, they were clean, punctual and friendly. A family run business that makes you feel like one of their own. Highly recommended.
Customer in Greater London Posted on 15/04/2024 , work completed 15/04/2024
Great work
Customer Service
Quality
Value
Very professional service. Work completed all on time and within budget. Windows look beautiful. Highly recommended
Customer in Greater London Posted on 26/02/2024 , work completed 16/02/2024
Excellent work from start to finish
Customer Service
Quality
Value
V happy with the work done by LSWD -- we received a quick response to our initital inquiry, and the work was then carried out to our total satisfaction. Wouldn't hesitate to use them again.
Customer in Greater London Posted on 02/02/2024 , work completed 31/01/2024
Faultless
Customer Service
Quality
Value
It’s a big decision to get double glazing. I got lots of advice, did lots of research and then requested quotes from 3 companies. LSWD distinguished themselves right away with beautiful, accurate, detailed drawings. I asked to see their work for another customer and went to visit her. She was delighted and her windows looked lovely. So the decision was made. From then on it was all plain sailing. Two visits from very courteous experts to measure up. A clear payment plan. All my questions (I had a lot!) were answered helpfully. There was a long lead time but the agreed date was fixed and communicated clearly. The three gentlemen who fitted my four windows and French doors were a delight. Efficient, tidy, patient with my questions, thoughtful, punctual and expert. Their work is immaculate. All the brass fittings are lovely, high quality and nice to touch. The windows look wonderful inside and out. And it’s so quiet! After they had gone I had another question. That was answered reassuringly, leaving me 100% satisfied with everything.
Customer in Greater London Posted on 19/12/2023 , work completed 29/11/2023
Great workmanship and faultless service
Customer Service
Quality
Value
Just had 3 new double glazing sashes installed. They were amazing from start to finish. Very clear in their approach, great communication and there installation team couldn't have been more friendlier and spotless. We live in a conservation area and the windows are an exact copy of what we had before. Can only recommend these guys.
Customer in Greater London Posted on 01/12/2023 , work completed 30/11/2023
Four new sash windows and door draught proofed.
Customer Service
Quality
Value
Excellent work and customer service from beginning to end. The office always responded to emails and confirmation was always put in writing. All site visits were helpful and and attention to detail. The men installing the windows were on time polite and considerate.
Customer in Greater London Posted on 07/11/2023 , work completed 23/10/2021
Experienced, helpful and reliable
Customer Service
Quality
Value
We needed a new box sash window supplied and fitted in our rear bedroom, complete with pre-finished ironmongery and draught-proofing. Melvyn from London Sash Windows & Doors Ltd did a detailed inspection, took measurements, and gave us a competitive quote with full details of how the job would work, phased payment schedule etc. (including final instalment payable after job completion). All communications with the company were very friendly, timely and professional, and our work was completed beautifully to the agreed schedule and on budget. With very old and dried-out plasterwork around our old window, I appreciated Melvyn pointing out in advance that some extra plastering repair work MIGHT be needed once the job was complete. In fact, the friendly fitting team worked really hard all day on our job, and they managed to leave the surrounding wall - and the room itself - in a near-perfect state. Thanks to Roland and his colleague for the care they took. I was extremely pleased with this job and would definitely use London Sash Windows & Doors Ltd again.
Customer in Greater London Posted on 01/08/2023 , work completed 17/07/2023
Double Glazed Heritage Sash Windows Replacement
Customer Service
Quality
Value
I wanted to upgrade my old sash windows to double glazed. I live in a conservation area so was forced to only consider wooden sash windows. I chose LSW&B after getting a few quotes. They were one of the only companies that could fit double glazed sashes to existing frames. I chose them as the other quotes that I received were for whole new frames and were more expensive, would require more extensive work, plus would not be as slim as the replacement sashes from this company. After their survey, I contacted my local Council and was told I needed planning permission. The surveyor, Melvyn, from LSW&B helped provide drawings for the planning application in a timely fashion. Melvyn re-visited for a detailed survey once I'd obtained planning permission, and updated the quote. He held the prices from the original quote despite the 30 days having expired. The new sashes are simply stunning and the whole window now looks amazing. The team refurbished the existing box frames and double-primed all the wood, so it is weather proof until I can get it painted with a gloss finish. The sashes themselves are fully painted. Harry and the installation team were really professional, skilled, and courteous. They went the extra mile with protection of our property and with cleaning, which are areas where a lot of contractors have let us down in the past. We are also absolutely delighted with the quality of the new windows and wouldn't hesitate to recommend them.
Customer in Greater London Posted on 04/07/2023 , work completed 03/07/2023