Endorsed by Which?

Advanced Glazing Systems Ltd

4.9

369 Reviews

Opening Hours
Today -
  • 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.

Organisations and Awards

Sep 2019

About

AGS is a family run business specialising in all areas of UPVC and Aluminium Home Improvements.

We are much more than the average double glazing Company and we are confident that you will notice a real difference between AGS and our competitors.

We let our products speak for themselves and our friendly professional staff are more concerned with you receiving the best possible customer service and a high quality product that is right for your home.

AGS are registered with Fensa, The Glazing Ombudsman and the Glass and Glazing Federation, for complete peace of mind that you are dealing with a Company that has your interests at heart.

AGS supply and fit the following product range:

UPVC WINDOWS & DOORS - ENERGY RATED 'A'
ALUMINIUM WINDOWS & DOORS - ENERGY RATED 'A'
UPVC SLIDING SASH WINDOWS - ENERGY RATED 'A'
COMPOSITE DOORS
CONSERVATORIES
BIFOLD AND SLIDING DOORS

To discuss our product range and services further please feel free to contact us.

Andy Barnett

What we do

  • Double glazing

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

    • Double glazing installation
    • Double glazing repair
    • Sash windows
    • Stained glass
    • Replacement window services and repairs
    • Aluminium Windows
    • Double glazed units
    • Triple Glazing
    • UPVC Windows
    • Window consultants
  • Conservatories

    • Conservatory repairs
    • Conservatory maintenance
    • Conservatory Roof replacement
    • Sun Lounge
  • Doors

    • Bi-fold doors
    • Composite doors
    • Front door
    • French doors
    • Patio doors
    • ​Aluminium doors
    • Orangeries
    • UPVC doors
  • Roofers

    • Guttering, fascias and soffits
    • Conservatory roof conversions
    • Tiled conservatory roofs
  • More Services

    • facias

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.

4.9
369 reviews
Customer Service
5.0
Quality
4.9
Value
4.8
Sort by
Highly recommended
Customer Service
Quality
Value
Had used company before at old house. Were just as reliable, knowledgeable. re. options available to me in order to make informed decision & competitively priced. Had window converted to French doors & door converted to window. Respectful workers, high quality and ran per fitting time/date.
Which? Trusted Traders Consumer Posted on 05/03/2018 , work completed 05/03/2018
Prompt and professional
Customer Service
Quality
Value
I am very happy. Quality work done punctually.
Which? Trusted Traders Consumer Posted on 16/02/2018 , work completed 16/02/2018
Professional service
Customer Service
Quality
Value
Very professional from start to finish. Arrived on time, worked efficiently and quickly. Very polite staff. All round decent company.
Keeley, Essex Posted on 01/03/2017 , work completed 01/03/2017
My review
Customer Service
Quality
Value
Excellent workmanship and service.
Karen, Essex Posted on 10/03/2017 , work completed 10/03/2017
My review
Customer Service
Quality
Value
Excellent company.
Which? Trusted Traders Consumer Posted on 28/02/2017 , work completed 28/02/2017
Prompt professional brilliant job.
Customer Service
Quality
Value
On time, courteous, professional, friendly, tidy, well organised, very quick, clean, no problems or concerns, dealt exceedingly well with changes during planning stage and timely.
Alison, London Posted on 23/03/2017 , work completed 23/03/2017
Quality work at decent prices
Customer Service
Quality
Value
Andy and Peter, the surveyor were both a pleasure to work with. Very patient and explained all the costs involved very clearly. The installation was completed in the time stated and they were very clean and tidy.
Lena, London Posted on 07/03/2017 , work completed 07/03/2017
My review
Customer Service
Quality
Value
Very good services at all times.
Peter, Essex Posted on 06/03/2017 , work completed 06/03/2017
Excellent company to deal with
Customer Service
Quality
Value
AGS were totally professional from start to finish. Andy's quote was very competitive and the work completed by Gavin and Steve was first class. Everyone that I dealt with were polite, courteous and punctual and consequently I would have no hesitation in recommending AGS.
Quested Posted on 17/08/2017 , work completed 17/08/2017
Great product, fantastic service
Customer Service
Quality
Value
From estimate to completion of work AGS were friendly, helpful, professional, courteous. Turned up on time, northing was too much trouble. Great product, fantastic service.
Paul, Essex Posted on 10/07/2017 , work completed 10/07/2017
Superb job, very professional
Customer Service
Quality
Value
We wanted to use a local trader, was told to try Advanced Glazing, which we are very glad we did. Very professional in what could have been an awkward installation. Over the moon with the results and will recommend AGS in the future.
Scott, Essex Posted on 10/07/2017 , work completed 10/07/2017
Highly Recommend
Customer Service
Quality
Value
Efficient and Professional from quote through to completion. Installation guys worked hard and overcome problems that occurred with leaky window. Very neat and tidy and a good standard of finishing off/mark up good individually matching pebble dashing.
Carol, Essex Posted on 05/10/2017 , work completed 05/10/2017
Brilliant and Professional Job
Customer Service
Quality
Value
A very professional service from start to finish. The installers were very informative and tidy. Would easily use them again.
Trevor, Essex Posted on 16/10/2017 , work completed 16/10/2017
Professional service
Customer Service
Quality
Value
Professional service, no hesitation in recommending.
Which? Trusted Traders Consumer Posted on 19/05/2018 , work completed 19/05/2018
First class service and first class product
Customer Service
Quality
Value
AGS fitted a pair of folding patio doors. They offer an excellent service and sell what appears to be an excellent product. If we ever save enough for window will use them again.
Aram, Essex Posted on 23/07/2018 , work completed 23/07/2018
Prompt.
Customer Service
Quality
Value
Very good. Very clean. Very tidy.
Susan, Essex Posted on 31/08/2018 , work completed 31/08/2018
Great work
Customer Service
Quality
Value
We have used AGS previously, replacement French doors and a new external door, so we chose to use them again and once again they delivered a great service, from the my initial phone call to completion of the work. Highly recommended, we will be using them again to complete our work at a later date.
Customer in Greater London Posted on 21/01/2020 , work completed 17/01/2020
Conservatory replacement
Customer Service
Quality
Value
We have an old house and the original small conservatory was becoming dilapidated. We decided to replace it with a larger one. We chose Advanced Glazing Systems after careful research and a site visit. The work was carried out by their regular builder, Alan Fernee, of New Space Developments. We are entirely happy with the product and the workmanship involved. Everything was done carefully and with due regard to the disturbance that was inevitable in such a project. We fully recommend both the product and the builder.
John Posted on 11/12/2019 , work completed 02/12/2019
Exceptional Customer Care
Customer Service
Quality
Value
Having used AGS ltd 7 years ago to instal all our windows, french doors and bifold, we were impressed then. One of the bifold window smashed, I contacted AGS as we have a 10 year guarantee. The start of the phonecall having given my name, was "I remember you Mrs L..." I thought nice, but ok good sales pitch, to which they rattled off our names address and phone numbers from the system! We have a common surname. We aren't even local to the company! I was told glazing wasn't covered by insurance but was given a quote within 20 minutes and installation date shortly afterwards. There would have been a delay of up to 8 weeks due to Covid, I explained we are due to move and needed this replaced asap. AGS asked the glaziers for a big favour and we only waited 3 weeks. Window was fitted very swiftly on the agreed date and time. Locking mechanism adjusted by a very polite tradesman. Our only regret, we are moving to a new build and personally will not be requiring their services, but 100% recommend them
Customer in Hertfordshire Posted on 27/10/2020 , work completed 20/10/2020
The trader replied (on 28/01/2021)
Thank you so much for taking the time to leave such a lovely review. It really is much appreciated and we are so glad you are happy with our service. Best wishes Advanced Glazing Systems
Professional and efficient
Customer Service
Quality
Value
Professional, efficient and impressive from the initial visit, through the survey and the completion of the work which was undertaken cheerfully without any fuss. AGS were recommended to us and we would be happy to endorse this to future customers.
Customer in Greater London Posted on 20/05/2021 , work completed 14/04/2021
The trader replied (on 04/10/2021)
Thank you for your kind review
Fitting New Front Door
Customer Service
Quality
Value
I was very pleased with the tradesman named Steve from AGS who fitted my new front door, he did an excellent job!
Customer in Essex Posted on 25/01/2022 , work completed 19/01/2022
The trader replied (on 13/06/2023)
Thank you for your kind review
Bay Windows Front Door
Customer Service
Quality
Value
New Bay windows and Endurance Front door fitted by AGS. The fitters have been amazing, they were very helpful in selecting and recommending ideas. The surveyor was brilliant, worked everything out perfectly. Could not find a fault if I tried. Everything finished to a high standard. They have totally transformed the House . Flush sash windows in white woodgrain with Heritage sills. Definitely worth the extra money, they look like the original windows that would have been fitted when house was built. If everyone had these done the road would look fantastic. So pleased am getting rest of house done. Well done AGS.
Dean in Greater London Posted on 20/01/2022 , work completed 12/01/2022
The trader replied (on 24/01/2022)
Thank you for your review.
Renewal of double glazing
Customer Service
Quality
Value
AGS have just renewed all our windows and doors apart from the front door which we’d had done a couple of years ago. We would definitely recommend AGS. Andy’s quote was straightforward with no messing about and didn’t take hours like some companies. Once we’d accepted the quote the surveyor came to measure up, everything was ordered and we very quickly had an installation date. The installation team arrived early on the planned day and worked hard. The job was finished in three days as promised at the beginning even though three panes of glass had broken at the depot - these were ordered and arrived in time to be installed without the job being delayed. The team were friendly, worked hard and cleared up very well each day. We were impressed with the attention to detail given to the job.
Sally in Greater London Posted on 20/04/2022 , work completed 13/04/2022
The trader replied (on 13/06/2023)
Thank you for your kind review
Kitchen door and side windows with new double glazed unit
AGS fitted about 8 years ago 3 double glazed windows in my flat and as I recently wanted to replace a kitchen door and side windows with new double glazed unit in my house, I remembered the quality of the work that had been done in my flat and thought I would contact AGS for a quote. The entire process was truly seamless with a market value quotation and very good quality double glazing materials. The fitting was excellent and we are all very happy with the new unit at home. This is a team of people ( a family business) that work extremely well in terms of communication, punctuality, competence and experience. You will not be disappointed if you book AGS to improve your residence.
Customer in Greater London Posted on 22/03/2022 (Reviewer did not use service)
The trader replied (on 13/06/2023)
Thank you for your kind review
Quality Service from a Professional Family Business
Customer Service
Quality
Value
The replacement UPVC double glazing units for the front and back of our house totalled 11 units, including porch doors, flat and bay windows, and a back door. The work was completed in 5 days by Carl and Jordan, who work well together, and were professional in ensuring a quality job with the minimum of intrusion. They responded rapidly to an unforeseen problem when taking out one of the old windows. From the commencement of our enquiry to the company, we found the responses from Andy Barnett to be concise and prompt, and in the administration department, Ella was knowledgeable and friendly. A well-run and efficient family business, who put service and quality (at a reasonable price) first, and they are worthy of being a Which Trusted Trader. Thank you and well done. We are pleased to recommend Advanced Glazing Systems.
Customer in Greater London Posted on 28/09/2023 , work completed 15/09/2023
The trader replied (on 02/10/2023)
Thank you for your kind review.