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Advanced Glazing Systems Ltd

4.9

362 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
See customer reviews & leave a review

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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

My work

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
362 reviews
Customer Service
5.0
Quality
4.9
Value
4.8
Recommended

Recommended

by 100% of customers
Sort by
Replacement doors and windows
Customer Service
Quality
Value
AGS replaced my front and back external doors(2) and windows front and back downstairs and upstairs(4). Prompt informative survey without the hard sell of others and they gave me time to consider their quote v others, who were not so patient. Not only was their product rated highly elsewhere but their price was best too. No brainer! Installation within 3 weeks. They turned up on time, hardly stopped working for 3 days and left no mess. I am delighted by my doors and windows and thoroughly recommend them. I want a conservatory now and they will certainly be invited to quote.
Customer in Thurrock Posted on 13/11/2020 , work completed 25/10/2019
Recommended
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
Excellent service from a very professional company.
Customer Service
Quality
Value
AGS replaced my windows and doors. The fitters were punctual, completed the work to a high standard left having tidied up afterward. Pleased with the product and service. There were a couple of small issues, which they returned to fix without any fuss. Very impressed with AGS and have already recommended them to a friend and would use them again.
Mark in Essex Posted on 07/06/2021 , work completed 23/04/2021
Recommended
The trader replied (on 04/10/2021)
Thank you for your kind review
Professional service from start to finish
Customer Service
Quality
Value
This is the second time we have used this company as we had such a positive experience before. We had new windows installed to back of the house. All questions were answered, nothing was too much trouble. The windows were installed promptly and professionally and our property was left clean and tidy. So pleased with the quality of the new windows and the look. We would definitely recommend this company 100%.
Marie in Greater London Posted on 19/07/2021 , work completed 22/06/2021
Recommended
The trader replied (on 04/10/2021)
Thank you for your kind review
Wish every job ran this smoothly!
Customer Service
Quality
Value
From start to finish everything was as promised. Survivor came on time, fitters came on time, job finished. The workmen were polite, tidy and got on with the work. John was an excellent initial contact, answering my questions immediately. It was a pleasure doing business with this company
Customer in Greater London Posted on 27/01/2022 , work completed 25/01/2022
Recommended
The trader replied (on 13/06/2023)
Thank you for your kind review
Excellent experience
Customer Service
Quality
Value
I've had to deal with a lot of companies in the last few months and AGS have been one of the best. A terrific experience from the beginning to the end. I would recommend them very much if you need a new front door.
Customer in Greater London Posted on 11/02/2022 , work completed 11/02/2022
Recommended
The trader replied (on 13/06/2023)
Thank you for your kind review
Fabulous work & service
Customer Service
Quality
Value
Very happy to recommend AGS. The quality of their manufacture and installation is top notch, and their after-sales service is fantastic. We had a couple of things that needed repairing several years after installation, and they sorted everything out, under warrantee, free of charge, without fuss and with prompt and friendly service. Definitely would use them again.
Customer in Greater London Posted on 26/03/2024 , work completed 07/03/2024
Recommended
The trader replied (on 05/04/2024)
Thank you for your kind review.
Front room/main bedroom - new windows installed
Customer Service
Quality
Value
We were warmly recommended by various other members of our family to AGS and were more than satisfied. An old established family concern, very well run with seasoned professionals who did a perfect job( nice people as well which always helps). No hesitation in recommending them to others.
Customer in Greater London Posted on 25/11/2024 , work completed 21/11/2024
Recommended
The trader replied (on 10/04/2025)
Thank you for your kind review
New door installations
Customer Service
Quality
Value
I reached out to 6 door manufacturers and Tyler from AGS contacted me the next day. He came and showed us exactly what we wanted with samples and pictures etc. we had other quotes but AGS beat them all. I didn’t choose them for the price but the detail of Tyler’s visit to the accuracy of the new door being centered when it was originally offset. The door has now been installed and looks better than we expected and we are glad we chose AGS. The aftercare is excellent from Simone who constantly checked if we were happy with things even to the point of payment. Well done A+ service.
Customer in Greater London Posted on 05/12/2024 , work completed 02/12/2024
Recommended
The trader replied (on 10/04/2025)
Thank you for your kind review
Great Service and Quality Work
Customer Service
Quality
Value
Exceptional and helpful salesman, not pushy , no pressure Experienced and competent fitter. Pleasant and helpful staff, always available. Work done to the agreed time and budget. No negatives, would highly recommend.
Customer in Greater London Posted on 14/05/2024 , work completed 09/05/2024
Recommended
The trader replied (on 16/05/2024)
Thank you for your kind review.
Excellent service
Customer Service
Quality
Value
We received a prompt and efficient service. We had excellent communication from the AGS team throughout , with reliable delivery and fitting of good quality windows
Customer in Greater London Posted on 19/03/2025 , work completed 13/03/2025
Recommended
The trader replied (on 10/04/2025)
Thank you for your kind review
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Mon–Fri: 9:00–17:00
Standard network rate.