Endorsed by Which?

Advanced Glazing Systems Ltd

4.9

342 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.

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
342 reviews
Customer Service
5.0
Quality
4.9
Value
4.8
Sort by
Design and Installation of new Front Door
Customer Service
Quality
Value
From the very first contact with AGS to the installation the level of service has been outstanding. I don't like recommending companies to people usually through fear of others not having the same experience and it then reflecting badly on me but I have no concerns of that with AGS. I'm so pleased with their service and products I will be using them for the bi folds and roof lights on my proposed extension. It's the attention to detail and anything to help attitude that makes the real difference, backed up with great products. Really impressed.
Customer in Essex Posted on 06/02/2024 , work completed 05/02/2024
The trader replied (on 13/02/2024)
Thank you for your review
Very Pleased
Customer Service
Quality
Value
A b s installer visited me today to fit new composite front door and frame, arrived on time in fact he was early got on with job worked solidly until job was finished, polite tidy and completed a very good job, i'm very satisfied that i chose abs they did a very good job
Customer in Greater London Posted on 06/02/2024 , work completed 24/02/2006
Front Composite Door and Side Lights
Customer Service
Quality
Value
Have now used Advanced Glazing for a few years.Would give them more than 5* if it was possible,great staff,from office,sales surveyor to fitter.The job always gets done to a top spec,Can not fault one bit.Would highly recommend Advance Glazing as everything from start to finish was 100% perfection.Whatever your requirements they can assist and get the Job done.Thankyou Advance Glazing for the great work you've done on our properties.
Customer in Greater London Posted on 25/01/2024 , work completed 22/01/2024
The trader replied (on 13/02/2024)
Thank you for your review
Patient, Fast, and Professional
Customer Service
Quality
Value
AGS patiently waiting and supported for several months while I painstakingly got planning permission to replace my windows (due to an edge case in planning law). They then respected their original quote, and installed my windows within a few months. This included having the scaffolding up and down in a week, to avoid antagonising the ground floor flat, as well as allowing my builder access to the scaffolding to drill an external hole. The windows were smart and energy efficient, with a couple of minor issues that were quickly addressed.
Customer in Greater London Posted on 17/12/2023 , work completed 13/12/2023
The trader replied (on 13/02/2024)
Thank you for your review.
One word describes my dealings with AGS, EXCELLENT
Customer Service
Quality
Value
First contact: Phones are answered promptly by polite, efficient, knowledgable members of staff. I found their prices very competitive. The products are good quality. The surveyor and fitter did an excellent job, making good all areas and even vacuuming up the small amount of mess, 1st class.
Customer in Greater London Posted on 11/12/2023 , work completed 08/12/2023
The trader replied (on 14/12/2023)
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.
New Lantern (inc. new roof), Bifolds, Windows, Front, Porch and Side Doors
Customer Service
Quality
Value
We have now used AGS for two separate jobs; Bifold doors, lantern and a few windows were installed 3 years ago, we were then happy to use AGS again two years later to install new windows in three bays and a few other windows. The majority of windows and doors were installed with internal blinds. On both occasions, the installers worked efficiently and skilfully and tidied up after they finished. For both jobs AGS were very professional and friendly, they kept appointments and never let us down. A year or so after installation there was a small issue that AGS had to be contacted for, they attended the following day to address the problem with no fuss. I thought it best to wait a while after installation to leave this review to see how the product and AGS performed. As you can probably tell from my comments, we are very happy with both and have recommended to a few friends and colleagues.
Customer in Greater London Posted on 22/09/2023 , work completed 20/08/2020
The trader replied (on 26/09/2023)
Thank you for taking the time to leave us such a thorough review. We are glad you hear you are happy with everything. Thanks again.
They were true to their word.
Customer Service
Quality
Value
I required 9 windows and 2 doors to be replaced. The initial visit to quote, was non pressurised, yet informative. The work was completed in a timely manner, and the finished product was very good, and at the agreed price. The installation over 2 days entailed concern to minimise the effects on myself, and ensuring things were cleared and cleaned prior to departure. Post installation, their maintenance booklet is very useful.
Customer in Posted on 28/07/2023 , work completed 27/07/2023
The trader replied (on 26/09/2023)
Thank you for taking the time to leave us a review, we are so pleased that you are happy with the service that you received. Thanks again.
Great experience throughout entire process
Customer Service
Quality
Value
I would highly recommend Advanced Glazing to anyone. From the first call to get a quote, to the survey and finally to the fitting and payment/accounts, everyone I dealt with were personable, friendly, professional and courteous. And the final job was done to a high standard - they even left the house pretty spotless, which is always a bonus. They were also very competitively priced and felt much better going to an independent, family business.
Customer in Greater London Posted on 26/06/2023 , work completed 15/05/2023
The trader replied (on 26/09/2023)
Thank you for taking the time to leave us a review, we are so pleased you are happy with our team and the service that you received. Thanks again.
Fantastic Company & Fantastic Products!!!
Customer Service
Quality
Value
Dealing with AGS is a dream! They are friendly, polite & efficient in every aspect. The quality of the service is matched at least by the high quality of the work they do & of the products that they have installed for us. We are 100% satisfied with all of our new Doors, Windows & Porch! Thank You AGS!!!
Customer in Greater London Posted on 13/06/2023 , work completed 08/04/2023
The trader replied (on 13/06/2023)
Thank you for your kind review