Endorsed by Which?

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

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
362 reviews
Customer Service
5.0
Quality
4.9
Value
4.8
Sort by
Front door installation
Customer Service
Quality
Value
Very pleasant and professional company to deal with from the ordering process choosing the door right through to installation of the door.
Customer in Thurrock Posted on 23/02/2021 , work completed 10/02/2021
The trader replied (on 29/04/2021)
Thank you for your kind review.
My Review
Customer Service
Quality
Value
Professional job
Martin, Essex Posted on 23/02/2015 , work completed 23/02/2015
Job well done
Customer Service
Quality
Value
Very pleased with my new kitchen windows and stable back door. 2nd time I have used this company. Professional workman.
Which? Trusted Traders Consumer Posted on 10/06/2016 , work completed 10/06/2016
My review
Customer Service
Quality
Value
Time of visiting my house to windows & doors being fitted was 10 days. So happy. Thank you.
Margaret, Essex Posted on 07/03/2017 , work completed 07/03/2017
Excellent
Customer Service
Quality
Value
Very helpful in the planning stages; the work was carried out efficiently, to cost and to a high standard. Recommended
Howard, London Posted on 30/11/2016 , work completed 30/11/2016
Brilliant job!!
Customer Service
Quality
Value
Brilliant professional job, really pleased. Would highly recommend!
Which? Trusted Traders Consumer Posted on 31/05/2018 , work completed 31/05/2018
Brilliant job
Customer Service
Quality
Value
From first visit to job completed, the company was professional and attentive. Had seen their work at a neighbours who fully recommended them as I do too.
Susan, London Posted on 24/07/2018 , work completed 24/07/2018
Excellent workmanship and customer service from AGS (new windows in a ground floor flat)
Customer Service
Quality
Value
AGS were excellent from start to finish. My partner and I decided we needed to replace all of the windows (4 windows and a large 3 section bay window) in our flat due to the poor heat and noise insulation. I spoke to John over the phone on a number of occasions and his knowledge and expertise were fantastic. The quote was somewhat pricier than some other like-for-like quotes I had gathered, but with such a large bay window I wanted to ensure the work would be carried out to a very high standard. John answered all of my queries and made me feel confident that AGS were the right people for the job. The installation was completed in a single day, and after completion, it's apparent that you get what you pay for. My partner and I are extremely happy with the quality of the windows and the attention to detail in the finishing that the installers had. We had one minor hiccup where the glass for our bathroom wasn't frosted as requested when the survey was carried out, but this was addressed and sorted immediately by John and Julie. After the new glass had been ordered an installer returned to the property in 2 weeks and fitted it in about 10 minutes. Everyone that I communicated with - John, Peter, Julie, Simone and Ella - were very friendly, polite and professional; providing a fantastic level of customer service that you hope for when spending quite a significant amount of money on a fairly large home improvement. I would highly recommend Advanced Glazing Systems.
Customer in Greater London Posted on 08/04/2022 , work completed 21/03/2022
The trader replied (on 13/06/2023)
Thank you for your kind review
Personal service
Customer Service
Quality
Value
Very prompt & thorough service. Accommodating to all request, big or small. Always available at the end of the phone. Highly satisfied with the work
David, London Posted on 12/01/2015 , work completed 12/01/2015
Very helpful in getting a difficult job done.
Customer Service
Quality
Value
They successfully obtained planning permission for replacement UPVC windows for several flat owners, worked with us & co-ordinated successful installation. The previous contractor has been unable to obtain planning permission. Advanced Gazling Systems went to lots of trouble in helping us.
C, Avon Posted on 30/11/2015 , work completed 30/11/2015