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
My Review
Customer Service
Quality
Value
Excellent service - prompt and professional from start to finish. Would recommend AGS to all friends and family.
Richard, Essex Posted on 04/04/2016 , work completed 04/04/2016
Excellent job
Customer Service
Quality
Value
Excellent job, very efficient. Highly recommend. Will use again.
Which? Trusted Traders Consumer Posted on 25/07/2016 , work completed 25/07/2016
My Review
Customer Service
Quality
Value
A good product, a good job & a reasonable price. Work completed in one day & all rubbish removed. A very satisfied customer.
Which? Trusted Traders Consumer Posted on 08/07/2016 , work completed 08/07/2016
My Review
Customer Service
Quality
Value
First class
Which? Trusted Traders Consumer Posted on 29/06/2016 , work completed 29/06/2016
Great company
Customer Service
Quality
Value
AGS supplied and fitted windows, door and patio doors for our extension. We have used them before and both times found the service and quality to be very good indeed. They are a family company and really care about what they do.
Ken, Hertfordshire Posted on 25/07/2016 , work completed 25/07/2016
Great company - Beautiful windows
Customer Service
Quality
Value
Very professional Window Company. Their windows are a very high standard. I had my old sash windows replaced, and they look amazing - so pleased with them.
Happy Customer Posted on 05/09/2016 , work completed 05/09/2016
Excellent job
Customer Service
Quality
Value
AGS were professional from start to finish. They replaced all the doors and windows in our house and we are thrilled with the results. Would not hesitate to recommend them.
Julia, Essex Posted on 26/08/2016 , work completed 26/08/2016
Excellent Job
Customer Service
Quality
Value
AGS Ltd was recommended to us and we could se why. Andy visited to explain the options for full double glazing replacement, gave us a quote with no pressure to buy then arranged a date of installation before he left. Job completed on time. Very professional and very pleased with result. Highly recommended.
Martin, Essex Posted on 14/09/2016 , work completed 14/09/2016
Patio doors
Customer Service
Quality
Value
Recently had patio doors fitted by AGS and overall very pleased with the installation. The doors were of excellent quality and the fitters did a great job considering a 1st floor flat which made it awkward. They were very clean and tidy throughout and I would recommend AGS to friends and family. A great price.
Mr Mountford Posted on 26/09/2016 , work completed 26/09/2016
Brilliant job
Customer Service
Quality
Value
Professional, hard working team. Very pleased with completed work.
Kelly, Essex Posted on 27/02/2017 , work completed 27/02/2017
Prompt and professional.
Customer Service
Quality
Value
Couldn't have asked for a better service. Friendly and professional and completed the job with absolute minimum inconvenience.
Which? Trusted Traders Consumer Posted on 15/12/2016 , work completed 15/12/2016
Polite and efficient
Customer Service
Quality
Value
Quotation visit was polite, friendly and reassuring. The 2 men who carried out the work were polite and extremely hard working. Tidied up well too. Thank you. We are very happy with our new windows.
Which? Trusted Traders Consumer Posted on 12/01/2017 , work completed 12/01/2017
Excellent service and professional job
Customer Service
Quality
Value
We have used AGS twice to fit a front door & side panel (June 2016) and a year earlier to fit five windows, including a bay window. Excellent service and very refreshing to not be pushed into a decision immediately (I have found other double glazing salesmen very pushy). John is very easy to talk to and incredibly helpful. We are very happy with our windows & door and would use AGS again.
Kathryn, Essex Posted on 29/06/2016 , work completed 29/06/2016
Excellent service
Customer Service
Quality
Value
From fitting to after sales service can only give top rating to all involved really pleased.
Colin, Kent Posted on 03/03/2017 , work completed 03/03/2017
Excellent service and product.
Customer Service
Quality
Value
Before and after sales excellent. Product tailored to our needs, windows great quality and price.
Happy Customer Posted on 09/03/2017 , work completed 09/03/2017
Excellent service
Customer Service
Quality
Value
Quick, efficient and friendly. Excellent job.
Vikki, London Posted on 29/03/2017 , work completed 29/03/2017
Brilliant experience of AGS - highly recommended
Customer Service
Quality
Value
We wouldn't hesitate to use AGS in the future, or recommend them. They were quick to reply to our initial enquiry and Andy came to give us a quote the next evening. Andy helped us work out a solution for our back door using an aluminium frame with a single pane of glass. The job was completed to a very high standard within 2 weeks. Honest, reliable, great value and a lovely team - thank you all at AGS.
alicekmuir Posted on 16/04/2017 , work completed 16/04/2017
Outstanding service
Customer Service
Quality
Value
I cannot rate this company high enough - brilliant service yet again. Outstanding from start to finish. Windows and doors are beautiful. Should I need to use them in the future if I move home, I will be using them again. I've recommended them to all my family.
Carol, Essex Posted on 02/05/2017 , work completed 02/05/2017
Prompt and professional.
Customer Service
Quality
Value
Totally professional and very efficient from start to finish. A pleasure to deal with. We had 5 new windows fitted.
Which? Trusted Traders Consumer Posted on 12/05/2017 , work completed 12/05/2017
Wonderful!
Customer Service
Quality
Value
That rare thing - complete customer satisfaction! Hugely pleased with the new windows but also the professional service in choosing and the brilliant installation team. Thanks John, Gavin & Steve.
Judith, Essex Posted on 24/04/2017 , work completed 24/04/2017
Thoroughly recommend!!
Customer Service
Quality
Value
First to send quote back. Very competitive price. Very professional and friendly. Would recommend, very impressed.
Which? Trusted Traders Consumer Posted on 26/06/2017 , work completed 26/06/2017
Excellent
Customer Service
Quality
Value
Excellent, start to finish.
Which? Trusted Traders Consumer Posted on 28/04/2017 , work completed 28/04/2017
Very pleased.
Customer Service
Quality
Value
Great service from start to finish. Andy was very helpful with lots of suggestions and his price was very competitive. Peter the surveyor was also helpful. Mark and Jordan were very fast and did an excellent job. They were also very good in cleaning up after themselves. Very pleased with the result and would have no hesitation in recommending them.
June Rovai Posted on 23/08/2017 , work completed 23/08/2017
Excellent Work, Very Professional
Customer Service
Quality
Value
From the first call through to the work being completed, AGS were incredibly professional. The workmen were courteous, tidy and professional. The finished products are great.
Mabel, Essex Posted on 08/08/2017 , work completed 08/08/2017
Very highly recommended.
Customer Service
Quality
Value
Everyone involved in this project (the installation of full double-glazing) was reliable, punctual, efficient, friendly and fully responsive to our needs. In addition to the standard units, John sourced a stunning decorative arched window, at a very reasonable price. Recommended without reservation.
Sheila, London Posted on 14/08/2017 , work completed 14/08/2017