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Endorsed by Which?
Advanced Glazing Systems Ltd
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
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
369 reviews
Recommended
Recommended
by 100% of customers
Sort by
Quality front porch & window replacement, good value, great service
Customer Service
Quality
Value
I contacted John after my front porch door had been burgled, realizing old porch needed replacement ASAP to be made safe. I got same day design, quote and the nearest installation date possible given parts are custom made. The team arrived on time, were really nice, worked hard and finished everything to very high quality, leaving everything clean and tidy. The team then returned after 2 weeks to also replace the kitchen window - which was not that urgent. I like the look of the new porch and feel much safer now at home - thanks so much John, Julie and the team for a job well done at a time that I really needed it.
Customer in Greater London
, work completed
Recommended
Highly recommended (Replacement gutters and windows)
Customer Service
Quality
Value
We had replacement gutters, fascia and windows fitted for our 1920's semi-detached house which has bay windows. The contract was part fulfilled prior to the COVID19 lock-down but some of the work had to wait a few weeks. AGS kept us up-to-date through the process. All work has now been completed to a high standard. We're very happy customers. Dealing with AGS has been a pleasure throughout the process. From initial visit (no hard sales pitch and their quote was quite competitive); to survey/measurements (where they proactively sought to resolve issues) to arranging scaffolding (being flexible with the dates )... the office were very efficient. For the fitting...One team was used for the gutters/fascia and another for the windows. Both teams worked efficiently and were very tidy - keen to make everything "just right". We highly recommend AGS.
Customer in Greater London
, work completed
Recommended
Quality double glazing
Customer Service
Quality
Value
2 large windows and door installed. This is the second time I have chosen AGS for double glazing. Their quotes are competitive and their Installation team are professional, efficient, polite and tidy I am satisfied with the results and would recommend them.
Customer in Greater London
, work completed
Recommended
French doors
Customer Service
Quality
Value
Excellent workmanship. Clean and tidy installation. Good value for money.
Which? Trusted Traders Consumer
, work completed
Recommended
Excellent work
Customer Service
Quality
Value
AGS were replacing windows in a nearby house and I was impressed with the work, so decided to contact them to get a quote for replacing the windows in the two front rooms of my 1st floor maisonette. I telephoned the company and the fitters working on the nearby house came the same day to measure the windows. I received a call from AGS the following day, followed a little later by a further call with a quote which was well below what I thought I would need to spend on the work. Two fitters arrived at 8.30 a.m. on the chosen date and the work was completed by midday. Everything was left clean and tidy and there was no damage whatsoever to the existing windowsill paintwork. The two fitters didn't even take a tea break when tea was offered! I am delighted with the windows, which add greatly to the appearance of my maisonette.
Customer in Greater London
, work completed
Recommended
Excellent service
Customer Service
Quality
Value
We were very pleased with the service received from Advance Glazing Systems. The fitters were very hard working, polite and helpful. They did a reasonable job of cleaning up afterwards and we were surprised that so little touching up was required by us after the windows and door were fitted. The office were very helpful when we requested a slight amendment to our order and they did everything they could to accommodate us.
Customer in Greater London
, work completed
Recommended
Top class double glazing!
Customer Service
Quality
Value
I used Advanced Glazing Systems to supply and fit a double glazed side door. They were professional from start to finish and did a fantastic job, and very reasonably priced. Having used another local company on previous occasions I wished I had know about AGS before as they were far more trustworthy, helpful and knowledgeable! I would certainly recommend them!
Customer in Essex
, work completed
Recommended
Great job
Customer Service
Quality
Value
Friendly, efficient, professional and great value, no complaints!
Which? Trusted Traders Consumer
, work completed
Recommended
Excellent job. Very professional
Customer Service
Quality
Value
Replaced windows. Quick installation and good service.
Which? Trusted Traders Consumer
, work completed
Recommended
First class professional
Customer Service
Quality
Value
Full consultation including bay window, front & back door & 8 windows. Very professional, clean, polite, good time keeping couldn't praise them enough.
Coneilious, London
, work completed
Recommended
My review
Customer Service
Quality
Value
Excellent quality, service and products
Andrew, London
, work completed
Recommended
Excellent service.
Customer Service
Quality
Value
AGS Windows were professional, efficient, and courteous. They offer good value for money and I would not hesitate to recommend the company.
Kay, Essex
, work completed
Recommended
Stress free experience
Customer Service
Quality
Value
From the moment of the quote to the finished installation. AGS were brilliant. No hassle, no worries, no problem. Even though it was snowing they turned up on time, did a fantastic job and finished on schedule. Excellent company, highly recommended.
Paul, Essex
, work completed
Recommended
My review
Customer Service
Quality
Value
AGS were truly professional, they have supplied & fitted a large roof lantern & bifold door & I am so happy!
Which? Trusted Traders Consumer
, work completed
Recommended
Very Good Service
Customer Service
Quality
Value
From start to finish was a great service and fitters were very customer friendly.
Karen, Essex
, work completed
Recommended
My review
Customer Service
Quality
Value
Excellent Work.
Which? Trusted Traders Consumer
, work completed
Recommended
First class
Customer Service
Quality
Value
Replacement windows. From first meeting to pane replacement (mark on glass), the service was first class.
Roger, Kent
, work completed
Recommended
Bedroom windows
Customer Service
Quality
Value
Excellent service from start to finish, would recommend, polite and helpful staff , office , manager and fitters. In fact have spoken to Andy again regarding some further work. Very satisfied.
Wayne in Hertfordshire
, work completed
Recommended
Patio and french doors
Customer Service
Quality
Value
As with our previous project on which AGS worked, the whole team was efficient, friendly and helpful. Highly recommended.
Customer in Greater London
, work completed
Recommended
very happy customer
Customer Service
Quality
Value
i used AGS last year to renovate my porch and was very impressed with the team, the price and the workmanship, therefore i have just used them again to replace all the window glass throughout my bungalow. I would and have highly recommended this company to others.
Customer in Greater London
, work completed
Recommended
Excellent After Sales Service
Customer Service
Quality
Value
When AGS say 10 Year Fully Comprehensive Warranty they mean it! After six years we have had a little issue with one glass unit and within two weeks a replacement was ordered and fitted!! Very efficient. Thank you AGS. Would definitely recommend.
Customer in
, work completed
Recommended
Double Glazing Installation
Customer Service
Quality
Value
Replacement of all windows for my rental property, with a total of 9 windows. An extremely professional firm, an amazing install, and a pleasure to deal with from measuring to fitting. All the work was completed in only 2 days, wherein other firms were quoting much longer timelines. My property looks amazing after the instal and was left completely tidy. Will definitely use again when needed 100% and very highly recommend. Thank you AGS Team! 🙂
Customer in Thurrock
, work completed
Recommended