Rated 4.87 / 5
805 Reviews
Rated 9.92 / 10
672 Reviews
Rated 4.9 / 5
357 Reviews
Rated 4.9 / 5
68 Reviews
Rated 4.87 / 5
805 Reviews
Rated 9.92 / 10
672 Reviews
Rated 4.9 / 5
357 Reviews
Rated 4.9 / 5
68 Reviews
The GGF monitors the performance of member companies to ensure the highest industry standards in products and installations. By choosing a GGF member, you can be confident you're getting top-tier home improvements that meet the highest standards of quality.
Secured by Design is an official UK Police initiative promoting security standards for a wide range of products. It’s designed to reduce the risk of intruders and increase homeowners' peace of mind. AGS proudly holds the optional SBD accreditation for our windows and doors, including uPVC, composite, and aluminium options, ensuring your home improvements meet both security and energy efficiency standards.
FENSA works with thousands of double glazing contractors across Essex and beyond. Choosing a FENSA-registered company ensures consumers receive greater protection when purchasing double glazing for their homes, such as energy-efficient windows, which are perfect for maintaining a comfortable temperature and reducing heating bills.
TGAS offers a simple, hassle-free way to resolve disputes with traders over the supply and/or installation of conservatories, orangeries, sash windows, roofline products, and other home improvement solutions. This service ensures that all parties adhere to the highest standards of quality, giving customers peace of mind during the installation process.
MyGlazing helps homeowners make the right choice for their glass and glazing needs by connecting them with local GGF Member companies. These businesses are known for recommending energy-efficient products, such as double glazing, and adhering to the highest industry standards in window frames, conservatories, and orangeries, giving you all the benefits of choosing reputable installers.
Founded in 1881, CTSI represents trading standards professionals working across the UK and internationally. It ensures that tradespeople, including those in the glazing and home improvement industries, follow best practices and offer products that meet the highest industry standards, from sash windows to aluminium folding doors.
Consumers know that the TrustMark logo signifies this business has made a commitment to customer service and good trading practices, and that they have had the technical competence of their work inspected to ensure consistent excellence, and adherence to standards.
Advanced Glazing Systems is proud to hold BFRC accreditation, the UK’s most trusted rating for energy-efficient windows and doors. This certification ensures our glazing products meet the highest standards for thermal performance, helping customers reduce energy bills while improving comfort and sustainability in their homes or commercial properties.
See why homeowners trust Advanced Glazing Systems. Don’t just take it from us, discover real experiences from our happy customers!
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.
Mary Magee
Via Trusted Trader
Great service from Start to finish. After looking around for a while I made the great decision and chose AGS. From the start Tyler was...
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Sam Gleeson
Via Google
We received a prompt and efficient service. We had excellent communication from the AGS team throughout , with reliable delivery and fitting of good quality...
Read more
Customer in Greater London
Via Which?
Brilliant Company. Andy’s communication and response to any queries was excellent. Quality of work is great with affordable pricing. I can recommend them to anyone...
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Raghu Kota
Via Trusted Trader
Advanced Glazing Systems Ltd have provided and outstanding service from start to finish. The door they've provided is great quality and the installation has been...
Read more
Verified Reviewer
Via Trusted Trader
AGS were very friendly and professional from the initial contact for a quote, the appointment for measuring the window and final fitting. Everyone I had...
Read more
K Louch
Via Checkatrade
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.
Mary Magee
Via Trusted Trader
Great service from Start to finish.
After looking around for a while I made the great decision and chose AGS.
From the start Tyler was very professional and helpful on the phone, he sent me pictures by email of doors in the colours I was thinking about and also pictures of the fixtures and fittings so I could compare colours.
Tyler was very communicative throughout the whole process. On the day of installation the fitter was punctual and polite and clearly knew his stuff, door is working a dream. Especially happy with the making good and how he installed the trim, such a clean and tidy finish.
Sam Gleeson
Via Google
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
Via Which?
Brilliant Company. Andy’s communication and response to any queries was excellent. Quality of work is great with affordable pricing. I can recommend them to anyone considering fitting double glazing.
Raghu Kota
Via Trusted Trader
Advanced Glazing Systems Ltd have provided and outstanding service from start to finish. The door they’ve provided is great quality and the installation has been done to a high standard. Customer service has been top tier throughout and I wouldn’t hesitate to recommend them to others.
Verified Reviewer
Via Trusted Trader
AGS were very friendly and professional from the initial contact for a quote, the appointment for measuring the window and final fitting. Everyone I had dealings with were so helpful and I was kept informed throughout. I would 100% recommend AGS to anyone that needs work doing.
K Louch
Via Checkatrade
We provide completely free, no-obligation quotes for every installation project—whether it’s a small home improvement or a large-scale renovation!
