Mary Magee
Via Trusted Trader
About me - Andy Barnett
Hi, I’m Andy. I’m the Managing Director at Advanced Glazing Systems, a family business I founded alongside my father John way back in 2004. After working in the industry for over a decade, we saw an opportunity to do things differently, focusing on genuine quality products and honest, straightforward service.
I’ve been working in the double glazing industry since 1993 – that’s over three decades of hands-on experience with some of the largest companies in the sector. Starting AGS was about getting back to basics, in providing customers with high-specification windows, doors, and conservatories at fair prices, backed by the kind of service we’d want to receive ourselves.
My passion for this industry runs deep, particularly when it comes to research and development. I’m constantly exploring new products and innovations because I believe our customers deserve nothing but the best. The glazing market is continuously evolving, and staying ahead of those changes is what sets us apart, and is also why we’ve continued to grow and adapt, no matter the challenges that the last 20 years have posed.
My core areas of expertise include:
I’m proud to hold memberships and accreditations with all the industry’s leading bodies:
These aren’t just badges on our website, they represent our commitment to the highest standards of professionalism, quality, and customer protection. Every single one has been earned through rigorous assessment and ongoing compliance.
What I love most about this role is being able to provide personal advice and ideas tailored to each customer’s unique project. Whether you’re looking for energy-efficient windows, stunning bifold doors, or a beautiful orangery, I draw on my extensive knowledge to ensure you get exactly what’s right for your home and budget.
Customer satisfaction isn’t just a business goal, it’s personal. There’s real pride in helping clients fall back in love with their home and knowing we’ve made a genuine difference. I’m committed to ensuring that from your very first enquiry through to our comprehensive aftercare service, your experience with Advanced Glazing Systems is nothing short of excellent. That’s probably why we achieved 100% customer satisfaction in our recent trustatrader.com survey, something that still makes me smile every time I think about it.
Outside of work, I love socialising with friends and family, exploring new places through travel, and keeping active. You’ll often find me out walking with my dog Bailey – he’s excellent company and a great listener when I’m mulling over new product ideas!
I genuinely believe that life’s too short not to enjoy what you do, and after more than 30 years in this industry, I can honestly say I’m as passionate about glazing today as I was when I started back in 1993.
If you’re considering new windows, doors, or a conservatory, I’d love to hear about your plans. You can reach me directly through Advanced Glazing Systems on 01277 230101 or email me at sales@advancedglazingsystems.co.uk.
You can also connect with me on LinkedIn – I’m always happy to share insights about the latest developments in glazing technology or simply chat about your home improvement ideas.
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.
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...
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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
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.
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...
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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!