Aluminium Windows
- Slim, modern window frames
- Thermally efficient design
- Available in any RAL colour
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
Bay & Bow Windows
- Stylish outward projection for more space and extra light
- Available in uPVC or aluminium materials
- Highly energy-efficient with A-rated glazing
Casement Windows
- Secure and energy-efficient designs
- Available in uPVC and aluminium
- Perfect for traditional homes and modern spaces
Double Glazing
- A Rated as Standard
- High Sound Insulation (31dB)
- Available in Multiple Materials & Styles
Flush Casement Windows
- Sash sits level with the frame for a clean, minimalist look
- Available in durable uPVC for strength and longevity
- Wide selection of stunning woodgrain effects and colours to choose from
Heritage Windows
- Aluminium frames provide a heritage finish
- Thermal A-Rated Glass as standard
- Range of RAL colours available
Integral Blinds
- Fits between the panes of glass in double glazing
- No cords – safe for young children
- Manual or motorised control options
uPVC Sliding Sash Windows
- Made from durable and customisable uPVC materials.
- High energy efficiency for reduced energy bills.
- Traditional and in-demand aesthetic
Sound Reducing Glass
- Superior sound insulation to reduce noise levels
- Ideal for homes near busy roads, railways, or flight paths
- High-quality, durable glass that also improves security
Tilt and Turn Windows Essex
- Easy to clean
- Dual-opening mechanism
- Energy efficient
Triple Glazing
- A+12 Rated Triple Glazing for Maximum Heat Retention
- Impressive Acoustic Performance for Noise Reduction
- Features Low E Glass for Improved Insulation
uPVC Windows
- Energy-saving performance
- Customisable colours & styles
- An affordable upgrade
Why Choose Advanced Glazing Systems
Trusted by homeowners across Essex and London since 2004, we offer expert installations, honest pricing, and premium products designed to last. We’re proud to be a family-run business offering genuine advice, high-quality craftsmanship, and exceptional customer service from quote to completion.
Family Run Business
10 Year Guarantee
Free Insurance Backed Guarantee
Backed by The GGF
Accredited Levels of Security
Read Customer Reviews
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...
Read more
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
Convenient Video Appointments Available
We offer video appointments for all our services, allowing you to get expert advice from the comfort of your home.
Book your video appointment todayGet in touch for a free quote!
We provide completely free, no-obligation quotes for every installation project—whether it’s a small home improvement or a large-scale renovation!
