Bespoke Sealed Double-Glazed Units Made Just for You
At Advance Glass, we make high-quality sealed double-glazed or triple-glazed units tailored to your exact needs. Whether you’re replacing a single unit at home or managing a full refurbishment project, we’re here to make the process simple, reliable, and stress-free.
Everything we produce is made to a high standard, carefully checked, and built to last.
Why Choose Advance Glass?
Built to BS1279 Standards
All our sealed units are manufactured to BS1279, so you can be confident they meet industry requirements for quality and performance.
Checked Before They Leave Us
Every unit is inspected and comes with written confirmation that it’s passed our quality checks.
Energy-Efficient by Design
Our units can achieve U-values as low as 1.1, helping you meet A-rated energy standards and keep heat where it belongs.
Guarantees You Can Trust
We offer 5- or 10-year guarantees, depending on the drainage system used — for total peace of mind.
Triple-Glazing Available
Looking for even better insulation or noise reduction? We also manufacture high-performance triple-glazed units.
Getting Your Perfect Sealed Unit Is Easy
Get in Touch
Give us a call or send us a email and tell us about your project — from a single replacement unit to a large commercial order.
Choose the Right Glass
We’ll help you select the best option for your needs:
Standard glass
Toughened or laminated glass for added safety and security
Decorative and specialist glass for something a little different
Customise Your Unit
We’ll work through all the details with you, including:
Double or triple glazing
Slim Line Sash Units
Sizes, styles, and performance requirements
Air gap sizes available:
6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, and 20mm
Spacer bar colours:
Sliver as standard , Bronze, white, warm edge spacer also avaliable
Decorative styles:
Georgian bars, Leaded designs, or our Duplex bars
Quick, No-Obligation Quote
Once we have the details, we’ll send you a competitive quote — no pressure, no obligation.
We provide quotes for windows, doors, and selected custom projects.
Made, Delivered & Fitted
After you approve the quote, we’ll manufacture your units to the highest standards.
You can:
Collect your order
Arrange delivery at a competitive rate
Choose our professional fitting service if you’d like us to handle everything
Ongoing Support & Guarantees
All units come with a 5- 10-year guarantee, and our team is always on hand if you need advice or support.
Get in touch with Advance Glass today and let’s create the perfect sealed units for your project.
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