About us
Precision, consistency, and a name that installers trust.
Advanced Sealed Units Ltd manufactures and supplies insulated glass sealed units to contractors and glaziers across the UK. Established in 2009, with over 17 years of experience — consistently, quality, and to the standard the industry expects.
Our story
We started in 2009 with a simple aim: build a sealed-unit line that installers could rely on — accurate sizes, consistent glass, and delivery dates that hold.
Over seventeen years on we still manufacture from Hatfield, Hertfordshire, on production lines audited annually by the British Standards Institution against BS EN 1279.
Most of our work is direct-to-trade: repeat contractors and glaziers with account-negotiated pricing, who order via email or EDI. Order progress and status can be monitored via our trade portal.
What that means for you
- Independently audited quality process (BS EN 1279).
- Full sealed-unit range — double, triple, argon, krypton, silicone.
- Toughened, laminated, low-iron, self-clean and shaped units.
- Georgian bar, duplex, leaded and stepped units.
- Live trade portal with per-account pricing.
- Clear delivery dates and order tracking.