Trade double glazed sealed units in Hertfordshire

Ordering double glazed sealed units for jobs in Hertfordshire

Toughened panes in a unit carry a permanent BS EN 12150 mark. Ask if you need units labelled by window number so the installer can match each unit to its frame.

Glass in critical locations, such as doors, side panels and low-level glazing, must break safely, be robust or be protected; in practice that usually means toughened or laminated glass. Mark those units on your schedule.

Specification at a glance

• Spacer colours to match frames
• Aluminium or warm-edge spacer bars
• Toughened, laminated, obscure and acoustic glass options
• Manufactured to BS EN 1279
• Low-E coated inner pane and argon gas fill

Delivery across Hertfordshire

For Hertfordshire, delivery is to your site, yard or unit. Tell us about any access limits, such as weight restrictions or narrow streets, so the right vehicle is booked.

Building regulations in England

Under Approved Document K, glazing in critical locations (doors, and side panels within 300mm of a door, up to 1500mm above floor level; other glazing below 800mm) must break safely, be robust or in small panes, or be permanently protected. Toughened and laminated safety glass are classified to BS EN 12600. Replacing only the glass in an existing frame is generally treated as a repair rather than notifiable work.

Every order is confirmed in writing first. The acknowledgement lists each item exactly as it will be made, so any mistake in a size or handing can be caught before manufacture.