Trade aluminium windows in Northumberland

Ordering aluminium windows for jobs in Northumberland

Aluminium is stiffer than uPVC, so frames can be slimmer for the same window size, which is why it is often specified for extensions where the client wants as much glass as possible.

If the windows are part of an extension package with bifold or sliding doors, order them together and the colours and finishes are matched across the job.

Specification at a glance

• Thermally broken aluminium frame and sash with polyamide thermal break
• Trickle vents where specified
• Double or triple glazed sealed units
• Side-hung, top-hung, fixed and tilt and turn configurations
• Polyester powder coating in RAL colours, single or dual colour

Delivery across Northumberland

Orders for Northumberland go out on our mainland routes. The delivery charge and date are shown on your quote, and the date is confirmed when your order is acknowledged.

Building regulations in England

Replacement windows in England should meet Approved Document L: a U-value of 1.4 W/m²K or a Window Energy Rating of band B. Approved Document F expects background ventilation to be no worse than before, which usually means trickle vents. Glazing in critical locations must break safely, be robust or in small panes, or be permanently protected under Approved Document K, which in practice usually means toughened or laminated safety glass. Rooms that need an escape route may need an escape window under Approved Document B. Replacing windows is notifiable building work: the installer self-certifies through a competent person scheme such as FENSA or Certass, or the work goes through building control.

We do not start manufacturing until you have approved the order acknowledgement. It repeats each size, colour and opening direction so you can check it against your survey.