Trade aluminium windows in Northamptonshire

Ordering aluminium windows for jobs in Northamptonshire

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.

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.

Specification at a glance

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

Delivery across Northamptonshire

Deliveries to Northamptonshire are booked once your order is in production. The charge is itemised on the quote and the delivery day is confirmed with you in advance.

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.

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.