Trade aluminium windows in Cumbria

Ordering aluminium windows for jobs in Cumbria

A polyamide thermal break separates the inner and outer parts of the frame, which is what lets aluminium windows meet modern thermal requirements.

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

• Double or triple glazed sealed units
• Flush or stepped sash options
• Trickle vents where specified
• Side-hung, top-hung, fixed and tilt and turn configurations
• Slim sightlines for larger glass areas

Delivery across Cumbria

We deliver to sites and yards in Cumbria as part of our mainland delivery service. Delivery is priced on the quote, so you know the full cost before you place the order.

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.

Before anything goes into production you get a written order acknowledgement with sizes, finishes and handing for every item. Check it carefully, because made-to-measure items cannot be returned if the sizes were wrong.