Trade aluminium windows in Hertfordshire

Ordering aluminium windows for jobs in Hertfordshire

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.

Every aluminium window is powder coated to the RAL colour you choose. Dual colour lets you have, for example, anthracite outside and white inside on the same frame.

Specification at a glance

• Side-hung, top-hung, fixed and tilt and turn configurations
• Slim sightlines for larger glass areas
• Polyester powder coating in RAL colours, single or dual colour
• Multi-point locking
• Thermally broken aluminium frame and sash with polyamide thermal break

Delivery across Hertfordshire

Deliveries to Hertfordshire 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.

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.