Trade aluminium windows in Harpenden

Aluminium windows for Harpenden jobs

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.

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.

• Polyester powder coating in RAL colours, single or dual colour
• Double or triple glazed sealed units
• Flush or stepped sash options
• Multi-point locking

Delivery to Harpenden

For Harpenden, 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. Postcode districts include AL5.

Getting a price

Send your sizes as a schedule: one line per item with width, height, quantity and any options. A spreadsheet, a PDF or a clear photo of a handwritten list all work.

Trade pricing is for businesses that buy for their own jobs or clients. Apply for an account online; it takes a few minutes.

Measuring tip

Aluminium frames are rigid and do not flex into an opening, so take accurate measurements and allow a consistent fitting gap all round.

Regulations for jobs in Harpenden

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.