Trade uPVC sliding sash windows in Lancashire

Ordering uPVC sliding sash windows for jobs in Lancashire

Sashes tilt in for cleaning, which matters on upper floors of flats and terraces where the outside of the glass cannot be reached from a ladder.

Sliding sash windows are made around the balances, so we size each window individually and choose the balance to suit the sash weight, including any acoustic or toughened glass you specify.

Specification at a glance

• Double glazed sealed units, with heritage spacer colours
• Sash locks, sash lifts and restrictors
• Run-through horns or plain sashes
• Tilt-in sashes for cleaning from inside
• Twin sashes sliding vertically in a uPVC box frame

Delivery across Lancashire

For Lancashire, 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.

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.