Trade uPVC sliding sash windows in Greater London

Across Greater London, installers, builders and property firms order uPVC sliding sash windows from us by schedule, with every item quoted separately and delivery priced in.

Guide trade price
£520 to £1,150 per window, ex VAT, supply only, delivery extra
Lead time
uPVC windows are typically made in 3 to 4 weeks from a confirmed order.
Delivery area
All of Greater London
Regulations
England rules apply
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Ordering uPVC sliding sash windows for jobs in Greater London

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.

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.

Specification at a glance

  • Twin sashes sliding vertically in a uPVC box frame
  • Spiral or constant-force balances sized to sash weight
  • Run-through horns or plain sashes
  • Sash locks, sash lifts and restrictors
  • Tilt-in sashes for cleaning from inside

Delivery across Greater London

Deliveries to Greater London 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.

We do not start manufacturing until you have approved the order acknowledgement. It repeats each size, colour and opening direction so you can check it against your survey.

uPVC sliding sash windows in Greater London: common questions

Do you supply uPVC sliding sash windows across all of Greater London?

Yes. We deliver throughout Greater London, and the charge for your postcode is shown on the quote.

Which building regulations apply to jobs in Greater London?

The rules for England apply. You can specify uPVC sliding sash windows to suit, and the performance values are stated on your quote. Your installer or designer remains responsible for compliance and any notification.

How do I get trade prices for Greater London?

Send your schedule through the quote form or by email, and apply for a trade account if you do not already have one.

Why are sliding sash windows dearer than casements?

They use more profile, balances and hardware, and every window is set up individually. Our guide range reflects that.

Can you match the glazing bar pattern of existing windows?

Yes. Tell us the pattern for each sash, for example six over six or two over two, and whether you want bars that look applied or sit between the panes.

Request trade prices

Send your sizes and we return an itemised trade quote.

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