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Sliding patio doors · Greater London

Triple glazed sliding patio doors in Purley

We arrange surveys and fitting of triple glazed sliding patio doors in Purley and the CR8 area, with a written, fixed quote after a free survey.

CR8Postcode district
1.4U-value limit, England (W/m²K)
7h 51mDaylight, 21 Dec
15°Midday sun, 21 Dec
Anthracite aluminium sliding patio door half open onto a paved garden terrace

Large sliding panels in triple glass on rollers rated for the weight. A sliding patio door has large glazed panels that slide past each other on a track, so it opens without swinging into the room.

Winter light and glass choice in Purley

On the shortest day, Purley gets about 7 h 51 min of daylight and the midday sun reaches only about 15° above the horizon. Low winter sun means north-facing rooms here gain little solar heat, which is where triple glazing’s lower heat loss helps most.

Guide prices in Purley

GuideSupply and fit, inc VAT
uPVC 2-pane slider
about 1.8 m wide
£1,895 – £2,295
uPVC 2-pane slider, wide
about 2.4 m wide
£2,295 – £2,895
Aluminium slider
about 3 m wide
£3,295 – £4,195

Guide prices. Your written quote after the free survey fixes the price for the specification shown.

Rules for sliding patio doors in England

In England, replacement external doors must meet 1.4 W/m²K, or a door set energy rating of band C (more than 60% glazed) or band B (other doors). Replacement external doors fall under the same energy rules: a competent person scheme installer (such as FENSA or Certass) self-certifies the work and notifies the council, or a building control body approves it.

Before ordering: Replacing doors on a house is normally permitted development if the new ones look similar. Flats need planning permission for a change that alters their appearance, an Article 4 direction may mean permission is needed, and listed buildings need listed building consent.

How it works

The surveyor measures every opening, checks ventilation, escape windows and safety-glass zones, and talks through styles. Your written quote lists each item with its glass build-up and U-value, and the price is fixed for that specification.

  • Free survey and a written quote fixed for the specification
  • Glass build-up and door U-value on every quote
  • Written handover pack at the end of the job
  • Guarantees on frames, units and fitting in writing

Questions from Purley

Can I have a level threshold?

Low thresholds are available; they need a suitable drainage detail outside, which we check on survey.

How much does a triple glazed sliding door cost?

Our guide starts at £1,895 fitted for a 1.8 m uPVC slider and £3,295 for a 3 m aluminium slider, inc VAT. UK quotes for triple uPVC sliders run from about £1,600 to £2,600.

Do you fit triple glazed sliding patio doors in Purley?

Yes. We arrange surveys and fitting in Purley and across Greater London. Send your postcode and the windows or doors you want replaced, and we will book a free survey.

How long does it take to get triple glazed sliding patio doors fitted in Purley?

After the survey, typical manufacture time is 5 to 8 weeks, and a door is usually fitted in a day.

Nearby

We also cover nearby Coulsdon (3 km), South Croydon (3 km), Wallington (4 km) and Carshalton (5 km).

Other products in Purley

Sliding patio doors in Purley: book your free survey

Written quote fixed for the specification, after a free survey. Building Regulations sign-off by a competent person scheme installer or building control, as the law requires in England.

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