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Sliding patio doors · West Glamorgan

Triple glazed sliding patio doors in Swansea

From the first measure to the handover pack, we handle triple glazed sliding patio doors for homes in Swansea and the rest of West Glamorgan.

SA1Postcode district
1.4U-value limit, Wales (W/m²K)
7h 49mDaylight, 21 Dec
15°Midday sun, 21 Dec
Anthracite aluminium sliding patio door half open onto a paved garden terrace

More glass, less cold: sliders that stay comfortable in winter. 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 Swansea

On the shortest day, Swansea gets about 7 h 49 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 Swansea

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 Wales

Wales sets replacement door limits through Approved Document L for Wales (2022 edition, with 2024 amendments): 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 as windows: a competent person scheme installer self-certifies the work, or building control approves it.

Before ordering: Householder permitted development rules do not cover flats, and councils can remove rights with Article 4 directions. Listed buildings need listed building consent. Check with your council before changing the style or material of a front door.

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 Swansea

Are triple glazed sliding doors hard to open?

Not with correctly rated rollers. Lift-and-slide gear makes even very large panels easy to move.

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 I need permission for triple glazed sliding patio doors in Swansea?

In Wales, householder rules do not cover flats, councils can use Article 4 directions, and listed buildings need consent. Check whether your street is in a conservation area or covered by an Article 4 direction before changing the style.

Do you fit triple glazed sliding patio doors in Swansea?

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

Nearby

Nearby towns on our list include Briton Ferry (9 km), Gorseinon (9 km), Neath (11 km) and Llanelli (16 km).

Other products in Swansea

Sliding patio doors in Swansea: 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 Wales.

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