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Sliding patio doors · South Glamorgan

Triple glazed sliding patio doors in Cardiff

We arrange surveys and fitting of triple glazed sliding patio doors in Cardiff and the CF10 area, with a written, fixed quote after a free survey.

CF10Postcode district
1.4U-value limit, Wales (W/m²K)
7h 50mDaylight, 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 Cardiff

By midsummer Cardiff has about 16 h 38 min of daylight, but in December only around 7 h 50 min, with the noon sun at about 15°. Triple glazing keeps more heat in during those long, dark months; big south and west windows may suit solar-control glass for summer.

Guide prices in Cardiff

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

We start with a survey, not a sales pitch: measurements, the structure above any bays, trickle-vent needs and escape windows. The quote that follows fixes the price, and anything unexpected on the day is agreed with you first.

  • 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 Cardiff

Can I have a level threshold?

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

Do sliding doors need safety glass?

Yes, all door glass must be safety glass. Triple units in sliders are toughened or laminated.

Do I need permission for triple glazed sliding patio doors in Cardiff?

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.

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

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

Nearby

Also near Cardiff: Penarth (5 km), Caerphilly (11 km), Barry (12 km) and Risca (15 km).

Other products in Cardiff

Sliding patio doors in Cardiff: 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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