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Sliding patio doors · Wales

Triple glazed sliding patio doors in Gwent

Triple glazed sliding patio doors across Gwent: free survey, written fixed quote, and fitting by installation teams working for us. Towns we cover include Newport, Cwmbran and Monmouth.

9Towns with local pages
WalesRules applied
1.4U-value limit (W/m²K)
5 to 8 weeksTypical lead time
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.

Guide prices across Gwent

uPVC 2-pane slider

about 1.8 m wide

£1,895 – £2,295inc VAT · £1,580 – £1,910 ex VAT

  • Triple glazed panels
  • Removal of the old door or window
  • Fitted, sealed and finished
Mid-size

uPVC 2-pane slider, wide

about 2.4 m wide

£2,295 – £2,895inc VAT · £1,910 – £2,410 ex VAT

  • Triple glazed panels
  • Removal of the old door or window
  • Fitted, sealed and finished

Aluminium slider

about 3 m wide

£3,295 – £4,195inc VAT · £2,745 – £3,495 ex VAT

  • Triple glazed panels
  • Removal of the old door or window
  • Fitted, sealed and finished

Guide prices, supply and fit. The written quote after your survey fixes the price for the specification shown; anything extra is agreed with you first.

Towns in Gwent

Rules in Wales

In Wales, 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 as windows: a competent person scheme installer self-certifies the work, or building control approves it.

Planning: 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

You will know exactly what you are buying: the quote states the unit build-up, frame, finish, fitting work and how Building Regulations compliance is handled. On fitting day each opening is replaced and closed up before the team moves on.

  • Guide prices published, not hidden
  • No pressure: the quote is yours to keep
  • Frames, glass and fitting in one contract
  • Advice on planning and consents before you order

Questions

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.

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 you cover all of Gwent?

We arrange surveys and fitting across Gwent.

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

In Wales, householder rules do not cover flats, councils can use Article 4 directions, and listed buildings need consent.

Sliding patio doors in nearby areas of Wales

Other products in Gwent

Sliding patio doors across Gwent

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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