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Sliding patio doors · Greater London

Triple glazed sliding patio doors in Morden

Looking at triple glazed sliding patio doors for a home in Morden? We survey, quote and fit across Greater London, and the SM4 postcode district is part of that.

SM4Postcode district
1.4U-value limit, England (W/m²K)
7h 50mDaylight, 21 Dec
15°Midday sun, 21 Dec
Anthracite aluminium sliding patio door half open onto a paved garden terrace

uPVC and aluminium sliders with low-threshold options. 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 Morden

In Morden, midday sun in late December sits around 15° high, with roughly 7 h 50 min of daylight. For windows facing north or shaded by neighbours, cutting heat loss matters more than solar gain; on open south-facing glass, ask about a higher solar-gain unit.

Guide prices in Morden

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

England sets replacement door limits through Approved Document L (2021 edition, with 2023 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: 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.

Planning: 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

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.

  • Every opening measured, including escape and vent needs
  • Frames rated for the weight of triple glass
  • Old windows removed and taken away
  • Each opening closed up the same day

Questions from Morden

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

In England, a replacement door on a house that looks similar is normally permitted development; flats need permission if the change alters their appearance, Article 4 areas may need permission, and listed buildings need listed building 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 Morden?

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

Nearby

Also near Morden: Mitcham (2 km), Wimbledon (3 km), Carshalton (4 km) and New Malden (4 km).

Other products in Morden

Sliding patio doors in Morden: 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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