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Sliding patio doors · Surrey

Triple glazed sliding patio doors in Farnham

Triple glazed sliding patio doors for homes in Farnham: measured on a free survey, made to order and fitted by installation teams working for us across Surrey.

GU9Postcode district
1.4U-value limit, England (W/m²K)
7h 52mDaylight, 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 Farnham

On the shortest day, Farnham gets about 7 h 52 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 Farnham

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.

  • 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 from Farnham

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.

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

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

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

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.

Nearby

Also near Farnham: Aldershot (4 km), Fleet (8 km), Farnborough (9 km) and Bordon (12 km).

Other products in Farnham

Sliding patio doors in Farnham: 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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