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French doors · England

Triple glazed French doors in Kent

We survey and fit triple glazed French doors across Kent, from Maidstone and Gillingham to smaller towns such as Swanley.

23Towns with local pages
EnglandRules applied
1.4U-value limit (W/m²K)
4 to 7 weeksTypical lead time
White French doors open from a kitchen-diner onto a sunny garden patio

uPVC or aluminium French doors, fitted with multi-point locks. French doors are a pair of doors that open together, with no fixed centre post, usually leading to a garden or patio.

Guide prices across Kent

uPVC French doors

about 1.5 m wide

£1,295 – £1,695inc VAT · £1,080 – £1,410 ex VAT

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

uPVC French doors with side panels

about 2.4 m wide

£1,895 – £2,395inc VAT · £1,580 – £1,995 ex VAT

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

Aluminium French doors

about 1.8 m wide

£2,895 – £3,695inc VAT · £2,410 – £3,080 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 Kent

Rules 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

Can French doors be triple glazed in uPVC?

Yes, many uPVC door systems take triple units; the frame depth is checked on survey.

Do I need planning permission?

Replacing an existing door on a house is normally permitted development. Making a new opening is a structural change that may need approval; flats and listed buildings have their own rules.

How much are triple glazed French doors?

Our guide starts at £1,295 fitted for uPVC and £2,895 for aluminium, inc VAT.

Do you cover all of Kent?

We arrange surveys and fitting across Kent.

Do I need permission for triple glazed French doors in England?

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.

French doors in nearby areas of England

Other products in Kent

French doors across Kent

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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