- Postcode district
- EN5
- Survey
- Free for new and replacement doors
- Typical lead time
- Typically 8–10 weeks from survey sign-off
- Guide price
- From £5,095 inc VAT
- Nearby
- Mill Hill, Southgate, Finchley
- Building rules
- England
Are timber and alu-clad sliding doors right for your Barnet home?
A few practical points decide whether timber and alu-clad sliding doors suit a particular room and opening:
Oak floors, exposed beams or a timber kitchen in your Barnet home? Matching the inside finish of the door ties the new glazing into the room.
Because timber and alu-clad sliding doors typically take 8–10 weeks to make, a Barnet building programme runs more smoothly when the survey happens as soon as the opening size is fixed.
- Many timber systems use lift and slide hardware, letting large, heavy panels glide easily and then settle onto compressed seals for a tight closure.
- Wood is a natural insulator, so timber frames feel warm to the touch in winter and help keep condensation off the inside face of the frame.
- The inside face can be finished to match existing oak floors, stair parts or window boards, so the new door feels part of the room rather than an addition.
Daylight in Barnet and what it means for your glass
In Barnet the shortest day has roughly 7 h 48 min of daylight and the longest about 16 h 40 min. The noon sun sits near 15° above the horizon in winter and 62° in summer — so glass that faces south collects useful warmth from October to March, while a west-facing door may need solar control to stop it overheating in July.
Typical costs for timber and alu-clad sliding doors around Barnet
The table shows guide prices for common sizes, supplied and fitted, including VAT. Your exact price is fixed in a written quote once the opening in your Barnet home has been measured.
| Overall width | Typical panels | Guide price (fitted, inc VAT) |
|---|---|---|
| 1.5 m | 2 panels | £5,095–£6,195 |
| 2.4 m | 2 panels | £6,495–£7,995 |
| 4.8 m | 4 panels | £10,395–£12,595 |
See every size on the timber and alu-clad sliding doors page or try the guide price tool.
From survey to fitted door in Barnet
Surveys in the EN5 district are booked at a time that suits you. After you approve the quote, manufacture is typically 8–10 weeks from survey sign-off; on fitting day the old door comes out, the new frame is set level and sealed, and the panels are adjusted so they glide properly. Fitting usually takes 1 day for a two-panel swap; 1–2 days for larger doors.
Do you need approval in Barnet?
In England, a replacement sliding door is a controlled fitting under the Building Regulations. In an existing home, a door with more than 60% glazing must reach a U-value of 1.4 W/m²K or better (or a Doorset Energy Rating of band C) under Approved Document L, and glass in doors must be safety glazing under Approved Document K. We arrange compliance through a competent person scheme installer or by notifying Building Control, and you receive the certificate.
Choosing the specification
- Sliding hardware. Inline rollers on smaller doors, or lift and slide gear for larger and heavier panels.
- Handles. Traditional or contemporary handles in bronze, black, satin chrome or brass-effect finishes.
- Alu-cladding. A powder-coated aluminium outer shell in a standard or RAL colour, with timber left on show inside.
Questions about timber and alu-clad sliding doors in Barnet
Do you fit timber and alu-clad sliding doors in Barnet?
Yes. We survey and fit timber and alu-clad sliding doors in Barnet and across Greater London, including nearby Mill Hill and Southgate. Start with a guide price online or call us, and we will arrange a free survey for a new or replacement door.
Are timber sliding doors energy efficient?
Timber sliding doors are energy efficient because wood insulates naturally, and engineered timber systems typically achieve whole-door U-values comparable with good thermally broken aluminium, depending on the glass. In England, a new or replacement door in an existing home with more than 60% glazing must reach 1.4 W/m²K or better, and the glazing is specified to meet that. Wales, Scotland and Northern Ireland set their own energy rules.
How often do timber sliding doors need treating?
Timber sliding doors need the outside re-coated every few years, depending on how exposed the elevation is and which finish system is used; doors facing full sun or coastal weather need attention soonest. Alu-clad doors avoid this, needing only an occasional wash outside. Inside, timber only needs wiping and an occasional refresh of the lacquer or oil, and a clean track protects the rollers.
How much do timber sliding doors cost?
Timber and alu-clad sliding doors start from a guide price of £5,095 for a 1.5 m two-panel door, fitted, inc VAT, at standard 2.1 m height. A 2.4 m door is a guide £6,495–£7,995, and a 4.8 m four-panel door is around £10,395. Species, cladding, finish and glass all affect the figure, and the final price is fixed in a written quote after survey.