Timber and alu-clad sliding doors across County Durham
Here is what to weigh up if you are considering timber and alu-clad sliding doors for a home in County Durham:
Where the back of a County Durham home faces south and takes full sun, choosing alu-clad keeps the timber protected and cuts out the re-coating that strong sunlight makes necessary.
For a listed building or a house in a conservation area in County Durham, check with the local planning authority before choosing any new door; timber frames are often closer in character to the original joinery.
- A timber sliding door sits comfortably beside brick, stone, render or weatherboarding, which helps where a modern metal frame would look out of character.
- Stains, paints and lacquers are sprayed in the factory under controlled conditions, giving a more even and longer-lasting coat than a finish brushed on site.
- Engineered timber is laminated from several layers with the grain opposed, so frames resist the twisting and warping that solid timber can suffer as the seasons change.
Guide prices for timber and alu-clad sliding doors in County Durham
Guide prices are the same across County Durham: the fitted price depends on the size, system and specification, not your postcode. These figures are for a standard 2.1 m high door, fitted, including VAT and removal of an old door of similar size.
| Overall width | Typical panels | Guide price (fitted, inc VAT) |
|---|---|---|
| 1.8 m | 2 panels | £5,595–£6,795 |
| 3.0 m | 2 panels | £7,495–£9,095 |
| 3.6 m | 3 panels | £8,395–£10,295 |
| 4.0 m | 3 panels | £9,095–£11,095 |
Every size is on the timber and alu-clad sliding doors page.
Daylight and glass in County Durham
Because County Durham sees long summer days (about 17 h 18 min) and short winter ones (about 7 h 14 min), the elevation your door faces makes a real difference. With the midday sun at about 12° in winter, a south-facing door brings light well into the room; a west-facing door catches hot late-afternoon sun in summer.
Towns we cover in County Durham
We survey and fit timber and alu-clad sliding doors in 14 towns across County Durham, including the DH1, DH3, DH8, DH9, DL1, DL12 postcode districts.
Approvals in England
English Building Regulations treat a new or replacement external door in an existing home as a controlled fitting: it needs a U-value of 1.4 W/m²K or better (or Doorset Energy Rating band C) if more than 60% of it is glazed (Approved Document L), and safety glass in a critical location (Approved Document K). Compliance is arranged through a competent person scheme installer or a Building Control notification, so you get a certificate for your records.
Questions about timber and alu-clad sliding doors in County Durham
Do I need building approval for timber and alu-clad sliding doors in County Durham?
In England a replacement door is a controlled fitting, so compliance is arranged through a competent person scheme installer or Building Control; new openings need a Building Regulations application. We confirm the right route for your property at survey, so the paperwork is in place before fitting.
How big can a timber sliding door be?
A timber sliding door in our range is typically about 1.5 m to 4.8 m wide overall, in two to four panels, at standard 2.1 m height or taller on request. Individual panel sizes depend on the system and glass weight; larger panels usually move to lift and slide hardware so they stay easy to open. Sizes are confirmed after survey.
How long do timber sliding doors take to make?
Timber and alu-clad sliding doors typically take 8–10 weeks to make after survey sign-off, longer than metal or uPVC, because each door is joinery-made, factory finished and allowed to cure before delivery. Fitting typically takes 1 day for a two-panel swap and 1–2 days for larger doors. These are typical timescales, confirmed once your order is placed.
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.