- Postcode district
- LL40
- 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
- Machynlleth, Porthmadog, Bala
- Building rules
- Wales
Are timber and alu-clad sliding doors right for your Dolgellau home?
A few practical points decide whether timber and alu-clad sliding doors suit a particular room and opening:
Where the back of a Dolgellau 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 Dolgellau, check with the local planning authority before choosing any new door; timber frames are often closer in character to the original joinery.
- 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.
- 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.
- Many timber systems use lift and slide hardware, letting large, heavy panels glide easily and then settle onto compressed seals for a tight closure.
Light and sun in Dolgellau
Daylight in Dolgellau runs from about 7 h 36 min in December to 16 h 53 min in June, with the noon sun at roughly 14° and 61° respectively. Use that to choose your glass: standard low-E double glazing for north and east elevations, and consider solar-control or triple glazing for sunny south and west walls.
How much do timber and alu-clad sliding doors cost in Dolgellau?
Guide prices are the same across Gwynedd: 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) |
|---|---|---|
| 3.0 m | 2 panels | £7,495–£9,095 |
| 4.0 m | 3 panels | £9,095–£11,095 |
| 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.
Timescales for timber and alu-clad sliding doors in Dolgellau
We plan the job around your home in Dolgellau: survey first, then a written quote, then manufacture (typically 8–10 weeks from survey sign-off). The fitting itself usually takes 1 day for a two-panel swap; 1–2 days for larger doors. If you are in Machynlleth or Porthmadog, the same process and prices apply.
Rules for timber and alu-clad sliding doors in Wales
Wales sets its own Building Regulations guidance, including Approved Document L (Wales) for energy. A replacement sliding door must meet those requirements and use safety glass, and we arrange compliance through a registered installer or the local Building Control service.
Which options matter for timber and alu-clad sliding doors?
- Sliding hardware. Inline rollers on smaller doors, or lift and slide gear for larger and heavier panels.
- Timber species. Oak or another hardwood for a visible grain, or engineered softwood where a painted finish is planned.
- 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 Dolgellau
Can you match other doors and windows in my Dolgellau home?
Usually, yes. Most aluminium and uPVC systems come in standard RAL colours and finishes, and we can quote dual colour where the inside and outside need to differ. Bring photos of existing frames to the survey.
What is the difference between timber and alu-clad sliding doors?
The difference is the outside face: a timber sliding door is wood inside and out, while an alu-clad door has a powder-coated aluminium shell fixed over the exterior timber. Alu-clad needs only washing outside and comes in any RAL colour; all-timber needs periodic re-coating but keeps a natural wood look on both faces. The inside is timber either way.
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 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.

