- Postcode district
- BT55
- Survey
- Free, area covered by arrangement
- Typical lead time
- Typically 8–10 weeks from survey sign-off
- Guide price
- From £5,095 inc VAT
- Nearby
- Portrush, Coleraine, Ballymoney
- Building rules
- Northern Ireland
Are timber and alu-clad sliding doors right for your Portstewart home?
Before you settle on a door type, it helps to know what timber and alu-clad sliding doors do well and what to check before you order.
For a listed building or a house in a conservation area in Portstewart, check with the local planning authority before choosing any new door; timber frames are often closer in character to the original joinery.
Whether you live in Portstewart or elsewhere in County Londonderry, an exposed coastal or hilltop elevation makes a strong case for alu-clad rather than all-timber outside.
- Scratches and dents on internal timber faces can usually be sanded and refinished locally, rather than needing a whole panel replaced.
- 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.
Planning glass for the light in Portstewart
Daylight in Portstewart runs from about 7 h 08 min in December to 17 h 25 min in June, with the noon sun at roughly 11° and 58° 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.
Timber and alu-clad sliding doors prices in Portstewart
Use these guide prices to budget. They include VAT, fitting and taking away an old door of a similar size. Taller doors, triple glazing and dual colour add to the figure — the online tool shows how much.
| Overall width | Typical panels | Guide price (fitted, inc VAT) |
|---|---|---|
| 1.5 m | 2 panels | £5,095–£6,195 |
| 1.8 m | 2 panels | £5,595–£6,795 |
| 3.6 m | 3 panels | £8,395–£10,295 |
See every size on the timber and alu-clad sliding doors page or try the guide price tool.
How fitting works in Portstewart
Once the opening is measured, nothing is ordered until you sign off the specification. Lead time is typically 8–10 weeks from survey sign-off. Our fitters protect floors, remove the old door, install and seal the new one and leave the area clean — usually 1 day for a two-panel swap; 1–2 days for larger doors for a door like this. Portstewart is in an area we cover by arrangement: the survey is still free, and survey dates, delivery and any travel cost for delivery and fitting are confirmed in your quote before you order.
Do you need approval in Portstewart?
Building control in Northern Ireland is run by district councils under the Building Regulations (Northern Ireland). We take on work in Northern Ireland by arrangement and confirm what approval your door needs before anything is ordered.
Options to consider for your timber and alu-clad sliding door
- Alu-cladding. A powder-coated aluminium outer shell in a standard or RAL colour, with timber left on show inside.
- Glass. Double or triple glazed safety glass, with slim glazing bars available for a period look.
- Timber species. Oak or another hardwood for a visible grain, or engineered softwood where a painted finish is planned.
Questions about timber and alu-clad sliding doors in Portstewart
Do I need building approval for timber and alu-clad sliding doors in Portstewart?
In Northern Ireland the Building Regulations (Northern Ireland) apply through district council building control; work there is by arrangement. We confirm the right route for your property at survey, so the paperwork is in place before fitting.
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.
Are timber sliding doors secure?
Timber sliding doors are secure when built with multi-point locking, laminated glass and robust sections, because engineered timber gives the locking keeps a solid, dense fixing. Timber systems are available tested to PAS 24, the UK enhanced security test standard for doorsets. Internally beaded glass and a key-locking handle add further resistance to forced entry.
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.

