Black sliding doors across Powys
Most homeowners choosing black sliding doors want the same things: more light, a clear view and a door that is easy to live with.
Where the rest of a Powys home has white windows, a black sliding door on the rear extension can work well, provided the extension reads as a separate, modern addition.
Have white render on your Powys property? Black frames give the sharpest contrast against it, but view jet black and signal black samples on the wall before choosing.
- Thermally broken aluminium systems are designed to cope with the extra expansion that comes from dark frames heating up in strong sun.
- A black frame recedes against the view, so even a door with a standard-width interlock can look slimmer and more minimal than the same profile in a pale colour.
- A fine-textured sandtex finish has a slightly gritty surface that disguises fingerprints, light scratches and water marks better than a smooth black coating.
Guide prices for black sliding doors in Powys
Guide prices are the same across Powys: 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) |
|---|---|---|
| 1.5 m | 2 panels | £3,295–£4,095 |
| 3.6 m | 3 panels | £5,595–£6,895 |
| 4.0 m | 3 panels | £6,095–£7,395 |
| 4.8 m | 4 panels | £6,995–£8,495 |
Every size is on the black sliding doors page.
Daylight and glass in Powys
In Powys the shortest day has roughly 7 h 42 min of daylight and the longest about 16 h 46 min. The noon sun sits near 14° above the horizon in winter and 61° 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.
Where we fit in Powys
We cover Brecon, Builth Wells, Crickhowell, Hay-on-Wye, Knighton, Llandrindod Wells and the rest of Powys.
Approvals 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.
Questions about black sliding doors in Powys
How soon can you survey in Powys?
Surveys in Powys are booked at a time that suits you, and we offer survey dates when we reply to your enquiry. After you approve the written quote, manufacture is typically 4–6 weeks after survey sign-off.
Will black frames make my room feel darker?
Black frames do not reduce the glass area, so they let in the same daylight as the same door in white. What changes is the look: a dark outline frames the view more strongly, which can feel enclosing in a small room. A dual colour frame, black outside and lighter inside, is a common way to avoid that.
Does a black frame affect the U-value?
The frame colour does not meaningfully change the tested U-value of an aluminium sliding door, which depends on the thermal break, the glass and the seals. A good double glazed thermally broken aluminium slider typically achieves around 1.2–1.6 W/m²K for the whole door, depending on the system and glass specification.
Do black sliding doors get hot in the sun?
Yes, black frames absorb more solar heat than lighter colours, so on a south- or west-facing elevation they can become hot to touch on a sunny afternoon. Good thermally broken aluminium systems are designed to handle the extra expansion. If the glass area is large, solar-control glass helps limit how much heat passes into the room as well.

