Are black sliding doors right for homes in Northamptonshire?
Most homeowners choosing black sliding doors want the same things: more light, a clear view and a door that is easy to live with.
Before ordering black for a listed Northamptonshire building, or one covered by an Article 4 direction, ask the local planning team whether the change of appearance needs consent.
Want black frames on your Northamptonshire home but worried about upkeep? The textured sandtex finish is a sensible middle ground, since it hides marks far better than smooth black.
- Jet black RAL 9005 gives a crisp, deep contrast against white render or pale brick, turning the door into a strong graphic element on the elevation.
- A fine-textured sandtex finish has a slightly gritty surface that disguises fingerprints, light scratches and water marks better than a smooth black coating.
- Signal black RAL 9004 is a fraction softer than jet black, which can suit homes with warmer stone or brick where a pure black would look harsh.
Guide prices for black sliding doors in Northamptonshire
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 home has been measured.
| Overall width | Typical panels | Guide price (fitted, inc VAT) |
|---|---|---|
| 1.8 m | 2 panels | £3,695–£4,495 |
| 2.1 m | 2 panels | £3,995–£4,895 |
| 2.4 m | 2 panels | £4,295–£5,295 |
| 4.0 m | 3 panels | £6,095–£7,395 |
Every size is on the black sliding doors page.
Daylight and glass in Northamptonshire
The midday sun over Northamptonshire ranges from about 14° at the winter solstice to about 61° at midsummer. Low-angle winter light reaches further into a room through a tall door, which is one reason taller panels are worth considering; on south or west walls, pair them with solar-control glass.
Where we fit in Northamptonshire
We cover Northampton, Corby, Kettering, Wellingborough, Rushden, Daventry and the rest of Northamptonshire.
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 black sliding doors in Northamptonshire
Do you fit black sliding doors in Northamptonshire?
Yes. We survey and fit black sliding doors in Northamptonshire and across Northamptonshire, including Northampton and Corby. Start with a guide price online or call us, and we will arrange a free survey for a new or replacement door.
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.
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.