Are anthracite grey sliding doors right for homes in County Durham?
Most homeowners choosing anthracite grey sliding doors want the same things: more light, a clear view and a door that is easy to live with.
If the windows on your County Durham home are already anthracite, take a photo of the colour label on a frame or the paperwork so the door can be specified to the same RAL number.
Where a County Durham property has red brick, anthracite frames usually look softer than black while still giving a modern contrast, so it is worth comparing samples against the wall itself.
- Anthracite frames pair well with dark grey handles, interlocks and track covers, giving a coordinated finish where no bright metal parts catch the eye.
- Because the colour is part of the frame, not a film over it, small marks on aluminium can usually be touched in with a matched repair kit rather than replacing the section.
- A blue-grey tone frames the garden view without the hard contrast of black, so the door reads as part of the elevation rather than a dark outline.
Guide prices for anthracite grey sliding doors in County Durham
Pricing is transparent and does not change because you are in County Durham. The ranges below cover a standard-height door, fitted, with VAT; options are itemised in your quote.
| Overall width | Typical panels | Guide price (fitted, inc VAT) |
|---|---|---|
| 1.8 m | 2 panels | £3,695–£4,495 |
| 2.4 m | 2 panels | £4,295–£5,295 |
| 3.0 m | 2 panels | £4,995–£6,095 |
| 4.0 m | 3 panels | £6,095–£7,395 |
Every size is on the anthracite grey sliding doors page.
Daylight and glass in County Durham
At the latitude of County Durham, the midday sun climbs to about 59° in late June but only about 12° in late December, when daylight lasts around 7 h 14 min against 17 h 18 min in midsummer. A south-facing anthracite grey sliding door lets that low winter sun deep into the room; on a west or south elevation, solar-control glass keeps summer afternoons comfortable.
Where we fit in County Durham
We cover Darlington, Hartlepool, Stockton-on-Tees, Durham, Chester-le-Street, Billingham and the rest of County Durham.
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 anthracite grey sliding doors in County Durham
Can you match other doors and windows in my County Durham 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.
Will anthracite aluminium match my anthracite uPVC windows?
It should be close, but it may not be identical. uPVC windows usually get their colour from a laminated foil, while aluminium is powder coated, so the texture and sheen can differ even when both are RAL 7016. Lighting also affects how each looks. Bringing a sample from the door to the window is the most reliable check.
Do anthracite grey frames fade?
Good-quality polyester powder coatings are formulated to resist UV fading, so an anthracite frame should keep its colour for many years with routine cleaning. Some gradual change in sheen is normal on very exposed, sunny or coastal elevations. Washing the frames a few times a year removes salt and grime that can dull the finish over time.
How does powder coating work?
Powder coating is a dry finishing process that bonds coloured polyester powder to the aluminium with heat. The profiles are cleaned and pretreated, the powder is sprayed on with an electrostatic charge so it clings evenly, and the frame is baked until the powder melts into a smooth, hard film. It resists chipping and fading far better than wet paint.

