Are anthracite grey sliding doors right for homes in Northamptonshire?
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.
Choosing a colour for a Northamptonshire extension that will be seen from the garden all day? Hold textured and smooth anthracite samples up in daylight before committing to either.
For a Northamptonshire house with white-painted rooms inside, a dual colour frame avoids a heavy grey border around the view while keeping anthracite on the outside.
- 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.
- 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.
- RAL 7016 is a widely used reference colour for windows and doors, which makes it easier to tie new sliding doors in with existing frames, fascias and garage doors.
Guide prices for anthracite grey 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) |
|---|---|---|
| 2.1 m | 2 panels | £3,995–£4,895 |
| 3.0 m | 2 panels | £4,995–£6,095 |
| 4.0 m | 3 panels | £6,095–£7,395 |
| 4.8 m | 4 panels | £6,995–£8,495 |
Every size is on the anthracite grey sliding doors page.
Daylight and glass in Northamptonshire
Daylight in Northamptonshire runs from about 7 h 41 min in December to 16 h 48 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.
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 anthracite grey sliding doors in Northamptonshire
Is the price different in Northamptonshire?
No. Guide prices for anthracite grey sliding doors are the same across mainland Britain, including Northamptonshire. The fitted price depends on size, system, glass and finish, and any structural work, all fixed in your written quote after survey.
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.
What is the difference between textured and smooth anthracite?
Textured anthracite has a fine grain you can feel, while smooth anthracite has a flat satin or matt surface. Textured finishes hide fingerprints, light scratches and water marks better and suit doors that get heavy use. Smooth finishes look sleeker and more minimal but show dust and marks more readily. Both are durable powder coatings applied the same way.
Is anthracite grey more expensive than white?
On our aluminium doors anthracite grey is a standard colour, so a single-colour anthracite door normally costs the same as white. A dual colour frame, or a non-standard RAL shade, adds to the price. The guide price for a 2.4 m two-panel aluminium door is £4,295–£5,295, fitted, inc VAT at standard 2.1 m height.