Black sliding doors across Hertfordshire
The right door depends on the opening, the room and the way you use the garden. Here is how black sliding doors tend to work out in practice:
Have white render on your Hertfordshire property? Black frames give the sharpest contrast against it, but view jet black and signal black samples on the wall before choosing.
Before ordering black for a listed Hertfordshire building, or one covered by an Article 4 direction, ask the local planning team whether the change of appearance needs consent.
- Powder coating bonds the black colour to the metal with heat, so the frame does not need repainting, only washing with mild soapy water a few times a year.
- A fine-textured sandtex finish has a slightly gritty surface that disguises fingerprints, light scratches and water marks better than a smooth black coating.
- With a dual colour frame you can keep black outside for the architecture and choose a lighter colour inside, so a small room does not feel enclosed by dark framing.
Guide prices for black sliding doors in Hertfordshire
These are guide prices for fitted doors at a standard height, including VAT. They run from an entry-level system to a premium one at the same size; the survey confirms which suits your opening.
| Overall width | Typical panels | Guide price (fitted, inc VAT) |
|---|---|---|
| 2.4 m | 2 panels | £4,295–£5,295 |
| 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 Hertfordshire
Daylight in Hertfordshire runs from about 7 h 46 min in December to 16 h 42 min in June, with the noon sun at roughly 15° and 62° 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 Hertfordshire
We cover Hemel Hempstead, Stevenage, St Albans, Welwyn Garden City, Cheshunt, Hatfield and the rest of Hertfordshire.
Approvals in England
In England, a replacement sliding door is a controlled fitting under the Building Regulations. In an existing home, a door with more than 60% glazing must reach a U-value of 1.4 W/m²K or better (or a Doorset Energy Rating of band C) under Approved Document L, and glass in doors must be safety glazing under Approved Document K. We arrange compliance through a competent person scheme installer or by notifying Building Control, and you receive the certificate.
Questions about black sliding doors in Hertfordshire
Is the price different in Hertfordshire?
No. Guide prices for black sliding doors are the same across mainland Britain, including Hertfordshire. The fitted price depends on size, system, glass and finish, and any structural work, all fixed in your written quote after survey.
What is the difference between RAL 9005 and RAL 9004?
RAL 9005 is jet black, the deepest standard black, while RAL 9004 is signal black, which is very slightly lighter and softer. Side by side, 9005 looks more intense and 9004 can appear marginally warmer. On a door frame the difference is subtle, so most people decide by looking at both samples against their own brick or render.
How much do black aluminium sliding doors cost?
On our aluminium doors black is a standard colour, so a single-colour black door is normally priced the same as white. The guide price for a 2.4 m two-panel door is £4,295–£5,295, and for a 3.6 m three-panel door £5,595–£6,895, fitted, inc VAT at standard 2.1 m height. Dual colour or special textures can add to the price.
Can I have black sliding doors in uPVC?
Yes, uPVC sliding doors can be supplied in black, usually as a foil laminated to the white uPVC profile. Dark foils on uPVC expand more in strong sun than aluminium, and the look and texture differ from powder-coated aluminium. Our uPVC sliding doors page explains the colours available on that material.