- Postcode district
- DE1
- Survey
- Free for new and replacement doors
- Typical lead time
- Typically 6–8 weeks from survey sign-off
- Guide price
- From £6,595 inc VAT
- Nearby
- Belper, Ilkeston, Heanor
- Building rules
- England
Is an external pocket sliding door a good fit for your home in Derby?
Before you settle on a door type, it helps to know what external pocket sliding doors do well and what to check before you order.
However sheltered or exposed your Derby home is, external pocket sliding doors need a drained pocket and a clear external channel so rainwater running along the track never sits inside the wall.
If the wall beside your Derby patio opening is free of windows, radiators and sockets, it may be long enough to take a pocket so the panels disappear completely.
- Insulating the pocket wall and sealing the panel edges limits heat loss through the cavity, helping the wall beside the door perform like the rest of the house.
- A lined and drained pocket carries rainwater running along the track out of the wall, protecting the structure as well as the rollers.
- Parked inside the wall, open panels are protected from weather and knocks, and garden furniture can sit right up to the edge of the opening.
How much sun will a door in Derby get?
At the latitude of Derby, the midday sun climbs to about 61° in late June but only about 14° in late December, when daylight lasts around 7 h 34 min against 16 h 55 min in midsummer. A south-facing external pocket sliding door lets that low winter sun deep into the room; on a west or south elevation, solar-control glass keeps summer afternoons comfortable.
Typical costs for external pocket sliding doors around Derby
These figures are for the door supplied and fitted, with the engineer's structural calculations, including VAT. They include forming the opening and the pocket in the wall; Building Control fees are set by your council and are extra. Your price is fixed in a written quote after survey.
| Overall width | Typical panels | Guide price (fitted, inc VAT) |
|---|---|---|
| 3.6 m | 2 panels | £9,295–£11,395 |
| 4.0 m | 2 panels | £9,895–£12,095 |
| 6.0 m | 3 panels | £12,895–£15,795 |
See every size on the external pocket sliding doors page or try the guide price tool.
Timescales for external pocket sliding doors in Derby
Surveys in the DE1 district are booked at a time that suits you. Once the opening is ready and measured, manufacture is typically 6–8 weeks from survey sign-off; on fitting day the frame is set level and sealed, and the panels are adjusted so they glide properly. Fitting usually takes 3–5 days of building work to form the opening and pocket, then 1–2 days to fit the door.
Rules for external pocket sliding doors in England
In England, forming or widening an opening is structural work that needs a Building Regulations application, structural calculations and usually a steel beam on padstones. The new door is also a controlled fitting (U-value 1.4 W/m²K or better if more than 60% glazed). If steelwork bears on a party wall, the Party Wall etc. Act 1996 may apply.
Specification choices for external pocket sliding doors in Derby
- System type. Standard aluminium, slimline or lift and slide pocket systems, chosen to suit panel weight and sightlines.
- Glass. Double or triple glazed safety glass, with laminated or solar-control units as needed.
- Colours. Single or dual colour powder coating, so the exposed edge of the panel matches the frame inside and out.
Questions about external pocket sliding doors in Derby
Do I need building approval for external pocket sliding doors in Derby?
In England a replacement door is a controlled fitting, so compliance is arranged through a competent person scheme installer or Building Control; new openings need a Building Regulations application. We confirm the right route for your property at survey, so the paperwork is in place before fitting.
How much do external pocket sliding doors cost?
External pocket sliding doors start from a guide price of £6,595 for a 1.8 m single-panel door, fitted, inc VAT, at standard 2.1 m height, including forming the wall pocket. A 3 m two-panel door is a guide £8,395–£10,295, and a 6 m three-panel door is around £12,895. Wall construction, glass and finish affect the figure, which is fixed in a written quote after survey.
Are external pocket doors secure?
External pocket doors are secure when the panels lock to the frame with multi-point hardware, the glass is laminated, and the pocket is closed off so the panels cannot be reached from outside. Once shut, the front edge of the panel locks into the frame just as on a standard slider. Systems are available tested to PAS 24, and the locking specification is set out in your quote.
Do external pocket doors need Building Regulations approval?
External pocket doors need Building Regulations approval in England, because forming the opening and pocket is structural work needing an application, structural calculations (included in our guide prices), and usually a steel beam or lintel. If the steel bears on a party wall, the Party Wall etc. Act 1996 (England and Wales) may apply. Scotland needs a building warrant; Wales and Northern Ireland have their own building control rules.