Quick answer
We can supply, install and refurbish large-span doors across Hertfordshire where standard industrial doors stop, from hangars and rail sheds to heavy plant workshops, with a free survey for sites in Harpenden.
- Town
- Harpenden
- Postcode district
- AL5
- Area
- Hertfordshire
- Survey
- Free for new installations
What to specify
- Safety systems. Large doors move a lot of mass, so warning and detection devices are built in from the start.
- Designed per opening. Each door engineered around the opening size, structure and site wind exposure.
- Wind resistance. Leaves, guides and fixings designed for the wind load on the closed door.
- Refurbishment. Sound but tired doors can be brought back with new running gear, drives and safety devices.
- Drives and controls. Powered leaves with controls to suit the site, plus a way to move the door if power is lost.
Examples of work we can quote for
- Surveying and specifying a very wide sliding or folding door for a building that houses large plant and machinery.
- Recladding the leaves of a large sliding door with a corrosion-resistant finish suited to an exposed site.
- Refurbishing manual large-span sliding doors with new bottom wheels, top guides and an electric drive unit on each leaf.
Powered door rules that apply in Harpenden
Harpenden is in England, where powered industrial doors fall under Great Britain's health and safety law. Whoever makes a door powered — including converting a manual door — usually takes on the manufacturer's duties under the Supply of Machinery (Safety) Regulations 2008: risk assessment, technical file, conformity marking and a Declaration of Conformity. Once it is in use, the employer or occupier must keep it safe under the Workplace (Health, Safety and Welfare) Regulations 1992 and PUWER 1998.
Keeping your site running during the work
If your premises are leased, check whether the landlord needs to approve the work. We can provide drawings and product data for the landlord or managing agent before the order is placed.
Guide prices
| Item | Guide price (ex VAT) |
|---|---|
| Hangar and large-span doors | on survey (typically from £39,995) |
Guide prices for supply and installation unless stated, excluding VAT, which is added at the current rate where it applies. Your fixed price is confirmed in writing after a survey, before any work starts.
Your questions about hangar and large-span doors
Do you service large doors across Hertfordshire?
Yes. We service and repair hangar and large-span doors across Hertfordshire, including running gear, drives, controls and safety devices. Service and repair visits are chargeable and quoted before work starts.
Which hangar door type would suit our building in Harpenden?
It depends on headroom, side space, structure and how often the door moves. Sliding doors need side space, vertical-lift fabric doors need headroom, and large sectional doors suit big but not extreme openings. We recommend after survey.
How much does a hangar door cost in Harpenden?
Hangar and large-span doors are priced on survey because each is designed for its opening and structure. Typical projects start from around £39,995 ex VAT. After surveying your site in Harpenden, we confirm a fixed price in writing.
Hangar and large-span doors near Harpenden
Besides Harpenden, we can survey and quote for sites in St Albans, Luton, Hemel Hempstead and the rest of Hertfordshire.
- Hangar and large-span doors in St Albans
- Hangar and large-span doors in Luton
- Hangar and large-span doors in Hemel Hempstead
- Hangar and large-span doors in Welwyn Garden City
- Hangar and large-span doors in Hatfield
- Hangar and large-span doors in Dunstable
Other services in Harpenden
- Fire shutter servicing and drop tests
- Dock shelters and seals
- Steel personnel and fire exit doors
- Cold store and freezer doors
- Industrial door replacement
- Sectional overhead doors
- Impact traffic doors
- PVC strip curtains
More about Hangar and large-span doors · industrial doors in Harpenden. Last updated 19 October 2026.