The faults that shut a business
Shutter will not lock or will not close
An opening that cannot be secured is a security problem for the whole premises. We treat it as an emergency call-out, day or night.
Bay door hit by a forklift or vehicle
Impact is one of the commonest causes of downtime. Damaged sectional panels can often be replaced section by section rather than renewing the whole door.
Motor trips, overheats or stops mid-travel
Often a sign the operator is undersized for how often the door cycles. We check duty rating as well as fixing the immediate fault.
Door reverses or refuses to move
Dirty, knocked or misaligned photocells and safety edges stop commercial doors without warning. Cleaning and realignment is often the fix.
Curtain jumping out of its guides
Wind loading and impact bend guides and pull slats out of line. Forcing the door usually makes the damage worse, so stop and call.
Fire shutter failing its test
Fire-rated shutters must work to their specification. We repair and test them and keep the documentation straight.

Before the engineer arrives
Do not try to force a jammed shutter or free a curtain under tension. Springs, barrels and drop-down curtains store a lot of energy, and a commercial door can weigh far more than it looks.
- Keep people and vehicles clear of the opening.
- Isolate the power if the motor is labouring or the door is moving erratically.
- If the unit must be secured, use the manual override only if staff are trained on it.
- Note what happened just before the fault, such as an impact, a storm or a power cut.
- Take a photo of the door, the guides and the control panel if it is safe to do so.
Repair now, or plan so it does not happen again
Most breakdowns we see are wear that was building for months: guides knocked slightly out of line, bearings running dry on a high-cycle door, safety edges that nobody has cleaned. Planned maintenance catches those while they are still cheap to deal with and turns an unpredictable cost into a scheduled one.
We run planned maintenance and fire shutter testing for single units and across multiple sites. If a repeat fault points to a door that is the wrong specification for how the opening is used, we will tell you plainly, rather than keep repairing it.
Pricing depends on the door family, the fault, the parts involved, access and timing, so commercial repairs are quoted once we have seen the door. Looking at replacing instead? See commercial doors, security and fire shutters and industrial high-speed doors. Home garage door broken? That is our garage door repair page.
Further reading: commercial overhead doors explained and electric roller shutters for commercial units.
Commercial repair questions
- Do you repair commercial doors outside office hours?
- Yes. Repairs are available 24/7, and a shutter or bay door that will not secure is treated as an emergency.
- Will you repair a door another company installed?
- Yes. We work on commercial roller shutters, sectional bay doors and industrial high-speed doors regardless of who fitted them.
- Can you quote a commercial repair over the phone?
- We do not publish commercial repair prices. Cost depends on the door, the fault, the parts and the access, so we give a figure once we have seen it.
- Do you offer maintenance contracts?
- Yes. We run planned maintenance, including fire shutter testing, and can schedule it across multiple sites.
