Expert Automatic Door Repair in Harpenden
Business owners in Harpenden know that a broken shopfront door kills trade. We provide rapid, industrial-grade repairs. As independent specialists, we work on all major brands including Dorma, Record, Geze, and Assa Abloy.
Laminated Glass Replacement
Smashed glass? We replace toughened or laminated safety glass for automatic doors in Harpenden, securing your site immediately.
Planetary Gearbox Renewal
Grinding noises usually mean nylon gear fatigue. Instead of replacing the whole operator, we rebuild the planetary gearbox on-site in Harpenden, saving you thousands.
Fire Alarm Interface
We verify the link between your door and the building fire panel. In Harpenden, the door must 'Fail Safe' (open fully) immediately when the alarm sounds.
Heavy Duty Operator Install
For massive glass leaves in Harpenden, standard motors fail. We install heavy-duty operators capable of moving 200kg+ doors effortlessly.
Radar Sensor Calibration
Ghost opening wastes energy. We upgrade old sensors in Harpenden to digital microwave units that filter out rain and cross-traffic, only opening for genuine customers.
Common Faults We Fix in Harpenden
| Symptom | Likely Cause | Our Fix |
|---|---|---|
| Door Slams | Encoder Fault | Replace Motor Unit |
| Grinding Noise | Nylon Gearbox | Rebuild Transmission |
| Stuck Open | Fire Alarm / Battery | Reset Interface |
| Ghost Opening | Radar Interference | Install Digital Sensors |
Annual Maintenance Contracts (AMC)
Prevent expensive breakdowns in Harpenden. Our AMC packages provide bi-annual service visits, legal compliance logbooks, and priority callout status.
Call 0330 223 7190 to secure your building today.
Frequently Asked Questions
Do you repair Dorma doors in Harpenden?
Yes, we are independent experts for Dorma ES200, ST Flex, and older models.
How fast is your response?
We aim for same-day attendance in Harpenden for security-critical faults.
Do you offer Maintenance Contracts?
Yes, our AMC packages ensure your doors remain BS EN 16005 compliant year-round.