Shop rolling doors get used heavily. When they break, you need a fix fast because every hour the door isn't working is an hour your shop isn't open. Here's what common repairs cost.
No Power to Motor
Could be the fuse, the contactor, or the control board. Diagnosis plus repair: 200 to 500 yuan. If the control board needs replacement: 500 to 1500 yuan for the board plus 200 to 400 yuan labor.
Motor Humming but Door Doesn\'t Move
Could be a bad capacitor (80 to 200 yuan for the part, 50 to 150 yuan labor), jammed limit switches (100 to 300 yuan total), or a seized brake (200 to 500 yuan total). If the motor itself is burned out, replacement is 1000 to 2500 yuan total.
Door Jerks or Stops Mid-Travel
Track obstruction (100 to 300 yuan to clean and adjust), worn rollers or sliders (200 to 500 yuan for parts and labor), loose chain or sprocket (150 to 400 yuan). If the curtain or slats are damaged: 300 to 800 yuan depending on how many slats need replacement.
Remote Not Working
Usually just the battery (DIY, 5 to 20 yuan). If the remote needs replacement: 80 to 200 yuan each. If the receiver is dead: 200 to 500 yuan.
Spring Broken
Spring plus labor: 300 to 800 yuan depending on the door size and spring type. Spring replacement is not a DIY job. The tension in the spring can cause serious injury.
Door Is Noisy
Lubrication service: 100 to 200 yuan. If bearings need replacement: 300 to 600 yuan.
Door Off Its Tracks
Re-alignment and track repair: 300 to 800 yuan. If the door fell out because the end caps broke: 400 to 1200 yuan.
Door Won\'t Close All the Way
Limit switch adjustment: 100 to 200 yuan. If the safety sensor is the problem: 200 to 400 yuan for replacement.
Service Call Fee
Most companies charge a call-out fee of 50 to 150 yuan in the urban area. This is usually waived if you go ahead with the repair.
Prices are for the Shenzhen area. Costs in outlying areas are higher due to travel time.
The most common repair I see is people not doing any maintenance and then wondering why their door broke. The second most common is people trying to fix it themselves and making it worse. If you don't know what you're doing, call a professional first.