Preventative Maintenance for Commercial Doors & Docks
Why Preventative Maintenance Is the Smartest Investment You Can Make for Your Commercial Doors and Docks
Your commercial doors and loading docks take a beating every single day. Forklifts, foot traffic, weather, and constant cycling all add up. When one of those doors goes down unexpectedly, you're looking at halted operations, safety hazards, and emergency repair bills that nobody budgeted for.
The good news? Most of those failures are preventable. By scheduling regular preventative maintenance, you can avoid unexpected breakdowns, extend the life of your doors, and keep your facility operating safely and securely year-round.
Below, we break down what preventative maintenance looks like for the four most common types of commercial doors and docks.
Preventative Maintenance for Entry Doors
Entry doors are the first thing your employees, customers, and visitors interact with every day. A malfunctioning entry door is more than an inconvenience: it's a security risk and an accessibility issue.
What a preventative maintenance check covers:
- Door closers: Checking speed, latching, and backcheck adjustments to make sure the door closes properly without slamming or staying open
- Hinges and pivots: Inspecting for wear, loose screws, and misalignment that cause dragging or uneven gaps
- Weatherstripping and seals: Replacing worn or damaged seals to maintain energy efficiency and keep out moisture and debris
- Glass and panels: Looking for cracks, fogging between panes, or loose glazing
- Locks and hardware: Testing all locking mechanisms, panic devices, and access control components for smooth operation
- Thresholds: Checking for tripping hazards, gaps, or damage
- Automatic operators: Testing sensors, timing, and safety features on power-operated doors to confirm ADA compliance
Recommended frequency: Twice per year (spring and fall), plus after any significant impact or damage event.
Preventative Maintenance for Rolling Steel / Coiling Doors
Rolling steel doors are workhorses in warehouses, retail storefronts, and industrial facilities. Because they cycle hundreds (sometimes thousands) of times per year, worn components can lead to a door that won't open, won't close, or worse, drops unexpectedly.
What a preventative maintenance check covers:
- Curtain inspection: Checking individual slats for dents, misalignment, or interlocking failures
- Guide channels: Clearing debris and verifying the curtain tracks smoothly without binding
- Bottom bar and astragals: Inspecting for damage that could compromise the seal or allow the curtain to come off-track
- Spring tension: Testing counterbalance springs and adjusting tension so the door opens and closes evenly
- Motor and operator: Checking chain/belt drive, limit switches, and electrical connections
- Lubrication: Applying proper lubricant to bearings, springs, and moving components
- Safety devices: Testing fire-release mechanisms (fusible links or drop devices) where applicable
Recommended frequency: Every 6 months for standard use, quarterly for high-cycle applications.
Preventative Maintenance for Overhead (Sectional) Doors
Overhead sectional doors are everywhere: loading bays, service bays, parking garages, fire stations. A broken spring or snapped cable on one of these doors can cause serious injury or property damage.
What a preventative maintenance check covers:
- Torsion springs and cables: Inspecting for fraying, corrosion, or fatigue; checking cycle count life expectancy
- Tracks and rollers: Verifying alignment, clearing obstructions, and replacing worn rollers to reduce noise and drag
- Panels and sections: Looking for dents, cracks, or warping that affect insulation value and structural integrity
- Hinges and hardware: Tightening loose bolts and replacing worn hinges before they cause panel separation
- Weatherseals: Replacing bottom seals and side/top weatherstripping that have cracked or compressed
- Operator and drive system: Testing chain hoist or motor operator for proper speed, force settings, and limit adjustments
- Safety systems: Verifying photo eyes, reversing mechanisms, and entrapment protection devices are functional and properly aligned
Recommended frequency: Every 6 months, with a visual check monthly for high-traffic doors.
Preventative Maintenance for Loading Dock Levelers
Your dock levelers bridge the gap between your facility floor and delivery trucks. When a leveler fails, your entire shipping and receiving operation stops. Hydraulic leaks, worn deck plates, and malfunctioning hold-downs create real safety hazards for forklift operators.
What a preventative maintenance check covers:
- Hydraulic system: Inspecting cylinders, hoses, and power unit for leaks, proper fluid levels, and smooth operation
- Lip and deck plates: Checking for cracks, excessive wear, or bending that could catch forklift wheels
- Hold-down devices: Verifying that the leveler locks securely in the stored position
- Bumpers: Inspecting dock bumpers for compression damage and secure mounting
- Dock seals and shelters: Checking foam pads, curtains, and frames for tears and weather gaps
- Safety features: Testing lip keepers, velocity fuses, and communication lights (green/red dock signals)
- Structural components: Inspecting pit condition, concrete edges, and support beams for deterioration
Recommended frequency: Quarterly inspections with full service annually. High-volume docks (50+ trucks per day) should be inspected monthly.
The Cost of Skipping Maintenance
It's tempting to run your doors until something breaks. But here's the reality:
- Emergency repairs cost 2-3x more than scheduled maintenance visits
- Downtime costs add up fast when a loading dock is out of commission during peak shipping hours
- Liability exposure increases when safety devices aren't tested regularly
- Equipment lifespan drops significantly without proper lubrication, adjustment, and part replacement
A preventative maintenance program pays for itself by catching small problems before they become expensive emergencies.
Schedule Your Preventative Maintenance Visit
JMHR Group Dock & Door has been keeping Michigan's commercial doors and docks running since 1984. Whether you need a one-time inspection or a recurring maintenance contract, our technicians know every type of door and dock system inside and out.
We specialize in:
- Entry Door Sales, Service, and Repair
- Overhead Door Sales, Service, and Installation
- Automatic Door Service and Repair
- Shipping Dock Sales, Service, and Installation
Call us today to schedule your preventative maintenance visit:
๐ 866-843-3349
24-Hour Emergency Service available for when the unexpected happens.
