Diligent Garage Door Maintenance Checklist

Keep your garage door running safely and efficiently year-round

🛠️ General Maintenance Tips

• Perform maintenance twice a year (align with other seasonal tasks like storing the garden hose).

• Or schedule a 21-point inspection with a certified tech from Diligent Overhead Door.

🔊 Noise Check

• Listen during open/close cycles.

• Quiet = good

• Scraping or grinding = needs inspection

🔩 Hardware Tightening & Lubrication

• Tighten loose screws, bolts, and brackets

• Lubricate hinges, rollers, and springs using garage door lubricant

🛑 Sensor Test

• Place an object in the door’s path

• Try closing the door

• Door should stop or reverse

• Ensure sensor lights are steady and aligned properly

🧼 Track Cleaning & Inspection

• Use a ladder to inspect tracks for debris or rust

• Clean with brake or carburetor cleaner (not lubricant)

• Use a level to ensure tracks are straight and plumb

🛞 Roller Check

• Inspect for wear, chips, or cracks

• Replace damaged rollers not attached to cables

• Leave cable-attached rollers to professionals

• Replace rollers every 5–7 years

⚙️ Pulleys & Cables (Visual Only)

• Check for fraying or broken strands

• Do not attempt repairs — call a certified technician

⛓️ Chain or Belt Opener

• Tighten any slack or sagging

🧊 Weatherstripping

• Inspect for gaps, cracks, or flapping

• Replace if not sealing tightly against the frame

🎨 Door Surface Condition

• Check for rust, peeling paint, or dents

• Clean and repaint as needed (based on door material)

• Sand off light rust before repainting

⚖️ Door Balance Test

• Disconnect opener

• Lift door halfway manually

• Door should stay in place

• Should require minimal effort to lift

• If not balanced, call a pro

🔋 Battery & Remote Check

• Unplug opener to test backup battery

• Replace if non-functional

• Check and replace remote batteries and opener bulbs