Your garage door is the biggest moving object in your house, and it's probably the most neglected piece of equipment on your property. Most homeowners never think about it until it stops working — or worse, until something breaks while it's in motion. Along the way, a few persistent myths have made that neglect feel harmless. It isn't. Here are three of the most common, and what to do instead.
Myth 1: "WD-40 is the right lubricant for the tracks and springs"
This is probably the most widely believed garage door myth, and it's backwards. WD-40 is a solvent and water-displacer, not a lubricant. Sprayed on springs, hinges, and rollers, it actually strips away existing grease and attracts dust and grit, which speeds up wear rather than preventing it.
What to use instead: a silicone-based spray lubricant or white lithium grease, applied to the springs, hinges, rollers, and the track-facing edge of the rollers (never the tracks themselves — tracks should stay clean and dry, not lubricated). Do this twice a year, ideally spring and fall.
Myth 2: "If the door still opens and closes smoothly, the springs are fine"
Torsion and extension springs wear out gradually, cycle by cycle, and a door can look and sound completely normal right up until a spring fails. Springs are rated for a set number of open-close cycles — often 10,000, roughly 7-10 years of average use — and age is a better predictor of failure than how the door currently feels.
The real test is a balance check, not a smoothness check: with the opener disconnected (pull the manual release cord), lift the door by hand to about waist height and let go. A properly balanced door will stay in place. If it drifts up, drifts down, or feels noticeably heavy, the springs are losing tension and it's time to call a professional. Springs are under extreme tension and are not a safe DIY repair — this is one job worth paying for.
Myth 3: "Garage door maintenance is a once-a-decade thing"
Garage doors get treated like they'll just keep working until they don't. In reality, a garage door is a system of small parts — rollers, hinges, cables, the auto-reverse safety sensors — that each have their own wear timeline, and small problems are cheap to fix while they're small.
A twice-a-year check takes about ten minutes: lubricate moving parts, look at the cables for fraying, confirm the auto-reverse sensors are aligned and working by placing a piece of wood on the ground where the door closes (it should reverse on contact), and listen for new grinding or popping sounds during operation. Catching a fraying cable or a misaligned sensor in spring or fall is a five-minute fix. Catching it after it fails is a service call, and in the case of the safety sensors, a real safety issue for anyone or anything in the door's path.
The takeaway
None of this requires a special skill set — it requires ten minutes, twice a year, and the right lubricant. Put a reminder on your calendar for the next seasonal check, and do the balance test the next time you're in the garage. If the door doesn't hold itself at waist height, that's your sign to call a pro before it becomes a bigger problem. A garage that runs the way it's supposed to starts with the door that lets you into it.