How to lubricate a garage door (and what to never use)

The seven points that need lubricant, the two that must stay dry, which product to buy, why WD-40 is the wrong can, and how often a garage door needs doing in Las Vegas dust.

Use a garage door lubricant, either a silicone spray or a white lithium spray made for doors, on the hinges, the roller stems and bearings, the springs, the bearing plates and the opener rail. Keep it off the track and off the nylon wheel of a nylon roller. In the Las Vegas Valley the interval is twice a year rather than once, because fine desert dust turns a wet film into grinding paste far faster than it does in a mild climate. The whole job takes about 20 minutes, one can and a rag.

What you need to lubricate a garage door

One can of garage door lubricant, a clean rag, a step ladder and about 20 minutes. That is the whole list. The product matters more than anything else you do, so it is worth being specific about it.

• A garage door lubricant: a silicone spray or a white lithium spray, sold for exactly this job. Either one is fine. Both cling to metal and both stay put in heat, which is the property that matters here.
• A clean rag or paper towel: for wiping the parts before you spray and catching the drips after.
• A step ladder: the springs, the bearing plates and the opener rail are all overhead and none of them should be sprayed from a stretch.
• A piece of cardboard: optional, held behind a part to catch overspray so it does not land on the wall or the car.

Before you spray anything, close the door fully and cut the power to the opener at the wall or the breaker. A door that starts moving while your hands are near a hinge is the one avoidable hazard in this job. Then wipe the dust off the parts you are about to lubricate. Spraying over a layer of grit just glues the grit in place, which is the opposite of what you came to do.

The seven points to lubricate

Work along the door from the bottom up, then finish at the opener. A light coat is right at every point. Lubricant that drips is lubricant that is collecting dust on the floor rather than working in a bearing.

1. Hinges. Spray the pivot point where each hinge folds, at the joint between the sections. Wipe the drips.
2. Roller stems and bearings. Spray the stem where it enters the hinge and the exposed ball bearings at the outer end. On a steel roller the whole wheel can take a light coat. On a nylon roller the wheel gets nothing.
3. Torsion springs. Run a light coat along the full length of the coil, above the door. The coils rub against each other as the door moves and that rubbing is most of the groan a dry door makes.
4. End bearing plates. The two plates at either end of the torsion bar, one on each side of the opening. A mist into the bearing is enough.
5. Center bearing plate. The plate in the middle of the bar, above the center of the door. Same light mist.
6. The lock bar and its brackets. If the door has a manual lock, the bar and the slots it slides through.
7. The opener rail or screw shaft. A chain drive gets a light coat on the rail where the trolley slides. A screw drive gets a thin film of lithium grease along the threaded shaft. A belt drive gets nothing on the belt itself.

When you are done, restore power, then open and close the door three or four times to work the lubricant through the bearings. The door should be noticeably quieter by the third cycle. If it is not, the noise was never dryness and the next section explains what it probably is.

Where you should not spray

Two parts of a garage door are meant to stay dry, and both of them get sprayed by mistake all the time.

The track is the big one. The rollers are supposed to roll along the track, not slide along it. Lubricant on the inside face of the track turns a rolling contact into a sliding one, and in this valley it does something worse: the wet film catches airborne dust and sets into a grinding paste that wears the rollers and the track together. If a track is dirty, clean it with a rag and leave it dry.

The nylon wheel of a nylon roller is the other. The bearing at the center of a nylon roller wants lubricant. The white wheel that touches the track does not, for the same reason the track does not. If you are replacing worn steel rollers, nylon sealed-bearing rollers are the quieter choice and they are on our published Las Vegas price list as a set of 10 for $135 to $195 installed.

What not to use

The standard blue and yellow WD-40 can is the wrong product for this job, and it is the one almost everybody reaches for. It is a solvent and a water displacer. It is very good at loosening a seized bolt and at cleaning a part, and both of those jobs involve dissolving grease. Sprayed into a roller bearing or along a spring, it thins and carries away the lubricant that is already there, and what is left behind evaporates. A door that went quiet for a week and came back louder than before is the usual result.

Motor oil and household three-in-one oil have the opposite problem. They stay wet, they run, and anything that stays wet on a garage door in Las Vegas becomes a dust magnet within days. Cooking spray and furniture polish belong to the same category. Grease from a tub, applied by hand, is too heavy for a hinge and too messy for anything overhead.

There is one point of confusion worth clearing up, because it costs people a second trip to the store. WD-40 the brand sells a specialist white lithium grease spray and a specialist silicone spray, and those are perfectly good garage door lubricants. It is the original multi-use product in the blue and yellow can that is not. Read the can, not the logo.

How often to lubricate a garage door in Las Vegas

The national answer to this question is once or twice a year. Out here the honest answer is twice, and in a garage that faces a dirt lot or an open desert edge it is closer to every four months. The reason is not heat by itself. It is the fine valley dust, which is in the air year round and heavier after a monsoon wind, landing on every wet surface on the door. Heat does the second half of the job: a summer garage runs hot enough for long enough that thin oils simply leave.

Two markers are more useful than a calendar. The first is noise. A door that has started to groan or squeal on the way up is telling you the coils and the bearings are dry. The second is dust you can see on the springs and the bearing plates. If there is a visible film up there, the lubricant underneath it is already carrying grit. The full maintenance schedule, including the parts of it that are not lubrication, is written out in how often a garage door needs servicing in Las Vegas.

What 20 minutes of lubricant is actually buying you

The case for doing this is easiest to see in the parts that dry running destroys, priced from the same published Las Vegas price list we quote on the phone. A set of 10 nylon sealed-bearing rollers is $135 to $195 installed. A pair of lift cables is $140 to $220, and cables plus drums are $195 to $275. A standard pair of torsion springs is $295 to $425, and a high-cycle pair is $395 to $525. End bearing plates are $95 to $145 a pair when they go in with a spring job.

Those are the components that run dry, then run hot, then wear. A can of garage door lubricant is a few dollars and it covers most of a year. If you would rather it was checked and done properly along with the balance, the cable tension, the opener force and the safety reverse, our Las Vegas tune-up and 25-point safety inspection is $89, or $69 on a first visit, on the same published list.

When lubrication will not fix it

A dry door is noisy in a particular way: a groan or a squeal that runs through the whole travel and goes quiet after you lubricate it. Four other problems sound like maintenance and are not, and it is worth knowing which is which before you spend an afternoon on it.

• A bang, then a door that will not lift. That is a spring, and the door is now hundreds of pounds of dead weight on the opener. Springs are replaced in pairs and this is not a homeowner job at any skill level. It is garage door spring repair.
• A door that sits crooked or has jumped its track. Lubricant will not pull it back, and forcing it bends the track. That is off-track and cable work.
• Grinding or a motor that runs while the door stays still. The noise is inside the opener, usually a stripped gear or a broken trolley, and no amount of spray on the rail reaches it. That is garage door opener repair.
• A frayed or slack cable. Visible fraying, or one side of the door sitting lower than the other, means the cable is failing and the door is no longer balanced. Stop using it.

A useful test in between: pull the release cord with the door closed and lift the door by hand to about waist height. A balanced door stays roughly where you leave it. A door that drops or shoots up is out of balance, and the springs and the opener are both being asked to do more than they should, which no lubricant fixes.

Angels Garage Doors has been owner operated in the Las Vegas Valley since 2015, common springs, rollers, cables and opener parts ride on the truck, and there is no charge for the diagnosis if you decide not to go ahead. Call or text (702) 744-7333.

And if the noise came back a week later, or never went at all, the lubricant was never the answer. A sound that stays in one place above the door is a bearing and a growl at the motor is the opener, neither of which a spray will touch: what each garage door noise actually means in Las Vegas sorts the three apart and prices each one.