If your garage door seems to be sticking, or it sounds rough, the problem could be the tracks aren't aligned properly. The tracks provide the surface for the rollers when the garage door is in use. While it's a good idea to allow the professionals to handle this delicate job, you could try a basic alignment yourself first to see if it solves the problem.
Clean the Tracks
The first step is to inspect the tracks. Dirt and debris tend to collect between the metal ridges. If you find any, sweep or vacuum it out. Sometimes grease can build up. In this case, use a grease solvent and either a brush or a stiff rag to clean the tracks. At the end of the alignment, it'll be necessary to lubricate the rollers again – Angie's List recommends using a silicone-based lubricant for this job.
Look for Dents
While you're inspecting the tracks for dirt, watch out for any dents. If you find a dent, use pliers and a hammer to straighten it back out. If there is a tear in the metal, though, this requires either a more significant repair or track replacement. This is a job for the professionals.
Inspect Track Accessories
Your inspection should also take in the hinges that hold the track to the wall. If the screws are loose, the track has likely gotten out of alignment. Don't tighten them yet – you'll need to ensure the tracks are plumb first. While you're looking around, check the cables and springs that actually move the door. Any breakage or fraying is another reason to call for an expert like Garbers Of Richmond Inc because such repairs necessitate taking the garage door off of its mounting.
Check the Alignment
If your tracks are out of alignment, typically the door binds or rubs. In some cases, a gap can appear between the stop molding and the door itself. If the door is binding, you probably only need to make a small adjustment. Check the vertical plumb of both tracks with a level. To align a track, loosen the screws holding that track's hinges. Use a rubber mallet to tap the bottom of the track. Keep checking with the level until the track is plumb again, and then tighten all the screws in the hinge.
Adjust the Tracks
For a rubbing door or one with a gap, a bigger adjustment is needed. In this case, loosen both the hinge screws and the bolts securing the tracks to each other. Move the track until there is a uniform gap all around it. Tighten the bolts, and check the level. Once the track is plumb, tighten the screws. Repeat on the other track if necessary.
Don't put up with a binding, noisy garage door. Align the tracks to keep your door running smoothly.