Describe what happened
Say what the door was doing when it stopped: a bang, a grinding noise, a power cut or a vehicle that caught the door. That guides the inspection.
From the first call to the finished repair, here is what happens when an independent provider comes out to a Phoenix garage, what you may be asked and what you should expect to be told before any work starts.
Say what the door was doing when it stopped: a bang, a grinding noise, a power cut or a vehicle that caught the door. That guides the inspection.
Give the full address when you call, plus gate codes or HOA entry details. Clear the area in front of the door without trying to move it.
Ask the provider to explain the failed part, the repair options and the price. Work should start only once you agree to the scope.
Ask for travel, balance and the opener safety reverse to be checked in front of you, and for any changed remotes or keypads to be handed over working.
None of it is essential, but each item removes a guess. Cycle count in particular explains a lot in Phoenix, where the garage door is the entrance most households actually use and springs reach their rated life sooner than owners expect.

Keep away from a door that is open, leaning or visibly damaged, and keep children and pets out of the opening. Do not press the remote repeatedly to see if it will work this time, because each attempt can add damage when a cable or roller has already come loose.
Do not pull the emergency release on a door that is part way open or whose spring has broken. That cord disconnects the opener, and on an unbalanced door it can let the weight drop. If the door is fully closed and you need to get a vehicle out, releasing it is reasonable, but only if the door then stays where you put it.
Never attempt spring, cable or bottom-bracket work yourself. Those components are under high tension and are the cause of most serious garage door injuries.
Ask for the scope in writing: which parts were replaced, what was checked and what the technician noticed but did not touch. If a part was ordered, ask when it arrives and what the second visit involves. Keep the paperwork so the next inspection knows what is already fitted.
Read about the garage door services, find your city in the service areas, browse the common questions or compare repair against replacement before you decide on a bigger job.
Call and describe what the door is doing so a provider can plan the next step.