Garage door spring snapped and now you can't get your car out. Or the opener died, or the door is off its tracks. These things always happen at the worst time - usually when you're running late. Most repairs are same-day if you call a specialist, not a general handyman.
Spring replacement is the most common garage door repair and also the most dangerous DIY project people attempt. The springs are under serious tension and people get hurt. A pro can replace them in an hour for $150-$300. They'll also check the cables, rollers, and tracks while they're there - and tell you if the opener motor is on its way out.
New openers run $250-$600 installed with a smart controller. Full door replacement runs $800-$2,500 depending on style. Red flag: anyone who quotes spring replacement over $400 without a good reason. Also, make sure they warranty the springs - cheap springs break again in 6 months.