Regular air conditioning maintenance from HVAC professionals is not a “bonus” for a cooling system. It’s a necessity, the same way regular oil changes and maintenance for vehicles is. We encourage our customers to arrange for AC maintenance in Van Nuys, CA during the spring because it’s a great time to have it done: it prepares the system right before it will need to do the most work and have the system ready before the first major summer heat waves hit.
But if you didn’t have maintenance done in spring, that doesn’t mean the time ran out, or the deadline is past. There isn’t an end date for maintenance where it becomes useless to schedule—it’s an annual necessity, even if it gets done late.