For most Los Angeles commercial buildings, the baseline is two professional service visits per year, one in spring before cooling season and one in fall before heating season. Those visits cover filter changes, coil cleaning, refrigerant checks, belt and motor inspection, electrical tightening, condensate and drain clearing, and airflow verification.
Some commercial settings need more frequent attention. Restaurants, medical offices, and gyms typically run on quarterly service because of grease, humidity, and dust loads. Data centers and server rooms are usually on monthly inspections. Filters alone often need changing every one to three months depending on the building's air quality and operating hours. Skipping service is one of the top causes of premature equipment failure and higher utility bills, a maintenance contract almost always pays for itself in avoided emergency calls.
