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Marathon HVAC Service INC.

 Began as a small family-owned business for heating, ventilation and air conditioning. We are committed to providing the best experience to Los Angeles, Orange and Riverside County. With over 30 years of experience, it's quality work you can rely on. 

Air Purifier Installation

Service Repair

"Service you can count on."

Our team takes pride in providing great customer service,

while helping residents get the most out of their cooling and heating systems. 

The life of our business depends on great customer referrals.

With years of experience, our techs always have a solution for our clients.

Services Offered


Fixing an Air Conditioner


"Keeps your unit running smoothly."

These are some of our maintenance checks when servicing each unit.

  •  The Technician will Check, Clean or Replace filters.

  •  Check freon pressures.

  •  Check current draw on motors.

  •  Check condenser coils. 

  •  Clean condensate drains.

  •  Check electrical.

  •  Check thermostat operation/calibration 

  •  Start unit and test for proper operation. 

Marathon HVAC strongly recommends at minimum 2 maintenances annually. Once before the Summer season and another before the Winter season. 

Industrial HVAC Installation

Free Estimates on New Installations

What can I expect?

When one of our technicians go out to do an estimate they can and do share their initial thoughts and notes. Once our office staff receives the techs data, our staff breaks down pricing and will let you know what they recommend on an email from one of our service managers. You will receive an emailed estimate.



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Contact Us

Mailing Address:

212 E. Rowland St. #317, Covina, CA. 91723




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