
Marathon Plumbing, Heating and AC Repair
Marathon Plumbing, Heating and AC Repair
Marathon Plumbing, Heating and AC Repair is based in Covina and has served the greater Los Angeles area since 1990. It began as an air conditioning and heating company and later expanded into plumbing services.
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Business Highlights
- It began as a family-owned and operated AC and heating company.
- It identifies as an independent dealer of American Standard heating and air conditioning products.
- It lists contractor license 1129622.
- It describes its service as licensed and insured.
Service Area
Los Angeles, Riverside and Orange counties.
Active Business Listing
Marathon Plumbing, Heating and AC Repair is one of 11 HVAC companies ProsGrade lists in Azusa, California.
12 services listed, including AC repair, AC installation and AC maintenance plans. Open Monday to Saturday. 321 reviews.
- Verified listing details
- Service information
- Customer review signals
- Photo gallery
- Public contact information
- Published local profile
How This Business Compares
How Marathon Plumbing, Heating and AC Repair compares with the other 10 HVAC companies on ProsGrade in Azusa, using public Google ratings and review counts.
- Has more Google reviews (321) than 8 of the 10 other Azusa HVAC companies on ProsGrade.
Services Covered
12 services- AC repairall makes and models
- AC installationcentral air conditioners, ductless mini-splits and packaged units
- AC maintenance plansfull annual tune-ups and priority care
- AC coil cleaningevaporator and condenser coils
- Ductless mini-split servicesinstallation, repair and maintenance
- Furnace and heating services
- Heat pump servicesinstallation and repair
- Wall heater servicesrepairs, maintenance plans and installation
- Thermostats and zoning
- Air duct and attic services
- Indoor air quality servicesHEPA air filters and area air scrubbers
- Plumbing and drainage services
Reviews
What customers say
Customers praise professional, considerate service and clear explanations, and one customer appreciated preventative-maintenance tips without pressure. Matt also received thanks for routine maintenance and a register changeout requested to address airflow; that customer said it made a big difference.
Customer Reviews
Mark LaVigne
Leslie Denkers
Marian Cotkin
Nickolas Mamula
Christian Urzua
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Frequently Asked Questions
What is included in Marathon’s AC maintenance plan?
Annual tune-ups include a system inspection, filter cleaning or replacement, thermostat testing, coil cleaning and a refrigerant check.
How does Marathon approach an AC installation?
It assesses the home’s size, insulation and layout, tests performance, airflow and temperature accuracy, and finishes with a walkthrough and system demo.










