Serving Los Angeles, Riverside, and Orange Counties
Same-Day Service Available
Financing Available
10-Year Equipment Warranty
Terms & conditions apply*
$100 OFF MOEN SMART VALVE*
EXPIRES AUGUST 29, 2026
FREE HOME AIR CLEANER
EXPIRES AUGUST 29, 2026
$89 DRAIN CLEANING
EXPIRES AUGUST 29, 2026
For reliable cooling services, trust the experts at Marathon. Our skilled technicians are equipped to handle all your cooling needs, ensuring your home stays comfortable, efficient, and cool during even the hottest months.
Learn MoreOur heating services are designed to keep your home comfortable and efficient throughout the colder months. We provide expert solutions that ensure reliable performance and energy efficiency. Trust us to handle all your heating needs with professionalism and care.
Learn MoreFor dependable plumbing services, trust the experts at Marathon. Our experienced technicians provide professional plumbing solutions, from leak repairs and fixture installations to pipe replacements and routine maintenance. We’re committed to keeping your home’s plumbing system running efficiently, ensuring reliable water flow, improved performance, and peace of mind for you and your family.
Learn MoreFlexible comfort without the need for traditional ductwork. Marathon’s ductless systems provide efficient heating and cooling for individual rooms, additions, garages, or spaces that need better temperature control.
Learn MoreBreathe cleaner, healthier air with Marathon’s indoor air quality solutions. From air purifiers and filtration to humidity control, we help reduce allergens, dust, and airborne contaminants for a more comfortable home.
Learn MoreEnjoy efficient heating and cooling from one smart system. Marathon’s heat pump solutions help keep your home comfortable year-round while supporting reliable performance and energy-conscious comfort.
Learn MoreElevating Your Enterprise: Comprehensive HVAC Services for the Business World
Marathon has been proudly serving the greater Los Angeles area since 1990. What started with air conditioning and heating services has grown into a full-service home comfort provider that also delivers reliable, professional plumbing solutions. Our highly trained technicians specialize in everything from new system installations with the latest energy-efficient and smart-home technology to comprehensive heating repairs and indoor air quality upgrades. We also offer a complete range of plumbing services, repairs, replacements, drain solutions, and more, so your home stays comfortable, safe, and running smoothly year-round.
testimonials
The technician, Luis, was great. He checked on the items of concern and explained possible future maintenance that might be necessary.
Great customer service. Very well organized Company. Send picture of the tech prior to arrival.
What a professional and smooth experience. Eric is exceptional. Turn around time was fast and handled very well.
Marathon is so reliable and all their techs are knowledgeable and won’t quit til they get the job done right.
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warranty
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Our techs train directly on Carrier's latest systems.
FLEXIBLE PLANS
PAYMENTS
monthly plans
INTEREST
Choosing your perfect heating and air conditioner is step number 1. Now you get to choose which financing plan is right for you. For any further assistance call us or Service Finance today and we’d be happy to assist.
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