Professional AC Tune-Up Services
Keep your air conditioner efficient, reliable, and ready for summer. Our experts provide AC tune-ups that boost system performance, lower energy usage, and prevent unexpected breakdowns.
Limited Time Offer
Save on your next cooling service. Check out our current promotions!
Why Schedule an AC Tune-Up?
Regular AC maintenance isn’t just a recommendation, it’s essential for keeping cooling costs low and preventing mid-summer failures.
Restore Cooling Efficiency
A clean, well-tuned AC system cools your home faster while using less energy.
Prevent Costly Breakdowns
Routine inspections help catch small issues early, avoiding major repairs later.
Lower Energy Bills
A properly maintained AC runs smoother and consumes less electricity.
Improve Indoor Comfort
Eliminate weak airflow, hot spots, and temperature inconsistencies throughout your home.
Extend Equipment Lifespan
Yearly service reduces wear and tear, helping your system last longer.
Why Choose Marathon for AC Maintenance?
When it comes to keeping your AC running dependably, you can count on our trained, certified HVAC professionals.
Licensed & Insured
Fully certified technicians with experience on all major AC brands.
Comprehensive Tune-Ups
Thorough inspection, cleaning, and testing for peak performance.
Flexible Scheduling
Convenient appointment windows to fit your routine.
Upfront Pricing
Thorough inspection, cleaning, and testing for peak performance.
Trusted Locally
Serving Los Angeles, Riverside & Orange County
What’s Included in Our AC Tune-Up
Coil & Condenser Cleaning
Removes dirt and debris to restore peak cooling capacity.
Air Filter Inspection or Replacement
Improves airflow and indoor air quality.
Refrigerant Level Check
Ensures proper cooling performance and prevents compressor strain.
Electrical & Safety Component Testing
Identifies worn or unsafe components before they fail.
Thermostat Calibration
Ensures accurate temperature readings and consistent comfort.
Drain Line Cleaning
Prevents clogs, leaks, and water damage.
Signs You May Need AC Service
If you’re noticing any of the issues below, it may be time to schedule a professional AC tune-up:
Warm Air from Vents
Your system may be low on refrigerant, dirty, or dealing with airflow problems.
Weak or Uneven Airflow
Often caused by clogged filters, dirty coils, or a failing blower motor.
Unusual Smells or Noises
Burning odors, grinding, or rattling may indicate failing components.
Rising Energy Bills
A struggling AC uses more electricity to cool the same space.
Frequent Cycling
Short cycling can signal thermostat issues, low refrigerant, or overheating.
System Age 10+ Years
Older systems need more frequent inspections to prevent costly failures.
Serving Los Angeles, Riverside, and Orange Counties
At Marathon Plumbing, Heating, and Air, we’re proud to provide reliable furnace maintenance plans for homeowners and businesses throughout Los Angeles, Riverside, and Orange County. Our reputation is built on transparent pricing, expert service, and a commitment to keeping our customers comfortable year after year.
Los Angeles County
Riverside County
Orange County
San Bernardino
Pasadena
Long Beach
Related Cooling Services
Explore our full range of cooling solutions designed to keep your home running efficiently:
Fast, reliable fixes for all AC makes and models
Keep your system running consistently and efficiently
Upgrade to a modern, energy-saving system
Annual maintenance to boost efficiency and prevent breakdowns.
Thermostat Services
Smart thermostat installations & repairs
Ductless Mini-Split Services
Installation, repair, and maintenance for high-efficiency zoned cooling systems.
Schedule Your AC Tune-Up Today
Stay ahead of summer heat. Keep your system running at its best with a professional AC Tune-Up from Marathon Plumbing, Heating, and Air.