Commercial Heating and Air Solutions You Can Count On, All Year Long
When indoor comfort affects productivity, your business needs an HVAC system built for performance and dependability. We deliver professional Commercial Heating and Air services that keep your workplace running efficiently no matter the season.
Comprehensive Commercial HVAC Services
From system design and installation to preventive maintenance and fast repairs, our licensed commercial specialists handle every detail so you can focus on your operations.
System Design, Installation & Replacement
We install and replace high-efficiency commercial HVAC systems customized to your facility’s layout, energy requirements, and long-term goals.
Commercial HVAC Repairs
Our technicians quickly diagnose and repair all major commercial HVAC systems to minimize downtime and keep your business running smoothly.
Preventive Maintenance Plans
We provide scheduled maintenance that extends equipment life, prevents costly breakdowns, and ensures compliance with local HVAC standards.
Energy Efficiency Upgrades
We improve system performance and reduce energy costs with smart thermostats, airflow balancing, and advanced commercial retrofits.
Indoor Air Quality & Ventilation Solutions
We enhance building health and comfort with professional filtration, ventilation, and air purification solutions designed for commercial environments.
Why Choose Marathon for Your Commercial Needs?
When it comes to choosing the right contractor for your business it pays to go with Marathon
Licensed & Insured
Fully certified technicians with experience on all major AC brands.
Tailored Solutions
Tailored solutions for commercial buildings
Flexible Scheduling
Convenient appointment windows to fit your business operations.
Upfront Pricing
Thorough inspection, cleaning, and testing for peak performance.
Trusted Locally
Serving Los Angeles, Riverside & Orange County
Signs You Need Service for Your Commercial Building
If your commercial building is struggling with an of the following issues give us a call!
Rising Energy Costs
Unexpected increases in utility bills often indicate your HVAC system is working harder than it should.
Hot and Cold Spots
Uneven temperatures across offices, warehouses, or tenant spaces signal airflow or equipment performance issues.
Unusual Noises or Odors
Banging, rattling, or musty smells point to mechanical problems or poor indoor air quality.
Frequent System Failures
Repeated shutdowns or repair calls mean your equipment needs professional attention or updated maintenance.
Declining Employee or Tenant Comfort
Complaints about stuffy rooms, inconsistent temperatures, or poor air quality suggest your system is no longer meeting demand.
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
Request Your Commercial Services Service Today
Keep your facility productive and comfortable year-round. Contact Marathon Plumbing, Heating, and Air today for expert Commercial Heating and Air solutions designed for your business.