Call (951) 470-9700 for HVAC Services
Monday-Friday 8:00AM - 5:00PM
Licensed HVAC Contractor

Licensed HVAC Contractor

Over 29 Years of Experience

Over 29 Years
of Experience

Service & Repair for all HVAC Makes and Models

Cost-Effective HVAC

Highest Quality Workmanship


Reliable, On-time HVAC & Mechanical Services

On-time &

Competitive Pricing for AC, Heating & Mechanical Needs

Very Competitive

Norco's Trusted Mechanical Contractor for Repairing &
Maintaining Commercial HVAC Systems

Since 1995, Johnson's Mechanical has been a trusted commercial hvac contractor for Norco, Corona, Riverside, Eastvale, and surrounding areas of the Inland Empire. We have over three decades of experience in commercial heating and air conditioning services, ventilation, energy management, and building automation systems and have earned an excellent reputation due to our punctuality, reliability, and quality workmanship. Our quotes are always accurate and fair, backed by honest recommendations and based on our extensive industry knowledge and expertise.

We Service All Major Brands of Commercial Heating & Cooling Systems

Our experienced hvac technicians are trained and licensed to work on all types of commercial hvac equipment and heating and cooling technology, including:

  • Rooftop Packaged Units
  • Chillers
  • Cooling Towers
  • Boilers
  • Heat Pumps
  • Energy Management
  • EVAP Coolers
  • Exhaust Fans
  • Make-Up Air Units
  • Automation Systems
  • Ductwork
  • Air Handlers
  • Thermostats and Sensors

Cost-Effective HVAC System Services for Norco Businesses

Whether you need ductwork system maintenance for your warehouse, cooling tower repair for your hotel, or temperature sensor troubleshooting for your office building, Johnson's Mechanical can get the job done on time, on budget, and to the highest industry standards. For most commercial applications, we recommend regular maintenance of your hvac system every 6 months to ensure superior indoor comfort. This keeps your system working in optimal condition and extends the life of your equipment. It also helps prevent costly breakdowns that require major repairs.

We serve a wide range of businesses throughout the Norco and Corona area, including:

  • Restaurants
  • Commercial kitchens
  • Gas stations
  • Data rooms
  • Office buildings
  • Warehouses
  • School districts
  • Community colleges
  • Hospitals
  • Hotels
  • Nursing homes
  • Convenience stores
  • Strip malls
  • And more

In addition to routine maintenance, we also excel at tenant improvements and building renovations.

Featured Customer Review


Polite, clean, punctual and professional. Tim really helped me out in a time of need. Our AC went down in the middle of a heat wave. With my special needs child and wife at home, that was a big problem. He knew exactly what to do and got it done in a timely manner. Highly recommended!

Jason W., Rancho Cucamonga, CA Via Yelp Testimonial

View More Reviews

Call Now to Book an Appointment or Service Call In and Near Norco, Corona, and Riverside

Give us a call today to schedule a service call, maintenance request, or new installation estimate. We offer onsite consultations and competitive quotes for businesses throughout Norco, Corona, Riverside, Eastvale, Rancho Cucamonga, and surrounding areas.

Johnson's Mechanical Provides Comprehensive HVAC Services to Homeowners &
Businesses Throughout the Inland Empire

Service Area Map

We serve the following cities and communities:

  • Chino, CA
  • Corona, CA
  • Eastvale, CA
  • Norco, CA
  • Ontario, CA
  • Rancho Cucamonga, CA
  • Riverside, CA
  • Jurupa Valley, CA
Arrow Contact Us