HVAC Repair in Marin County, CA

JM HVAC provides residential HVAC repair across Marin County for heating and cooling systems.

Call (707) 541-6921
  • Coastal corrosion and salt-air damage identified before they cause full system failure
  • Root-cause diagnosis reduces the chance of repeat breakdowns
  • Older Marin County homes get repairs matched to their specific system age and layout
  • Improved airflow and heat transfer after coil and filter service
  • Lower monthly energy use when a struggling system runs at proper efficiency
  • One technician handles the job start to finish, with no handoffs or miscommunication
A technician inspecting an outdoor HVAC condenser unit at a single-family home in Marin County, California. The unit shows signs of coastal weathering, with the technician checking coil and electrical connections during a repair visit.

Expert HVAC Repair in Marin County, CA

When your heating or cooling system stops working, JM HVAC is the Marin County sole proprietor you call for honest, hands-on repair. We service furnaces, air conditioners, heat pumps, and air handlers in homes across the county. Marin County's coastal air carries salt and moisture that corrode coils, degrade electrical connections, and shorten equipment life faster than in inland areas. Older homes, which make up a large share of Marin County's housing stock, often run aging systems that need a technician who can diagnose the root cause, not just swap a part. We inspect the full system, identify what failed and why, and explain your options in plain language before any work begins. Whether your furnace won't ignite on a cold morning or your AC is cycling but not cooling, JM HVAC gives you a clear picture of your system's condition and a repair path that makes sense for your home.

What's included

  • Coastal corrosion and salt-air damage identified before they cause full system failure
  • Root-cause diagnosis reduces the chance of repeat breakdowns
  • Older Marin County homes get repairs matched to their specific system age and layout
  • Improved airflow and heat transfer after coil and filter service
  • Lower monthly energy use when a struggling system runs at proper efficiency
  • One technician handles the job start to finish, with no handoffs or miscommunication
Licensed HVAC Contractor
24/7 Emergency Service
Residential and Commercial Specialist
10+ Years Bay Area Experience
Full System Installation and Repair

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HVAC Repair FAQ

Common questions about hvac repair in Marin County, CA.

Yes, JM HVAC repairs furnaces, heat pumps, and air conditioners throughout Marin County. One call covers both your heating and cooling needs.

That symptom often points to a refrigerant issue, a dirty coil, or a failing compressor. JM HVAC diagnoses the exact cause before recommending any repair.

Salt air and coastal moisture corrode coils and electrical connections faster than in inland areas. Regular inspection catches that damage early and keeps your system running longer.

Yes, JM HVAC works on older systems common in Marin County's housing stock. We assess what can be repaired and give you honest options.

Check that your thermostat is set correctly and your filter is not clogged. If the system still won't run or heat and cool properly, call JM HVAC for a full diagnosis.

Yes, heat pump repair is part of JM HVAC's service in Marin County. Heat pumps are common here and require a technician familiar with their specific components.

Still have questions?

Call us directly. Real answers, no scripts.

Call (707) 541-6921

What Sonoma County homeowners say.

5.0
3 Google reviews

Worked with us?

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Jeff was professional, on time, and explained everything clearly before starting the work. I finally feel like I found an HVAC tech I can trust.

Karen T. Google review

Our heating went out and JM HVAC got us taken care of quickly. Honest pricing and clean work. We won't call anyone else.

Marcus L. Google review

I've used JM HVAC twice now and the service has been consistent both times. Straightforward, knowledgeable, and easy to work with.

Diana R. Google review

Proudly Based in Rohnert Park, CA

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Hours

  • Monday 5:00 AM - 6:00 PM
  • Tuesday 5:00 AM - 6:00 PM
  • Wednesday 5:00 AM - 6:00 PM
  • Thursday 5:00 AM - 6:00 PM
  • Friday 5:00 AM - 6:00 PM
  • Saturday 7:00 AM - 5:00 PM
  • Sunday 7:00 AM - 5:00 PM

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