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.
Heating Contractor
Furnace Repair in Marin County, CA
JM HVAC provides furnace repair for homeowners across Marin County, CA.
- Restored heat output so your home stays warm through Marin's wet winter months
- Accurate diagnosis of ignition, sensor, and airflow faults before any parts are replaced
- Improved safety by identifying carbon monoxide risks from cracked heat exchangers or blocked venting
- Reduced energy waste from a furnace that runs at its correct efficiency level
- Direct service from the owner on every job, with no subcontractors or handoffs
Expert Furnace Repair in Marin County, CA
When your furnace stops working, Marin County homes feel the chill fast. JM HVAC handles furnace repair for homeowners throughout the county, from coastal areas like Sausalito and Mill Valley to inland communities like San Rafael and Novato. We diagnose and fix the most common failures: ignition problems, faulty flame sensors, blower motor issues, tripped safety switches, and restricted airflow from clogged filters or blocked vents. Marin's mix of older bungalows, hillside homes, and mid-century builds means furnaces often sit in tight crawlspaces or closets. We work in those spaces without cutting corners. The county's mild but damp winters, with heavy rainfall from November through March, mean a furnace that runs poorly can leave your home cold and humid for weeks at a time. JM HVAC is a sole proprietor operation, so you get direct, honest service on every call. Call us to schedule your furnace repair in Marin County.
What's included
- Restored heat output so your home stays warm through Marin's wet winter months
- Accurate diagnosis of ignition, sensor, and airflow faults before any parts are replaced
- Improved safety by identifying carbon monoxide risks from cracked heat exchangers or blocked venting
- Reduced energy waste from a furnace that runs at its correct efficiency level
- Direct service from the owner on every job, with no subcontractors or handoffs
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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FAQ
Furnace Repair FAQ
Common questions about furnace repair in Marin County, CA.
A repair is usually the right call if the furnace is structurally sound and the fault is isolated to one component. JM HVAC will inspect your system in Marin County and give you a straight answer before any work begins.
Ignition failures, dirty flame sensors, and clogged filters are the most frequent issues we see in Marin County. Older homes with furnaces in tight crawlspaces can also develop restricted airflow that causes the system to overheat and shut off.
Turn the furnace off and call for service before running it again. Banging or rattling sounds in a Marin County home can point to a loose blower wheel, cracked heat exchanger, or failing motor, all of which need hands-on inspection.
Yes, we work in the confined crawlspaces and utility closets common in Marin County hillside and older bungalow-style homes. We bring the right tools to access the system safely and complete the repair correctly.
Short cycling in Marin County homes is often caused by a dirty filter, a faulty flame sensor, or an overheating furnace tripping its safety limit switch. JM HVAC will pinpoint the cause and fix it so your system runs a full heat cycle.
Yes, JM HVAC provides furnace repair across Marin County, including coastal and inland communities. Call us to confirm service availability for your specific area.
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Proudly Based in Rohnert Park, CA
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Phone
(707) 541-6921Hours
- 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