SERVING THE NORTH BAY
Furnace & Air Conditioning Repair
Fast, Accurate Repairs for Homes and Light Commercial Properties Across the Bay Area.
When your furnace stops heating or your AC stops cooling, you need someone who can diagnose it right the first time. We service all major brands of furnaces and air conditioning systems for residential and light commercial properties across Sonoma, Marin, and Napa County. No guesswork, no unnecessary parts, no runaround. We show up, find the problem, fix it with quality components, and make sure everything is running properly before we leave.
Your Comfort is our Legacy.
Comfort isn’t luck, it’s built. At Legacy Heating & Air, we design, install, and repair systems with precision, from accurate load calculations to properly engineered ductwork. The result is consistent comfort, lower energy waste, and a system that finally performs the way it should.
LICENSED & INSURED
CSLB Certified Technicians
WHO OFFER
Furnace & A/C Repair
When your system breaks down, we fix it fast and fix it right. We accurately diagnose furnace and AC issues, use quality parts, and make sure everything is running properly before we leave. No guesswork, no shortcuts, just reliable repairs you can trust.
custom ductwork & replacement
Most comfort issues start in the ductwork. We redesign and replace ducts using proper Manual D calculations to eliminate leaks, improve airflow, and balance temperatures throughout your home. Ideal for older homes, difficult layouts, or systems that never felt right.
Furnace & a/c Replacement
Full system replacements built around your home, not a one-size-fits-all unit. We use proper Manual J load calculations to size your system correctly, improving comfort, efficiency, and long-term performance. Lower energy bills, better airflow, and a system that actually keeps up.
Request a Free estimate.
Serving Sonoma, Napa, and Marin County. Honest recommendations. No pressure.