SERVING THE NORTH BAY
CUSTOM DUCTWORK & REPLACEMENT
Duct Design and Replacement That Actually Fixes the Problem.
Most comfort and efficiency problems in a home trace back to the ductwork. Leaky ducts, poor layout, and undersized runs waste energy and leave rooms that never get comfortable no matter how good the equipment is. We replace and redesign duct systems using Manual D duct design methods, built around your home's actual layout and load requirements. Whether you have an older home with original ductwork, a complex floor plan, or a system that has never performed the way it should, we eliminate the leaks, fix the airflow, and balance distribution throughout the whole space.
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.
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Serving Sonoma, Napa, and Marin County. Honest recommendations. No pressure.