3rdGen Heating & Cooling

3rdGen Heating & Cooling holds a 5.0-star rating across 168 reviews and operates as a residential and commercial HVAC contractor serving Berkeley, the Inner East Bay, San Francisco, Marin County, Lamorinda, Walnut Creek, and the Tri-Valley region. The company handles heat pump installations, full-system replacements, ADU HVAC, and new construction projects, alongside commercial design-build work for multifamily and tenant improvement scopes.

This contractor distinguishes itself as a Diamond Contractor offering heat pump rebates and financing programs, with specialized capabilities in Mitsubishi mini-split systems and VRF multi-zone configurations. Their residential services include Manual J load calculations ensuring properly sized equipment, and they maintain dedicated contact numbers for different service areas across the Bay Region.

Reviewers consistently praise the team led by Devin, with customers noting same-day service availability, clean installations, and thorough explanations of equipment options. One reviewer described a Mitsubishi mini-split installation as "one of the cleanest I've seen," while another mentioned the team traveled to Modesto for a duplex project, taking time to educate the homeowner throughout the process. Technicians Cesar and Juan were specifically recognized for their cleanup practices during residential installations.