All Phase Heating & Air Conditioning

All Phase Heating & Air Conditioning has served Grass Valley and surrounding Nevada and Placer County communities since 1995, earning a 4.9-star average across 149 reviews. As a Bryant Factory Authorized Dealer, the family-owned contractor holds the highest performance certifications in the region. Their technicians service both residential and commercial properties, handling installations, repairs, and maintenance for air conditioners, furnaces, heat pumps, and ductless systems. The office operates Monday through Friday from 8 AM to 5 PM, with emergency after-hours callback available.

What distinguishes All Phase from other regional contractors is their Bryant factory authorization, which requires ongoing employee training and strict customer care standards. They back every installation with a 100% Satisfaction Guarantee, and they offer financing options including a current promotion of $500 off a complete heating and cooling system replacement. The company also specializes in indoor air quality solutions, addressing concerns specific to this mountainous region's seasonal wildfire smoke and variable humidity.

Reviewers consistently mention specific technicians who went above and beyond. Stephen Bauer praised Brad, Craig, Triston, Brian, and Andrew for installing a new system in record time after weather delays prevented initial work, keeping his wife from spending another cold night without heat. Connie Mattis described how the team applied her repair payment toward a new furnace when her 23-year-old unit could not be saved, calling the gesture 'nothing could be more fair.' Rick Rice noted that technicians Rich and Chris 'undercharged' for a complex Goodman furnace repair requiring replumbing.