Heating & Air Conditioning in Walnut Creek, CA

Get top-notch HVAC services in Walnut Creek, CA. Trust ATC Mechanical to deliver top-of-the-line upgrades. Call us at (925) 818-8084 today!

We are a Home Performance, HVAC and Insulation Contractor who specializes in heat pumps, ventilation, insulation and vapor barriers. We perform deep energy retrofits to greatly increase a home's energy efficiency, comfort, indoor air quality, durability. Our work is for the homeowner who wants things done right the first time. We take great care in designing systems/energy upgrades specific to each home in order to solve each customer's specific issues/concerns. Our goal is to define your expectations clearly and then exceed them. Our services: 1) Assessments (this is step 1 in the energy upgrade process). 2) Ducts - highly sealed, insulated, sized and engineered. 3) High Efficiency HVAC - Heat pumps, air conditioners, hydronic home heating & cooling systems, heat pumps. 4) Crawlspace Vapor Barriers. 5) Insulation - Attic, Ducts, Walls & Floor. 6) Heat Pump Water Heaters. 7) Air Sealing - reducing the leakage of the building. 8) Ventilation Systems. Established in 2008. Eco Performance Builders prides itself on quality design and installation to provide you with the most energy efficient and comfortable house possible. Keith O'Hara and brother Scott O'Hara created Eco Performance Builders to utilize their skills and understanding of green building and whole house energy retrofitting (which includes insulation, duct work, heat pumps, air conditioners, air sealing, etc.) Please contact us! We look forward to helping you meet your energy, health and comfort goals.

We provide expert HVAC and electrical services, including installation, maintenance, and repair of air conditioning, heating, and electrical systems