Call for a Competitive Estimate (707) 938-8481 Bay Area Plumbing & Mechanical Contractor Since 1915 HOME ABOUT SERVICES CLIENTS CAREERS CONTACT We invest in the communities where we live and work. Community Involvement The Peterson Mechanical Inc. team is strongly committed to investing in the communities we serve. We have a long history of supporting local organizations and projects, including the following: Boys & Girls Club of Sonoma Valley Sonoma Community Center Field of Dreams Sonoma Valley Little League Linked Learning Pathways Sonoma Valley High (Engineering, Design, and Technology) Rotary Pets Life Line Sonoma Valley Education Foundation Vintage Senior Center Sonoma Valley Babe Ruth Sonoma Community Health Center Sonoma Valley High School Graduation Night Sonoma Valley High School Boosters Club Valley of the Moon Teen Center Sonoma Valley Fire Department Shell-Vista Fire Protection District Sonoma Mentoring Alliance Sonoma Valley Hospital Quality & Safety from Design to Build Our full-service HVAC company has perfected high-quality mechanical engineering projects under strict safety guidelines in the following sectors: Commercial / Residential Education / Municipal Healthcare Technology Wineries / Hospitality Proud to Serve Northern California Since 1915 Contra Costa County Marin County Napa County San Francisco County Solano County Sonoma County At Peterson Mechanical Inc., community involvement in Sonoma, Napa, and the surrounding communities plays an important role in our company culture. Peterson Mechanical Inc. is a Sonoma-based mechanical contractor providing a single source for reliable mechanical systems in the San Francisco Bay Area. Specializing in HVAC, plumbing and refrigeration for a wide variety of market sectors including Healthcare, Technology, Education, Office Space, Hospitality, Winery, High Rise and Low Rise Residential. © 2021 Peterson Mechanical Inc.| CSLB: 171486 Privacy Policy | Sitemap