Family-owned HVAC crew built on honest service
OTTER HVAC is a small, local team of certified technicians serving the Bay Area with honest diagnostics and real explanations—no sales pressure. We are based in Walnut Creek and work residential and light commercial jobs.
Our approach is simple: show up prepared, test before we talk, put findings in writing, and recommend the repair or replacement that actually fits the home. Homeowners hire us for clear communication as much as technical skill.
EPA 608, OSHA, and NATE certified technicians. We keep trucks stocked for common failures so many repairs finish on the first visit when parts allow.
Hours are 7:00am–5:00pm, seven days a week. Call (650) 900-0440 or book online for a flat $69 diagnostic or a free installation estimate. Address: 2939 Santos Ln, Walnut Creek, CA 94597.
We serve Concord, Walnut Creek, Pleasant Hill, San Ramon, Danville, Dublin, Pleasanton, Livermore, Oakland, Berkeley, San Francisco, and neighboring East Bay cities with the same diagnosis-first process on every visit.
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Frequently asked questions
Is OTTER HVAC family-owned?
Yes. We are a family-owned local HVAC company based in Walnut Creek, California.
Do you use high-pressure sales tactics?
No. We document findings first and only proceed after you approve a clear quote.
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References and credentials
- NATE certification
- OSHA safety standards
- EPA Section 608 refrigerant certification
- U.S. Department of Energy — Energy Saver
Authority sources: NATE certification · OSHA safety standards