Contact OTTER HVAC for same-day scheduling
Call (650) 900-0440 for same-day scheduling when slots remain. We usually pick up; if we miss you, we call back the same day during business hours.
Email otterhvacr@gmail.com. Visit or mail 2939 Santos Ln, Walnut Creek, CA 94597. Hours: 7:00am–5:00pm, seven days a week. You can also send a request through the contact form on this page.
Tell us whether you need a repair diagnostic ($69 flat), a free installation estimate, or help choosing a maintenance plan. Include your city or ZIP so we can confirm coverage.
OTTER HVAC is a family-owned East Bay HVAC company. We install and repair furnaces, central AC, heat pumps, mini-splits, rooftop units, VRF systems, ductwork, and thermostats.
EPA 608, OSHA, and NATE certified technicians. Transparent quotes after testing—no commissioned sales scripts. Serving Concord, Walnut Creek, Oakland, Berkeley, San Francisco, and neighboring cities.
Related: Pricing · Service areas · FAQ
Frequently asked questions
What are your hours?
We are available 7:00am to 5:00pm, seven days a week.
Explore related pages
References and credentials
- Google Maps location
- Yelp
- EPA Section 608 refrigerant certification
- U.S. Department of Energy — Energy Saver
Authority sources: Google Maps location · Yelp