Cooling and air conditioning services for the Bay Area
When the Bay Area heats up, OTTER HVAC keeps homes and light commercial spaces cool. We install and repair central air conditioners, ductless mini-splits, rooftop package units, VRF systems, and heat pumps used for cooling.
Repairs start with a $69 diagnostic. New cooling installations include a free estimate and refrigerant charge verification under real operating conditions.
Typical cooling issues we diagnose: weak cooling, frozen coils, short cycling, strange noises, thermostat faults, and systems that need refrigerant every summer—usually a leak, not a “top-off.”
Book seven days a week, 7:00am–5:00pm, seven days a week. Call (650) 900-0440. Based in Walnut Creek with East Bay coverage including Concord, Oakland, Berkeley, and San Francisco.
EPA 608, OSHA, and NATE certified technicians. Free in-home estimates for new AC, heat pump, and mini-split installs.
Related: AC repair · AC installation · Mini-split installation
Frequently asked questions
Do you offer same-day AC repair?
We schedule seven days a week from 7am to 5pm. Call (650) 900-0440 to check same-day availability.
Explore related pages
References and credentials
- DOE air conditioning guide
- EPA 608
- EPA Section 608 refrigerant certification
- U.S. Department of Energy — Energy Saver
Authority sources: DOE air conditioning guide · EPA 608