Air Conditioner Installation in Walnut Creek and the Bay Area
Whether you’re adding cooling to a home that never had it or replacing a unit that’s past its prime, we size the system to your home and your ductwork — an oversized AC costs more upfront and cools worse.
Installation covers the condenser, coil, line set, electrical, and thermostat, finished with a refrigerant charge verified by gauges, not guesswork.
Every AC installation includes: Load calculation and equipment sizing; Condenser and evaporator coil installation; Line set, electrical, and condensate connections; Thermostat setup and integration; Refrigerant charge verified under real operating conditions; Free estimate before any work begins.
Book with OTTER HVAC at (650) 900-0440. Flat $69 diagnostic on repairs. Free in-home estimates on new installations. EPA 608, OSHA, and NATE certified technicians.
Serving Concord, Walnut Creek, Pleasant Hill, San Ramon, Danville, Oakland, Berkeley, San Francisco, and nearby East Bay cities. Hours: 7:00am–5:00pm, seven days a week.
Related: All services · Pricing · Contact · air conditioner repair
Frequently asked questions
How much does it cost to install a new air conditioning system?
Installation cost depends on your home, existing ductwork, and the equipment you choose, so we don’t quote a flat number over the phone. Every new installation includes a free estimate, and any diagnostic visit is a flat $69.
What types of air conditioning systems do you install?
We install and service central air conditioners, ductless split systems, rooftop package units, and heat pumps, along with the ductwork and thermostats that go with them.
Can you replace just the outdoor unit?
Sometimes — it depends on the age and compatibility of the indoor coil and line set. We’ll tell you honestly whether a matched replacement or a partial one makes more sense for your system.
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References and credentials
- U.S. DOE Energy Saver
- EPA Section 608
- EPA Section 608 refrigerant certification
- U.S. Department of Energy — Energy Saver
Authority sources: U.S. DOE Energy Saver · EPA Section 608