Thermostat Installation in Walnut Creek and the Bay Area
A thermostat swap looks simple until the wiring doesn’t match, the C-wire is missing, or the new smart stat isn’t compatible with your furnace board. We install smart and standard thermostats and make sure they actually control your system correctly.
We’ll configure schedules, connect the app, and walk you through it — so the "smart" part actually saves you money instead of confusing everyone in the house.
Every thermostat installation includes: Compatibility check with your HVAC system; Correct wiring, including C-wire solutions; Smart thermostat app and Wi-Fi setup; Schedule configuration for your routine; Full heating and cooling operation test.
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 · furnace repair
Frequently asked questions
Which smart thermostats do you install?
All the common ones — Nest, Ecobee, Honeywell, and others. If you haven’t bought one yet, we’ll recommend what fits your system, not what has the biggest markup.
My new thermostat doesn’t work — can you fix it?
Very often it’s a wiring or compatibility issue from a DIY install. A $69 diagnostic covers finding and usually fixing it in the same visit.
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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