AC Installation & Replacement in Walnut Creek, CA
A new air conditioner sized for your Walnut Creek home
Whether your old air conditioner has finally quit or you want to add central air, Blue Star Heating & Air installs new AC systems, full split systems and heat pumps in Walnut Creek. We size the system to your home, install it the way the manufacturer specifies, and handle the permit.
- From our Antioch shop
- About 25 miles southwest
- ZIP codes
- 94595, 94596, 94597, 94598
- Power
- PG&E delivery, MCE generation
- Permits
- City of Walnut Creek Community Development Dept., Building Division
Serving Walnut Creek
Walnut Creek is about 25 miles southwest via SR-4, SR-242 and I-680 from our Antioch shop, and we serve all of it, including Rossmoor, Northgate, Tice Valley and Rancho San Miguel. Walnut Creek requires an online city permit for every HVAC replacement, though furnace swaps are over-the-counter, and Rossmoor and other condo communities add their own mutual or HOA rules. Many statewide heat pump rebates are closed for 2026, so when we quote we check what's still open for your address, such as MCE's home energy programs for Walnut Creek customers and BayREN's income-qualified EASE Home program.
Main roads
- I-680
- SR-24
- Ygnacio Valley Rd
- N. Main St
- Iron Horse Trail
- Contra Costa Canal Trail
Around Walnut Creek
- Broadway Plaza
- Lesher Center for the Arts
- Heather Farm Park
- Civic Park
- Lindsay Wildlife Museum
- Ruth Bancroft Garden
- Shadelands Ranch Museum
- Boundary Oak Golf Course; Shell Ridge
- Lime Ridge
- Acalanes and Sugarloaf open spaces; Mount Diablo State Park access; Walnut Creek BART
Other services in Walnut Creek
All servicesFor businesses
Questions before you call
Do I need a permit to replace my AC in Walnut Creek?
Yes. Replacing an AC, furnace or heat pump in California requires a mechanical permit - in Walnut Creek that comes from the City of Walnut Creek Community Development Dept., Building Division. Permitting is online-only. Most replacements also need Title 24 duct leakage testing verified by a third-party HERS rater. We pull the permit and coordinate the inspection.
How much does a new AC cost in Walnut Creek?
It depends on the size of the home, the type of system, the efficiency level and the condition of your ductwork. We give you a written quote after looking at the house, with more than one option.
Are there rebates for a new system in Walnut Creek?
Some, but fewer than before. TECH Clean California and California's HEEHRA heat pump rebates are fully reserved, and the federal 25C tax credit ended for systems installed after 2025. What's left for Walnut Creek homes is mainly MCE's home energy programs for Walnut Creek customers and BayREN's income-qualified EASE Home program. Programs change often, so we check what's open for your address when we quote.