AC Installation & Replacement in Lafayette, CA
A new air conditioner sized for your Lafayette 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 Lafayette. We size the system to your home, install it the way the manufacturer specifies, and handle the permit.
- From our Antioch shop
- About 29 miles southwest
- ZIP code
- 94549
- Power
- PG&E delivery, MCE generation
- Permits
- City of Lafayette Planning, then the Contra Costa County Building Inspection Department
Serving Lafayette
We serve every part of Lafayette, including Burton Valley, Happy Valley, Reliez Valley and Downtown Lafayette - it's about 29 miles southwest via SR-4, I-680 and SR-24 from our Antioch shop. Lafayette contracts building plan check and inspection to Contra Costa County, so a replacement starts with a city zoning check and then moves through the County's ePermits system. 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 Lafayette customers and BayREN's income-qualified EASE Home program.
Main roads
- SR-24
- St. Mary's Rd
- Happy Valley Rd
- Reliez Valley Rd
Around Lafayette
- Lafayette Reservoir
- Lafayette BART
- Briones Regional Park (north)
- Lafayette Library and Learning Center
- Cross of Lafayette memorial
- Lafayette-Moraga Regional Trail
- Lafayette Community Park
Other services in Lafayette
All servicesFor businesses
Questions before you call
Do I need a permit to replace my AC in Lafayette?
Yes. Replacing an AC, furnace or heat pump in California requires a mechanical permit - in Lafayette that comes from the City of Lafayette Planning, then the Contra Costa County Building Inspection Department, which the city contracts for building plan check and inspection. 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 Lafayette?
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 Lafayette?
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 Lafayette homes is mainly MCE's home energy programs for Lafayette customers and BayREN's income-qualified EASE Home program. Programs change often, so we check what's open for your address when we quote.