AC Installation & Replacement in Rossmoor, Walnut Creek, CA
Replace your old AC with the right system
A new AC is a big purchase. Blue Star Heating & Air helps Rossmoor homeowners compare AC-only, full split-system and heat pump options, sizes the equipment to the house instead of guessing, and gives you a free quote for new equipment.

- From our Antioch shop
- About 28 miles southwest
- ZIP code
- 94595
- Power
- PG&E delivery, MCE generation
- Permits
- City of Walnut Creek Building Division plus a Rossmoor alteration permit from the Mutual Operations Division
Serving Rossmoor
From our Antioch shop on Wilbur Avenue, Rossmoor is about 28 miles southwest via I-680 and Rossmoor Parkway, and we cover the whole area, including First Walnut Creek Mutual, Dollar Clubhouse, Event Center and Gateway Complex. Every heating or air-conditioning alteration or replacement in Rossmoor needs an alteration permit from the Mutual Operations Division, and a City of Walnut Creek building permit may also be required. 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 Rossmoor customers and BayREN's income-qualified EASE Home program.
Main roads
- Rossmoor Pkwy
- Tice Valley Blvd
Around Rossmoor
- Dollar Clubhouse (historic)
- Event Center
- Gateway Complex (movie theater)
- five clubhouses total
- 18-hole and 9-hole golf courses
Other services in Rossmoor
All servicesQuestions before you call
Do I need a permit to replace my AC in Rossmoor?
Yes. Replacing an AC, furnace or heat pump in California requires a mechanical permit - in Rossmoor that comes from the City of Walnut Creek Building Division plus a Rossmoor alteration permit from the Mutual Operations Division, which is required for all heating/air-conditioning alterations and replacements. 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 Rossmoor?
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 Rossmoor?
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 Rossmoor homes is mainly MCE's home energy programs for Rossmoor customers and BayREN's income-qualified EASE Home program. Programs change often, so we check what's open for your address when we quote.
