AC Installation & Replacement in Northgate, Walnut Creek, CA
A new air conditioner sized for your Northgate home
A new AC is a big purchase. Blue Star Heating & Air helps Northgate 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 21 miles southwest
- ZIP code
- 94598
- Power
- PG&E delivery, MCE generation
- Permits
- City of Walnut Creek Building Division
Serving Northgate
From our Antioch shop on Wilbur Avenue, Northgate is about 21 miles southwest via Kirker Pass Road and Ygnacio Valley Road, and we cover the whole area, including Northgate High School, Foothill Middle School, Walnut Acres Elementary and Shell Ridge Open Space. Northgate is inside Walnut Creek, so HVAC changeouts need a city permit filed online, furnace replacements are handled over the counter, and most jobs are homeowner decisions rather than HOA work. 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 Northgate customers and BayREN's income-qualified EASE Home program.
Main roads
- Ygnacio Valley Rd
- North Gate Rd
- Oak Grove Rd
Around Northgate
- Northgate High School
- Foothill Middle School
- Walnut Acres Elementary
- Shell Ridge Open Space nearby
Other services in Northgate
All servicesQuestions before you call
Do I need a permit to replace my AC in Northgate?
Yes. Replacing an AC, furnace or heat pump in California requires a mechanical permit - in Northgate that comes from the City of Walnut Creek Building Division. 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 Northgate?
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 Northgate?
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 Northgate homes is mainly MCE's home energy programs for Northgate customers and BayREN's income-qualified EASE Home program. Programs change often, so we check what's open for your address when we quote.