About Cornerstone Air Conditioning
Founded in 1988, Cornerstone Air Conditioning has built a reputation in Spokane, WA as a straight-shooting family-run hvac contractor that doesn't push system replacements when a repair will do. The team is unusually rigorous about indoor air quality and ventilation work in addition to core heating and cooling, and is one of the few local shops that will quote both a repair and a replacement option on the same visit so homeowners can make an informed call. NATE-certified, state-licensed, EPA refrigerant-handling certified, and proudly insured.
Cornerstone Air Conditioning serves homeowners across Spokane, WA and surrounding ZIP codes including 99201, 99202, 99205, 99208, 99223. Pricing is up-front and quoted in writing before any work begins, with no obligation if the estimate isn't right for your project.
Services offered
- Refrigerant leak detection
- Manufacturer warranty work
- Indoor air quality systems
- Whole-home humidifier
- Commercial RTU service
- Spring & fall tune-ups
- Smart thermostat install
Service area
Cornerstone Air Conditioning covers Spokane and the surrounding metro, typically responding to addresses within 25–35 miles of 99201. Same-day appointments are commonly available for non-emergency requests booked before noon, and 24/7 emergency dispatch is offered for active leaks, electrical hazards, no-heat/no-cool calls, and lockouts when applicable.
Licensing & insurance
FixNearMe verifies that Cornerstone Air Conditioning holds an active WA contractor license (#WA-242317) and carries general liability insurance covering work at residential properties. We re-verify licensing annually and remove any pro whose status lapses or whose review pattern deteriorates.
How to request a quote
Use the free quote form on this page to send your job details directly to Cornerstone Air Conditioning and up to two other nearby hvac pros in Spokane. You'll receive up-front written quotes — usually within an hour during business hours — so you can compare apples to apples before booking.