AC Repair in Vacaville, CA
$89 Diagnostic
- $19.95 for MVP members
- 10% off repairs for military and seniors
When the AC quits in the middle of summer, you want help today, not next week. We work all over Vacaville, our shop in Dixon is about 20 minutes away, and we offer same-day service, 7 days a week. Call (707) 678-1784 or book online.
$89 diagnostic, $19.95 for MVP members.
Our AC repair work in Vacaville
- Fixing air conditioners in Vacaville since 1991. Thousands of them, on both sides of I-80.
- There is a good chance we have already worked on your street.
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Right here in Vacaville
We live here too. A good number of us call Vacaville home, so when you say you are downtown or over by the Nut Tree, we know right where you are. If you served, or you are a senior, repairs are 10% off.
Common AC problems we repair
The two repairs we make most every summer: fixing refrigerant leaks and replacing blown capacitors.
- Warm air or uneven cooling
- Weak airflow from the vents
- Frozen evaporator coils
- Refrigerant leaks
- Clogged condensate drains or water around the indoor unit
- Thermostat and control problems
- Blown capacitors, blower motor and fan problems
Need AC repair somewhere else in Solano and Yolo County? See our AC repair page.
Furnace or water heater trouble too? Start at our Vacaville service page.
Why Vacaville homeowners call Greiner
- Family-owned and serving Solano and Yolo County since 1991
- Same-day service, 7 days a week
- We answer the phone with “How can we make you smile?”
- Friendly, well-groomed, polite technicians. Our reviews say so.
- Rated 5.0 on Google with more than 1,600 reviews (September 2026)
- California contractor license CSLB #365955
Vacaville questions we hear
How fast can a technician get to my home in Vacaville?
Same-day appointments are available 7 days a week, and the drive from our Dixon shop takes about 20 minutes. Book online to see today’s openings.
Do you cover my part of Vacaville?
Yes. We work in every part of Vacaville, north and south of I-80.
My AC runs but blows warm air. What should I check first?
Make sure the thermostat is set to Cool and below the room temperature, check the air filter, and check that the breaker for the outdoor unit has not tripped. If it still blows warm, or you see ice on the refrigerant lines, turn the system off and call us.