Urgent HVAC Repair in Antioch, CA and Contra Costa County
No heat or no AC? What to do and how to reach us
Some HVAC problems can wait a few days. Others can't: no cooling during an East County heat wave, no heat on a freezing night, water coming through a ceiling, or a breaker that trips every time the system starts. A gas smell is different from all of these. If you smell gas, leave the house now and call PG&E or 911 from outside. For everything else, this page covers what to check, what to do while you wait, and how to get on our schedule as early as possible.
Why choose Blue Star
We're an Antioch company at 3660 Wilbur Ave, licensed since 2006 under CSLB #880647, and East County is our home turf. When you call on a weekday, you talk to a real person about what's happening, what you've already checked and whether it's safe to keep running the system. If the schedule is full, we tell you up front instead of leaving you guessing. And when a part has to be ordered, we try to get you running safely in the meantime, then come back to finish the repair.
- Safety check before restart
- Tripping breakers traced
- Water leaks and drain clogs
- No-cooling calls in heat waves
- No-heat calls in cold snaps
- Temporary fix if parts wait
Where we work
East County heat drives most urgent calls. Antioch hit 109 degrees on July 3, 2024, and Brentwood and Oakley often run a few degrees warmer than the bay side, so a dead AC in July is a real health risk, especially for older residents in Summerset, Trilogy and Rio Vista. January nights in Antioch average in the upper 30s. If you can't stay cool while you wait, Antioch's Nick Rodriguez Community Center and the Brentwood Community Center have served as cooling centers, so check with the city.
Major corridors
- SR-4
- SR-160
- Wilbur Ave
- Lone Tree Way
- Railroad Ave
- SR-242
- I-680
- SR-12
We do this across our service area:
Each link opens that town's heating and air page.
4.9 stars on Google
Read more reviewsColton was great. He found the problem right away and did a temporary fix to get my a/c running until he could get the right part ordered. He also made sure every inside was working well.
Questions we hear
I smell gas. Should I call you?
Not first. If you smell gas, don't touch light switches, the thermostat or anything that could spark. Get everyone out of the house, then call PG&E's gas emergency line at 1-800-743-5000 or 911 from outside. PG&E will check for leaks and shut off the gas if needed. Once the utility says it's safe, call us and we'll find and repair the problem with your furnace or other HVAC equipment.
What can I check before I call?
Start at the thermostat: is it set to cool or heat, and does it have power or fresh batteries? Check the breakers for the furnace or air handler and the outdoor unit, and reset a tripped breaker only once. If it trips again, leave it off. Make sure the filter isn't clogged and the furnace door is closed tight. If water is overflowing from a drain pan, turn the system off at the thermostat.
How do I get the earliest appointment?
Call as early in the day as you can, since that's when openings are easiest to fit. Tell us what the system is doing, the brand and age if you know them, and whether anyone at home is elderly, very young or medically at risk in the heat or cold, so we understand how urgent it is. If we're booked, we'll say so plainly and give you the first realistic opening.
Are you open 24/7?
No, and we won't pretend otherwise. Our office is open on weekdays, and that's when we book service calls. If your system quits at night or over a weekend, use the safety steps on this page, keep cool or warm as best you can, and call us the next business day. For a gas smell, smoke or a burning electrical smell, call PG&E or 911 right away.
My AC won't start after a power outage. What now?
After an outage or a PG&E Public Safety Power Shutoff, turn the thermostat off, wait until power has been back for a few minutes, then turn the system on again. Many outdoor units have a built-in restart delay. If it still won't run, check the breakers. An outdoor unit that hums but won't start, or a breaker that keeps tripping, usually points to a failed part such as a capacitor or contactor, and that needs a technician.
Related services
All servicesBlue Star Heating & Air is just a call away!
If your system is down, call (925) 584-2428 and tell us what's happening. We'll give you the earliest opening we have and an honest idea of when that is.