24/7 emergency service · A real person answers
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24/7 Emergency HVAC Service in Fremont, Nights, Weekends & Holidays

Emergency HVAC service in Fremont is available 24 hours a day, 7 days a week from ComfortFlow. Call (510) 602-2968 and a real person answers, not a voicemail. We prioritize no heat on cold nights, no cooling during heat waves for vulnerable households, and leaking water heaters. You get the after-hours price on the phone before we dispatch.

Systems tend to fail at the worst time: the hottest afternoon of September, the coldest night of December, the evening before a holiday. Our shop is on Bay Street in Irvington, close to every Fremont neighborhood, and our on-call technician carries the parts most likely to get you running tonight.

What counts as an emergency

  • No heat when overnight temperatures drop into the 30s or 40s
  • No cooling during a heat advisory, especially for seniors, infants or anyone with medical needs
  • Water leaking from a water heater, furnace or air handler
  • Burning or electrical smell from HVAC equipment
  • Carbon monoxide alarm sounding (leave first, then call 911)

What to do while you wait

If you smell gas, leave the house and call PG&E at 1-800-743-5000 or 911 from outside. If a water heater is leaking, close the cold-water valve on top and turn the gas control to pilot or off. If your AC iced up, switch it to fan only to melt the ice. These steps protect your home and often speed the AC repair or furnace repair once we arrive.

Fair after-hours pricing

We tell you the after-hours dispatch fee on the phone. If the problem can safely wait until morning, we will say so and save you the fee. Comfort Club members on the Complete plan pay no after-hours charges.

Looking for more than one fix? ComfortFlow is a full-service HVAC company in Fremont, so one call covers heating, cooling and hot water.

24/7 emergency: questions we hear often

Do you really answer at night?

Yes. Calls to (510) 602-2968 are answered 24/7 by a person who can dispatch a technician.

How fast can you arrive in an emergency?

Most Fremont emergency calls get a technician within a few hours, often sooner overnight when roads are clear.

Is emergency service more expensive?

There is an after-hours fee, which we quote on the phone before we come out. Repair prices are the same flat rates.

Do you cover Newark, Union City and Milpitas after hours?

Yes, our 24/7 service covers all of Fremont plus Newark, Union City and Milpitas.

Too warm, too cold, or just not right?

Give us a call. We'll listen, ask a few questions and find a time that works for you.

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