Same day air conditioning repair in Union City, furnace repair, heat pump service and 24/7 Emergency HVAC Services in Union City. Licensed, insured technicians. Affordable heating repair. Upfront flat-rate pricing. No overtime fees, ever.
When the air conditioning quits on the hottest afternoon of the year in Union City, you do not need a callback next week — you need a licensed technician at the curb today. First Call Air Conditioning & Heating Repair provides same day AC repair in Union City, air conditioning repair, heating repair, furnace repair and complete HVAC service across Alameda County, with a live dispatcher answering (209) 309-1834 24 hours a day.
Serving Union City and the surrounding Alameda County communities means knowing the local building stock: attic air handlers baking in summer heat, undersized returns in older homes, mini splits in new additions and ADUs, and condensers packed with dust and debris. We diagnose for the conditions your system actually lives in.
Heat waves and cold snaps do not keep business hours. Our Union City emergency line is staffed by a live dispatcher 24/7 for emergency AC repair, 24 hour heating repair and same day HVAC repair. Households with infants, seniors or medical needs are prioritized during extreme weather. Call (209) 309-1834 and we will tell you honestly whether you need a truck tonight or a morning appointment.
We handle residential HVAC repair for single-family homes, condos, townhomes, apartments, ADUs, mobile homes and rentals in Union City, plus light commercial rooftop units and split systems for offices, retail, restaurants and warehouses across Alameda County. Property managers and landlords can set up priority accounts with consolidated billing.
Besides Union City, our technicians cover Alameda, Albany, Berkeley, Castro Valley, Dublin, Emeryville and surrounding neighborhoods throughout Alameda County — and every other city in California.
Real feedback from homeowners and business owners who called us first.
“Our AC died at 8pm during a heat wave and First Call had a technician at the house before 10. He showed me the burned-out capacitor, quoted the price before touching anything, and we had cold air the same night. No after-hours surcharge either. — Union City”
“Woke up to no heat with a newborn in the house. They moved us to the front of the line, found a cracked ignitor, and had the furnace running in under an hour. Honest, fast, and they actually explained what went wrong. — Union City”
“Three companies quoted us a new system. First Call was the only one that measured airflow and did a real load calculation instead of guessing. The new unit is quieter and our summer bill dropped noticeably. — Union City”
Talk to a live dispatcher right now and get a licensed technician on the way — often the same day. Upfront flat-rate pricing before any work begins. No overtime charges nights, weekends or holidays.
☎ (209) 309-1834AC not cooling, blowing warm air, leaking water, tripping the breaker or making noise? We diagnose and repair every brand of central air, heat pump and mini split.
Repair bills stacking up? We size, quote and install high-efficiency air conditioning systems with real load calculations and airflow testing — not guesswork.
No heat, cold air from the vents, a furnace that won't ignite, or a system that short cycles — we repair gas furnaces, electric heat, boilers, heat pumps and wall units.
Every gas and electric furnace brand serviced, with combustion and carbon monoxide safety testing included on every visit.
A properly installed furnace is quieter, safer and cheaper to run. We handle sizing, venting, ductwork, gas lines and permits.
Heat pumps run year-round, so they fail more often. We repair reversing valves, defrost boards, charge problems and auxiliary heat faults.
Heat waves and cold snaps don't keep business hours. Our dispatch line is staffed 24 hours a day, 7 days a week, holidays included.
Most emergency breakdowns we see were preventable. A 21-point seasonal tune-up keeps capacity high and utility bills low.
Ductless systems deliver room-by-room comfort with no duct losses — perfect for older homes, additions, ADUs and apartments.
A miswired thermostat can look exactly like a dead AC or furnace. We install, wire and program smart thermostats correctly the first time.
Leaky, dirty ducts waste up to 30% of the air you paid to heat and cool. Cleaning, sealing and filtration upgrades fix comfort problems fast.
Downtime costs money. We service rooftop package units, split systems and light commercial equipment on your schedule, including after hours.
If you searched any of these, you are in the right place — call (209) 309-1834.