(510) 201-4774

HVAC in Union City, CA

AC Down? Furnace Out? We Make It Simple

Your HVAC system works hard every single day. Union City HVAC keeps it running with expert repairs, right-sized replacements, and maintenance plans built for local homes.

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Same-Day & Emergency Service
★★★★★ 5.0 / 5 stars (150+ reviews)
4.9 ★ Average Rating
5,000+ Systems Serviced
Same-Day Service Available
Upfront Pricing
Heating & Cooling Experts
Local & Family-Owned
Same-Day Service
Experienced Techs
Our team of technicians providing HVAC in Union City, CA

Fast Help When Your Comfort Quits

Sweating upstairs and freezing downstairs is no way to live. Union City HVAC pairs homeowners with seasoned technicians who respond quickly, diagnose accurately, and know exactly what it takes to keep a home comfortable here.

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Complete Heating & Cooling Solutions

We take on the full range of comfort problems, from failed capacitors and cracked heat exchangers to ductless installs and commercial rooftop units, with the hands-on experience the job calls for.

Furnace Repair

Gas and electric furnace repairs with combustion and safety checks included.

HVAC Replacement

Honest repair-or-replace advice, and clean changeouts when it's time.

AC Repair

Same-day air conditioner repairs with an upfront price before work starts.

Ductless Mini Split Installation

Mini-splits for the rooms that never get comfortable.

Air Duct Cleaning

Source-removal duct cleaning, not a quick vacuum and a coupon.

Heating Repair

No-heat calls handled fast, with a safety check on every visit.

Heat Pump Installation

Year-round heating and cooling from one efficient system.

HVAC Repair

Heating and cooling repairs on every major brand, most finished in one visit.

AC Installation

Central air installs with the charge, airflow, and drainage verified.

Furnace Installation

Furnace replacements matched to your home, not the biggest unit on the truck.

HVAC Maintenance

Coils cleaned, charge checked, safeties tested, twice a year.

HVAC Installation

Complete heating and cooling systems designed around your home's actual load.

The right HVAC pro is just a call away.

  • Repairs and Installations
  • All-Brand Service
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4.8/5150 reviews

AC Repair & Furnace Repair in Union City

When the air conditioning quits or the furnace won't light, you need a technician who finds the real problem and fixes it the same day.

AC Repair in Union City

A dead air conditioner on a hot afternoon is the call we run most. The usual culprit is a small electrical part, a capacitor or contactor, that our trucks carry, so most AC repairs are finished in one visit. You get a clear price before any work starts, and if the system is old enough that replacement makes more sense, we'll show you both numbers.

  • Warm air coming from the vents
  • Condenser fan not spinning
  • Frozen coil or iced-over lines
  • Condensate backing up around the air handler
AC repair pricing and details

Furnace Repair in Union City

When the furnace clicks but never lights, lights and shuts off, or runs without warming the house, the cause is usually one component. We test the ignition, airflow, and safety controls to find it. Every visit includes a safety check of the burners and venting, and you'll know the price before we start.

  • No ignition when the heat calls
  • Burners light, then shut off within seconds
  • Blower running but the air isn't warm
  • Loud banging, squealing, or grinding at startup
Furnace repair pricing and details

Common Heating & Cooling Problems in Union City

If something seems off with your comfort system, it usually comes down to one of these. Here are the problems we get called about most across Union City, and how we put a stop to each.

15+ Years of Local Experience
3,000+ Comfort Problems Solved
Same Day Service Available
98% Problems Solved

What Sets Us Apart

Same-Day Response

An HVAC system never fails at a convenient time. We schedule fast, show up on time, and arrive with the parts to finish the job.

Local Experts

The person at your door knows HVAC inside and out, from superheat readings to error codes, because we hire seasoned pros and keep them sharp on the methods that actually work.

Honest Recommendations

You'll get a clear written quote before any work starts, and the price you approve is the price you pay. That's why so many customers call us back.

We Fix the Cause

A proper repair includes the details: static pressure check, capacitor test under load, combustion analysis on furnaces, and a clean condensate path that won't back up in August.

Trusted HVAC Service in Union City

For over 12 years, Union City HVAC has been a leading provider for HVAC service in this part of CA. Our locally based technicians understand the unique challenges that local comfort systems face, from the age of local housing stock and its ductwork quirks to the code requirements local inspectors actually check.

Our team goes beyond the quick patch. We check the airflow, the charge, and the electrical supply driving the failure common to properties around here. This local knowledge means faster diagnosis, fewer repeat visits, and systems that last.

Ready to Talk to a Local Expert?

Speak directly with a local HVAC expert. Upfront pricing, no obligation.

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★★★★★ Rated 4.9/5 by local homeowners
HVAC in Union City, CA: HVAC technician walking up to a home with his tools
15+ Years Serving the Area
Upfront Pricing & Quotes
Same-Day Service Available
97% Customer Satisfaction

From First Call to Total Comfort

Our 4-step process is designed for accuracy, speed, and zero surprises on the invoice.

Technician going over the diagnosis with a homeowner in Union City, CA
01

Tell Us What's Happening

Ring (510) 201-4774 whenever it suits you. We'll talk through the symptoms, tell you if anything needs immediate attention, and lock in a visit time that fits your schedule.

02

Thorough Evaluation

We don't guess. The diagnostic covers the full system and turns into a straightforward recommendation with the cost spelled out up front.

03

Fix It Right

We complete the approved work on the spot whenever possible: quality parts, code-compliant connections, and no shortcuts hidden behind the air handler.

04

Test & Protect

To keep your comfort reliable long-term, we can set up seasonal maintenance that cleans coils, checks the charge, and catches small issues before they strand you in the wrong season.

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Upfront pricing · Same-day service available

Why Fast Response Matters in Union City

There's no mystery to how we handle an urgent failure. Here's the step-by-step of what we do after a homeowner calls for fast help.

The call

Your Call, Our Priority

You call (510) 201-4774. A real person picks up, assesses your situation, and books the soonest available technician.

Right away

Technician Arrives On-Site

Your technician shows up ready to work, not just to look. The common failure parts ride on every truck, so the visit moves straight from diagnosis into repair.

The visit

Diagnosis and Repair

The fault is pinpointed, capacitor, motor, refrigerant leak, control board, or the compressor itself. Then, we complete the repair on the spot whenever parts allow, or quote the replacement with real numbers if the unit is done.

Ongoing

Lasting Protection

We offer spring and fall tune-up plans, with reminders when you're due, to clean coils and test components before they cost you a compressor. A maintained system lasts years longer and runs cheaper every month.

No Cooling Right Now?

HVAC systems don't fix themselves. Pick up the phone and we'll line up fast, reliable service before the problem grows.

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What Union City Homeowners Say

★★★★★
Rated 4.8/5 · 150 reviews

"The furnace kept short-cycling, kicking on and off every few minutes and never really warming the house. The technician found a clogged filter had tripped the limit switch and cleaned the flame sensor while he was in there. It's run flawlessly ever since, and he showed me which filter to buy going forward."

SO
Steve O.
Union City, CA

"Our restaurant's rooftop unit failed on a Friday with a full weekend of reservations booked. Their team had us cooling again before the dinner rush. They clearly understood what downtime costs a Union City business, and they came back the next week to fully service the second unit. They've got all our locations now."

MT
Marcus T.
Union City, CA

"The furnace quit at 11 pm with the temperature dropping fast and a newborn in the house. They answered right away and talked me through checking the thermostat and breaker, then had a technician out first thing. We had heat again by mid-morning. Absolute pros."

DH
Dana H.
Union City, CA

Built on Trust, Backed by Results

We treat your home the way we'd treat our own: thoroughly, honestly, and with an eye on the long term. Here's the standard you can count on from us every time.

Experienced Technicians

We don't send a rookie with a gauge set and a hope. Each technician brings genuine field experience in diagnosis, safe gas and electrical work, and clean installation, the kind of depth that turns a service call into a lasting fix.

Right-Sized, Code-Compliant Work

HVAC sizing is math, not guesswork, and we show ours. Our team calculates the right capacity for your home and installs it to local code, permits included where required.

Maintenance That Pays for Itself

Our team focuses on keeping systems alive with simple, scheduled care. If you want years more from your current equipment, our seasonal tune-up plans clean coils, verify the charge, and test every safety control. It's that simple. This focus on longevity is why so many homeowners recommend us.

HVAC Service Across the Union City Area

Fast service throughout the metro area. Our technicians are positioned to reach every community we serve quickly.

HVAC Service in Sacramento

Complete HVAC care in Sacramento. Repairs, installations, duct cleaning, and seasonal tune-ups.

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HVAC Service in Riverside

Experienced HVAC technicians serving the Riverside area. Upfront pricing and honest recommendations.

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HVAC Service in San Jose

Keeping San Jose comfortable in every season. Diagnose, repair, replace, done right the first time.

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HVAC Service in Los Angeles

Trusted heating and cooling service for Los Angeles homes and businesses. Fast response when the AC or furnace quits.

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HVAC Service in San Diego

Reliable comfort solutions for San Diego homeowners. From quick repairs to full system replacements and upgrades.

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HVAC Service in San Francisco

San Francisco's go-to team for AC repair, furnace service, heat pumps, and mini-splits. Same-day appointments available.

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Know Your System Better

What our team wants every homeowner to know about heating and cooling.

Your Questions, Answered

Most air conditioner repairs in Union City run between $150 and $650, depending on the part. Common fixes like capacitors, contactors, and fan motors sit at the lower end, while compressor and refrigerant work costs more. If the system is beyond economical repair, full replacement typically ranges from $5,000 to $12,000 installed depending on size and efficiency. We diagnose first and give you a clear, upfront quote before any work begins.
A good rule of thumb: if the system is under 10 years old and the fix is a component, capacitor, motor, igniter, sensor, repair usually makes sense. If the compressor or heat exchanger has failed, the unit is past 12 to 15 years old, or repairs are stacking up season after season, replacement is the smarter investment. Our technicians walk you through both numbers honestly so you can decide with real information.
We offer same-day and emergency HVAC service throughout the Union City area. Our trucks carry the most common parts, capacitors, contactors, igniters, flame sensors, and universal motors, so the majority of repairs are completed in a single visit. Even full system replacements are usually scheduled within days, not weeks.
For many Union City homes, yes. Modern heat pumps heat and cool from a single system, run far more efficiently than electric resistance heat, and current models perform well even in cold weather. They cost more upfront than a basic AC swap, which is why we run the numbers on your actual usage and utility rates before recommending one.
Yes. Our technicians work on all major residential and commercial brands and system types, central air conditioners, gas and electric furnaces, heat pumps, packaged units, and ductless mini-splits. We carry universal parts on the truck and can source brand-specific components quickly when needed.

Get Your Comfort Back.

HVAC problems only grow with time. Our team can respond fast. Call now for a fast quote.

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