Air Conditioning Repair in Fontana, CA

Sometimes the signs are obvious, sometimes they sneak up on you. If you notice any of these six warning signs, your AC system might be overdue for a checkup.

Warm air blowing from the vents

If your AC is running but not cooling, that’s a problem. You might be dealing with a refrigerant leak, a frozen coil, or a busted compressor. Whatever it is, it’s not going to fix itself.

Higher energy bills

When your AC struggles, your energy bills rise. Dirty filters, duct leaks, or a system on its last legs can all cause your cooling costs to spike. We’ll get to the root and bring your bills back down.

Strange odors

If your vents smell musty, burnt, or just plain funky, something’s off. It could be mold in the ductwork, burnt wiring, or stagnant water in the system. Either way, don’t ignore it.

Short cycling

AC turning on and off too often? That’s hard on your system and your wallet. Short cycling wastes energy and usually signals a deeper issue, like a miscalibrated thermostat or overheating.

Loud or unusual noises

Grinding, squealing, rattling, these are your AC’s way of crying for help. A professional tune-up or repair can often silence the problem before it turns into something expensive.

Reduced airflow

If certain rooms feel warmer or your vents are barely pushing air, the culprit could be anything from dirty filters to ductwork damage. We’ll clear things up and get airflow moving again.

Trust your gut. If your AC system feels off, it probably is. The sooner we catch the issue, the faster and cheaper it’ll be to fix.

Most air conditioning repairs take between one and three hours. It depends on the problem. A thermostat replacement or a blown capacitor can be fixed quickly. Bigger issues like motor replacements or refrigerant leaks take longer. Our team works efficiently without cutting corners, and we always keep you informed if something changes. In most cases, we’ll have your cooling back up and running the same day we arrive.

On average, AC repair in Fontana runs between $150 and $600, depending on the issue. Minor repairs like capacitor replacement or fuse replacement are on the lower end. More complex repairs, like fixing refrigerant leaks or replacing motors, tend to cost more. We always give clear, upfront pricing before any work begins.

What Are the Most Expensive AC Repairs?

• Compressor replacement
• Coil replacement (evaporator or condenser)
• Motor replacement (blower or condenser fan)
• Circuit board replacement
• Refrigerant leak detection and repair

We’ll always try to repair before replacing. But if your system is too far gone or the repair cost is sky-high, we’ll talk you through your options and help you make the best choice for your home and budget.

Yes, we sure do. Our HVAC technicians are trained and experienced in all types of cooling systems, including heat pumps and ductless mini-splits. Whether you’re heating your whole home or just one room, we’ve got the tools to fix it right.

Most Common Heat Pump Repairs

• Reversing valve failure: This part switches your system from heating to cooling. If it sticks or fails, you’ll be stuck in the wrong season until it’s repaired or replaced.
• Outdoor unit icing: Even in warm weather, heat pumps can ice up if something’s wrong with the refrigerant charge or defrost cycle. We’ll fix it and get airflow moving properly again.
• Thermostat miscommunication: Sometimes the heat pump and thermostat stop talking to each other. This can cause short cycling, temperature swings, or system lockouts.

Most Common Ductless Mini-Split Repairs

• Fan motor problems: If your wall unit is blowing air weakly or making noise, the fan motor could be to blame. We can repair or replace it quickly.
• Refrigerant line leaks: Mini-splits rely on long refrigerant lines, and if there’s a leak, you’ll lose cooling fast. We’ll pinpoint and repair the leak with precision.
• Sensor or control board failure: Mini-splits have internal sensors and electronic boards. If these go out, the system may not respond to the remote or keep the right temperature.

No matter what type of AC system you have, we’re trained to handle it. Heat pumps, mini-splits, central AC, we’ve seen it all and repaired it all.

Want to make the visit go smoothly? A few small steps can make a big difference.

• Clear the area around your indoor and outdoor units: Make sure our techs have easy access to the AC unit, thermostat, and vents. Move furniture, decorations, or anything else that might be in the way.
• Write down what’s been happening: When did the problem start? What have you noticed? Jot down any symptoms you’ve seen. That info helps us pinpoint the issue faster.
• Check your thermostat settings: Sometimes it’s something simple—like the wrong mode or a misconfigured schedule. Double-checking your thermostat before we arrive can save time.
• Secure pets and let us know about access: If you have pets, make sure they’re safe and out of the work area. If you’ll be away, let us know how to access the home or garage.

A little prep goes a long way. It helps us finish repairs faster and keeps the visit smooth and stress-free.

Sometimes, yes. Sometimes, not. If your AC unit is under 10 years old, has been well maintained, and the repair is minor, it’s probably worth fixing. But if the unit is over 12 years old, keeps breaking down, or needs a major part like a compressor or coil, it might be time to talk replacement. A new system will run more efficiently, lower your energy bills, and improve your indoor air quality.

We always give you honest advice and walk you through all your options. If a repair makes sense, we’ll do it. If a new AC installation is the smarter move, we’ll help you find the right system and handle the install from start to finish.