Air Conditioning Repair
Fast, dependable air conditioning repair to keep your home cool and comfortable during Ventura and LA County’s hottest days.
Don’t ignore the warning signs. Catching these common symptoms early can be the difference between a simple tune-up and an expensive total replacement.
Warning: Moisture or refrigerant leaks.
Risk: Refrigerant is toxic and leaks can burn out your compressor fast.
Warning: The "chill" is gone from your vents.
Risk:Your system is working overtime, leading to a total motor failure.
Warning: Burning or musty odors.
Risk:Could indicate a clogged filter or a dangerous electrical component overheating.
Warning: Rattling, grinding, or squealing.
Risk:Usually means a motor or belt is about to snap or seize.
Getting your air conditioning system repaired is simple.
Call (805) 988-1800 for immediate dispatch or submit a service request online to schedule your AC repair appointment at a time that works best for you.
Our team will confirm your appointment and dispatch a qualified HVAC technician to your home or business.
Our technician will inspect your air conditioning system, identify the issue, and perform the necessary repairs to restore proper cooling.
Our technician verifies your system is operating perfectly before we consider the job done.
Check the gray metal box near your outdoor compressor.
If you’re handy, ensure the outdoor fan is free of debris.
Remove overgrown vegetation blocking the outdoor unit.
If it looks dirty. Let your unit breathe.
Look for a tripped circuit breaker labeled “AC.”
Ensure it’s set to “Cool” and the temp is several degrees lower than the room.
Sometimes the simplest solution is a switch that was accidentally flipped.
Some repairs are mostly labor (electrical troubleshooting, refrigerant leak finding, fan motor adjustment). Others are mostly parts (compressor replacement, evaporator coil replacement, control board replacement). The breakdown affects the total cost more than people expect.
Systems using older refrigerants (R-22 / Freon) cost meaningfully more to recharge than newer R-410A or R-454B systems. This is one of the most common reasons an older unit becomes cost-ineffective to keep repairing.
A rooftop unit on a steep tile roof takes longer to service than a ground-level condenser. An attic air handler in a tight crawl space takes longer than one in a clean utility room. Labor time is real.
A failed capacitor (~30 minute fix) is one of the most common AC repairs Kaiser sees in Ventura County. A failed compressor on a 12-year-old unit is a different conversation — often the point where repair vs. replace becomes a real question.
If your system is still under manufacturer warranty (Carrier residential systems typically carry 10-year parts coverage when registered), part costs may be covered. Kaiser confirms warranty status before quoting parts.
For repairs that approach the cost of a partial system replacement, Kaiser offers financing for qualified customers — this often makes a major repair manageable without delaying it through summer.
Our warehouse is in Camarillo, which means parts and trucks are close — useful when you need a service call on a 95-degree afternoon. We service Mission Oaks, Las Posas Estates, and the neighborhoods around CSU Channel Islands routinely.
See our Camarillo HVAC services →
Coastal salt air is hard on outdoor condensers. We see corrosion-related issues here more than in inland Ventura County, and our technicians know what to look for.
See our Oxnard HVAC services →
Hillside neighborhoods and beach-adjacent homes have very different AC needs. Kaiser repairs central air, ductless mini-splits, and packaged units across the city.
See our Ventura HVAC services →
Many Thousand Oaks homes have multi-zone or higher-capacity systems serving larger floor plans. Repairs here often involve diagnosing zone-specific problems rather than whole-system failures.
See our Thousand Oaks HVAC services →
Custom-built Westlake Village homes frequently have Carrier Infinity systems or ductless mini-split installations — both of which Kaiser is factory-trained to service.
See our Westlake Village HVAC services →
Across 44 years of residential AC repair in Ventura County, certain failures show up over and over. Here are the ones Kaiser sees most often and what’s typically behind them:
Most often a hard-starting compressor pulling more amps than the breaker is sized for, or a loose electrical connection somewhere in the unit's high-voltage path. Less commonly, a short circuit in the compressor windings — which is a more expensive repair.
Restricted airflow (clogged filter, blocked return), low refrigerant, or a stuck blower motor. Easy to diagnose, almost always cheaper to repair than to replace.
Grinding usually means fan motor bearings; banging usually means a loose part inside the compressor; screeching can mean a failing belt or fan motor. All worth diagnosing quickly — a fan motor failure can cascade into a compressor failure if ignored.
Almost always a clogged condensate drain line. Quick fix if caught early; expensive ceiling repair if ignored.
Sometimes a wiring issue, sometimes a dead thermostat battery, sometimes a control board failure at the air handler. Kaiser checks all three.
Unit turns on and off rapidly without completing a cooling cycle. Common causes: oversized system, low refrigerant, dirty filter, malfunctioning thermostat, or a failing pressure switch. Diagnosis matters here because the fix is very different for each cause.
Become a member of our Maintenance Plan today and enjoy priority service, exclusive discounts, and year-round HVAC protection.
Become a member of our Maintenance Plan today and enjoy priority service, exclusive discounts, and year-round HVAC protection.
The diagnostic visit covers a technician coming to your home, identifying the problem, and giving you a written estimate. If you approve the repair, many shops credit the diagnostic fee toward the repair. Kaiser will explain how that works at the time you schedule.
Yes. Kaiser warranties parts we install and labor we perform. Specific warranty terms depend on the part and the repair — your technician explains the warranty before any work begins, and it’s written into the estimate.
We prioritize no-cooling calls during heat waves. Specific timing depends on call volume and where you are in Ventura County, but Kaiser tries hard to get to no-cooling emergencies the same day. Call us at (805) 988-1800 and we’ll give you a realistic ETA when you book.
A good rule of thumb: if your AC is more than 10 years old and the repair cost approaches half the cost of a new system, replacement usually pays back faster than another repair on aging equipment. Kaiser’s technician will give you a straight comparison during the service visit — and we offer financing for qualified customers if replacement is the right call.
Yes, but be aware that R-22 refrigerant is no longer manufactured and costs significantly more per pound than current refrigerants. For older systems with refrigerant leaks, the math sometimes points toward replacement instead of repeated recharges. Kaiser will lay out the numbers.
We’ll give you ranges based on common repairs, but a firm quote requires a diagnostic visit. Anyone giving you a firm AC repair quote without seeing the system is guessing — and guesses don’t end well for either party.
Whether you need a repair on an existing unit or a brand-new installation, we work with the industry’s leading manufacturers.
With over 45 years of service in Ventura and LA Counties, we’ve built more than just HVAC systems; we’ve developed a reputation for integrity.
Not sure if we serve your area? Call us at 805-988-1800.
If your air conditioner isn’t cooling properly, our experienced technicians are ready to help. Kaiser Air Conditioning provides fast, reliable AC repair services throughout Ventura and LA County to restore your comfort quickly and efficiently.
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Serving homeowners and businesses across Ventura and LA County since 1981, we specialize in HVAC repair, installation, and maintenance designed for long-term comfort and efficiency.
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