Schedule AC Repair
Tell us about your system and we'll follow up to confirm your appointment.
Fast, Accurate Diagnostics
When your air conditioner stops cooling properly or breaks down completely, you need a technician who can diagnose the real problem — not just treat the symptoms. Osinaga Air Systems provides accurate AC diagnosis and quality repair backed by 20 years of San Fernando Valley HVAC experience.
We don't recommend a replacement when a repair will do. We don't recommend the most expensive fix when a simpler one will solve the problem. You get an honest assessment every time.

Refrigerant levels and leak detection
Compressor condition and operation
Capacitor and contactor function
Evaporator and condenser coils
Blower motor and fan performance
Thermostat calibration and controls
Electrical connections and safety components
We perform a thorough system evaluation to accurately identify the root cause of the problem.
We explain our findings and give you clear, honest repair options — no pressure.
We complete the approved work carefully, using quality parts and professional techniques.
We test the repaired system and verify it's operating correctly before we leave.
Most repairs are completed in 2–4 hours. Complex issues like compressor replacement may take longer. We’ll give you a time estimate before we begin.
Yes. All labor is warranted. Parts warranties vary by manufacturer. We’ll review the applicable warranty with you before completing the work.
We help you make this decision honestly. As a general guideline, if the repair cost exceeds 50% of a new system’s price and your unit is 10+ years old, replacement often makes more economic sense. We’ll walk you through the math.
Tell us about your system and we'll follow up to confirm your appointment.