HVAC Repair in Los Angeles County
If your air conditioner won’t cool or your furnace won’t heat, our HVAC technicians can usually diagnose and fix the problem in a single visit. We repair home heating and cooling systems for homeowners across Pasadena and Los Angeles County. Below is a breakdown of what we service by system type, along with common signs it’s time to schedule a repair.
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What We Repair
Central Air Conditioning
- System not cooling or blowing warm air
- Frequent cycling on and off
- Weak airflow from vents
- Unusual noise from the outdoor or indoor unit
- Water leaking around the indoor unit
Furnaces and Heating Systems
- System not producing heat or blowing cold air
- Pilot light or ignition issues
- Thermostat not communicating with the furnace
- Unusual smells when the system runs
- Frequent cycling without reaching the set temperature
Ductless Mini-Split Systems
- Indoor unit not cooling or heating a specific room
- Error codes displayed on the unit
- Water leaking from the indoor unit
- Unusual noise from the outdoor compressor
Thermostats
- Thermostat not responding to temperature changes
- Display not turning on or showing incorrect readings
- System not turning on or off at the set times
Heat Pumps
- System stuck in heating or cooling mode
- Reduced efficiency during temperature extremes
- Reversing valve or defrost cycle issues
- Outdoor unit icing over during cooler months
Repair or Replace: What to Consider
Not every HVAC issue is worth repairing, especially on an older system. A few factors worth weighing:
- How old the system is, since most central AC units and furnaces have a typical service life of 15 to 20 years
- Whether the repair involves a single component or multiple systems failing at once
- Whether replacement parts are still available for the model
- How the repair cost compares to the cost of a new system with better efficiency
We’ll give you an honest assessment during the diagnostic visit rather than pushing a repair that doesn’t make financial sense for an aging system.
Local Climate Considerations for Pasadena and LA County
Pasadena and the surrounding LA County area see hot, dry summers and mild winters, which puts different strain on HVAC systems than in more extreme climates. Air conditioning systems here tend to run for extended periods during summer months, which accelerates wear on compressors and capacitors. Heating systems, by contrast, run less frequently but can develop issues from sitting idle for months at a time, particularly with pilot lights and ignition components. Scheduling a seasonal check before summer and before winter can catch these issues before they turn into a full breakdown during peak use.
Common Signs You Need an HVAC Repair
- Uneven temperatures between rooms
- Higher than usual energy bills without a clear reason
- System running constantly without reaching the set temperature
- Unusual noises, including grinding, banging, or squealing
- Musty or burning smells when the system runs
- Frequent short cycling, where the system turns on and off more often than usual
- Warm spots near windows or in rooms furthest from the thermostat
Emergency and Same-Day HVAC Repair
A system that stops heating during cold weather or stops cooling during a heat wave isn’t something that can wait. We treat these as HVAC emergencies and prioritize emergency repair requests, working to schedule same-day AC repair whenever our availability allows. Mention the urgency when you call so we can factor it into scheduling for emergency HVAC needs.
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Energy Efficiency and Your HVAC System
A struggling HVAC system often shows up first as a higher energy bill rather than a total breakdown. Restricted airflow, a failing compressor, or a system that’s undersized or oversized for the home all force the unit to run longer than necessary to reach the set temperature. Poor airflow and a neglected system can also affect indoor air quality, since dirty filters and leaky ducts circulate more dust and allergens through the home. If your energy costs have crept up without a clear reason, it’s worth having the system checked, since a repair now can prevent a more expensive failure later and restore both efficiency and air quality.
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How We Diagnose HVAC Issues
Our HVAC technician tests the compressor, blower motor, thermostat, and electrical components separately to identify the actual cause of the problem before recommending a repair. Once we’ve identified the cause, we explain what’s wrong and provide a price before starting any HVAC work.
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Parts We Use for HVAC Repairs
We source parts appropriate to your specific system and brand rather than substituting generic components that may not fit or perform correctly. For older systems, some parts may need to be special ordered, and we’ll confirm the expected timeline with you before scheduling the repair visit.
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What to Expect During a Repair Visit
- We ask for your system’s brand and a description of the issue when you call or book online.
- A repair technician arrives to inspect the system and test the relevant components.
- We explain what we found and provide a price before doing any repair work.
- Once approved, we complete the repair and test the system before we leave.
Repair Pricing Factors
The cost of an HVAC repair depends on which component is affected and whether a part needs to be ordered. A thermostat or capacitor replacement typically costs less than a compressor or blower motor repair. We provide an exact price after diagnosis, not a flat estimate before a technician has seen the system.
Maintenance Tips Between Repairs
- Replace or clean air filters regularly, since a clogged filter restricts airflow and strains the system
- Keep the outdoor unit clear of leaves, debris, and overgrown plants
- Schedule seasonal tune-ups before peak heating and cooling months
- Check that vents throughout the home are open and unobstructed
- Keep furniture and curtains clear of indoor vents to maintain proper airflow
- Have ductwork inspected periodically for leaks, since leaky ducts reduce efficiency and drive up energy costs
What to Do Before Your Repair Visit
- Note when the issue started and whether it happens consistently or intermittently
- Check that your thermostat batteries are working, if applicable
- Clear the area around the indoor and outdoor units so the technician has room to work
- Avoid running the system continuously if you notice unusual noises or smells
How Often Should You Service Your HVAC System?
Most manufacturers recommend a professional check twice a year, once before summer for the air conditioning system and once before winter for the heating system. Homes with pets or higher dust levels may benefit from more frequent filter changes between these visits, which also helps with indoor air quality upgrades over time. Regular HVAC maintenance catches small issues, like a failing capacitor or a refrigerant level slightly off, before they turn into a system failure during the hottest or coldest part of the year.
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Residential and Light Commercial HVAC Repair
Beyond repair, we also provide HVAC installation for homeowners replacing an aging air conditioner or furnace with a new HVAC system. Installation in Los Angeles often means sizing the new equipment correctly for the home’s square footage and local climate, since an oversized or undersized unit can undercut the efficiency gains of a new HVAC system. We walk you through the options for air conditioning installation and heating replacement before recommending a specific model.
Areas We Serve for HVAC Repair
We’re based in Pasadena and serve Los Angeles homeowners throughout Los Angeles County, including South Pasadena, San Marino, Alhambra, Glendale, Altadena, and Arcadia, as well as Los Angeles, Burbank, Sherman Oaks, Beverly Hills, Santa Monica, and Long Beach. As a local HVAC company in Los Angeles, we provide HVAC repair, AC repair in Los Angeles, and installation in Los Angeles across the county. Visit our Service Areas page for the complete list of cities we cover for HVAC service in Los Angeles.
Schedule an HVAC Repair Today
If your heating or cooling system isn’t performing the way it should, call (213) 378-2980 to schedule a diagnostic visit, or book online at a time that fits your schedule. Our repair technicians handle everything from a broken AC in the middle of summer to a new HVAC system installation before the season changes.