LC Heating & Air provides professional heat pump diagnosis and repair for Altadena homeowners. We specialize in identifying reversing valve issues, defrost board failures, and airflow problems, ensuring your system operates correctly in both heating and cooling modes.
Heat Pump Repair & Service in Altadena
LC Heating & Air provides heat pump repair in Altadena — including heat pump services, heat pump not heating, heat pump replacement, energy efficient heat pump. Whether you need same-day service, a written estimate, or help deciding between repair and replacement, our licensed technicians handle every make and model.
We repair and service all major HVAC brands in Altadena, including Carrier, Trane, Lennox, Daikin, Mitsubishi, and Goodman, and older or discontinued units. No matter the manufacturer, we diagnose the problem accurately and give you an upfront price before any work begins.
Altadena is a unique place to live, with its foothill location creating a distinct microclimate that demands a lot from your HVAC system. Whether you are in Janes Village or near Eaton Canyon, your heat pump is working hard to handle both our warm summers and the cooler mountain-adjacent winters. When a heat pump fails, it is not just an inconvenience; it often means you lose both your cooling and your heating simultaneously.
At LC Heating & Air, I am Leo, and I believe in a straightforward approach to HVAC service. I do not believe in sales pitches. I believe in showing up, checking the equipment properly, and giving you an honest assessment of what is going on. If your system can be repaired reliably, I will tell you. If the age or condition of the unit makes replacement a better long-term decision, I will explain why so you can make an informed choice for your home.
Emergency calls are answered within 30 minutes — call (323) 970-3113 for dispatch.
Local HVAC considerations
Altadena (91001) and surrounding foothills
CSLB #1073586
Heat pump diagnosis, repair, and air quality
Local HVAC Challenges in Altadena
The 2025 Eaton Fire created an acute HVAC challenge for Altadena: smoke and ash infiltration into duct systems, contaminated air filters, and soot deposits on evaporator coils and heat exchangers. Homes in the fire's path need complete duct inspection and cleaning, filter replacement with HEPA-grade filtration during the remediation period, and in some cases coil replacement where heat damage has compromised efficiency. Beyond fire impacts, Altadena's foothill location means properties face wildfire risk generally and should invest in air quality measures including MERV 13+ filtration and whole-house air purification.
Altadena's mountain proximity means cooler overnight temperatures in winter — heating demand is higher than in the LA basin, and furnace maintenance is correspondingly more important. Many Altadena homes have gas furnaces that provide critical heating during December through February when overnight temperatures can drop into the 30s. We provide thorough furnace inspection including heat exchanger integrity testing, combustion analysis, and gas connection verification — all essential safety checks that protect your family from carbon monoxide exposure.
Working with Altadena's Diverse Housing
Altadena features everything from 1940s bungalows to larger estates. This variety means that HVAC access is rarely the same from one house to the next. Some homes have equipment tucked into tight attics, while others have older electrical layouts that need to be verified before we can recommend a repair or a new system installation.
Before I recommend any work, I look at the access, the electrical capacity, the condition of your ductwork, and how the equipment is placed. A heat pump that is improperly sized or restricted by poor airflow will never perform correctly, no matter how many parts we replace. My goal is to ensure the system fits your specific property.
Our Diagnostic Process
When I arrive at your home, I start with a multi-mode diagnosis. Because a heat pump reverses its operation, I test the system in both heating and cooling modes. I measure refrigerant pressures in both modes and check the electrical components, including the contactors and capacitors.
I also look at the defrost board and the reversing valve. These are the components that make a heat pump different from a standard AC. If the reversing valve is stuck or the defrost board has failed, the system will struggle to switch modes or clear ice from the outdoor coil. Once I identify the fault, I provide a written flat-rate estimate before any work begins.
Repair vs. Replacement
Deciding whether to repair or replace is a big decision. If your heat pump is relatively new and a specific component like a capacitor or a defrost board has failed, a repair is usually the most practical path. However, if the compressor is failing or the system is significantly undersized for your home, pouring money into repairs might not be the best use of your budget.
I provide honest guidance based on the condition of your equipment. If I see that a repair will likely lead to more issues down the road, I will tell you. If a repair is solid and will get you through the season, I will do that. My priority is your comfort and your wallet, not selling new equipment you do not need.
Costs and Rebates
Transparency is key. Our diagnostic fee is $125–$175. Common repairs like capacitor replacements generally run $200–$650 depending on the complexity. If your system requires a full replacement, costs typically range from $7,000–$16,000 before any available rebates.
We can also discuss the TECH Clean CA rebate, which can offer between $1,500 and $3,000 back after a qualifying heat pump installation. We will help you understand if your project qualifies so you can factor that into your planning.
Access and Scheduling
We serve the entire Altadena area, including Christmas Tree Lane, the Meadows Area, Kinneloa Mesa, Janes Village, and the Eaton Canyon area. Because we are a local contractor, we understand the logistical challenges of these neighborhoods, from narrow streets to older home access points.
We offer same-day service options and carry parts for all major brands, including Carrier, Lennox, Trane, Rheem, Goodman, Daikin, Mitsubishi, and Fujitsu. When you call (323) 970-3113, we will work with you to find a time that fits your schedule.
Health and Safety
Your safety is the most important part of our job. This includes verifying gas connections for furnaces, checking for carbon monoxide leaks, and ensuring your electrical system is safe for the equipment it powers. In the wake of recent fire activity, we are also highly focused on indoor air quality.
If you are concerned about smoke or ash in your system, let us know. We can inspect your ductwork and coils to ensure you aren't breathing in contaminants. We are fully licensed (CSLB #1073586) and insured, so you can have peace of mind while we work in your home.
Mistakes to avoid — Heat Pump Repair in Altadena
Oversized equipment, skipped maintenance, and DIY refrigerant or gas work are frequent heat pump repair mistakes we correct in Altadena.
Closing too many registers or using the wrong filter MERV rating can starve airflow and shorten component life.
Is Your Heat Pump Worth Repairing?
If your heat pump is providing cooling but not heating, or if it is making loud clicking noises, it is time to have it checked. A simple capacitor replacement can often get an older system back up and running for years.
However, if your system is constantly running on 'Emergency Heat' mode, or if the outdoor unit is perpetually encased in ice, it is time for a professional diagnosis. We will look at the whole system to see if a repair will hold or if it is time to look at a replacement.
How the visit works
We test the system in both heating and cooling modes, measure refrigerant pressures in both modes, and identify the specific fault.
We test capacitors, contactors, reversing valve, defrost board, and refrigerant circuit components as indicated by the diagnostic.
We explain the fault and provide a flat repair price. You approve; we repair.
We complete the repair and test both heating and cooling operation before leaving.
Cost factors we review before quoting
- • Diagnostic fee: $125–$175
- • Component repairs: $200–$650
- • System installation: $7,000–$16,000
- • TECH Clean CA rebates: –$1,500 to –$3,000
Useful next steps
Heat Pump Repair in Altadena at a glance
- • Heat Pump Repair provider: LC Heating & Air
- • Location served: Altadena, CA 91001
- • License: CSLB C-20 #1073586
- • Phone: (323) 970-3113
- • Estimate: written estimate before approved work
- • Emergency calls answered within 30 minutes (24/7)
Our heat pump repair process in Altadena
Reviewed by Leo, Owner & Lead Technician
This heat pump repair guide for Altadena is reviewed for practical HVAC accuracy by Leo at LC Heating & Air. LC Heating & Air holds California CSLB C-20 HVAC license #1073586 and provides written estimates before approved work.
What Altadena customers say about heat pump repair
Verified reviews from homeowners in Altadena and nearby neighborhoods who used our heat pump repair service.
“We were skeptical about a heat pump for heating in the winter but LC explained the technology clearly. After one winter season, our home stays warmer than it ever did with the old furnace, and it's quieter too.”
“Called LC because our CO detector went off. Their technician found a crack in the heat exchanger and immediately shut down the furnace. He explained the safety issue clearly, provided a replacement estimate, and didn't try to scare us — just facts.”
