Full HVAC system replacement for Altadena homes. We handle everything from the initial load calculation to final commissioning, ensuring your new system is sized correctly for our foothill climate.
HVAC Repair & Service in Altadena
LC Heating & Air provides HVAC service in Altadena — including HVAC services near me, HVAC repair and service, heating and air conditioning, HVAC system repair. 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, Lennox, Trane, Goodman, Daikin, and Mitsubishi, 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, nestled right against the San Gabriel Mountains. Because of our elevation and proximity to the foothills, we deal with different temperature swings than the rest of the LA basin. Whether you are in a 1940s bungalow or a newer build, your HVAC system needs to be sized specifically for your home's layout and insulation.
At LC Heating & Air, I believe in being upfront about your options. If your system is failing, I will tell you if a repair is a solid, long-term fix or if you are just throwing good money after bad. When it is time to replace, we handle the entire process—permits, load calculations, and proper installation—so you don't have to worry about the details.
Call LC Heating & Air at (323) 970-3113 for scheduling and estimates.
Local HVAC considerations
Altadena (91001)
CSLB #1073586
(323) 970-3113
Fire Remediation and Air Quality
The 2025 Eaton Fire left a lot of Altadena homes dealing with ash and smoke infiltration. If your system was running during that time, your ductwork and coils likely have soot deposits that can hurt efficiency and indoor air quality. We specialize in inspecting these systems to see if they can be cleaned or if the damage is too deep.
Beyond fire impacts, our foothill location means we deal with more dust and wildfire smoke than other parts of the county. I often recommend upgrading to MERV 13+ filtration or whole-house air purification to keep your home's air clean, especially if you have family members with sensitivities.
Altadena Housing and Heating Needs
From the historic homes near Christmas Tree Lane to the varied architecture in Janes Village, Altadena has a mix of housing that requires a custom approach. Many of our older homes have gas furnaces that are essential for our chilly winter nights, when temperatures can drop into the 30s.
When I inspect these older systems, I focus on heat exchanger integrity and combustion analysis. These are safety-critical checks. If your furnace is 15–20 years old, it is worth a serious look at whether it is still safe and efficient enough to keep running.
How We Assess Your System
I don't just look at the equipment; I look at the whole house. Before I ever recommend a replacement, I perform a Manual J load calculation. This tells me exactly how much heating and cooling your specific home needs based on your windows, insulation, and orientation.
We also check your ductwork. It does not matter how efficient your new AC unit is if your ducts are leaking air into the attic. We look for leaks, blockages, and sizing issues to make sure the air actually makes it into your rooms.
Repair or Replace?
This is the most common question I get at the kitchen table. If your system is 12–15 years old and needs a major repair, I will usually suggest looking at a replacement. Why? Because you are already paying for a service call and labor. If the furnace is also aging, replacing both at once saves you the cost of a second mobilization later.
If a repair is simple and the equipment has plenty of life left, I will tell you to repair it. My goal is to give you honest advice that makes sense for your wallet and your comfort, not to push a sale you do not need.
Understanding Costs and Incentives
A full HVAC replacement typically runs between $7,500 and $14,000, depending on the equipment and the work needed on your ducting. I know that is a significant investment, which is why I help you identify every available rebate.
Programs like TECH Clean California and federal tax credits can make a big difference, especially if you move to a heat pump system. I handle the documentation so you can focus on the comfort of your home.
What to Expect During Installation
Most full replacements in Altadena are completed in a single day, usually between 6 and 10 hours. If we find that your ductwork needs significant repairs or modifications, it might take a second day, but we will be clear about that in the proposal.
We respect your home and your time. We make sure the site is clean, the electrical connections are up to code, and the system is commissioned properly before we leave.
Avoid These Common Pitfalls
The biggest mistake I see is installing a new, high-efficiency AC unit onto old, leaky ductwork. You end up paying for efficiency you never get because the air leaks out before it reaches your living room. We always include a duct assessment in our scope.
Another mistake is skipping the permit process. Permits exist to ensure the work is done safely and correctly. At LC Heating & Air, we pull the necessary permits for every replacement to protect you and your home.
Safety First
Your family's safety is the priority. When we work on your furnace, we test for carbon monoxide and ensure your gas connections are secure. If you are using a heat pump, we check your electrical panel capacity to make sure it can handle the load without issues.
We are fully licensed (CSLB #1073586) and insured. When we finish a job, we provide a performance report so you know exactly how your new system is running.
Making the Right Choice for Your Home
If you are on the fence, look at your service history. If you have had three or four repairs in the last two years, the system is telling you it is tired. It is better to plan a replacement on your terms than to have the system fail on the hottest day of the year.
Call me at (323) 970-3113. I will come out, take a look at your equipment, and give you a straight answer about what makes the most sense for your house.
How the visit works
We perform a full assessment of your current system, ductwork, and electrical capacity.
We provide a written estimate with options, including heat pumps and traditional systems.
Our crew completes the replacement, handling all permits and duct repairs.
We commission the system and provide you with a performance report.
Cost factors we review before quoting
- • Equipment efficiency ratings
- • Ductwork condition and repair needs
- • Electrical panel capacity
- • Available federal and state rebates
Useful next steps
HVAC Replacement in Altadena at a glance
- • HVAC Replacement 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 hvac replacement process in Altadena
Reviewed by Leo, Owner & Lead Technician
This hvac replacement 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 hvac replacement
Verified reviews from homeowners in Altadena and nearby neighborhoods who used our hvac replacement service.
“LC replaced our entire HVAC system — new Carrier condenser, furnace, and coil. Leo walked us through every option without pressure. The install team was professional and clean. System runs perfectly and our electricity bill dropped about 30%.”
“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.”
“After the Eaton Fire, our ducts smelled like smoke. LC did a full cleaning — negative air pressure, rotary brushes, the works. Air quality in our home is completely different now. They were sensitive to what our neighborhood went through.”
