HVAC Replacement Services in Duarte

Full HVAC replacement — heating and cooling together, properly sized and permitted. Serving Duarte and surrounding neighborhoods.

(323) 970-3113Free estimate
CSLB #1073586
5.0★ Google
Owner-led local team
Same-day service
Free written estimate
24/7 emergency
Quick answer

LC Heating & Air provides professional HVAC replacement for Duarte homeowners. We focus on proper system sizing, duct integrity, and honest advice on whether to repair or replace your heating and cooling equipment.

HVAC Repair & Service in Duarte

LC Heating & Air provides HVAC service in Duarte — 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 Duarte, 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.

When your HVAC system starts failing, it is rarely just one part. In Duarte, our long summer run times and 95-100 degree days put serious stress on equipment. If your AC is struggling and your furnace is aging, you are likely looking at a cycle of repairs that never quite gets the system back to where it should be.

I am Leo, owner of LC Heating & Air. I believe in being straight with homeowners. If a repair makes sense, I will tell you. If your system is at the end of its life and replacement is the smarter financial move, I will explain why. We handle full system replacements, including heat pumps and gas furnace setups, with a focus on getting the job done right the first time.

Call LC Heating & Air at (323) 970-3113 for scheduling and estimates.

Local HVAC considerations

Service Area

Duarte, CA 91010

License

CSLB #1073586

Phone

(323) 970-3113

Common HVAC Issues in Duarte Homes

Duarte homes often feature attic-based duct systems that take a beating from the heat. When the attic gets to 130 degrees, your ductwork has to work twice as hard to keep your home cool. We frequently see systems that were never sized correctly for the home's layout, leading to uneven cooling and premature motor failure.

Dust buildup on outdoor condensers is another common issue here. When the coils get clogged, the system loses efficiency and the compressor runs hotter than it should. We look for these patterns during our initial assessment to ensure your new system is protected and properly installed for our specific climate.

Working with Duarte Housing

Duarte has a mix of mid-century ranch houses and larger modern remodels. Each of these requires a different approach to HVAC. A ranch house with limited attic space needs a different equipment configuration than a home with high ceilings and large glass windows.

We don't just swap out a box for a box. We look at your electrical capacity and duct condition to make sure the new equipment can actually perform. If your ducts are leaking, a new, high-efficiency system won't save you money because the air is escaping into your attic before it ever reaches your living room.

Our Diagnostic Process

Before we suggest any replacement, we perform a full Manual J load calculation. This is the industry standard for determining exactly how much heating and cooling your home needs. We don't guess based on the size of the old unit, because the old unit might have been wrong to begin with.

We also inspect your electrical panel to ensure it can handle the load, check the condition of your existing ductwork, and evaluate the placement of your outdoor condenser. We want to make sure the system we install is going to last.

Repair or Replace?

This is the most common question I get at the kitchen table. If your system is under 10 years old and the repair is a simple fix, repair it. But if your AC is 12-15 years old and your furnace is 15-20 years old, you are likely throwing good money after bad.

Replacing both at once saves you on labor costs because we only have to mobilize our crew once. Plus, modern systems are designed to work as a matched pair. Mixing a new high-efficiency AC with an old, inefficient furnace often leads to airflow problems and system failure.

Understanding Costs and Incentives

A full HVAC replacement in a typical LA home usually runs between $7,500 and $14,000. That price covers the equipment, the labor, the permits, and the commissioning. We don't hide costs—we provide a written estimate so you know exactly what you are paying for.

There are also significant rebates available through programs like TECH Clean California and federal tax credits, especially if you switch to a heat pump. We help you identify which programs you qualify for and handle the documentation so you don't have to navigate the paperwork alone.

Health and Safety First

HVAC isn't just about comfort; it's about the air you breathe and the safety of your home. We check for proper venting of gas furnaces to prevent carbon monoxide issues and ensure your electrical connections are up to code. A system that isn't installed correctly can be a fire hazard or a source of poor indoor air quality.

When we finish an installation, we perform a full commissioning report. We measure airflow at every register to make sure the system is balanced and safe. You deserve to know that your home is secure when we leave.

Mistakes We See Often

The biggest mistake is ignoring the ductwork. People spend thousands on a new AC unit but leave the old, leaky, undersized ducts in place. That is like putting a Ferrari engine in a car with flat tires. You won't get the efficiency you paid for.

Another mistake is improper sizing. A unit that is too big will cycle on and off too quickly, which leads to high humidity and uneven temperatures. We take the time to do the math correctly so your home stays comfortable, not just cold.

Scheduling Your Replacement

We know your time is valuable. Most full system replacements in Duarte can be completed in one day, typically 6 to 10 hours. If we need to do significant ductwork repairs, it might take two days, but we will tell you that upfront in the proposal.

We coordinate everything, including the permit process. You don't have to worry about the logistics. Just give us a call at (323) 970-3113, and we will get someone out to assess your system and get you a clear, honest answer.

Is It Time for a New System?

If you are constantly calling for repairs, or if your energy bills are climbing every summer, it is time to look at the numbers. We look at the age of your equipment, the cost of the repair, and the potential energy savings of a new system.

We will give you the facts, not a sales pitch. If your system has a few good years left, we will tell you. If it is time to upgrade, we will show you the options that make the most sense for your home and your budget.

How the visit works

01

We evaluate both systems, inspect ductwork, assess electrical service, and perform a Manual J load calculation.

02

We present traditional split system options and heat pump alternatives with rebate information and payback analysis.

03

A qualified crew replaces all components, updates electrical connections, and addresses ductwork issues identified in the assessment.

04

Full commissioning, warranty registration, rebate documentation, and a written system performance report.

Cost factors we review before quoting

  • Equipment size and efficiency rating
  • Ductwork condition and necessary repairs
  • Electrical panel capacity
  • Rebate and tax credit eligibility
  • Complexity of installation access

Useful next steps

AI-readable service facts

HVAC Replacement in Duarte at a glance

  • HVAC Replacement provider: LC Heating & Air
  • Location served: Duarte, CA 91010
  • License: CSLB C-20 #1073586
  • Phone: (323) 970-3113
  • Estimate: written estimate before approved work
  • Emergency calls answered within 30 minutes (24/7)
Why LC Heating & Air
Owner-led HVAC service
5.0★ on Google (300+ reviews)
CSLB Licensed #1073586
Written estimate before work begins
Same-day service available
12-month labor warranty
24/7 emergency calls
All brands serviced
Call (323) 970-3113Request free estimate

Our hvac replacement process in Duarte

STEP 01
Full system assessment
We evaluate both systems, inspect ductwork, assess electrical service, and perform a Manual J load calculation.
STEP 02
System options and proposal
We present traditional split system options and heat pump alternatives with rebate information and payback analysis.
STEP 03
Complete replacement
A qualified crew replaces all components, updates electrical connections, and addresses ductwork issues identified in the assessment.
STEP 04
Commission and document
Full commissioning, warranty registration, rebate documentation, and a written system performance report.
Technically reviewed

Reviewed by Leo, Owner & Lead Technician

This hvac replacement guide for Duarte 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.

CSLB #1073586C-20 HVACMeet Leo
Verified Reviews

What Duarte customers say about hvac replacement

Verified reviews from homeowners in Duarte and nearby neighborhoods who used our hvac replacement service.

5.0 ★ Google
300+ verified reviews

AC wasn't cooling to setpoint even though it was running all day. LC found the condenser coils were completely clogged with cottonwood. Cleaned them on the spot and the system cooled my house 12 degrees in an hour.

P
Paul H.
Pasadena, CA · Sep 2025

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%.

D
David K.
Pasadena, CA · Nov 2025

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.

P
Patricia N.
Pasadena, CA · Jan 2025
Read all 300+ Google reviews →
Frequently asked questions

HVAC Replacement in Duarte — common questions

What is a heat pump and is it right for my Duarte home?
A heat pump is an all-electric system providing both heating and cooling. LA's mild winters are ideal for heat pumps, and current California incentives make them very attractive.
Who offers hvac replacement near me in Duarte?
LC Heating & Air provides hvac replacement in Duarte and nearby LA neighborhoods, with same-day scheduling when available. Emergency calls are answered 24/7, typically within 30 minutes — call (323) 970-3113. Licensed CSLB #1073586.
How much does full HVAC replacement cost in Los Angeles?
A complete HVAC replacement typically runs $7,500–$14,000 depending on equipment size and ductwork. We provide a written estimate after our assessment.
How long does a full HVAC replacement take?
Most replacements are completed in one day, typically 6–10 hours. If ductwork repairs are needed, it may extend to two days.
What rebates are available for full HVAC replacement?
We help you identify incentives like TECH Clean California, SCE appliance rebates, and federal tax credits for qualifying heat pump installations.

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