Professional duct sealing to stop energy loss, improve airflow, and increase home comfort. We use manual mastic sealing and Aeroseal technology to ensure your system performs as intended.
Duct Cleaning & Air Duct Service in Pico Rivera
LC Heating & Air provides duct cleaning in Pico Rivera — including air duct cleaning, duct repair service, duct sealing, HVAC ductwork. 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 Pico Rivera, including Carrier, Trane, 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.
I'm Leo, owner of LC Heating & Air. I spend a lot of time in Pico Rivera homes, and I see the same issue over and over: homeowners are paying to heat or cool their attics and wall cavities instead of their living rooms. When your ductwork leaks, your HVAC system has to work twice as hard to keep you comfortable. That is not just a waste of money; it is hard on your equipment.
At LC Heating & Air, we don't just guess where the leaks are. We use duct blaster testing to measure exactly how much air you are losing. Whether we are using manual mastic sealing for accessible joints or the Aeroseal process for hidden leaks, our goal is to make sure the air your system produces actually makes it to your vents. If you are tired of high bills and rooms that never seem to reach the right temperature, let's take a look at your ductwork.
Call LC Heating & Air at (323) 970-3113 for scheduling and estimates.
Local HVAC considerations
Pico Rivera, CA 90660
CSLB #1073586
Duct leakage testing and permanent sealing solutions
Why Pico Rivera Homes Need Duct Sealing
Pico Rivera has a mix of housing styles, from older single-family homes to various remodels. In many of these homes, the original ductwork has simply degraded over time. Flex ducts can get crushed, and sheet metal joints can pull apart due to the natural expansion and contraction from our Los Angeles heat cycles. When those connections fail, conditioned air leaks into unconditioned spaces like attics or garages.
This is a common pattern I see: the HVAC system is running, but the airflow at the registers is weak. Because the system is losing air, it runs longer cycles to try to satisfy the thermostat, which drives up your electricity bills. If you notice excessive dust around your registers or if one side of your house is always hotter than the other, it is often a sign that your ducts are leaking and need to be sealed.
Understanding Your Duct System
Your duct system is the lungs of your home. In many older homes in this area, the ducts were installed before modern energy standards were strictly enforced. We often find systems with inadequate return sizing or poorly insulated runs that pick up heat as they pass through hot attics. This heat gain forces your AC to work harder to cool the air before it even reaches your living space.
Before we recommend any repair, we look at the whole picture. We check the duct condition, airflow, and equipment placement. If your system is worth repairing, we will tell you. If the pattern of damage points to a need for replacement, we will explain why. We don't believe in selling services that won't solve the underlying problem.
Our Diagnostic Process
We start with a duct blaster test. This is the only way to get real numbers. We pressurize your duct system and measure exactly how much air is escaping. This gives us a baseline, and it allows us to show you the difference after we finish the work.
Once we have the data, we decide on the best approach. If the leaks are at accessible joints, plenums, or connection points, we use manual mastic sealing. Mastic is a thick, durable sealant that stays flexible and lasts for the life of the system. If the leaks are distributed throughout the system in inaccessible areas, we use the Aeroseal process, which seals leaks from the inside out using a non-toxic polymer.
Repair vs. Replacement
A common question I get is whether it is better to seal existing ducts or replace them entirely. If your ducts are structurally sound but just leaky at the joints, sealing is a high-value repair that can save you 15–25% on your HVAC energy use. It is a permanent fix that makes a real difference in your monthly bills.
However, if the ducts are crushed, collapsed, or made of outdated materials that are falling apart, sealing won't fix the airflow issues. In those cases, replacement is the honest recommendation. We will always give you a written estimate so you can make an informed decision based on the condition of your specific system.
What to Expect with Costs
We believe in transparency. Duct sealing costs vary based on the size of your home and the complexity of the duct layout. Manual mastic sealing typically ranges from $400 to $1,200, while the Aeroseal process for a typical single-story home usually falls between $1,500 and $3,000. These prices include the before-and-after duct blaster testing so you can verify the results.
Keep in mind that if you are planning an HVAC replacement, California Title 24 often requires duct leakage testing as part of the permit process. Doing this correctly the first time saves you from having to go back and fix issues later.
Safety and Indoor Air Quality
Your health is our priority. The materials we use, including the Aeroseal polymer, are safe and non-toxic. Aeroseal is actually made of the same material used in chewing gum. We take precautions to ensure the process is clean and that your indoor air quality is protected.
We also look at the bigger picture of your home's safety, including electrical layouts and equipment placement. By ensuring your ducts are sealed, we prevent the system from pulling air from attics or garages, which helps keep dust, insulation particles, and other contaminants out of your living space.
Scheduling Your Service
We serve Pico Rivera and the surrounding areas with a focus on clear communication. When you call LC Heating & Air at (323) 970-3113, we will discuss your specific concerns and schedule a time to perform a diagnostic. We know your time is valuable, so we aim to complete most residential duct sealing projects in a single day.
Whether you are in a duplex or a single-family home, we check the access points and electrical conditions before we start. We want to make sure we have everything we need to do the job right the first time, minimizing the need for callbacks.
Common Mistakes to Avoid
The biggest mistake I see is homeowners using standard silver 'duct tape' to fix leaks. That tape dries out, cracks, and falls off within a few years. It is not designed for HVAC systems. If you have leaks, you need a permanent solution like mastic or professional foil-backed HVAC tape.
Another mistake is ignoring the duct system when replacing an HVAC unit. Putting a high-efficiency furnace or AC on a leaky, inefficient duct system is like putting a high-performance engine in a car with a flat tire. You won't get the efficiency you paid for. Always test your ducts when you upgrade your equipment.
Is Duct Sealing Right for You?
If you are noticing high energy bills, uneven temperatures, or excessive dust, it is time to look at your ducts. Duct sealing is one of the best investments you can make for your home's energy efficiency. It is a permanent improvement that pays for itself through lower utility bills.
At LC Heating & Air, we provide honest, licensed service. We will test your system, show you the data, and give you a clear, written estimate. If you are ready to stop wasting money on conditioned air that never reaches your rooms, give us a call at (323) 970-3113.
How the visit works
We perform a duct blaster test to quantify existing leakage as a percentage of system airflow.
Based on leakage quantity, duct type, and accessibility, we recommend manual sealing, Aeroseal, or a combination.
We apply mastic to all accessible joints and plenums, or set up and run the Aeroseal process for internal sealing.
We re-run the duct blaster test and provide you with before/after leakage numbers as written documentation.
Cost factors we review before quoting
- • Total square footage of the home
- • Accessibility of ductwork in attics or crawl spaces
- • Number of supply and return registers
- • Severity of existing leakage
- • Choice between manual mastic sealing and Aeroseal
Useful next steps
Duct Sealing in Pico Rivera at a glance
- • Duct Sealing provider: LC Heating & Air
- • Location served: Pico Rivera, CA 90660
- • License: CSLB C-20 #1073586
- • Phone: (323) 970-3113
- • Estimate: written estimate before approved work
- • Emergency calls answered within 30 minutes (24/7)
Our duct sealing process in Pico Rivera
Reviewed by Leo, Owner & Lead Technician
This duct sealing guide for Pico Rivera 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 Pico Rivera customers say about duct sealing
Verified reviews from homeowners in Pico Rivera and nearby neighborhoods who used our duct sealing service.
“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.”
“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%.”
“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.”
