Fix leaky and damaged ducts — better comfort, lower energy bills.
Duct Cleaning & Air Duct Service in Pacoima
LC Heating & Air provides duct cleaning in Pacoima — 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 Pacoima, 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. If you live in Pacoima, you know our summers can be brutal. When your AC is running constantly but certain rooms just won't cool down, the problem often isn't the unit itself—it's the ductwork. I see it all the time: conditioned air meant for your living room is leaking into your attic or crawl space.
My goal is to give you an honest assessment. We don't just guess; we use diagnostic testing to find exactly where your system is losing air. Whether it's a simple reconnection or a more complex sealing job, I'll tell you what's worth fixing and what might require a different approach.
Call LC Heating & Air at (323) 970-3113 for scheduling and estimates.
Local HVAC considerations
Common Duct Issues in Pacoima Homes
Pacoima’s housing stock, ranging from mid-century ranch houses to newer remodels, often relies on attic-based duct systems. Because our temperatures frequently hit 95-100 degrees, those attics become ovens. When ducts are leaky or poorly insulated, your system is fighting a losing battle against that heat.
I frequently find crushed flex duct caused by foot traffic in tight attics, disconnected joints at the plenum, and boots that have pulled away from the ceiling. These aren't just minor annoyances; they force your blower motor to work harder, which leads to premature equipment failure.
Why Your Ductwork Matters
In many of the homes I visit in the 91331 area, the ductwork was installed decades ago. Over time, tape dries out, mastic cracks, and flex duct loses its integrity. If you have rooms that are consistently hotter than others, it's a classic sign of airflow imbalance caused by duct leakage.
Sealing these leaks is one of the most effective ways to improve comfort. When we seal your ducts, we aren't just stopping air loss; we are preventing your system from pulling dusty, hot attic air back into your home. It’s a practical step toward better indoor air quality.
Our Diagnostic Process
I don't believe in guessing. When we arrive, we start by measuring the airflow at your registers. If the numbers don't add up, we move to a duct pressurization test, also known as a duct blaster test. This tells us exactly how much air you are losing.
We also perform a visual inspection of your accessible ductwork. We look for the 'hidden' culprits: torn inner liners, crushed sections, and failed connections. Once we have the data, we sit down with you to explain what we found and provide a written estimate for the repair.
Repair vs. Replacement: An Honest Look
Homeowners often ask me if they should just replace the whole system. My answer is simple: if the ductwork is in decent shape but has specific leaks, repair is usually the right choice. We can seal, reconnect, and insulate to get you back to peak performance.
However, if the ducts are severely undersized, collapsing throughout the home, or made of outdated materials that are falling apart, patching them is just throwing good money after bad. I will always tell you if a repair is a temporary fix or a long-term solution.
Understanding the Costs
I provide upfront, written estimates so there are no surprises. Costs vary based on the accessibility of your ducts and the extent of the damage. A simple reconnection might be a quick job, while sealing a full system or using Aeroseal technology requires more time and specialized equipment.
Think of duct repair as an investment. By sealing 20-30% of duct leakage, you can reduce your energy consumption by 15-25%. That’s a real reduction in your monthly utility bills during our long LA summers.
Scheduling Your Service
I know your time is valuable. When you call LC Heating & Air at (323) 970-3113, we work with you to find a time that fits your schedule. Because we are a local contractor, we understand the specific access challenges of Pacoima homes, like tight attic spaces and older electrical configurations.
We arrive prepared to diagnose and, whenever possible, perform the repair on the same visit. If the job requires more extensive work, we will outline the plan and get you back on the schedule quickly.
Mistakes to Avoid
The biggest mistake I see is homeowners trying to fix ducts with standard duct tape. It doesn't hold up in the heat of an attic. It dries out and falls off within a season. You need professional-grade mastic or foil tape designed for HVAC systems.
Another mistake is ignoring the 'whistling' sounds. That sound is air escaping under pressure. If you hear it, don't wait for the system to stop cooling entirely. Catching a small leak now prevents a much larger, more expensive repair later.
Health and Safety
Your health is just as important as your comfort. Leaky return ducts in an attic act like a vacuum, pulling insulation fibers, dust, and potential mold spores into your home's air supply. By sealing those leaks, we ensure the air you breathe is coming from inside your home, not from your attic.
We also check that your system is properly balanced. Poorly designed ductwork can lead to backdrafting or uneven pressure, which we address as part of our comprehensive service.
Is Duct Repair Right for You?
If you are tired of high energy bills and rooms that never seem to reach the right temperature, it's time to look at your ducts. We don't push for unnecessary replacements; we focus on what will actually solve your comfort problems.
Call LC Heating & Air at (323) 970-3113. We’ll come out, inspect your system, and give you an honest, plain-spoken assessment of what needs to be done.
How the visit works
We measure airflow at registers, inspect accessible ductwork, and perform duct pressurization testing to quantify leakage.
We identify the specific leaks and damage and present a repair scope with written pricing before any work begins.
We access damaged sections and seal with mastic, reconnect disconnected flex duct, and repair torn inner liners.
We re-test duct leakage after repair and measure airflow at registers to confirm improvement.
Cost factors we review before quoting
- • Accessibility of ductwork in attics or crawl spaces
- • Total amount of leakage identified during testing
- • Type of repair required (manual sealing vs. Aeroseal)
- • Size and complexity of the existing duct system
Useful next steps
Duct Repair in Pacoima at a glance
- • Duct Repair provider: LC Heating & Air
- • Location served: Pacoima, CA 91331
- • 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 repair process in Pacoima
Reviewed by Leo, Owner & Lead Technician
This duct repair guide for Pacoima 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 Pacoima customers say about duct repair
Verified reviews from homeowners in Pacoima and nearby neighborhoods who used our duct repair service.
“Our AC stopped working during a heat wave and LC had a technician here within two hours. He diagnosed a bad capacitor, had the part on his truck, and fixed it on the spot. Fair price, no upsell. Will use again.”
“Called on a Saturday because AC was blowing warm air. LC answered, sent someone the same afternoon. They found and fixed a refrigerant leak. Professional and reasonably priced.”
“Woke up to no AC at 6am. LC was at my door by 9am. Frozen evaporator coil — they explained exactly why it happened (dirty filter + low airflow) and fixed it same visit. Very professional.”





