Professional duct sealing services from LC Heating & Air to stop energy loss, improve airflow, and ensure your home comfort system runs efficiently in the Pacific Palisades climate.
Duct Cleaning & Air Duct Service in Pacific Palisades
LC Heating & Air provides duct cleaning in Pacific Palisades — 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 Pacific Palisades, 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 Pacific Palisades homes, and one of the most common issues I see isn't the furnace or the AC unit itself—it's the ductwork. If your HVAC system is working hard but your home still feels uneven or your energy bills are high, there is a good chance your conditioned air is leaking into your attic or wall cavities before it ever reaches your living room.
Duct sealing is one of the highest-ROI home energy improvements available to Los Angeles homeowners. When conditioned air leaks into attic or wall cavities before reaching the living space, you're paying to condition space you don't occupy. Studies of California homes consistently show 20–30% duct leakage in older homes—and every percentage point of leakage reduction shows up directly in your utility bill.
Call LC Heating & Air at (323) 970-3113 for scheduling and estimates.
Local HVAC considerations
Duct Issues in Pacific Palisades Homes
In our coastal climate, the marine layer and humidity play a role in how your home's systems age. I often find that older beach properties and even some renovated homes have ductwork that has shifted or degraded over time. When we look at your system, we focus on return sizing, duct leakage, crushed flex runs, and attic heat gain. These are the specific areas where we see the most energy loss.
Duct sealing matters when conditioned air is leaking into attics, crawl spaces, garages, or wall cavities instead of reaching living areas. In Pacific Palisades, where we deal with marine-layer humidity and salt-air exposure, ensuring your ducts are sealed properly prevents moisture from being pulled into your system or conditioned air from being wasted in unconditioned spaces.
Understanding Your Home's Ductwork
Pacific Palisades has a mix of coastal homes, condos, and older beach properties. Many of these homes were built before modern energy standards were strictly enforced. If you have original flex duct or sheet metal ductwork that has never been inspected, there is a high probability that the joints have separated or the material has simply dried out.
Even in renovated homes, we often find that the ductwork wasn't properly balanced. If you have rooms that are always too hot or too cold, it's rarely just the thermostat. It's usually an airflow issue caused by leaky or poorly routed ducts. We look at the whole system to ensure that the air you're paying to cool or heat actually makes it to the rooms where you spend your time.
Our Diagnostic Process
I don't believe in guessing. When we come out to your home, we start with a duct blaster test. This allows us to quantify your existing leakage as a percentage of your system's total airflow. It gives us a baseline so we can show you exactly how much air you are losing.
Once we have the data, we determine the best approach. Sometimes that means manual mastic sealing for accessible joints and plenums. Other times, if the leaks are distributed throughout the system in hard-to-reach places, we use the Aeroseal process. After we finish, we re-run the test to verify the results and provide you with documentation.
Repair vs. Replacement
A common question I get is whether a system should be repaired or replaced. If your ductwork is structurally sound but leaking at the joints, sealing is almost always the right choice. It’s a permanent fix that improves efficiency immediately.
However, if the ducts are crushed, collapsed, or made of outdated materials that are falling apart, sealing won't solve the underlying problem. In those cases, I'll be honest with you about the cost-benefit of a partial or full duct replacement. My goal is to provide a solution that fits your property, not a generic recommendation that doesn't solve the comfort issue.
Investment and Value
Sealing 20–30% duct leakage typically reduces HVAC energy use by 15–25%. At current LA electricity rates, the payback period for professional duct sealing is often under two years. It’s one of the few home improvements that pays for itself through lower monthly utility bills.
We provide written estimates for all our work. Whether we are doing manual mastic sealing or the Aeroseal process, you will know exactly what the cost is before we start. We keep our pricing transparent so you can make an informed decision based on your home's specific needs.
Planning Your Service
In Pacific Palisades, we have to plan for specific access needs, such as roof access for condensers or routing drains to handle our damp coastal conditions. We coordinate with you to ensure our visit is as non-disruptive as possible.
Most residential duct sealing projects can be completed in a single day. If we use the Aeroseal process, we do recommend that you vacate the home for about 60 to 90 minutes while the injection process is running, but you can return as soon as it's finished.
Common Duct Mistakes
The biggest mistake I see is the use of standard silver 'duct tape' on HVAC systems. It dries out, the adhesive fails, and within a few years, you're back to having leaks. We use professional-grade mastic, which stays flexible and adheres for the life of the system.
Another mistake is ignoring the ductwork when replacing an HVAC unit. If you install a high-efficiency furnace or AC but leave your old, leaky ducts in place, you're essentially putting a high-performance engine in a car with a flat tire. We always check the ductwork during equipment upgrades to ensure you're getting the efficiency you paid for.
Health and Safety
Your indoor air quality is a priority. Leaky ducts don't just lose conditioned air; they can also pull in dust, insulation particles, or moisture from your attic or crawl space. By sealing these leaks, we prevent those contaminants from entering your airstream.
When we use Aeroseal, we use a non-toxic vinyl acetate polymer—the same material used in chewing gum. It’s safe for your home, and the process includes a verification phase to ensure the interior of your ducts is clean before we seal them. We take the safety of your home environment seriously.
Is Duct Sealing Right for You?
If your HVAC system runs constantly but struggles to reach the thermostat setpoint, or if you notice unusual dust accumulation near your registers, your ducts are likely the culprit. Duct sealing is a practical, effective way to stop energy waste.
If you are planning an HVAC replacement, ask us about duct testing. It’s part of the California Title 24 requirements for a reason—it ensures your new equipment performs the way it was designed to. Give LC Heating & Air a call at (323) 970-3113, and let's take a look at your system.
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
- • Duct inspection: $125–$200
- • Duct cleaning (whole house): $400–$900
- • Duct sealing: $1,000–$3,000
- • Duct repair or replacement: $500–$5,000
Useful next steps
Duct Sealing in Pacific Palisades at a glance
- • Duct Sealing provider: LC Heating & Air
- • Location served: Pacific Palisades, CA 90272
- • 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 Pacific Palisades
Reviewed by Leo, Owner & Lead Technician
This duct sealing guide for Pacific Palisades 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 Pacific Palisades customers say about duct sealing
Verified reviews from homeowners in Pacific Palisades and nearby neighborhoods who used our duct sealing service.
“Had LC install a Daikin mini split in our 1940s bungalow that never had AC. The work was clean, the unit is incredibly quiet, and our bedroom finally stays cool in summer. Highly recommend.”
“We converted our garage into an ADU and needed HVAC. LC installed a Mitsubishi single-zone mini split — permits, electrical, everything. The unit is so quiet you can barely hear it running. Our tenant loves it.”
“Got a 3-zone Daikin system for our craftsman home — bedrooms upstairs, living room downstairs. Each room has its own temperature control and the monthly electric bill is actually lower than our old window units combined.”
