LC Heating & Air provides professional duct sealing services to help Beverly Grove homeowners stop conditioned air from leaking into attics and wall cavities, ensuring your HVAC system works as efficiently as it should.
I’m Leo, owner of LC Heating & Air. I see a lot of homes in Beverly Grove where the HVAC system is working hard, but the rooms just don't feel right. Often, the problem isn't the furnace or the AC unit itself—it's the ductwork. If your ducts are leaking, you are paying to heat or cool your attic or crawl space instead of your living room.
My goal is to give you a clear, honest assessment of your system. We use diagnostic tools to measure exactly how much air you are losing. If your system is worth sealing, we will tell you. If the ducts are too far gone, I’ll be upfront about whether repair or replacement is the better path for your home.
Local HVAC considerations
Beverly Grove (90048)
CSLB #1073586
(323) 970-3113
Why Beverly Grove Homes Need Duct Sealing
In a neighborhood like Beverly Grove, we deal with everything from original sheet metal ducts in older homes to newer flex duct installations in remodels. A common pattern I see is uneven cooling, where one bedroom is freezing while the living room stays warm. This is almost always a sign that the airflow is being lost before it ever reaches the register.
Because of our local climate, your ducts are often sitting in hot attics. When those ducts leak, they pull in dust and insulation particles, which then get blown directly into your home. Sealing these leaks doesn't just save energy; it keeps your indoor air cleaner and stops the system from cycling constantly just to keep up with the heat gain.
Understanding Your Home's Ductwork
Beverly Grove has a mix of single-family homes, duplexes, and small multifamily buildings. In many of these properties, the ductwork is tucked away in tight attics or behind finished walls. When I come out to inspect your system, I’m looking at the duct condition, the insulation, and how the system was originally routed.
If you have an older home, those original ducts might have been sealed with materials that have long since dried out and cracked. If you have a newer remodel, the ducts might have been crushed or poorly connected during construction. We check these factors because they change the repair decision—sometimes a simple patch is all you need, and sometimes the duct run needs to be reconfigured.
Our Diagnostic Process
I don't believe in guessing. Before we touch a single duct, we perform a duct blaster test. This test quantifies exactly how much air is leaking out of your system as a percentage of total airflow. It gives us a baseline so you can see the difference after the work is done.
Once we have the numbers, we look at the physical access. If the leaks are in reachable areas, we use high-quality mastic. If the leaks are deep inside the walls or in inaccessible attic runs, we might recommend the Aeroseal process. We provide a written estimate based on these findings, so you know exactly what you are paying for before we start.
Repair vs. Replacement: Making the Right Call
A lot of contractors will try to sell you a full duct replacement the second they see a leak. That’s not how I work. If your duct system is structurally sound but just has a few loose joints or disconnected runs, a repair is the right choice. We can seal those up and get your system back to peak performance for a fraction of the cost of a full replacement.
However, if the ducts are collapsed, heavily contaminated, or made of outdated materials that are falling apart, patching them is just throwing good money after bad. In those cases, I will tell you that replacement is the smarter long-term investment. My job is to give you the information you need to make the decision that makes sense for your budget and your home.
What Affects the Cost?
The cost of duct sealing depends on the size of your home and the method we use. Manual mastic sealing for accessible areas is generally more affordable, while Aeroseal is a more involved process that seals the entire system from the inside out. We include before-and-after testing in our pricing so you have proof that the work was effective.
When you are looking at the cost, think about the energy savings. Sealing 20–30% duct leakage can reduce your HVAC energy use by 15–25%. At current LA electricity rates, that adds up quickly. We provide a written estimate so you can see the breakdown of the work before any equipment is moved or sealant is applied.
Scheduling Your Service
We know that having a contractor in your home is an inconvenience. We try to make the process as smooth as possible. Most residential duct sealing projects in Beverly Grove can be completed in a single day. We will coordinate with you on access to your attic, crawl space, and equipment closets.
If you are planning an HVAC replacement, it is the perfect time to address the ducts. We can perform the sealing as part of the project to ensure you meet California Title 24 requirements. Just give us a call at (323) 970-3113, and we can talk through your specific setup.
Health, Safety, and Air Quality
Duct sealing is about more than just energy bills; it’s about the air you breathe. If your ducts are leaky, they are pulling in air from your attic or crawl space. That air often contains dust, mold spores, and other pollutants that you don't want circulating in your home.
When we use the Aeroseal process, we use a non-toxic polymer that is safe for your home. It’s the same material used in chewing gum. We also make sure the system is tested and verified so you have peace of mind that your air is clean and your system is running safely.
Frequently Asked Questions
I get asked a lot of questions about ductwork. Here are the ones I hear most often from homeowners in Beverly Grove.
Is It Time to Seal Your Ducts?
If your HVAC system is running constantly but your home still feels uneven, or if your energy bills seem higher than they should be, it’s worth having us take a look. We don't just look at the equipment; we look at the whole system, including the ductwork, to see where the air is going.
If you’re in Beverly Grove, give LC Heating & Air a call at (323) 970-3113. We’ll come out, run the tests, and give you an honest answer about whether a repair will fix your comfort issues or if it’s time to consider a larger project. We’re here to help you make the right decision for your home.
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
Our duct sealing process in Beverly Grove
Reviewed by Leo, Owner & Lead Technician
This duct sealing guide for Beverly Grove 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 Beverly Grove customers say about duct sealing
Verified reviews from homeowners in Beverly Grove 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.”
