LC Heating & Air provides professional duct repair, sealing, and diagnostic testing to solve uneven room temperatures and high energy bills in West Hills homes.
Duct Cleaning & Air Duct Service in West Hills
LC Heating & Air provides duct cleaning in West Hills — 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 West Hills, 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 West Hills, you know that our hillside homes and canyon properties have unique challenges. Between the sun exposure, the slope of the land, and the way these houses were built, getting consistent airflow to every room can be a real headache. Often, the problem isn't the furnace or the AC unit itself—it's the ductwork hidden in your attic or crawl space.
Most homeowners don't realize that 20% to 30% of their conditioned air can be lost through leaks before it ever reaches the living space. When you call me, I don't just guess at the problem. I use diagnostic tools to find where the air is escaping, show you exactly what's going on, and give you a fair, honest assessment of whether a repair will fix your comfort issues or if the system needs more significant attention.
Call LC Heating & Air at (323) 970-3113 for scheduling and estimates.
Local HVAC considerations
Common Duct Issues in West Hills
In West Hills, we see a lot of specific duct problems related to how our homes are built. Because of the hillside terrain and tight-access mechanical areas, ducts often get crushed during attic maintenance or simply pull apart at the joints over time due to house settling. I frequently find disconnected flex duct runs, torn inner liners, and failed mastic at the supply plenums.
These leaks are a double-whammy for your comfort. In the summer, your system is trying to push cool air through a hot attic, and if your ducts are leaking, you’re losing that cold air into the attic space while pulling in dusty, hot air from the rafters. It makes your AC work much harder than it should, which leads to premature equipment wear and higher monthly bills.
How We Diagnose Your System
I don't believe in guessing. When I come out to your home, I start by measuring the airflow at your registers to see which rooms are underperforming. I’ll inspect the accessible ductwork in your attic or crawl space to look for obvious signs of damage, like crushed flex duct or disconnected boots.
For a more precise look, I use duct pressurization testing—often called a duct blaster test. This allows me to quantify exactly how much air your system is losing. Having this data helps us make an informed decision together. If the leaks are minor, we can seal them up. If the distribution system is failing, we’ll talk about the best path forward so you aren't throwing money at a repair that won't solve the root cause.
Repair or Replace?
A common question I get is whether it's worth fixing old ducts or if they should just be replaced. My philosophy is simple: if the ductwork is structurally sound but has leaks at the joints or minor tears, a repair is usually the right choice. We can use mastic and foil tape to seal those leaks effectively.
However, if the ductwork is crushed, undersized for your equipment, or so deteriorated that it's falling apart, patching it is just a band-aid. In those cases, I’ll tell you straight. I’d rather you know the reality of the situation before we start work so you can make the decision that makes the most sense for your home and your budget.
Air Quality and Safety
Duct leaks aren't just about losing money on your energy bill; they affect the air you breathe. When your return ducts leak in an attic, they act like a vacuum, pulling in insulation fibers, dust, and potentially mold spores, and distributing them throughout your home. If you notice a musty smell when the HVAC kicks on, or if you're constantly dusting, your ducts are likely the culprit. Sealing those leaks stops the system from drawing in that attic air, which can lead to a noticeable improvement in your indoor air quality.
Understanding the Costs
I provide written estimates for all my work, so you know exactly what you're paying for before I start. Targeted repairs for specific leaks usually range from $200 to $600. For more comprehensive sealing of a full duct system, costs typically fall between $800 and $2,000. If your ducts are in hard-to-reach areas, we might look at Aeroseal, which seals leaks from the inside, usually running $1,500 to $3,000. Every home is different, especially in West Hills, so I’ll assess your specific layout and give you a clear price.
Scheduling Service in West Hills
Working in West Hills means I have to be prepared for the terrain. Whether your home is on a steep slope or has a narrow access point for the attic, I plan for it. I make sure I have the right ladders and tools to safely access your equipment. When you call (323) 970-3113, we’ll find a time that works for you. I respect your time and your home, and I make sure that my service visit is as efficient and non-disruptive as possible.
Mistakes to Avoid
The biggest mistake I see is homeowners trying to fix major duct issues with standard duct tape. Real duct tape—the kind you buy at the hardware store—doesn't hold up to the temperature swings in an attic. It dries out, cracks, and falls off within a few months. Professional repairs require mastic or specialized foil tape that can handle the heat and pressure. If you're going to do it, do it right the first time so you don't have to pay someone like me to come back and fix the tape later.
How local homes affect your system — Duct Repair in West Hills
Age of construction and retrofit history in West Hills change duct paths, electrical capacity, and where duct repair equipment can be serviced safely.
Tighter envelopes and added ADUs often mean load has shifted even when the original HVAC was left unchanged.
Is Your System Worth Repairing?
That detail matters because it changes the repair decision. If the system is worth repairing, we will tell you. If the pattern points to replacement, we will explain why. The estimate should make sense before anyone touches the equipment.
I look at the age of your equipment, the condition of the duct material, and the extent of the leaks. If we can get your system back to peak performance with a targeted repair, that's what I'll recommend. If the ducts are failing in multiple places and the equipment is nearing the end of its life, I'll be honest about that too.
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 attic or crawl space
- • Extent of leakage quantified by testing
- • Type of repair required (manual sealing vs. Aeroseal)
- • Size of the home and duct network
Useful next steps
Duct Repair in West Hills at a glance
- • Duct Repair provider: LC Heating & Air
- • Location served: West Hills, CA 91307
- • 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 West Hills
Reviewed by Leo, Owner & Lead Technician
This duct repair guide for West Hills 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 West Hills customers say about duct repair
Verified reviews from homeowners in West Hills 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.”
