Whole-home duct cleaning
Dryer vent cleaning
Camera inspection
Sanitizing & deodorizingWhole-system duct and dryer vent check with before-and-after photos - you see exactly what came out of your vents
That "$99 whole-house special" is a bait ad - the real number appears once they are in your hallway, or the "clean" is a shop-vac at the register. We photograph the inside of your ducts before and after instead.
Fast, Reliable Duct Sealing Across Panorama City
Duct sealing in Panorama City typically costs between $450 and $1,400 depending on how much of your system needs attention, and most jobs finish in a single visit. We work on the 1950s and 1960s tract homes and apartment buildings that make up most of this neighborhood, so we know what those original metal ducts look like after sixty-plus Valley summers. If your registers blow weak, your cooling bill keeps climbing, or rooms on the far side of the house never reach the temperature on the thermostat, call (661) 523-0295 and we’ll send a background-checked, uniformed technician to take a real look.
Why Hollis Air Duct Santa Clarita Is Panorama City’s Preferred Duct Sealing Company
We’ve worked in enough Panorama City homes to know the difference between a duct system that needs cleaning and one that needs sealing. Those distinctions matter. A cleaning removes debris. Sealing stops the air you already paid to cool from leaking into an attic or crawlspace before it ever reaches your living room. Our crews arrive inside the quoted window, write the price down before any work starts, and every job is covered by the 365-Day Done Right Promise in writing. If the seal fails within a year, we come back and make it right at no charge. That’s the Duct Sealing standard we run on, and it applies to every home we touch in Panorama City.
Roy Castellanos leads our crew, and he’s firm about one thing: the price on the estimate is the price on the invoice. No moving targets once the van is parked outside. Homeowners off Van Nuys Blvd, Roscoe Blvd, and Nordhoff St call us because they’ve had the opposite experience with other companies. We show up in uniform, we explain what the camera inspection found, and we leave the job site cleaner than we found it. Phones are answered by a live person 24 hours a day, 7 days a week.
Styles & brands we work with
Duct Repair in Panorama City
Duct repair in Panorama City is what we do when a section of your system has physically failed: a joint has pulled apart, a section has collapsed, or a rodent has chewed through flex duct in a crawlspace. The original galvanized steel ducts in your 1950s ranch or 1960s apartment building were installed before mastic sealing was standard practice. They were snapped together and often left with gaps at every connection. Six decades of thermal expansion and the constant vibration from blower motors has worked those connections loose. Duct repair in Panorama City addresses those failures directly, and it typically runs $180 to $600 depending on access and how many connections need reinforcement.
Repairing Separated Joints
When a supply duct separates at the air handler or at a branch takeoff, your conditioned air dumps into the attic instead of the bedroom. That’s the single most common failure we find in Panorama City homes. We reconnect the sections, reinforce the connection with sheet metal screws, and seal the seam with duct mastic so it holds under pressure.
Replacing Damaged Sections
Crushed flex duct in a crawlspace or corroded metal in an attic needs replacing, not patching. We carry lengths of R-6 and R-8 flex duct plus 26-gauge and 30-gauge sheet metal on the truck so we can handle most replacements in one trip.
Air Duct Sealing in Panorama City
Air duct sealing in Panorama City is the process of closing every gap, seam, and pinhole in your ductwork so the air your HVAC system moves goes where the thermostat wants it. Here’s what that means in practice: a technician runs a camera through your ducts, maps the leaks, then works through the system sealing with mastic, metal tape, or a combination depending on the surface. Air duct sealing in Panorama City costs $450 to $1,400 for a typical single-family home. The range reflects how much of the system is accessible from the attic or crawlspace and how many linear feet of duct need work.
Mastic Sealing on Metal Ducts
On original 1950s galvanized ducts, mastic is the right tool. It brushes on as a thick paste and cures to a hard, flexible seal that doesn’t dry out and peel like the old cloth tape we find in most Panorama City attics. Properly applied mastic lasts as long as the duct itself.
Aeroseal Alternative for Tight Access
When ducts run through finished ceilings or tight crawlspaces we can’t reach, we offer Aeroseal, a polymer that’s injected into the system and fills leaks from the inside. It’s not right for every home, but for accessible ductwork with moderate leakage, it’s a good option we’ll explain honestly.
Trusted Brands We Service in Panorama City
We service and seal duct systems connected to every major HVAC brand installed across the San Fernando Valley, including Carrier, Lennox, Trane, Rheem, and Goodman. Our sealing materials and inspection equipment come from Rotobrush and Nikro, the same professional-grade tools commercial contractors use, not hardware-store substitutes. We keep stock of mastic, metal tape, flex duct, and common fittings on every truck so we can complete most Panorama City jobs without ordering parts. That means your seal isn’t waiting on a parts counter in Van Nuys.
See the difference
Before
After
Before
After
Before
AfterCommon Duct Sealing Problems We See in Panorama City Homes
- Original mineral wool insulation shedding into ducts. Many 1950s and 1960s Panorama City homes still have mineral wool insulation packed around or inside duct runs. When the ducts flex or when previous cleaning knocked the insulation loose, fibers enter the airstream. Sealing the inner liner before the fibers reach living spaces is a job we handle with care.
- Separated supply and return connections at the air handler. On a 1950s tract home off Van Nuys Blvd, our techs found the supply and return ducts had separated at the air handler, pulling attic dust into every register. We used camera inspection to map the leaks, then sealed the metal seams with mastic and reinforced the connections before retesting static pressure. The blower motor stopped laboring and register airflow increased noticeably.
- Negative pressure from long runs to added rooms. Poorly sealed supply ducts on long runs to converted garages or added bedrooms create negative pressure that pulls in garage fumes or crawlspace air. Sealing those runs restores positive pressure inside the envelope.
- Leaky joints wasting cooling during Valley heat waves. Leaky duct joints in original 1950s metal ducts allow attic dust and insulation to enter the airstream while wasting cooling capacity during the hottest months. We find this in nearly every Panorama City home we inspect for the first time.
Pricing for Duct Sealing in Panorama City, CA
A typical duct sealing job in Panorama City runs $450 to $1,400 for a single-family home. Small apartment units in buildings near Roscoe Blvd or Nordhoff St can come in under $450 when access is simple and the duct run is short. Larger homes with long attic runs or multiple zone systems go higher. What moves the number: how many linear feet of duct need attention, whether the attic is walkable or we need to work around framing, and how many connections have failed. We give every Panorama City homeowner a written price before any work starts, and that number does not change when the technician is inside. Call (661) 523-0295 for a free estimate.
We Also Serve Cities Near Panorama City
Our crews cover the surrounding communities of Mission Hills, San Fernando, Granada Hills, and Sylmar. If you live in one of those areas and need Duct Sealing in Panorama City standards applied to your home, we’ll schedule a visit and bring the same written pricing and 365-Day Done Right Promise with us.
Serving Panorama City, CA - Our Local Coverage Area
We’re based in the Panorama City area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Duct Sealing in Panorama City
You need sealing if your cooling bills climb every summer, if some rooms never reach the thermostat setting, or if you smell attic dust when the system kicks on. A camera inspection will show exactly where air is leaking. Call (661) 523-0295 and we’ll run the camera and show you the footage before quoting anything.
Yes. Sealing closes the gaps where dust, pollen, and road grit get pulled into the duct system from outside. You’ll notice it most during dry Valley months when wind carries dust from unpaved roads and open land. Sealing won’t eliminate the need for occasional cleaning, but it cuts how fast dust re-enters your system.
For a rural property near Panorama City with open land and wood heat, plan on duct cleaning every 2 to 3 years and consider our Dryer Vent Cleaning in Panorama City as part of your maintenance routine. Wood smoke deposits a fine film that builds faster than typical city dust. Sealing should be done once and then re-inspected every 3 to 5 years, because shifting soil and temperature swings can open new gaps over time.
It can if it’s done carelessly. We inspect the inner liner before sealing and take steps to stabilize mineral wool that’s already shedding. Aggressive cleaning or sealing techniques can dislodge fibers, so we use controlled methods and camera verification before and after the work. This is a condition we see far more often in Panorama City than in newer Valley neighborhoods like Porter Ranch.
Yes. Most uneven cooling in Panorama City homes comes from pressure loss in long duct runs. When supply ducts leak into the attic, the farthest registers starve for air. Sealing restores pressure along the entire run, which usually evens out room temperatures. Start with a free inspection at (661) 523-0295.
Written by Roy Castellanos, Owner at Hollis Air Duct Santa Clarita, serving Panorama City and the San Fernando Valley.
Ready to stop paying to cool your attic? Call (661) 523-0295 today. We’ll schedule a camera inspection, show you what’s in your ducts, and put a written price in your hand before any work begins.