Duct Sealing in Burbank - Leakage Measured, Then Priced in Writing

Fast, Reliable Duct Sealing Across Burbank

Duct sealing in Burbank typically runs between $1,800 and $4,200 for a full system, with smaller repair jobs starting around $450. Most Burbank homes we visit were built between the 1940s and 1960s, and their original galvanized steel ductwork has been quietly leaking conditioned air for decades. That means higher utility bills, rooms that never quite reach the thermostat setting, and dust that keeps returning no matter how often you clean. Our crews work Burbank neighborhoods every week, from the flats near Olive Avenue to the hillside streets above Kenneth Road. We know these houses, and we know what their ducts look like inside. Call (626) 469-5477 for a straight answer and a written price before any work starts.

Why Hollis Air Duct Pasadena Is Burbank’s Preferred Duct Sealing Company

Burbank homeowners call us because they want a crew that shows up on time, prices the job before touching anything, and stands behind the work for a full year. That’s the Garrison Standard, and it’s written into every job we do. Roy Castellanos leads our team, and he holds every technician to Duct Sealing work that meets the same discipline: arrive inside the quoted window, explain what you’re doing in plain English, and leave the site cleaner than you found it.

What Burbank customers tell us they value most is that our written price doesn’t move at the door. A background-checked, uniformed technician arrives, inspects the ductwork, and hands you a number before any sealant comes out of the van. If the work fails within 365 days, we come back and make it right at no charge. That’s the 365-Day Done Right Promise, and it includes a free second visit. Not a pro-rated credit, not a “we’ll take a look” return trip. Written, guaranteed, done.

HVAC Duct Sealing in Burbank

HVAC Duct Sealing in Burbank means finding and closing every air leak in your duct system so conditioned air actually reaches the rooms you’re paying to heat and cool. We apply duct sealing mastic, a thick paste that hardens into a flexible, airtight seal, to every accessible joint, seam, and connection. In older Burbank homes, this is often the difference between a system that runs constantly and one that cycles normally. The cost for whole-system HVAC duct sealing in Burbank runs $1,800 to $3,800 depending on duct length, accessibility, and how many leaks we find. Homes with long hillside runs or original 1950s layout can run higher, and we’ll tell you exactly why before starting.

Accessible Duct Runs and Tight Spaces

Most Burbank single-family homes have at least some ductwork in the attic, and attics here get brutally hot in summer. That heat degrades old sealant faster than homeowners expect. We seal what’s reachable, then use a camera scope to inspect runs we can’t physically reach. If there’s a leak in a hard-to-access section, we tell you what it will take to reach it and include that in the written price.

Sealing After a Cleaning

If you’ve had your ducts cleaned and the dust came back within a month or two, leaks are usually the cause. Open seams in the return side of the system pull attic dust, insulation fibers, and whatever’s floating around your crawl space straight into the air handler. Sealing after a proper source-removal cleaning locks that down. We’ve done this for enough Burbank homeowners to know the pattern: clean first, seal second, and the dust stops coming back.

Duct Repair in Burbank

Duct Repair in Burbank usually means reconnecting runs that have separated, patching corroded holes, or replacing sections crushed beyond saving. In homes built during the 1940s through 1960s, the original galvanized steel ductwork has spent six or seven decades expanding and contracting with the weather. Seams corrode. Tape dries out. Sections sag and pull apart. Repair costs in Burbank typically run $450 to $1,600 for a single damaged run, and full-system repair and sealing on older homes ranges $2,200 to $4,200. We find the problem, show you what we found, and give you a written price to fix it.

Reconnecting Disconnected Runs

A disconnected duct in an attic pulls whatever’s up there into your home. In Burbank, that’s often fine silty dust from the Verdugo Mountains mixed with insulation fibers. We reconnect and seal these runs with mastic and sheet-metal screws, then wrap the joint to prevent future separation. The work is straightforward, but reaching a disconnected run in a tight 1950s attic is not, and that’s part of what you’re paying for.

Crushed and Collapsed Sections

Hillside homes often have long duct runs squeezed through awkward framing. Over decades, those runs get crushed, restrict airflow, and make sealing alone pointless. We’ll identify collapsed sections during inspection and replace them before sealing anything else. Sealing a crushed duct doesn’t fix the airflow problem. Repairing it does.

Trusted Brands We Service in Burbank

We service all major HVAC equipment in Burbank homes, and we carry or source parts for the brands most common here. That includes sealants and components compatible with systems from Honeywell and Aprilaire, along with inspection and cleaning equipment from Rotobrush and Nikro that matches what commercial crews use. If your system needs a specific component, we’ll tell you what it is, what it costs, and when it’ll be in. We don’t use whatever’s on the truck and hope it fits. We order what your system needs and schedule the repair around it.

Common Duct Sealing Problems We See in Burbank Homes

• Mastic cracked by Santa Ana winds. The low humidity during Santa Ana events pulls moisture out of duct sealant, causing it to dry, shrink, and crack. We see seals that looked fine a year ago now peeling open along the seam. Re-sealing with a flexible mastic rated for this climate is the fix.
• Galvanized ducts corroding at the seams. Original 1940s – 1960s galvanized steel was built to last, but not forever. Corrosion at seams opens air leaks that pull attic dust and insulation into your system. Sealing these seams closes the leak and extends the life of the ductwork.
• Hillside runs with crushed sections. Long duct runs squeezed through hillside framing get crushed over time. Sealing around a crushed section does nothing for airflow. We locate and replace those sections first, then seal the repaired system.
• Return grilles pulling from outside air. In areas like the Rancho Equestrian district, return ducts near windows or stable-side exterior walls pull fine dust and other airborne material into the system. Sealing the return side properly cuts that draw noticeably.

Pricing for Duct Sealing in Burbank, CA

We Also Serve Cities Near Burbank

If you’re just outside Burbank, we also cover Glendale, Altadena, Pasadena, and Alhambra. The ductwork problems are similar across the San Fernando Valley and San Gabriel Valley, but each city has its own quirks. We treat Duct Sealing in Burbank as its own service area because the housing stock and climate pressures here are specific, and that’s how we quote the work.

FAQs About Duct Sealing in Burbank

Why does duct sealant fail faster in Burbank than in Glendale or North Hollywood?

Burbank sits directly downwind of the Verdugo Mountains, where canyon winds carry fine silty dust that works its way into sealant surfaces, and the hot, dry Santa Ana conditions in fall cause mastic to dry out and crack within a few seasons. Glendale and North Hollywood see less of this combination, so seals there tend to hold longer. That’s why we use a flexible mastic rated for Burbank’s specific conditions and inspect older seals carefully before adding new material. Call (626) 469-5477 to have your current seals inspected.

We live in the Rancho Equestrian district. Is horse arena dust really getting into our ducts?

Yes. In the Rancho Equestrian district, we’ve pulled return grilles caked with a gray, fibrous mat of horse hair and arena dust. The constant airborne particles from stables and arenas get drawn into the return side of the system, especially if ducts are leaking. Our camera inspections in that area often show disconnected galvanized runs from the original 1950s installs. We remove the source material with HEPA filtration, then seal every supply and return duct to cut the dust draw. For a specific quote, call (626) 469-5477.

Our 1950s home has original galvanized ducts. Can they be sealed, or do they need full replacement?

Most original galvanized ductwork can be sealed and repaired rather than replaced. Corrosion at the seams is the main problem, and mastic sealing closes those leaks without tearing out walls. Full replacement only makes sense when ducts are severely crushed, rusted through in multiple sections, or sized wrong for the system. We’ll show you what we find during inspection and give you a written price for repair and sealing before recommending replacement. Call (626) 469-5477 for an inspection.

How often should I reseal ducts in Burbank given the Santa Ana winds?

Under normal conditions, properly applied duct mastic should hold for 10 to 20 years. In Burbank, the combination of low-humidity Santa Ana winds and fine Verdugo silt can shorten that to 5 to 8 years on exposed attic runs, especially hillside homes with long sun-baked sections. We recommend having your seals inspected every 3 to 5 years as part of regular maintenance, and re-sealing when cracking appears. For an inspection, call (626) 469-5477.

Can sealed ducts also help with the fine black dust from the 5 and 134 freeways?

Yes. Sealed ducts reduce the amount of exterior air and particulate pulled into your system through leaks in the return side. Fine black dust from the 5 and 134 freeway corridors settles on surfaces near intake points, and leaky ducts draw that material into the air handler. Sealing the return ducts cuts that draw substantially. It won’t eliminate exterior dust entirely, but it reduces how much of it circulates through your home. Call (626) 469-5477 for a quote on sealing your system.

Contact Hollis Air Duct Pasadena for Duct Sealing in Burbank

If your Burbank home has original ductwork, rooms that never reach temperature, or dust that comes back within weeks of cleaning, the problem is probably leaking ducts. We’ll inspect your system, show you what we find, and give you a written price before any work starts. That price covers the entire job, and it’s backed by the 365-Day Done Right Promise. Call (626) 469-5477 to schedule your free estimate. We answer the phone 24/7 with a live person, and we’ll get you on the schedule without a callback queue.

Written by Roy Castellanos, Owner at Hollis Air Duct Pasadena, serving Burbank with written prices and guaranteed work.