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 Huntington Beach
Duct sealing in Huntington Beach typically runs between $450 and $1,200 for a standard single-story ranch home, depending on how many leaks we find and whether old galvanized sections need replacement. If you’re losing cooled air into a hot attic or noticing dust blowing from your registers, the problem is usually corroded seams and separated joints. We serve every Huntington Beach neighborhood, from Edwards Hill to Sunset Beach, with written pricing before any work starts. Call (562) 548-7365 for a free estimate.
Why Hollis Air Duct Long Beach Is Huntington Beach’s Preferred Duct Sealing Company
Homeowners in Huntington Beach call us because we understand what salt air does to ductwork. Our crews work in these neighborhoods weekly, and we’ve seen the same pattern hundreds of times: galvanized steel that looked fine in 1975 now has pinholes you could push a pencil through. We don’t guess. We inspect with a camera before we quote, so the price covers what’s actually wrong, not what a technician hopes to sell you.
Every job gets a written price before work begins, and that price does not move at the door. Our technicians are background-checked and uniformed, and they follow The Garrison Code: arrive inside the window, explain the work in plain English, complete it by the book, and leave the site clean. If the sealing fails within a year, we return at no charge under the 365-Day Done Right Promise. That’s not a slogan. It’s in writing on every invoice.
Roy Castellanos leads our Huntington Beach crews with the same discipline he applies across every Hollis Air Duct job: use professional-grade equipment, document the work with before-and-after photos, and treat every home like someone’s mother lives there.
Styles & brands we work with
Duct Repair in Huntington Beach
Duct Repair in Huntington Beach usually means one of three things: patching or replacing corroded sections, reconnecting joints that have separated from sagging runs, or replacing rusted-out hangers that let the whole system droop. In the 1960s and 70s ranch homes that dominate this city, the original galvanized steel has spent five decades absorbing salt-laden ocean air or a lot of it has. In Huntington Beach, duct repair typically runs $250 to $800 for localized work. Full runs with multiple failed sections can push toward $1,500 when we have to remove and rebuild a section of trunk line.
Corroded Seam Repair
Seams are where duct sections join, and on old galvanized systems those seams are often just folded metal and maybe a few screws. Salt air works into the gaps and eats the metal from the inside out. We clean the area, apply mastic to seal the seam, and wrap it with foil tape rated for HVAC use. Mastic is a thick paste that hardens into a permanent seal, which matters more here than inland because ocean air keeps corroding thinner materials.
Hanger and Support Replacement
Rusted hangers let duct runs sag, and a sagging run pulls apart at the joints. That means your blower is pushing conditioned air into the attic instead of your living room. We replace failed hangers with corrosion-resistant hardware and re-level the run so every section sits tight against the next.
Air Duct Sealing in Huntington Beach
Air Duct Sealing in Huntington Beach is the process of closing every leak in your duct system so the air you paid to cool or heat actually reaches the rooms it’s meant for. In this city, the typical job covers supply and return trunks, branch runs, and the connections at the plenum and registers. We use a combination of mastic, foil tape, and Aeroseal-style aerosol sealing depending on the duct material and access. Huntington Beach homeowners should expect to pay $450 to $1,200 for a complete sealing job on a standard ranch home, with the higher end covering systems with extensive corrosion or difficult attic access.
Supply and Return Trunk Sealing
The trunk lines carry the largest volume of air, so a leak here costs you the most money. We seal every accessible seam on both the supply and return side. On older Huntington Beach systems, we often find the return side is worse because negative pressure pulls attic air and dust into the system through every crack.
Branch Run and Register Sealing
Branch runs feed individual rooms, and their connections at the trunk and at the register boot are common failure points. We seal these with mastic and tape, then verify the register is seated flush against the wall or floor opening. A loose register boot can leak as much as a hole in the trunk.
Trusted Brands We Service in Huntington Beach
We work on systems built around equipment from Rotobrush and Nikro, and we stock sealing materials and replacement components compatible with filtration brands including Aprilaire, Abatement Technologies, and Guardsman. That means when your Huntington Beach home needs a specific part to complete a sealing job, we usually have it on the truck or can source it same day from our Los Angeles supply chain. We also service duct sealing on systems with Honeywell zoning controls and Aprilaire filtration cabinets, so your whole air system stays consistent from filter to register.
Common Duct Sealing Problems We See in Huntington Beach Homes
- Salt-corroded seams on galvanized trunks: The ocean air works into folded metal seams and creates pinholes that leak conditioned air into the attic. We see this most often in homes off Beach Boulevard and Adams Avenue built before 1980.
- June Gloom condensation and mold: Cool, damp marine layer air condenses on cold duct surfaces during late spring and early summer. If ducts aren’t sealed, that moisture feeds mold that then blows into the house when the AC cycles on.
- Rusted hangers causing sagging runs: When hangers corrode through, sections of duct drop and separate at the joints. The system pulls in attic air at every gap, which is why some Huntington Beach homes have great airflow in one room and almost none in another.
- Slab-foundation duct chases with loose boots: Many postwar Huntington Beach homes route supply air through concrete slab chases. The register boots at floor level loosen over time and leak air into the chases, under the house, or behind the wall.
See the difference
Before
After
Before
After
Before
AfterPricing for Duct Sealing in Huntington Beach, CA
Here are honest ranges for Huntington Beach, based on the homes we actually work in here: a focused sealing job on one or two significant leaks runs $250 to $500. A full residential duct sealing on a single-story ranch with accessible attic runs $450 to $1,200. Add $300 to $700 if we need to replace corroded galvanized sections rather than seal them. What affects the price: attic access, how many leaks the camera inspection finds, whether the plenum needs reseating, and whether your system uses flex duct or rigid metal. We give you a written quote before any work begins, and that number is the number you pay. Call (562) 548-7365 for a free estimate in Huntington Beach.
We Also Serve Cities Near Huntington Beach
Our crews cover the surrounding communities including Westminster, Seal Beach, Stanton, and Garden Grove. If you’re just outside Huntington Beach city limits, we can still reach you quickly. Check our Duct Sealing service page for details on what the work includes, or see Duct Sealing in Huntington Beach for local specifics.
Serving Huntington Beach, CA - Our Local Coverage Area
We’re based in the Huntington Beach 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 Huntington Beach
Salt air accelerates galvanized steel corrosion, so duct seams that would last decades inland can fail in 20 to 30 years here. That means sealing materials matter: we use mastic and HVAC-rated foil tape because they resist the humid, salty conditions better than standard duct tape, which dries out and peels within a few seasons. In Huntington Beach, sealing is not a one-time fix; it’s part of maintaining an older system in a corrosive environment. Call (562) 548-7365 for a free inspection.
Plan on a professional inspection every 5 to 7 years for a 1960s or 70s ranch with original galvanized ducts. Sealing itself may need refreshing on that same interval if corrosion continues working on the seams. Homes that have already had sections replaced with modern sealed ductwork can often go 10 years between significant sealing work. We can inspect your system and give you a realistic timeline for your specific house.
It depends on what the camera inspection shows. Sealing works when the metal is intact but the seams and joints are leaking. Replacement is the better call when pinholes have spread across large sections or when the metal is so thinned that mastic won’t hold. We’ll show you the footage and recommend the option that makes sense for your system, with a written price before any work starts. Call (562) 548-7365 to schedule an inspection.
Yes, and it’s a bigger problem in Huntington Beach than in inland cities because the marine layer hangs over this stretch of coast for weeks at a time. When the outside air is cool and damp and the AC cycles on, condensation forms on cold duct surfaces. If the ducts aren’t sealed, that moisture sits in the seams and insulation and feeds mold growth. Sealing reduces the moisture that gets into the system in the first place, which is why we recommend it before the June Gloom season rather than after mold is already established.
Clean first, then seal. Cleaning removes the dust, salt residue, and debris that would otherwise get trapped under the mastic and tape. Sealing on a clean surface bonds better and lasts longer. We coordinate both services, so the crew cleans the system, inspects with a camera, and then seals every leak we found. You get one written price for the combined job. Call (562) 548-7365 for a free estimate.
Our Experience in Salt-Air Duct Sealing
Huntington Beach’s dense concentration of 1960s and 70s single-story ranch homes creates a very specific duct problem: original galvanized steel that has spent decades absorbing salt-laden ocean air. We’ve seen this exact pattern in the neighborhoods off Beach Boulevard and Adams Avenue, where sea breeze has eaten at the metal for 50 plus years. The result is not a single dramatic failure but a slow, steady decline: pinholes appear at the seams, hangers rust through, and the system quietly leaks more air every summer. That’s why duct sealing in this city is a recurring necessity, not a one-time upgrade.
Last month our crew sealed a supply trunk in a ranch home off Beach Boulevard where salt spray had eaten pinholes through the galvanized steel. We used camera inspection to map the corrosion, then applied mastic and foil tape to the seams and replaced two rusted-out hangers before rebalancing the air handler. The homeowner had been running the AC constantly and still couldn’t keep the living room below 80 degrees on a July afternoon. After sealing, the system held temperature with nearly 30 percent less runtime. That’s what happens when you seal real leaks instead of selling a generic package.
This page translates Huntington Beach’s salt-air duct corrosion into a specific sealing and inspection plan, so you don’t pay for generic sealing that fails in two years. The plan starts with a camera inspection of the trunk lines and branch runs, focuses on the seams and hangers most affected by ocean air, and ends with a written report of what we found and what we sealed. If a section is too far gone to seal, we’ll tell you that too, and price the replacement honestly.
Contact Us for Duct Sealing in Huntington Beach
If your Huntington Beach home has original ductwork, or if you’ve noticed rooms that never quite cool down, call (562) 548-7365 for a free estimate. Roy Castellanos and our crew will inspect your system with a camera, give you a written price, and if it’s not done right within a year, we’ll come back at no charge. That’s the 365-Day Done Right Promise, and it’s in writing on every job.
Written by Roy Castellanos, Owner at Hollis Air Duct Long Beach, serving Huntington Beach since 2004.