Whole-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 Air Duct Cleaning Across Seal Beach
Air duct cleaning in Seal Beach typically runs $350 – $650 for a full residential system, and most jobs are completed in a single visit with the price written down before we start. Hollis Air Duct Cleaning has served coastal Orange County since 2004, and our crews know the difference between a dry-dust inland job and the moisture-laden, salt-heavy work that Seal Beach homes require. Dispatch and scheduling are coordinated from our Los Angeles office, but the technicians who arrive at your door live and work in this market. They understand why a home near Ocean Avenue needs a different approach than one up in College Park. Call (361) 326-5060 for a free estimate.
Why Hollis Air Duct Cleaning Is Seal Beach’s Preferred Air Duct Cleaning Company
We’ve built our reputation in Seal Beach on showing up inside the window, pricing in writing, and leaving the site clean. That’s The Garrison Standard, and it applies to every job we run in Old Town, the Hill, and College Park. Our technicians are background-checked and uniformed, you know who’s arriving before they knock, and every repair carries the 365-Day Done Right Promise in writing. If the work fails within a year, we return and make it right at no charge, including a free second visit. Phones are answered by a live person 24 hours a day, seven days a week. No voicemail loops, no callback queues, no waiting until Monday for a scheduling question about your Seal Beach home.
Vent Cleaning in Seal Beach
Vent Cleaning in Seal Beach means more than brushing off a register cover. Coastal homes here pull in salt aerosol, fine diesel particulate from the nearby industrial corridor, and damp marine layer air that clings to vent interiors and encourages microbial growth. A proper vent cleaning removes the source material, not just the visible dust. In Seal Beach, we typically see vent cleaning priced at $150 – $300 per system when done as a standalone service, or included within a full duct cleaning package.
Supply Vent Cleaning
Supply vents push conditioned air into your rooms. In Seal Beach homes near the beach, these vents often show salt crust and corrosion that restricts airflow. Our techs remove each register, inspect the boot and first few feet of duct, and use rotary agitation tools to break loose particulate that has adhered to damp metal surfaces.
Return Vent Cleaning
Return vents draw air back to your HVAC unit. They are the collection point for whatever is circulating in your home. In coastal neighborhoods like Old Town, return vents frequently harbor damp, musty film from the marine layer. We clean the full return pathway, not just the grille, so the air moving through your system is actually filtered, not just recirculated.
Air Duct Repair in Seal Beach
Air Duct Repair in Seal Beach addresses the damage that salt air, moisture, and age inflict on duct systems that were never designed for coastal conditions. Flex-duct in attic spaces degrades from heat and humidity. Metal fittings corrode. Seams separate. A typical duct repair in Seal Beach runs $200 – $500 for localized fixes, while more extensive section replacement can reach $800 – $1,500 depending on accessibility and material. We write the price before we touch anything.
Corroded Fitting Replacement
Metal duct components within a few blocks of the sand, especially in Old Town and along Ocean Avenue, corrode faster than inland systems. Corroded fittings restrict airflow and trap particulate. We replace damaged fittings with corrosion-resistant materials and seal joints with mastic, not tape that will fail in damp conditions.
Flex-Duct Repair in Attics
The Hill’s 1960s and 1970s homes often have flex-duct runs in attics that have sagged, torn, or pulled loose from collars. Our techs assess the full run, replace damaged sections, and support the duct properly so it does not rest on insulation or framing where it will kink and restrict flow.
Trusted Brands We Service in Seal Beach
Hollis Air Duct Cleaning carries professional-grade equipment from Rotobrush, Nikro, and Abatement Technologies on every Seal Beach job. These are the same rotary brush systems, negative-air machines, and HEPA filtration units that commercial crews use in hospitals and schools. We also stock filtration products from Honeywell, Aprilaire, and Guardsman for homeowners who want to upgrade after a cleaning. Parts and filters are available with fast turnaround, so a Seal Beach customer who needs a register replaced or a filter upgraded does not wait on a warehouse shipment from out of state.
Common Air Duct Cleaning Problems We See in Seal Beach Homes
- Marine layer condensation in uninsulated supply trunks. Seal Beach’s cool, damp air settles into attic ductwork and condenses against warm interior surfaces. That persistent moisture feeds mildew growth that dry inland ducts rarely experience. Source removal with negative pressure and agitation is the fix. Fogging is not.
- Salt-encrusted registers and corroded metal components near the beach. Homes in Old Town and along Ocean Avenue show this pattern within years, not decades. Corroded registers restrict airflow and trap particulate. We replace damaged components with corrosion-resistant alternatives.
- Tight, retrofitted duct runs in mid-century homes. Old Town’s 1950s stock was not built for modern forced-air systems. Ducts are short, angled, and often inaccessible. Our techs use camera inspection and flexible agitation tools to navigate these runs without damaging original construction.
- Previous fogging treatments that masked odors without removing source material. We regularly find homes where a “sanitiser” spray eliminated smell temporarily while damp microbial film remained on duct walls. The odor always returns. Only mechanical source removal fixes the underlying problem.
Pricing for Air Duct Cleaning in Seal Beach, CA
A full residential air duct cleaning in Seal Beach typically costs $350 – $650 for a standard single-system home. Larger homes, multiple HVAC systems, or extensive contamination from moisture and salt particulate can push the upper end toward $800 – $950. Commercial duct cleaning in Seal Beach starts around $800 and scales with square footage and system complexity. What affects your price: the number of supply and return vents, accessibility of duct runs (attic versus crawlspace), whether video inspection reveals damage requiring repair, and the condition of the system. We do not quote per-vent. We quote one flat price per system, agreed in writing before work starts. Estimates are free. Call (361) 326-5060.
We Also Serve Cities Near Seal Beach
Our crews clean ducts throughout coastal and near-inland Orange County, including Air Duct Cleaning in Seal Beach proper plus Surfside, Los Alamitos, Cypress, and Hawaiian Gardens. If you are unsure whether your address falls in our service radius, call and we will confirm. Scheduling is coordinated from our Los Angeles office with local technicians dispatched to your area.
Serving Seal Beach, CA - Our Local Coverage Area
We’re based in the Seal 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 Air Duct Cleaning in Seal Beach
Seal Beach’s persistent marine layer keeps duct interiors damp year-round, and when warm interior air hits cool, uninsulated supply trunks, condensation forms. That moisture feeds microbial growth that dry inland ducts rarely support. The result is a musty odor that recirculates through your home. Call (361) 326-5060 for a free inspection and written estimate.
Yes. Homes within a few blocks of the sand, especially in Old Town and along Ocean Avenue, show salt-encrusted registers and corroded metal duct components far more often than homes just a few blocks inland. Corrosion restricts airflow and traps particulate. We replace damaged fittings with corrosion-resistant materials and seal with mastic. Call (361) 326-5060 to schedule an assessment.
A real duct cleaning uses mechanical agitation and negative pressure to remove source material, dust, and microbial film from duct walls. A fogging treatment sprays a chemical that may kill surface organisms but does not remove the underlying debris. In Seal Beach’s damp coastal systems, that debris remains, continues to harbor moisture, and the odor returns within weeks. We do not sell fogging as a substitute for source removal. Call (361) 326-5060 for a cleaning that actually removes the problem.
Seal Beach sits downwind of the Long Beach and Seal Beach Naval Weapons Station industrial zone. Afternoon onshore breezes push fine diesel particulate, salt aerosol, and port dust into residential HVAC intakes. Your filters catch some of it. The rest deposits in ductwork. Coastal Air Duct Cleaning here is as much about flushing industrial and marine particulate as it is about routine household dust. Call (361) 326-5060 for an estimate.
Yes. Old Town’s 1950s homes and similar mid-century stock throughout Seal Beach have short, angled ducts that were retrofitted for forced-air systems. We use camera inspection to map the run, then flexible rotary brushes and controlled negative pressure to clean without damaging original construction. The price is written before we start, and the work is covered by our 365-Day Done Right Promise. Call (361) 326-5060.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Seal Beach since 2004.




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