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 Largo
Air duct cleaning in Largo typically runs $350 – $650 for a full residential system and is usually scheduled within a few business days, not weeks. We’re the local crew that shows up on time, prices the job in writing before touching anything, and stands behind it for a full year.
Hollis Air Duct Cleaning has been serving Largo homeowners since 2004 as part of the Garrison Partners family. Our technicians know the Pinellas peninsula’s specific problems: Gulf humidity that never lets up, salt-laden air that corrodes metal ductwork, and fine beach sand that standard vacuums can’t fully extract. We dispatch from our South Florida scheduling office and coordinate crews who work Largo regularly, from the 55+ communities along East Bay Drive to the older ranches near Largo Central Park and the mobile home parks off Ulmerton Road. Call us at (361) 326-5060 for a free estimate.
Why Hollis Air Duct Cleaning Is Largo’s Preferred Air Duct Cleaning Company
We’ve built our reputation in Largo on showing up when we said we would and leaving the price where we wrote it down. That sounds basic, but in this trade it’s rare enough that our customers mention it in nearly every review.
Our crews know Largo’s housing stock. Most homes here are single-story block ranches and villas built from the 1950s through the 1980s, plus a large concentration of 55+ mobile home parks and mid-rise condos. Many have original galvanized metal or flex duct runs with minimal insulation. The humid climate means duct joints often leak and collect condensation. We don’t walk into your home guessing.
Every Hollis technician is background-checked and uniformed, and we follow The Garrison Code on every job: arrive inside the quoted window, price in writing, complete the work by the book, and leave the site clean. Our 365-Day Done Right Promise covers every job 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, 7 days a week. No voicemail loops, no callback queues, no waiting until Monday.
Air Duct Inspection in Largo
Air Duct Inspection in Largo is the first step we recommend for any homeowner who hasn’t had their ducts examined in three or more years, especially given our Gulf humidity and salt air. The inspection involves feeding a high-resolution camera through your supply and return runs, checking the air handler and blower motor for mold or rust, and documenting any leaks, blockages, or damage. In Largo, we typically find condensation damage, beach sand accumulation, and mold colonies on wet coils that homeowners never knew existed. A full inspection runs $150 – $250 and takes 45 – 90 minutes.
What We Document
Our techs record video of every section they can access, noting rust on galvanized metal, separation in flex duct joints, and sand buildup that restricts airflow. You see what we see. No guesswork, no scare tactics.
When Largo Homeowners Need It Most
Schedule an inspection if you notice musty odors when the AC kicks on, uneven cooling between rooms, or allergy symptoms that worsen indoors. In Largo’s 55+ communities, where residents are home all day, these signs often show up earlier and matter more.
Residential Air Duct Cleaning in Largo
Residential Air Duct Cleaning in Largo removes the accumulated dust, sand, pollen, and mold that builds up in ductwork over years of constant AC use. Our process uses a Rotobrush rotary brush system to agitate debris from duct walls, combined with negative-air machines from Nikro that maintain suction and HEPA filtration so nothing recirculates into your home. We also inspect and seal leaking joints with mastic to prevent Gulf humidity from recontaminating the system. A typical residential cleaning in Largo runs $350 – $650 depending on system size and accessibility.
Full System Source Removal
We clean supply ducts, return ducts, and the air handler itself. In older Largo homes with original galvanized runs, we pay special attention to rusted sections that may need repair or replacement rather than just cleaning.
Post-Cleanup Verification
After agitation and vacuuming, we run the air handler to confirm the blower motor isn’t overloaded by disturbed dust. We also check that sealed joints hold negative pressure. This step matters especially in Largo’s older mobile home parks, where underbelly flex ducts are prone to moisture intrusion.
Trusted Brands We Service in Largo
Our equipment roster includes Rotobrush rotary brush systems, Nikro negative-air machines, and filtration products from Honeywell, Aprilaire, Abatement Technologies, and Guardsman. These are the same tools commercial crews use, not hardware-store gear. For Largo customers, this means we can source replacement filters, UV lights, and sealing materials without long delays. If your system needs a specific Honeywell media filter or an Aprilaire dehumidifier add-on after cleaning, we typically have it or can get it within a day or two.
Common Air Duct Cleaning Problems We See in Largo Homes
- Mold in galvanized supply runs. Largo’s year-round humidity and salt-laden air promote rapid mold growth on original metal ducts, especially near the air handler where condensation collects. Camera inspection usually reveals colonies that homeowners never suspected.
- Beach sand restricting airflow. Fine silica from the Pinellas beaches gets pulled into outdoor intakes and settles in ductwork. Standard vacuums stir it up; our negative-air HEPA system removes it.
- Rusted flex ducts in mobile home parks. In communities off Ulmerton Road, underbelly ductwork sits close to sandy soil. Moisture intrusion rusts out flex ducts and creates mold conditions we rarely see in slab-on-grade homes just inland.
- Leaky joints pulling in humid outside air. Original duct sealing fails over decades, allowing Gulf humidity to enter and condense on cool duct surfaces. Cleaning without sealing just invites recontamination within weeks.
Pricing for Air Duct Cleaning in Largo, FL
Here’s what honest pricing looks like for Largo’s market. A full residential system cleaning runs $350 – $650. Air duct inspection is $150 – $250. Dryer vent cleaning, often scheduled together, adds $120 – $200. Commercial systems start around $800 and scale with square footage and HVAC complexity.
What moves the price: system size, number of returns and supplies, accessibility (crawl spaces and attic runs take longer), and whether we find damage requiring repair or sealing. We give you one flat price per system, agreed in writing before work starts. No per-vent pricing, no add-ons at the door. You’ll see before-and-after photos of your own ducts. Call (361) 326-5060 for a free estimate.
We Also Serve Cities Near Largo
Our crews work throughout Pinellas County, including Largo, Clearwater, Seminole, Dunedin, and Pinellas Park. If you’re searching for Air Duct Cleaning anywhere in the metro, we coordinate scheduling from our Miami office and dispatch technicians who know the local housing stock and climate conditions.
Serving Largo, FL - Our Local Coverage Area
We’re based in the Largo 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 Largo
Most Largo homes need cleaning every 3 – 5 years, though homes within a few miles of the beach or with residents who are home all day may benefit from inspection every 2 – 3 years. The combination of constant AC use, Gulf humidity, and airborne sand accelerates buildup. Call (361) 326-5060 to schedule an inspection and we’ll tell you honestly whether yours needs work now or can wait.
Yes, when the source of symptoms is actually in the ductwork. Cleaning removes accumulated pollen, dust, mold spores, and sand that recirculates through the home. In Largo’s 55+ communities, where residents spend more hours indoors, we often see improvement within days. But we won’t promise miracles if your symptoms come from outdoor allergens or other sources. Our inspection identifies whether ducts are the problem.
The underbelly flex ductwork sits close to sandy soil, making moisture intrusion and rust far more common than in slab homes. We often find collapsed or rusted-out sections that need replacement, not just cleaning. Our techs know to inspect the full underbelly run and check for proper vapor barrier integrity.
We schedule around your day. Morning bridge games, afternoon appointments, nap times. We confirm the window in advance, arrive inside it, and complete most residential jobs in 3 – 5 hours. Our technicians work quietly and leave the site clean. If you need a specific start time, we’ll do our best to accommodate.
Yes. Fine silica sand and salt residue require HEPA filtration and true negative-air containment, not a shop vacuum. Our Nikro negative-air machines maintain constant suction while our Rotobrush agitation loosens bonded debris. Without this combination, cleaning stirs up particles instead of removing them, which can worsen indoor air quality.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Largo since 2004.




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