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.
Air Duct Cleaning Company in Green Cove Springs, FL
Air duct cleaning in Green Cove Springs runs $350 – $650 for most whole-home systems, with dryer vent cleaning adding $120 – $220 and duct sealing ranging $800 – $1,800 depending on system size. What drives the price here isn’t just square footage; it’s the St. Johns River humidity that turns ductwork into a breeding ground for mold and mildew, especially in flex-duct runs. We’re Hollis Air Duct Cleaning, and our crews handle both the 1950s galvanized trunks near the old Clay County courthouse and the modern flex systems in Fleming Island and Magnolia Point. Call (361) 326-5060 for a written estimate before any work starts.
Why Green Cove Springs Homes Are Different
Green Cove Springs sits in a humid subtropical pocket along the St. Johns River where HVAC systems work almost year-round. That constant airflow, combined with riverfront moisture, means biological growth inside ducts outpaces simple dust accumulation. In spring, after the oak and riverfront pollen wave, we regularly find flex-duct runs in Fleming Island and Magnolia Point homes that smell like river mud or mildew – humidity has condensed inside the duct, not just collected surface dust.
The housing stock here is split in ways that matter for equipment choice. Near downtown and the Clay County courthouse area, 1950s – 70s concrete-block and brick ranch homes often still run original or partially replaced galvanized metal trunk lines. Those take a rotary brush system with real torque. In newer master-planned subdivisions like Reynolds Ranch, R-6 or R-8 flex duct dominates, and that requires gentler negative-air extraction to avoid tearing the liner. Our crews carry both Rotobrush rotary systems and Nikro negative-air machines because we never know which we’ll face until we’re inside the attic.
Short mild winters mean many Green Cove Springs homeowners shut systems down briefly in January, then fire them back up in March to a musty blast. That first-run smell is usually mold spores that colonized during the idle weeks. It’s a local pattern we account for in our inspection.
Our Main Green Cove Springs Services
Green Cove Springs homeowners call us for three jobs, each with its own page and pricing details below.
Air Duct Cleaning in Green Cove Springs
Whole-home air duct cleaning here covers supply and return trunks, branch lines, and registers using either rotary brush or negative-air methods matched to your duct type. In Green Cove Springs, we pay special attention to flex-duct condensation points near the St. Johns River, where humidity breaches can coat the interior with a biofilm that standard dust removal won’t touch. We run a post-clean camera inspection so you see the before and after. Air Duct Cleaning in Green Cove Springs

Dryer Vent Cleaning in Green Cove Springs
Dryer vent cleaning removes lint buildup from the appliance connection through the exterior termination, measured with an airflow meter before and after. In Green Cove Springs’s older ranch homes near downtown, we often find vents routed through crawlspaces or long horizontal runs under slab foundations – configurations that trap moisture from river-humid air and accelerate clogging. We clear the full run and verify airflow meets manufacturer spec. Dryer Vent Cleaning in Green Cove Springs

Duct Sealing in Green Cove Springs
Duct sealing closes leaks in trunk lines, plenums, and junctions using mastic or aerosol sealant, depending on access. Green Cove Springs’s split housing stock means we seal corroded metal seams in mid-century systems one day and flex-duct collar separations in new construction the next. Unsealed ducts in humid climates pull attic air and moisture directly into your living space, working against the AC and raising bills. We test leakage with a duct blaster and show you the numbers. Duct Sealing in Green Cove Springs

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Green Cove Springs
We stock parts and filtration products from Honeywell, Aprilaire, and Guardsman, and our cleaning equipment includes Rotobrush rotary systems and Nikro negative-air machines. Most filter swaps and basic hardware are same-visit; specialty Aprilaire or Honeywell media upgrades we order direct and return to install. our brands
Pricing for Air Duct Cleaning Company in Green Cove Springs, FL
| Service | Typical range in Green Cove Springs |
|---|---|
| Whole-home air duct cleaning (single system) | $350 – $650 |
| Whole-home air duct cleaning (two systems) | $550 – $950 |
| Dryer vent cleaning (standard through-wall) | $120 – $220 |
| Dryer vent cleaning (long run or roof termination) | $180 – $320 |
| Duct sealing (aerosol method, single system) | $800 – $1,400 |
| Duct sealing (mastic hand-seal, accessible ducts) | $600 – $1,000 |
| Duct sealing (two systems or complex layout) | $1,200 – $1,800 |
| Register and grille deep cleaning (add-on) | $75 – $150 |
| UV light installation (biological control) | $250 – $450 |
| HEPA filtration upgrade (Honeywell/Aprilaire) | $200 – $500 |
What pushes Green Cove Springs prices toward the high end: multiple HVAC zones, flex-duct with biofilm requiring antimicrobial treatment, and crawlspace or slab-duct access that adds labor. What keeps them lower: single-system homes with accessible attics and straightforward metal trunk lines. Either way, you get one flat price per system, written down before we start, and it does not move at the door.
Neighborhoods We Serve in Green Cove Springs
We run calls across the full Green Cove Springs area, from the historic downtown blocks near the Clay County courthouse to the riverfront subdivisions and newer master-planned communities. Most appointments are scheduled within a few days, with dispatch coordinated from our South Florida office and crews arriving in marked Hollis vans.
- Fleming Island
- Magnolia Point
- Reynolds Ranch
- Downtown Green Cove Springs
- Spring Park area
Service Area – Cities Near Green Cove Springs
Our crews regularly work the full Clay County and northeast Florida corridor. If you’re in Fleming Island, FL, Middleburg, FL, Orange Park, FL, or Jacksonville, FL, the same pricing, equipment, and 365-Day Done Right Promise apply. We do not charge extra for distance within this service radius.
Serving Green Cove Springs, FL - Our Local Coverage Area
We’re based in the Green Cove Springs 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 Company in Green Cove Springs
No permit is required for standard air duct cleaning or dryer vent cleaning in Green Cove Springs. Duct sealing that involves modifying trunk lines may need a simple mechanical permit from Clay County; we handle the paperwork if it’s required and include any fees in your written price. Call (361) 326-5060 and we’ll check your specific job.
Most Green Cove Springs appointments are scheduled within two to five business days, depending on season. Spring pollen season and pre-summer AC tune-up periods fill fastest. We do not overbook; your arrival window is written on the work order and we call 30 minutes out.
Yes. Homes near the St. Johns River, including parts of Fleming Island and Magnolia Point, often have duct runs in crawlspaces vulnerable to groundwater and humidity. We carry portable negative-air equipment that fits tight spaces and inspect for moisture damage before cleaning. If we find compromised flex duct, we’ll show you the photo and explain replacement versus cleaning.
What happens when you call
- 1A real person answersNo phone trees - talk to a local air duct cleaning pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Green Cove Springs Customers Say
"No sales pitch. Told me which parts of the system were fine and only cleaned what needed it."
- Ted L."They checked each section with a camera and showed me the dust before and after. Thorough and honest."
- Nicole H."Duct sealing along with the cleaning cut our summer bill. Straight talk and fair price."
- Gwen O.




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