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.
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Before
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Before
AfterAir Duct Cleaning Company in Charleston, SC
Air duct cleaning in Charleston, SC runs $350 – $650 for a typical whole-home system, with most jobs completed in a single visit. What drives the price and the method is Charleston’s unique combination of salt-laden coastal air, year-round humidity above 70% dew point, and a housing stock that spans 300 years of construction. At Hollis Air Duct Cleaning, we price every job in writing before we start, back it with our 365-Day Done Right Promise, and dispatch crews who know the difference between a historic single house on the peninsula and a mid-century ranch in West Ashley. Call (361) 326-5060 for a free estimate.
Why Charleston Homes Are Different
Charleston’s subtropical climate is the first thing that changes how we clean ducts here. Summer dew points regularly climb above 70°F, and hurricane season pushes salt spray miles inland. That humidity plus salt creates a one-two punch: mold colonies grow inside damp ductwork, while metal components corrode faster than they would even twenty miles inland. We’ve opened systems in James Island homes where the trunk line looked fine from the register but was rusted through at the seams.
The housing stock compounds this. Downtown’s historic single houses and antebellum homes, many on the National Register, were built long before forced air. Ductwork got retrofitted into attics and crawlspaces with tight clearances, often using flex duct attached to original floor registers. In the 1980s especially, contractors ran flex through plaster walls without proper sealing. The result is a black, sticky biofilm, unique to Charleston, that combines plaster dust, sea air, and microbial growth. Standard vacuums won’t touch it; we deploy antimicrobial fogging with Rotobrush rotary systems to break it down and extract it.
Outside the peninsula, West Ashley and North Charleston are full of mid-century ranches with original galvanized ductwork. That metal corrodes visibly in coastal air. After king tides or hurricane surge, crawlspace ducts in neighborhoods like the Eastside often need full replacement, not just cleaning, due to saltwater damage. We assess this before we quote, not after we arrive.
Our Main Charleston Services
Charleston homeowners call us for three core services, each handled with equipment and methods matched to local conditions.
Air Duct Cleaning in Charleston
Our Air Duct Cleaning in Charleston covers the full supply and return system: rotary brush agitation with Rotobrush equipment, negative-air extraction via Nikro machines, and register-by-register inspection. In Charleston, we pay special attention to flex duct connections in historic homes, where salt corrosion weakens tape and mastic seals. We finish with antimicrobial fogging when mold or biofilm is present, and we photograph the before and after for your records.
Duct Sealing in Charleston
Our Duct Sealing in Charleston closes the gaps that Charleston’s humidity and salt exploit. We use mastic and metal-backed tape, not duct tape, to seal joints in galvanized trunk lines and flex connections. In historic homes with retrofit ductwork, sealing often delivers more comfort improvement than any other single service, because those systems were never designed as a whole. We test with a duct blaster and show you the leakage number before and after.
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 Charleston
We stock parts and filters from Honeywell, Aprilaire, and Guardsman, and we clean systems built with Abatement Technologies components. Most filter replacements and minor repairs ship same-day or next-day through our Charlotte coordination office. See our brands for the full list.
Pricing for Air Duct Cleaning Company in Charleston, SC
| Service | Typical range in Charleston |
|---|---|
| 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 – $200 |
| Dryer vent cleaning (long run or rooftop exit) | $180 – $280 |
| Duct sealing (whole system, single unit) | $800 – $1,500 |
| Duct sealing (historic home, complex layout) | $1,200 – $2,200 |
| Antimicrobial fogging (add-on to cleaning) | $75 – $150 |
| Crawlspace duct replacement (per section) | $400 – $800 |
| Register and boot cleaning (additional) | $15 – $25 each |
| HVAC filter replacement (standard 1″) | $25 – $45 |
| HVAC filter replacement (media 4-5″) | $65 – $120 |
Three factors push Charleston prices toward the high end: homes with more than ten registers, crawlspace access requiring remediation for moisture or mold, and historic structures where we must protect original plaster and heart-pine floors during work. Whatever your situation, we write the price down before we start, and that number does not move at the door.
Neighborhoods We Serve in Charleston
We run calls across the Charleston metro, from the historic peninsula to the outer islands. Crews are dispatched from our Charlotte coordination office, with routing optimized for same-week scheduling throughout the area.
- Downtown / Historic District
- West Ashley
- North Charleston
- James Island
- Mount Pleasant
Service Area – Cities Near Charleston
Our service radius extends up the coast and inland from Charleston proper. We regularly schedule jobs in Myrtle Beach, SC and communities along the Grand Strand, as well as Summerville, Goose Creek, and Johns Island. Call (361) 326-5060 to confirm coverage for your address; if you’re within reasonable driving distance of Charleston, we’ll get you on the calendar.
Serving Charleston, SC - Our Local Coverage Area
We’re based in the Charleston 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 Charleston
No permit is required for routine duct cleaning in Charleston. If we find ducts damaged by flooding or corrosion and you choose replacement, we handle any necessary permits as part of that project. Historic district work may require notification to the Board of Architectural Review if exterior modifications are involved, which we coordinate.
We typically schedule within one week for standard cleaning, and within 48 hours if you’ve had flooding or suspect mold growth after a storm. Dispatch is coordinated from our Charlotte office, with crews routed daily across the Charleston metro. Call (361) 326-5060 for the next available opening.
Yes. We work in HOA communities throughout Charleston, including gated neighborhoods in Mount Pleasant and West Ashley. Our technicians arrive in marked vehicles, in uniform, with background checks on file. We carry proof of insurance and can provide COI documentation to your HOA office on request.
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 Charleston Customers Say
"Duct sealing along with the cleaning cut our summer bill. Straight talk and fair price."
- Gwen O."Sealed some leaking duct joints in the crawl space with mastic. Rooms that were always cold now get air."
- Ronald W."Dryer vent was packed with lint and took two hours to dry a load. Cleaned it out from the roof cap down. One cycle again."
- Paula Q.