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 Crownsville, MD
Air duct cleaning in Crownsville, MD typically costs $450 – $850 for a whole-home system and should be scheduled every 3 – 5 years due to the area’s heavy tree pollen and humidity. Hollis Air Duct Cleaning serves Crownsville homeowners with written upfront pricing, background-checked uniformed technicians, and the 365-Day Done Right Promise on every job. Call us at (361) 326-5060 for a free estimate.
Crownsville isn’t like the tighter suburbs closer to Annapolis. Homes here sit on wooded acreage along Generals Highway, many with multiple HVAC zones, detached structures, and ductwork that spans centuries of construction styles. We’ve cleaned rotary brush systems in 1990s executive homes off Hawkins Road and negative-air jobs in colonial farmhouses where the chase was retrofitted through original plaster. The pollen load from Bacon Ridge Natural Area alone means Crownsville ducts collect a sticky green film that standard vacuuming won’t touch. We bring Rotobrush rotary systems and Nikro negative-air machines to every Crownsville job, matched to what your house actually needs.
Why Crownsville Homes Are Different
Crownsville’s housing stock splits into two distinct categories, and we see both in the same week. The colonial-era farmhouses near the historic district have plaster walls, irregular chases, and ductwork added decades after the walls went up. Flex duct squeezes through spaces never meant for it. Then there are the 1980s – 2000s custom builds on one-to-five-acre lots off Herald Harbor Road and Generals Highway, with rigid metal trunk lines, multiple zones, and sometimes separate systems for finished basements or detached garages.
The terrain changes the work too. Heavily wooded lots mean spring oak and pine pollen counts that dwarf nearby Severna Park. Summer humidity hangs in the canopy, and any duct leak pulls that moisture into the system. Fall leaf litter clogs outdoor intakes. We’ve found fresh-air returns completely coated in fine green pollen near Bacon Ridge Natural Area. Homes with crawl space or attic duct runs see mold where humid air meets cool metal. In Crownsville, duct cleaning isn’t a one-time reset. It’s seasonal maintenance shaped by the trees, the humidity, and the way your specific house was built.
Our Main Crownsville Services
Most Crownsville homeowners call us for one of three jobs. Each has its own page with full pricing, process details, and local specifics.
Air Duct Cleaning in Crownsville
We clean supply and return ductwork with either rotary brush or negative-air methods, depending on your system’s age and material. In Crownsville, that choice matters. Colonial farmhouses with flex duct retrofits need gentler rotary brush passes to avoid tearing seams. Newer rigid metal systems off Generals Highway can handle full negative-air extraction with HEPA filtration. We inspect every job first, explain the method in plain terms, and give you a written price before touching anything. Air Duct Cleaning in Crownsville covers full pricing and what to expect.
Dryer Vent Cleaning in Crownsville
Dryer vent cleaning in Crownsville runs into two local problems: longer vent runs through finished basements in custom homes, and exterior terminations that sit under dense tree cover. Lint builds faster when airflow is restricted by leaves or extended ducting. We use rotary brush and high-velocity air tools to clear the full run, then verify airflow at the termination. Every Crownsville dryer vent cleaning includes a written report on vent condition and any fire-safety concerns. Dryer Vent Cleaning in Crownsville has full details.
Duct Sealing in Crownsville
Duct sealing stops the leaks that pull humid outdoor air into your system and waste conditioned air in unfinished spaces. In Crownsville, we seal two types of problem jobs: colonial farmhouses where retrofit ductwork has separated at joints, and newer homes where flex duct has pulled loose from registers. We apply mastic sealant and mechanical fasteners, then pressure-test to confirm results. Sealed ducts mean less pollen infiltration, more even temperatures, and lower humidity load. Duct Sealing in Crownsville explains the full process.
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 Crownsville
We stock parts and filters for Honeywell, Aprilaire, and Abatement Technologies systems commonly found in Crownsville’s custom-built homes. Most filter replacements and component swaps ship within 24 hours through our Washington, DC coordination office. our brands
Pricing for Air Duct Cleaning Company in Crownsville, MD
| Service | Typical range in Crownsville |
|---|---|
| Whole-home air duct cleaning (single system) | $450 – $650 |
| Whole-home air duct cleaning (dual-zone or larger home) | $650 – $850 |
| Dryer vent cleaning (standard run) | $150 – $250 |
| Dryer vent cleaning (extended run or rooftop termination) | $250 – $350 |
| Duct sealing (partial system, mastic application) | $400 – $600 |
| Duct sealing (full system with pressure testing) | $800 – $1,200 |
| HVAC sanitizing/mold treatment (add-on) | $150 – $300 |
| Filter replacement (standard 1-inch) | $15 – $35 |
| Filter replacement (4-5 inch media) | $45 – $85 |
| Register/grille cleaning (add-on per unit) | $10 – $20 |
Three factors push Crownsville jobs toward the higher end: multiple HVAC zones common in large-lot custom homes, crawl space or attic access requiring additional setup, and heavy pollen buildup needing extended rotary brush passes. We give you one flat price per system, agreed in writing, before any work starts. No per-vent pricing, no add-ons at the door.
Neighborhoods We Serve in Crownsville
We schedule Crownsville routes to keep drive time down and arrival windows tight. Most appointments book within 3 – 5 business days, with dispatch coordinated from our Washington, DC office and crews traveling to Crownsville daily.
- Herald Harbor
- Bacon Ridge area (Generals Highway corridor)
- Hawkins Road custom home lots
- Crownsville historic district and surrounding farm properties
- Arden on the Severn (nearby, often routed with Crownsville calls)
Service Area – Cities Near Crownsville
Our crews work Crownsville as part of a broader Anne Arundel County route. We also serve Severna Park, MD to the east, Annapolis, MD to the southeast, Gambrills, MD to the north, and Crofton, MD to the northeast. Scheduling is coordinated from our Washington, DC office, with local technicians dispatched to each city.
Serving Crownsville, MD - Our Local Coverage Area
We’re based in the Crownsville 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 Crownsville
No permit is required for routine duct cleaning or dryer vent cleaning in Anne Arundel County. Duct sealing that involves modifying ductwork may need a mechanical permit if it alters the system’s design; we check this during our initial inspection and advise before work begins. Call (361) 326-5060 if you have questions about your specific project.
We typically schedule Crownsville appointments within 3 – 5 business days, with dispatch from our Washington, DC coordination office. Emergency dryer vent blockages or visible mold concerns get priority routing. Call (361) 326-5060 to check current availability.
Yes. Many Crownsville properties have separate HVAC systems in detached garages, barns converted to workshops, or pool houses. We price each system separately in writing, and we can clean or seal multiple systems on the same visit. Call (361) 326-5060 to schedule a walkthrough of your property.
Ready to schedule? Call Hollis Air Duct Cleaning at (361) 326-5060 for a free, written estimate. We’ll inspect your system, explain what your Crownsville home actually needs, and give you one flat price before any work starts. Every job is covered by our 365-Day Done Right Promise.
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 Crownsville Customers Say
"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."No sales pitch. Told me which parts of the system were fine and only cleaned what needed it."
- Ted L.