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 Lake Shore
Air duct cleaning in Lake Shore, MD typically runs $450 – $850 for a full residential system and $1,200 – $2,800 for commercial properties, with most Lake Shore homeowners scheduling during spring after pollen season or fall before heating demand peaks. Our crews serve Lake Shore from our Baltimore office, and we know the difference between a 1960s waterfront rancher off Riviera Drive with original sheet metal and a 2000s colonial on an inland wooded lot with a multi-zone heat pump system. That local knowledge changes what we look for, what tools we bring, and what the job costs to do right. Call (361) 326-5060 for a free written estimate.
Why Hollis Air Duct Cleaning Is Lake Shore’s Preferred Air Duct Cleaning Company
We’ve been in business since 2004 as part of the Garrison Partners family, and our Air Duct Cleaning team has worked enough Lake Shore homes to know the local housing stock by era. Roy Castellanos leads our operation with a simple standard: written price before work starts, background-checked uniformed technicians, and a 365-Day Done Right Promise backed in writing on every job.
Our Baltimore dispatch coordinates scheduling for Lake Shore, and phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops. No callback queues.
When we price a job in Lake Shore, the number is the number. We don’t quote a teaser rate over the phone and rewrite the invoice at the door. The Garrison Standard requires arriving inside the quoted window, pricing in writing, completing the job by the book, and leaving the site clean. That’s the discipline we bring to every Lake Shore address.
Air Duct Inspection in Lake Shore
Air Duct Inspection in Lake Shore starts with knowing which era of home we’re walking into, because the failure modes are completely different. A typical inspection runs $150 – $275 and includes video scoping of the main trunk, register flow testing, and a written report with photos. For waterfront ranchers near the Magothy or Patapsco, we’re checking crawlspace flex connections for tide-line staining and flood damage. For inland colonials, we’re measuring static pressure across multi-zone systems and identifying low-velocity branches where dust and biological growth settle.
Video Inspection and Flow Mapping
We feed a camera through the main trunk and branch lines, recording what we find so you see it too. Flow mapping at each register tells us whether the system is delivering designed CFM or choking on blockages, disconnected runs, or crushed flex.
Written Report with Repair Recommendations
Every inspection ends with a written report: photos, pressure readings, and a prioritized list of what needs cleaning, what needs sealing, and what needs repair. The price for any recommended work is written down before we schedule it.
Residential Air Duct Cleaning in Lake Shore
Residential Air Duct Cleaning in Lake Shore requires two different equipment setups depending on your home’s era and location. A typical full-system residential clean runs $450 – $850 for a single-zone system and $750 – $1,400 for complex multi-zone layouts. We use Rotobrush rotary brush systems for light-to-moderate buildup in accessible ductwork, and Nikro negative-air machines with HEPA filtration for heavy contamination or post-flood recovery jobs.
Waterfront Rancher Protocol
Original 1950s – 70s sheet metal ducts sized for lower-CFM furnaces often leak at seams when paired with modern heat pumps. We agitate the main trunk, seal accessible seams with mastic, and check flex connections under the crawlspace for storm damage.
Inland Colonial Multi-Zone Clean
Oversized trunk lines in 1990s – 2000s colonials never reach proper velocity, so dust settles in low-airflow branches. We balance the cleaning across zones, verify flow at each register after agitation, and flag any branches that need duct modification beyond cleaning scope.
Trusted Brands We Service in Lake Shore
Our equipment roster includes Rotobrush rotary brush systems and Nikro negative-air machines for the mechanical work, plus filtration products from Honeywell, Aprilaire, and Abatement Technologies for the air quality side. We stock common fittings and flex duct sizes for Lake Shore’s predominant housing types, so when our inspection finds a disconnected run or crushed boot, we can often repair it same visit without a parts order that pushes your job to next week. For homeowners upgrading filtration after a clean, we size Aprilaire and Honeywell media cabinets to the existing return plenum and explain what each MERV rating actually does in Lake Shore’s humid climate.
Common Air Duct Cleaning Problems We See in Lake Shore Homes
- Flood-soaked crawlspace ductwork after coastal storms. After a named storm or extreme high tide, water wicks into flex duct insulation and connections under waterfront ranchers. We check for tide-line staining on duct wrap, and if we find it, cleaning alone won’t fix it – the saturated insulation needs replacement and the connections need resealing.
- Disconnected flex runs pulling humid bay air into supply trunks. We pulled up to a 1968 brick rancher off Riviera Drive where the homeowner complained of a musty smell every time the heat pump cycled. Our camera inspection found a disconnected flex run under the crawlspace that had been blowing humid bay air into the supply trunk for years – you could see tide-line staining on the duct wrap. After reconnecting the run, sealing the boot to the register, and running agitation tools through the main trunk under negative pressure with HEPA filtration, the static pressure at the air handler dropped and the musty odor was gone.
- Oversized multi-zone trunks with chronic low velocity. Inland 1990s – 2000s colonials with complex heat pump systems often have trunk lines that never move air fast enough to keep dust suspended. The result is layered buildup in branch lines that standard filter changes never touch.
- Undersized returns creating negative pressure and infiltration. Original sheet metal systems sized for old furnaces can’t handle modern heat pump airflow demands. The return side pulls negative pressure, sucking unconditioned attic or crawlspace air into leaks that a standard clean misses entirely.
Pricing for Air Duct Cleaning in Lake Shore, MD
Most Lake Shore homeowners pay between $450 and $850 for a complete residential duct cleaning, with multi-zone systems or post-flood recovery jobs running $750 – $1,400. Commercial properties in Lake Shore typically range from $1,200 – $2,800 depending on system complexity and square footage. What moves the number: number of zones and registers, accessibility of crawlspace or attic runs, whether we find disconnected or flood-damaged ductwork that needs repair before cleaning, and contamination severity. We give one flat price per system, agreed in writing before any work starts. No per-vent add-ons. No invoice inflation at the door. Call (361) 326-5060 for a free written estimate.
We Also Serve Cities Near Lake Shore
Our crews work throughout the Baltimore metro area, including Lake Shore, Baltimore, Columbia, Ellicott City, and Glen Burnie. Dispatch and scheduling are coordinated from our Baltimore office, with local crews serving each area.
Serving Lake Shore, MD - Our Local Coverage Area
We’re based in the Lake Shore 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 Lake Shore
The musty smell usually comes from humid bay air entering through leaks in crawlspace ductwork, not from dirty ducts themselves. In Lake Shore’s waterfront ranchers, disconnected flex runs or flood-saturated insulation under the home pull Magothy and Patapsco humidity directly into the supply trunk. Standard cleaning without sealing those leaks just leaves the pathway open. We find and fix the disconnection, replace water-damaged insulation, and seal the boot connections. Call (361) 326-5060 for an inspection that targets the real source.
1960s ranchers near the water have original sheet metal ducts sized for low-CFM furnaces, with crawlspace flex connections vulnerable to storm flooding – our protocol checks for tide-line staining and seam leaks first. 2000s inland colonials have oversized multi-zone heat pump systems where low airflow velocity causes dust to settle in branch lines, so we focus on zone-by-zone flow verification and flag any branches that need duct modification. The equipment and inspection checklist change based on which Lake Shore era we’re working in.
Yes, our cleaning protocols follow NADCA guidelines for source removal: agitation of interior duct surfaces combined with negative-air collection so debris is extracted rather than redistributed. We document before-and-after conditions with photos for Lake Shore homeowners. Call (361) 326-5060 to schedule a NADCA-compliant cleaning with written pricing.
Most Lake Shore homes do best with MERV 11 – 13 pleated media, which captures pollen, mold spores, and fine dust without restricting airflow enough to freeze a heat pump coil in humid conditions. Higher MERV ratings can choke undersized returns common in older Lake Shore ranchers. We size filtration to your specific system’s static pressure capability after cleaning and sealing.
If storm surge reached your crawlspace or you smell mustiness when the system cycles, schedule an inspection immediately – don’t wait for a routine cleaning interval. For homes without flood exposure, every 3 – 5 years is typical for Lake Shore’s humid climate, though homes with pets, recent renovations, or chronic allergy issues may need more frequent service. After any named storm with coastal flooding, check crawlspace ductwork for tide-line staining before running the system. Call (361) 326-5060 for a post-storm inspection.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Lake Shore since 2004.




Before
After
Before
After
Before
After