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 Baltimore, MD
Air duct cleaning in Baltimore typically runs $350 – $650 for a whole-home system, with most jobs completed in a single visit. What drives the price here isn’t square footage alone; it’s the city’s dense rowhouse construction, shared-wall duct systems, and original galvanized steel from the early 1900s that complicates access and cleanup. We’re Hollis Air Duct Cleaning, part of the Garrison Partners family, and our Baltimore crews handle these conditions daily. Call (361) 326-5060 for a free estimate.
Why Baltimore Homes Are Different
Baltimore’s housing stock is unlike anywhere else in the country. The city is dominated by historic rowhouses, many over 100 years old, with original galvanized steel ducts and plaster walls that trap dust and allergens. These narrow, attached homes often have ductwork running through unheated crawlspaces and shared walls, leading to leaks and pest intrusion.
The rowhouse corridors are notorious for shared-wall duct systems that leak between units. No other U.S. city has this density of 19th-century rowhouses with original galvanized ductwork, making Baltimore a unique market for duct cleaning that addresses both efficiency and health concerns. In neighborhoods like Hampden and Federal Hill, the original duct systems often have gaps at floor registers that suck in coal dust from old basements, a legacy of the city’s coal-heating past that makes thorough cleaning a necessity for indoor air quality.
Baltimore’s humid subtropical climate adds another layer. Hot, muggy summers cause ducts to sweat and harbor mold, while winter heating cycles push dust and allergens through the system. Frequent freeze-thaw cycles create condensation issues in poorly insulated ducts, especially in crawlspaces beneath these old homes.
Our Main Baltimore Services
Most Baltimore homeowners call us for one of three jobs. Each has its own page with full details.
Air Duct Cleaning in Baltimore
We clean the full supply and return system with rotary brush and negative-air methods, pulling debris from every register back to the main trunk. In Baltimore, we pay special attention to coal dust residue in older homes and mold-prone sections from summer humidity. Every job gets a written price before we start and is backed by our 365-Day Done Right Promise. Air Duct Cleaning in Baltimore
Dryer Vent Cleaning in Baltimore
Dryer vent blockages are a leading cause of house fires, and Baltimore’s tight rowhouse layouts often mean long, convoluted vent runs through shared walls. We clear the full run from dryer to termination, inspect for proper airflow, and flag any code issues. Background-checked, uniformed technicians; written price upfront. Dryer Vent Cleaning in Baltimore
Duct Sealing in Baltimore
Given the shared-wall systems and original galvanized steel in Baltimore rowhouses, duct sealing often matters as much as cleaning. We apply mastic sealant and metal-backed tape to close leaks at joints and register boots, stopping cross-contamination between units and improving system efficiency. Written guarantee, same 365-day coverage. Duct Sealing in Baltimore
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 Baltimore
We stock parts and filters from Honeywell, Aprilaire, and Abatement Technologies, and our cleaning equipment includes Nikro negative-air machines and Rotobrush rotary systems. Most filter replacements and component swaps are same-visit. See our brands for the full list.
Pricing for Air Duct Cleaning Company in Baltimore, MD
| Service | Typical range in Baltimore |
|---|---|
| Whole-home air duct cleaning (single system) | $350 – $650 |
| Whole-home air duct cleaning (dual HVAC system) | $550 – $950 |
| Dryer vent cleaning (standard run) | $120 – $200 |
| Dryer vent cleaning (long run or roof termination) | $180 – $280 |
| Duct sealing (whole system) | $800 – $1,500 |
| Duct sealing (partial, problem zones only) | $350 – $600 |
| Mold inhibitor treatment (after cleaning) | $150 – $300 |
| Register and boot replacement (per unit) | $75 – $150 |
| HVAC filter upgrade (AprilAire or Honeywell) | $45 – $120 |
| Return to clean (re-clean guarantee visit) | No charge under Promise |
Prices in Baltimore run toward the higher end when crawlspace access is limited, shared-wall ducts require extra sealing, or coal dust and debris buildup is severe. The price we write down before any work starts is the price you pay; it does not move at the door.
Neighborhoods We Serve in Baltimore
Our Baltimore office dispatches crews across the metro. Most appointments are scheduled within a few days, with routing optimized to keep drive times short.
- Federal Hill
- Hampden
- Canton
- Fells Point
- Mount Vernon
Service Area – Cities Near Baltimore
We cover the full Baltimore metro and surrounding communities. Crews regularly work in Catonsville, MD, Dundalk, MD, and Parkville, MD, plus Rosedale, WA for property managers with portfolios spanning the region.
Serving Baltimore, MD - Our Local Coverage Area
We’re based in the Baltimore 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 Baltimore
No permit is required for standard residential duct cleaning or dryer vent cleaning in Baltimore. Duct sealing that involves structural modification may need review in historic districts; we flag this during estimate and handle any paperwork if it applies. Call (361) 326-5060 to discuss your specific property.
Most Baltimore appointments are scheduled within 3 – 5 business days. We do not overbook; the window we give you is the window we arrive in. Phones are answered by a live person 24 hours a day if you need to reschedule.
Yes. Shared-wall duct systems are common in Baltimore rowhouses, and our crews are trained to identify cross-contamination points. We seal accessible leaks from your unit’s side and document any conditions that require building-wide attention. Call (361) 326-5060 for a free assessment.
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 Baltimore 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.