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 Overlea, MD
Air duct cleaning in Overlea, MD typically costs $350 – $650 for a whole-home system and is scheduled by appointment with a written price locked in before work begins. We’re Hollis Air Duct Cleaning, part of the Garrison Partners family, and we serve Overlea’s older Beltway corridor homes where decades of accumulated debris in retrofitted ductwork is the real problem, not new construction dust. Call us at (361) 326-5060 for a free estimate.
Overlea sits just north of Baltimore City in Baltimore County’s unincorporated Beltway corridor, where mid-century bungalows and capes dominate. Many of these homes had forced-air systems added later or expanded piecemeal, which means short, irregular trunk-and-branch runs, accessible basement trunks, and flexible duct offshoots in tight joist bays. Our crews clean these systems with Rotobrush rotary brush systems and Nikro negative-air machines, and every job gets a written price upfront plus our 365-Day Done Right Promise.
Why Overlea Homes Are Different
Overlea’s housing stock is mostly 1920s – 1960s bungalows, capes, and two-story colonials with full or partial basements. The ductwork was rarely original to the house. Many systems were retrofitted over gravity heat or expanded after multiple HVAC replacements, especially in neighborhoods like Fullerton and Kenwood. That history matters because it creates short, zoned runs with irregular connections, not the long, straight trunk lines you’d find in newer construction.
Our humid Mid-Atlantic summers and cold winters push HVAC systems hard in both directions. Dust, pollen from the mature tree canopy, and Beltway particulate loads all filter into return ducts. Condensation-related buildup is common. Technicians working Overlea’s older capes frequently find return ducts sized for original gravity or early forced-air systems, now undersized for modern blowers. Cleaning often uncovers crushed or disconnected flex runs in basement ceiling cavities that explain why the first floor never heats or cools evenly.
The Garrison Code governs how we handle these finds: document it, show the homeowner, price any repair in writing, and never proceed without a signature. No surprises at the door.
Our Main Overlea Services
Overlea homeowners call us most often for these three jobs, each with its own dedicated page and local pricing.
Air Duct Cleaning in Overlea
We clean the full supply and return system with a Rotobrush rotary brush system and Nikro negative-air machine, pulling debris out rather than pushing it deeper. In Overlea, this means navigating short trunk-and-branch runs, basement-accessible mains, and flexible duct offshoots in tight joist bays. We check for crushed flex and disconnected returns while we’re in the ceiling cavities, since these are common in retrofitted capes and bungalows. Every job gets a written price before we start and is covered by our 365-Day Done Right Promise. Air Duct Cleaning in Overlea
Dryer Vent Cleaning in Overlea
Dryer vent cleaning in Overlea addresses lint buildup in runs that often span from basement or first-floor laundry rooms through framed walls to exterior terminations. Older homes here may have original metal ducting, foil transitions, or retrofitted flexible lines, each with different failure points. We inspect the full run, clean to the termination, and verify airflow with a meter. If we find a crushed or improperly sloped line, we quote replacement in writing before touching it. Dryer Vent Cleaning in Overlea
Duct Sealing in Overlea
Duct sealing in Overlea targets the leaks and gaps common in retrofitted systems, especially at trunk-to-branch connections and where flex meets rigid duct. We use mastic and mechanical fasteners, not tape that degrades, and we pressure-test after sealing to verify results. This is often the fix for the uneven heating and cooling our technicians find in Fullerton and Kenwood homes with undersized returns. The price is written before work starts, and the seal is guaranteed for 365 days. Duct Sealing in Overlea
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 Overlea
We stock parts and filtration products from Honeywell, Aprilaire, and Guardsman, and we clean systems connected to all major HVAC brands. Most filter replacements and basic repairs are completed same visit. For equipment specifics, see our brands.
Pricing for Air Duct Cleaning Company in Overlea, MD
| Service | Typical range in Overlea |
|---|---|
| Whole-home air duct cleaning (single system) | $350 – $650 |
| Whole-home air duct cleaning (two systems) | $550 – $950 |
| Dryer vent cleaning (standard run) | $120 – $200 |
| Dryer vent cleaning (long run or roof termination) | $180 – $280 |
| Duct sealing (partial system, spot repair) | $250 – $450 |
| Duct sealing (whole-home, typical cape/bungalow) | $450 – $850 |
| Return duct repair/replacement (crushed flex) | $200 – $400 |
| HVAC filter upgrade (Honeywell/Aprilaire media) | $80 – $150 installed |
Prices in Overlea push toward the higher end when we find multiple crushed flex runs, heavy debris from decades without cleaning, or access limited by finished basements. We price every job in writing before work starts, and that number does not move at the door. One flat price per system, no per-vent add-ons, no bait-and-switch.
Neighborhoods We Serve in Overlea
We schedule Overlea appointments with arrival windows that respect your time, not all-day waits. Crews dispatch from our Baltimore office and typically arrive within the quoted window for any of these neighborhoods:
- Fullerton
- Kenwood
- Overlea Village
- Bellefonte
- Ridgeleigh
Service Area – Cities Near Overlea
Our crews cover the full Baltimore County and surrounding metro area. We regularly schedule jobs in Baltimore, OH, Columbia, MD, Ellicott City, MD, and Glen Burnie, MD, with routing coordinated from our Baltimore office to keep drive times predictable and arrival windows reliable.
Serving Overlea, MD - Our Local Coverage Area
We’re based in the Overlea 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 Overlea
No permit is required for standard duct cleaning or dryer vent cleaning in unincorporated Baltimore County, including Overlea. Duct sealing and minor repairs also fall below the permit threshold unless you’re modifying the HVAC system’s capacity or routing. If we find work that triggers a permit, we flag it in writing before proceeding. Call (361) 326-5060 if you have questions about your specific project.
We typically book Overlea appointments within 3 – 5 business days, with dispatch coordinated from our Baltimore office. Phones are answered by a live person 24 hours a day, 7 days a week, so you can schedule or reschedule without voicemail loops. Call (361) 326-5060 to check current availability.
Yes. We serve all of Overlea’s unincorporated Baltimore County area, including streets and developments not named above. If you’re near the Beltway, north of Baltimore City, and have a forced-air system in a mid-century home, you’re in our service area. Call (361) 326-5060 to confirm and book a free estimate.
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 Overlea 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.