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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AfterFast, Reliable Air Duct Cleaning Across Glen Burnie
Air duct cleaning in Glen Burnie typically runs $350 – $650 for a full residential system, with post-flood or mold-contaminated work ranging $500 – $900 depending on scope. Most jobs are scheduled within 48 hours, and our Baltimore office dispatches crews directly to Glen Burnie neighborhoods from Pasadena to the B&A Trail corridor. Call (361) 326-5060 for a written estimate before any work starts.
We’ve worked in Glen Burnie homes long enough to know the difference between a routine cleaning and a duct system compromised by Marley Creek floodwater. Our Air Duct Cleaning team carries Rotobrush rotary systems and Nikro negative-air machines through split-levels off Aquahart Road, capes near Crain Highway, and ranchers along the Baltimore & Annapolis Trail. Roy Castellanos built Hollis on The Garrison Standard: written price, written guarantee, and a 365-Day Done Right Promise that means we come back at no charge if the work fails.
Why Hollis Air Duct Cleaning Is Glen Burnie’s Preferred Air Duct Cleaning Company
Our reputation in Glen Burnie was earned house by house, not bought with coupon mailers. Homeowners here talk to each other, and word spreads when a crew shows up uniformed, background-checked, and actually does what the written estimate promised.
We answer our phones live, 24 hours a day, 7 days a week. No callback queues, no “leave a message and we’ll get back to you Monday.” When a storm pushes water into your basement ducts at 9 p.m. on a Saturday, you reach a person who can get a crew scheduled.
Our technicians know Glen Burnie’s housing stock: the post-WWII capes with galvanized trunks in the crawlspace, the 1960s split-levels with flex runs through damp basements, the newer townhomes with PVC ductboard that mold colonizes differently than metal. That local knowledge changes how we scope the job and what equipment we bring.
Every Hollis location operates independently under The Garrison Standard, and our Baltimore office coordinates scheduling and dispatch for Air Duct Cleaning in Glen Burnie. The price we write down before work starts is the price you pay. No per-vent add-ons, no “we found another problem” surprises at the door.
Vent Cleaning in Glen Burnie
Vent Cleaning in Glen Burnie removes the buildup that accumulates in supply and return registers, boot connections, and the first few feet of duct branch. In this market, we typically see vent cleaning bundled into full system work rather than sold as a standalone service, with residential vent cleaning running $150 – $300 when performed separately and $75 – $150 as an add-on to complete duct cleaning. Glen Burnie’s humid summers mean vent covers often show the first visible mold spots, especially in bathrooms and basement utility rooms where condensation collects on the metal grille.
Supply Vent Cleaning
Supply vents push conditioned air into your rooms. When they’re clogged with dust and biological growth, airflow drops and your HVAC system works harder for the same result. We remove each register, clean the boot and visible duct length with rotary brushes, and treat the surrounding area with antimicrobial where moisture has stained the surrounding drywall or trim.
Return Vent Cleaning
Return vents pull air back to the handler, which means they’re drawing in everything floating at floor level: pet hair, pollen, and the fine silt that settles in Glen Burnie homes after basement flooding. A clean return vent improves system efficiency and reduces the load on your filter, but it’s only effective if the trunk line behind it is also clear.
Air Duct Repair in Glen Burnie
Air Duct Repair in Glen Burnie addresses the damage that repeated wet-dry cycles inflict on duct systems, particularly in homes near Marley Creek and other low-lying areas. Typical repair work runs $400 – $800 for section replacement, $200 – $450 for sealing and mastic work, and $150 – $350 for register and boot replacement. Full trunk replacement in a flooded basement can reach $1,200 – $2,500 depending on material and accessibility. We write the full scope and price before touching anything.
Flood-Damaged Section Replacement
When water wicks into flex duct liner, the material degrades and becomes a mold reservoir no cleaning can salvage. We cut out the compromised section, fabricate new insulated runs to match the original R-value, and seal all connections with mastic, not tape. The work is photographed for your records and, when needed, for your insurance adjuster.
Duct Sealing and Restoration
Hard pipe that survived flooding intact often still needs attention: joints loosen, sealant cracks, and connections to the air handler pull apart from humidity cycling. We pressure-test the system, identify leakage points, and seal them with water-resistant mastic designed for damp environments. A sealed system performs better and is less likely to draw mold spores from a still-damp basement into your living space.
Trusted Brands We Service in Glen Burnie
Hollis stocks parts and filtration products from Honeywell, Aprilaire, and Abatement Technologies for Glen Burnie jobs, which means most repairs don’t wait on a warehouse shipment. Honeywell media filters and electronic air cleaners integrate with the systems we see in local homes, Aprilaire whole-house humidifiers need seasonal maintenance in this climate, and Abatement Technologies HEPA equipment protects your home during the actual cleaning process. Our Nikro negative-air machines and Rotobrush rotary systems are on every truck, so the work starts when we arrive, not when equipment gets delivered.
Common Air Duct Cleaning Problems We See in Glen Burnie Homes
- Post-flood flex duct saturation. After heavy rains, basement ducts in low-lying areas near Marley Creek often flood and become breeding grounds for mold. Saturated flex runs can’t be cleaned; the water-resistant outer layer hides a soaked inner liner that will recontaminate your air within weeks.
- Surface-only mold treatment. Crews brush visible mold off registers without camera-inspecting the flex runs where water wicked into the liner. The next humid July, that hidden mold reactivates and the homeowner assumes cleaning “didn’t work.” We scope every post-flood job.
- Sanitizing while the space is still damp. Applying antimicrobial to ducts when the crawlspace or basement hasn’t been dried and the water source hasn’t been addressed guarantees biological growth returns. We verify moisture levels before treating anything.
- Missing documentation for insurers. No photo or video evidence of source removal or liner damage means a legitimate duct replacement claim gets denied as “maintenance.” We document everything: before, during, and after, with timestamps.
Pricing for Air Duct Cleaning in Glen Burnie, MD
A typical residential full-system cleaning in Glen Burnie runs $350 – $650 for a standard home with 10 – 20 vents, using rotary brush and negative-air methods. Post-flood or mold-remediation work ranges $500 – $900, and commercial duct cleaning starts around $800 – $1,500 depending on square footage and system complexity. What moves the price: accessibility of your ductwork (finished basement vs. exposed crawlspace), contamination level (routine dust vs. floodwater and mold), and whether video inspection reveals damage requiring repair or replacement.
We do not quote per-vent pricing. One flat price per system, agreed in writing before work starts. You’ll see before-and-after photos of your own ducts, not stock images. Estimates are free, and there’s no charge for us to look, measure, and write a scope you can compare. Call (361) 326-5060.
We Also Serve Cities Near Glen Burnie
Our crews work throughout the Baltimore-Annapolis corridor, including Glen Burnie neighbors in Pasadena, Severna Park, Severn, and Dundalk. The same written pricing, same equipment, same 365-Day Done Right Promise applies in every community we serve.
Serving Glen Burnie, MD - Our Local Coverage Area
We’re based in the Glen Burnie 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 Glen Burnie
It depends on what the camera inspection shows. Hard metal duct that got wet but didn’t sit in standing water can often be cleaned, dried, and treated with antimicrobial. Flex duct with a soaked inner liner, or any duct with visible mold growth extending more than a few feet from the water line, needs section replacement. We document the difference with dated video so your insurer can see why replacement is necessary. Call (361) 326-5060 and we’ll scope it at no charge.
Within 24 – 48 hours if possible. Mold colonizes wet duct liner in as little as 48 – 72 hours in Glen Burnie’s summer humidity, and once established, it spreads through the system every time the blower runs. Even if the basement looks dry on the surface, flex runs and low points in hard pipe can hold moisture. We check with moisture meters before declaring anything ready to clean or seal.
Sometimes, but only with proper documentation. Standard homeowner’s policies typically exclude flood damage unless you carry separate flood coverage through the NFIP or a private carrier. For covered water damage, insurers want evidence: dated photos, video inspection showing liner saturation or mold penetration, and a written scope distinguishing cleaning from replacement. We provide all of this as part of our standard process. We don’t guarantee coverage, but we do guarantee your documentation will support the claim you file.
NADCA Standard 2021 requires source removal: every vent, every trunk line, every return, accessed and mechanically agitated with negative-air containment so debris doesn’t redeposit in your home. In Glen Burnie, the standard isn’t enough by itself. The damp climate means we also verify moisture control, treat for biological growth with EPA-registered antimicrobials where indicated, and inspect for condensation points that will recontaminate clean ducts. A NADCA cleaning that ignores Glen Burnie’s humidity is a cleaning that won’t last.
Yes, and it matters more in Glen Burnie than most places. Dryer vents in humid climates already struggle to exhaust efficiently; add lint buildup and the moisture stays in the duct, accelerating corrosion and creating a fire hazard. We clean dryer vents with rotary brushes and inspect for proper termination and backdraft damper function. It’s a separate service from duct cleaning, but we can bundle it on the same visit. Call (361) 326-5060 for combined pricing.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Glen Burnie since 2004.