Whole-home duct cleaning
Dryer vent cleaning
Camera inspection
Sanitizing & deodorizingWhole-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 Merrick
Air duct cleaning in Merrick costs $389 to $689 for a typical single-family home, and the defining factor here is not square footage: it’s how much salt, sand, and humidity has worked its way into your duct runs. Merrick sits directly on Long Island’s South Shore, and homes from the 1950s through the 1970s still run original galvanized steel ductwork that corrodes faster than inland systems. We dispatch crews to Merrick every week, and we know the difference between a duct that needs a standard cleaning and one that needs source removal of compacted beach sand before anything else will work. Call (516) 559-4917 for a written quote before any work starts.

Why Hollis Air Duct Hempstead Is Merrick’s Preferred Air Duct Cleaning Company
Hollis Air Duct Hempstead is part of the Garrison Partners family, founded in 2004, and we run every Merrick job on The Garrison Standard: arrive inside the quoted window, price in writing before we touch a register, do the work by the book, and leave the site clean. Our techs are background-checked and uniformed, and you know who is walking into your home before they arrive. Roy Castellanos runs this location, and he holds his crews to the same code on every job: no shortcuts, no fog-and-go work, no price that moves at the door.
Merrick homeowners call us for a specific reason. Coastal air is hard on duct interiors, and we see the results of quick cleanings that missed the air handler or skipped the return side entirely. We carry professional-grade gear from Rotobrush, Nikro, and Honeywell, which is the same equipment commercial crews use, and our 365-Day Done Right Promise is in writing on every job. If the work fails within a year, we return and make it right at no charge, including a free second visit.
Styles & brands we work with




Ductwork Cleaning in Merrick
Ductwork cleaning in Merrick means more than running a vacuum through your supply registers. It means removing what the South Shore climate actually deposits: humidity-fed dust that hardens on duct walls, sand that blows in during coastal storms, and salt that oxidizes galvanized steel over years. A real ductwork cleaning starts with negative-air pressure on the system, followed by mechanical agitation of every supply and return run, then a camera inspection to verify the walls are clean. We finish by cleaning the air handler and blower motor, because in Merrick those components collect the same salt and grit and will redistribute debris right back into the runs if they are skipped.
Residential Duct Cleaning
Single-family colonials, ranches, and split-levels dominate Merrick’s housing stock, and most still have original duct layouts from when they were built. A typical residential cleaning in Merrick runs $389 to $689, depending on the number of supply and return runs and whether the air handler has ever been opened. We use a Rotobrush agitation whip under negative pressure with HEPA filtration, which pulls debris out of the system rather than pushing it around.
Supply and Return Duct Cleaning
Supply ducts push conditioned air into your rooms. Return ducts pull air back to the system. Both accumulate debris in Merrick, but returns often collect more sand and dust because they pull from hallways and floors. We clean both sides fully on every job, not just the supplies you can see. It is the only way a cleaning holds up for more than a season.
A full system cleaning in Merrick, covering supply ducts, return ducts, the air handler, blower motor, and a video inspection, costs $489 to $689 for a typical 3 to 4 bedroom home. Commercial duct cleaning on larger systems runs higher and is quoted case by case after an on-site inspection.
Air Duct Inspection in Merrick
Air duct inspection in Merrick is the right first step when you smell something stale in the air but cannot see the source, or when you have lived in the house for years and have never looked inside the ductwork. A camera inspection shows exactly what is sitting on the duct walls: sand, salt crust, mold, or just normal dust. It also shows whether your original 1950s to 1970s galvanized ducts have rusted through at the seams or developed pinhole leaks. We do not charge to inspect; the estimate is free, and if you approve the cleaning, the inspection is part of the job. A standalone video inspection runs $149 to $249.
Video Inspection Before You Commit
We run a small camera through your supply and return runs and record what we find. You see the same footage we see. If the ducts are clean and the smell is coming from somewhere else, we tell you that and do not sell you a cleaning you do not need. If the ducts are loaded with sand and surface rust, the video proves what needs to happen and what it should cost.

Post-Clean Verification
After the cleaning, we camera-inspect the same runs again so you can see the difference. This is how you know the work was actually done, not just fogged over. You get before and after images of your own ducts, not a stock photo of someone else’s system.
Trusted Brands We Service in Merrick
We clean and service ductwork connected to all major HVAC brands found in Merrick homes, including systems built around Honeywell filtration, Aprilaire media cabinets, and air handlers that have been retrofitted over the years. Our equipment roster includes Rotobrush rotary brush systems and Nikro negative-air machines, which generate the suction and agitation required for source removal on older ductwork. Because Merrick has so many 1950s to 1970s homes with original runs, we stock the common filtration replacements locally so we are not waiting on parts when your system needs a new media filter or a Honeywell electronic air cleaner cell cleaned during the job.
Common Air Duct Cleaning Problems We See in Merrick Homes
- Beach sand and salt crust inside duct walls. Homes within a mile of the water, especially after nor’easters, accumulate sand that blows through soffit vents and into return ducts. The salt binds with humidity and forms a crust that a vacuum alone cannot pull off.
- Surface rust flaking at duct seams. Salt-laden air accelerates oxidation on galvanized steel. We see seams flaking rust into the airstream on original 1960s and 1970s ducts, and the rust particles then circulate through every room.
- Musty odor that returns every humid August. When moisture condenses inside ducts during Long Island’s humid summers, mold grows on dust and debris that was never removed. Cleaning the runs but skipping the air handler and blower motor means the smell comes back within weeks.
- Undersized ductwork loaded at corners and elbows. Many original Merrick systems were designed for smaller homes and later added onto, leaving long runs with tight elbows where debris compacts. Low-velocity vacuum-only methods leave those corners packed, which is why we use mechanical agitation with negative pressure on every job.
See the difference
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AfterPricing for Air Duct Cleaning in Merrick, NY
A standard whole-home air duct cleaning in Merrick runs $389 to $689 for most single-family homes up to about 2,500 square feet. Ranch and split-level homes on the south side of Merrick Road with fewer runs typically land at the lower end. Larger colonials off Merrick Avenue or in the North Merrick area with longer runs, multiple returns, and a finished basement with flex duct often run to the higher end. Homes within a mile of the water that need heavy sand and salt source removal may add $100 to $200 for the extra time and filtration. You get one written price per system before we start, and that price does not move at the door. Call (516) 559-4917 for a free estimate, and we will inspect and quote in writing.
We Also Serve Cities Near Merrick
Our crews live and work across the South Shore, and we schedule Air Duct Cleaning jobs in Bellmore, Wantagh, Baldwin, and East Meadow every week. If you are just outside Merrick or splitting time between homes, ask about scheduling when you call. We group nearby jobs to keep drive time down, which keeps your price where it should be. See our Air Duct Cleaning in Merrick coverage for details on neighborhoods and response times.
Serving Merrick, NY - Our Local Coverage Area
We’re based in the Merrick 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 Merrick
Merrick homes need cleaning every 2 to 3 years on average, compared to 3 to 5 years inland, because the South Shore’s salt-laden air and high humidity accelerate debris accumulation and corrosion inside duct runs. Moisture condenses inside ducts during humid summers, and that moisture turns dust into a hardened layer that builds faster than in drier inland towns. If your home is within a mile of the water, check your ducts at the two-year mark. Call (516) 559-4917 and we will camera-inspect for free before any cleaning is scheduled.
No. Fogging sprays a mist onto duct surfaces, but it cannot penetrate compacted sand, salt crust, or established mold colonies sitting on the walls. In Merrick, where humidity and coastal moisture create the exact conditions for mold growth, source removal must come first: mechanical agitation under negative pressure to pull the debris out, then treatment. Fogging alone leaves the food source for mold in place, and the problem returns. We do source removal first, then camera-inspect so you can see the walls are clean before any antimicrobial treatment is applied.
Sand does not need an open register to enter your system. It blows into soffit and gable vents, works through older window and door seals, and gets pulled into return ducts through gaps at the filter rack and plenum connections. Nor’easters push fine sand and salt spray through every seam in a coastal home’s envelope, and once inside the return side, the blower motor distributes it through the entire system. Closed registers do nothing to stop it. This is why we inspect return runs and the air handler on every Merrick job, not just the visible supply registers.
Yes. Salt accelerates oxidation on galvanized steel, and Merrick’s humidity keeps the salt active against the metal. We see surface rust flaking at seams and pinholes forming in original 1950s to 1970s ductwork on a regular basis, especially in homes between Merrick Road and the water. Rust particles then circulate through the air you breathe. A cleaning removes the loose rust and debris, and a camera inspection shows whether the duct walls themselves are compromised and need sealing or replacement.
Look for three signs: dust accumulating on supply register grilles within a week of wiping them, a fine layer of gritty material on furniture near vents, and a musty or stale smell when the blower first kicks on. That smell is often the first sign of mold, and by the time you detect it, the duct walls already carry a significant bioload. On a split-level off Merrick Avenue, our tech pulled the registers and found a quarter-inch of compacted sand and a white salt crust on the galvanized supply ducts, with surface rust already flaking at the seams. We ran a Rotobrush agitation whip under negative pressure with HEPA filtration, then camera-inspected every supply and return run before treating the air handler and blower motor. The client later told us the musty smell that returned every humid August was gone for good. If you suspect your ducts are at that point, call (516) 559-4917 for a free camera inspection.
Get a Free Air Duct Inspection in Merrick
We know Merrick’s ductwork, and we know what the South Shore climate does to it. The Garrison Standard means you get a written price before we start, background-checked uniformed techs, professional Rotobrush and Nikro equipment, and a 365-Day Done Right Promise in writing. If the work fails within one year, we return at no charge. Phones are answered by a live person 24/7, and scheduling is coordinated from our New York City office with local crews serving Merrick directly. Call (516) 559-4917 today for a free inspection and a written quote. Written by Roy Castellanos, Owner at Hollis Air Duct Hempstead, serving Merrick and the surrounding South Shore.