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 Ansonia
Air duct cleaning in Ansonia typically runs $350 – $650 for a full residential system, with most jobs completed in a single visit. We’re Hollis Air Duct Cleaning, and we’ve been working in the Naugatuck Valley long enough to know that Ansonia homes aren’t like the rest of Connecticut. Dispatch and scheduling for your job are coordinated from our Hartford office, but the crew that arrives at your door knows Ansonia’s streets, its hills, and its houses. We serve neighborhoods from the hilltop homes near Pulaski Highway down through the tight lots along High Street and Maple Street, where the original mill-worker housing still stands. Call (361) 326-5060 for a free estimate, or read on to understand what you’re actually paying for in this city.
Why Hollis Air Duct Cleaning Is Ansonia’s Preferred Air Duct Cleaning Company
We’ve built our reputation in Ansonia on showing up inside the window we quoted, pricing the job in writing before touching a single register, and leaving the site clean. That discipline comes from The Garrison Standard, which governs every independently owned Hollis location. Our technicians are background-checked and uniformed, and our phones are answered by a live person 24 hours a day, seven days a week. No voicemail loops. No callback queues.
Ansonia homeowners call us back because we treat their 1880 – 1930 mill-worker houses with the respect those structures demand. We don’t pretend a High Street fieldstone basement is the same as a 1990s ranch in Shelton. Our Air Duct Cleaning team carries equipment from Rotobrush and Nikro, and we stock filtration products from Aprilaire and Guardsman so we’re not waiting on parts while your system sits open. The 365-Day Done Right Promise backs every job in writing: if the work fails within a year, we return and make it right at no charge, including a free second visit.
Residential Air Duct Cleaning in Ansonia
Residential Air Duct Cleaning in Ansonia means dealing with ductwork that was retrofitted into spaces never designed for it. Most of the city’s housing stock dates to 1880 – 1930, wood-frame and brick mill-worker houses on narrow lots with fieldstone foundations. The original galvanized or transite duct runs were squeezed into tight chases, elbow-heavy and short, and they’ve been accumulating debris for decades. A typical full residential cleaning in Ansonia runs $350 – $650 depending on system size, accessibility, and what we find once the cameras go in.
Supply and Return Duct Cleaning
Supply ducts push conditioned air into your rooms; return ducts pull it back. In Ansonia’s older homes, these runs are often disconnected at the plenum or crushed behind foundation walls. We clean both sides of the loop, then camera-inspect to confirm the path is open and sealed.
Video Inspection Before Agitation
We camera every system first. In Ansonia, this step isn’t optional. We’ve found asbestos-wrapped transite ducts in attics on Maple Street and coal-dust residue packed solid in returns on High Street. Agitating without looking first can turn a routine clean into a much bigger problem.
Commercial Air Duct Cleaning in Ansonia
Commercial Air Duct Cleaning in Ansonia covers the small manufacturing spaces, multi-tenant offices, and retail buildings that line Main Street and the corridors toward Derby. These systems differ from residential work in scale and access, but they share one trait with Ansonia’s homes: age. Many commercial buildings here were converted from industrial use, with ductwork that predates modern codes. A typical commercial cleaning in Ansonia starts around $800 and runs to $2,500 for larger or multi-zone systems.
Multi-Zone System Cleaning
Commercial buildings often have separate zones for offices, production floors, and storage. We isolate each zone, clean under negative pressure, and verify airflow balance before closing up. No zone gets skipped because it’s hard to reach.
Post-Cleaning Verification
We document the work. After cleaning, we provide before-and-after photos of your ducts and a written summary of what was found, what was done, and any recommendations for sealing or repair. The price we quoted is the price on the invoice.
Trusted Brands We Service in Ansonia
We run professional-grade equipment because Ansonia’s ductwork demands it. Our rotary brush systems come from Rotobrush, our negative-air machines from Nikro, and our filtration and sealing products from Aprilaire, Abatement Technologies, and Guardsman. These aren’t hardware-store tools. A Rotobrush system flexes through the tight, elbow-heavy runs common in Ansonia’s hillside homes without damaging original galvanized ductwork. Nikro negative-air units maintain controlled suction in short basement chases where standard equipment would lose pressure. We stock parts and filters locally, so if your system needs a component replaced during the clean, we’re not ordering it from three states away. The right tool for the job, and the job done without delay.
Common Air Duct Cleaning Problems We See in Ansonia Homes
- Coal-dust residue in original returns. On High Street and Maple Street, we regularly find black, felt-like coal dust packed into return drops. It’s a legacy of Ansonia’s industrial past, and standard residential cleaning rarely addresses it. We source-remove it under HEPA filtration, then verify the run is clear with a camera.
- Asbestos-wrapped transite ducts in attics and basements. The 1880 – 1930 mill-worker housing stock often includes transite ducts with asbestos-containing insulation. Agitation without material identification is dangerous and illegal. We inspect first, document what we find, and advise on safe next steps if friable material is present.
- Crushed and disconnected branches behind fieldstone foundations. Original duct runs were retrofitted into tight spaces with little clearance. Elbows get crushed by settling, branches disconnect at joints, and airflow drops while the blower strains. Camera inspection finds what visual checks miss.
- Condensation-driven rust and mold in Naugatuck Valley basements. Ansonia’s humid summers and cold winters create moisture in poorly insulated metal ducts. Rust flakes break loose and circulate. Mold grows on organic debris. We target both with appropriate remediation, not just a surface vacuum.
Pricing for Air Duct Cleaning in Ansonia, CT
Here’s what honest pricing looks like for Ansonia’s market. A typical full residential system cleaning runs $350 – $650. Commercial work starts around $800 and scales with system size and access difficulty. Dryer vent cleaning, often booked alongside duct work, adds $120 – $200. Duct sealing with mastic and mesh, which we frequently recommend after finding crushed or leaking runs in Ansonia’s older homes, runs $200 – $500 depending on linear footage.
What moves the number? System size, number of registers, accessibility (crawl spaces and tight fieldstone basements take longer), and what the camera reveals. A clean with no surprises costs what we quoted. A system with disconnected branches, asbestos-wrapped transite, or packed coal dust may need additional work, and we’ll write that price down too before starting. One flat price per system, agreed before work begins. No per-vent pricing. No teaser coupon that balloons at the door. Call (361) 326-5060 for an exact quote on your home. Estimates are free.
We Also Serve Cities Near Ansonia
Our crews work throughout the lower Naugatuck Valley and the shoreline corridor. We regularly clean ducts in Ansonia, Derby, Shelton, Orange, and West Haven. Each city gets the same standard: written price, written guarantee, background-checked uniformed technicians, and the 365-Day Done Right Promise. The drive from Ansonia to Derby is short, but the housing stock changes, and our approach adjusts with it.
Serving Ansonia, CT - Our Local Coverage Area
We’re based in the Ansonia 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 Ansonia
It might. Homes built between 1880 and 1930 in Ansonia, including those on Maple Street and High Street, often contain transite ducts or asbestos-containing insulation wrap in attics and basements. We inspect with a camera before touching anything. If we find friable asbestos, we stop, document it, and advise on proper abatement. We do not agitate material that could become airborne. Call (361) 326-5060 and we’ll walk you through what to expect.
Ansonia sits in the Naugatuck Valley, where humid summers and cold winters create condensation inside poorly insulated metal ducts. That moisture breeds mold in warm months and oxidizes steel in cold months, producing rust flakes that break loose and circulate. Cleaning removes the debris; sealing and insulation recommendations address the moisture source. The fix is targeted, not cosmetic.
It’s compressed particulate from Ansonia’s industrial era, when coal was the primary fuel for heating and manufacturing. In 1910s mill-worker houses on High Street, this residue packs into return ducts like black felt. It’s not ordinary household dust. We remove it with HEPA-contained, source-removal methods under negative pressure, then verify clearance with a camera. Standard vacuuming won’t touch it.
We camera-inspect every system before cleaning. In Ansonia’s fieldstone basements, original galvanized runs were squeezed into chases with minimal clearance. Settling crushes elbows. Joints disconnect. You can’t see it from the register. The camera shows us what’s there, and we quote repair work in writing before we seal or reconnect anything.
Yes. We clean commercial systems in Ansonia’s small manufacturing, retail, and multi-tenant office spaces. Commercial work uses the same equipment, Rotobrush and Nikro, scaled to larger systems. Pricing starts around $800 and is always written before work begins, backed by the same 365-Day Done Right Promise. Call (361) 326-5060 to schedule a walk-through.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Ansonia and the Naugatuck Valley since 2004.




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