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 Andover
Air duct cleaning in Andover, MA typically runs $350 – $650 for a full residential system and is scheduled within a few days, not weeks. Hollis Air Duct Cleaning has been serving Essex County since 2004, and our crews know the difference between a 1720s center-chimney Colonial on Central Street and a 1990s Bancroft subdivision with flex-duct in the attic. Dispatch and scheduling are coordinated from our Boston office, but the technicians who arrive at your Andover door live and work in the area. We carry Rotobrush rotary systems and Nikro negative-air machines, and every job starts with a written price that does not move once work begins. Call (361) 326-5060 for a free estimate.
Why Hollis Air Duct Cleaning Is Andover’s Preferred Air Duct Cleaning Company
We’ve built our reputation in Andover one appointment window at a time. Our technicians arrive inside the quoted window, in uniform, with background checks completed and verifiable. The Garrison Standard requires it, and The Garrison Code governs how we behave on your property: price in writing before touching equipment, complete the job by the book, leave the site clean.
Andover homeowners have told us the same story for years: they called another company with a low coupon price, watched it balloon at the door, and never saw the crew again when something went wrong. Hollis does not work that way. Our Air Duct Cleaning team provides one flat price per system, agreed before work starts, backed by the 365-Day Done Right Promise. If the work fails within a year, we return and make it right at no charge, including a free second visit.
Phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops, no callback queues, no waiting until Monday for a scheduling question.
Air Duct Repair in Andover
Air Duct Repair in Andover often means fixing what decades of heating seasons and spring pollen bursts have damaged: separated flex-duct in unheated attics, corroded galvanized steel in 1960s split-levels off Lowell Street, or crushed return lines from the Bancroft subdivisions where storage boxes have been stacked on ductwork since the Clinton administration. A typical repair in Andover runs $200 – $500 for localized fixes, $600 – $1,200 for extensive reconfiguration in older homes with chimney-chase ductwork.
Chimney-Chase Ductwork Repairs
In Andover’s oldest center-chimney Colonials, the original central chimney flue was often repurposed as a chase for HVAC ducts during 20th-century retrofits. These tight, awkward runs leave a labyrinth where standard rotary brushes cannot navigate. We use camera inspection and specialized agitation tools to reach debris that rotary systems miss, then reseal transitions at the air handler to restore proper static pressure.
Attic Flex-Duct Sealing and Replacement
The 1980s-90s Colonial Revivals in the Bancroft and High Plain Road subdivisions use standard flex-duct routed through unconditioned attics. Andover’s cold winters and humid summers degrade these runs faster than conditioned-space ductwork. We replace collapsed or torn sections with properly supported flex-duct, seal all connections with mastic, and verify insulation integrity so the system stops pulling in fresh attic dust.
Ductwork Cleaning in Andover
Ductwork Cleaning in Andover requires different equipment and access plans depending on whether we’re working in a Federal-era home near Central and School streets or a dense apartment stack off Lowell Street. A typical full-system cleaning in Andover runs $350 – $650 for residential, $800 – $1,500 for commercial or multi-unit buildings with shared systems. The price is written before we start, and it covers the entire system: supply ducts, return ducts, registers, grilles, and the air handler cabinet.
Rotary Brush and Negative-Air Methods
We match the method to the duct material. Our Rotobrush rotary brush system scrubs galvanized steel and hard ductboard common in Andover’s mid-century homes. For delicate original ductwork in historic properties, we use Nikro negative-air machines that pull debris through the system without aggressive mechanical contact. Both methods include HEPA filtration so nothing recirculates into your living space.
Video Inspection and Source Removal
Every full-system cleaning includes video inspection before and after. In Andover’s older housing stock, we document the condition of chimney-chase returns and unlined transitions so you see what we see. Source removal means the debris leaves your home, not just moves around in it. We verify with post-cleaning camera runs through the dirtiest access points.
Trusted Brands We Service in Andover
Hollis technicians are trained on equipment from Rotobrush, Nikro, and Abatement Technologies, and we stock filtration products from Honeywell, Aprilaire, and Guardsman for Andover customers who need replacement media after cleaning. The Honeywell media air cleaners common in 1990s Andover installations often need new filters and cabinet seals to maintain rated MERV efficiency. We carry those parts on the van. For homes with Aprilaire whole-house humidifiers integrated into the duct system, we clean the distribution tray and replace the water panel as part of a full-system service. No waiting for parts to ship, no second appointment to finish the job.
Common Air Duct Cleaning Problems We See in Andover Homes
- Chimney-base return ducts in gravity-furnace conversions. In the 1920s-era homes on Central Street, the return duct is literally the old chimney base. A standard rotary brush hits the 90-degree turn and stops, leaving decades of debris untouched. We use camera-guided agitation tools and negative-air extraction to clear what brushes cannot reach.
- Leaf litter pulled in from Birds Hill and Shawsheen Heights tree canopy. Andover’s dense oak, pine, and maple cover produces organic debris that finds every gap in exterior ductwork. Spring pollen bursts send fine yellow dust through open windows and into return vents, coating the system by June.
- Attic flex-duct with failed insulation in Bancroft and High Plain Road subdivisions. Unconditioned attics in these 1990s homes see temperature swings from 0°F to 130°F annually. The flex-duct insulation compresses or separates, and the system starts pulling in attic dust right after a standard cleaning if seals aren’t checked.
- Shared dryer vent stacks in Andover apartment and condo buildings. Floor-to-floor lint pathways create fire hazards and restrict airflow. Cleaning only the supply and return ducts without addressing the shared dryer vent leaves the building’s most dangerous accumulation untouched.
Pricing for Air Duct Cleaning in Andover, MA
A typical residential full-system cleaning in Andover runs $350 – $650, depending on system size, access difficulty, and contamination level. Commercial or multi-unit buildings with shared systems range $800 – $1,500. Air duct repair in Andover typically costs $200 – $500 for localized fixes, $600 – $1,200 for extensive reconfiguration in historic homes with chimney-chase ductwork. Dryer vent cleaning as an add-on runs $125 – $225 per unit, $300 – $500 for shared stack cleaning in apartment buildings.
What moves the price: square footage of the home, number of supply and return vents, whether ductwork runs through accessible basements or tight chimney chases, and whether video inspection reveals damage requiring repair before cleaning can be effective. We do not quote per-vent prices. One flat price per system, agreed in writing before work starts. Call (361) 326-5060 for an exact quote. Estimates are free.
We Also Serve Cities Near Andover
Our crews work throughout Essex and Middlesex counties, including Air Duct Cleaning in Andover and neighboring Lawrence, Wilmington, Lowell, and Reading. The same written pricing, same 365-Day Done Right Promise, same live-answer scheduling applies in every town we serve.
Serving Andover, MA - Our Local Coverage Area
We’re based in the Andover 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 Andover
Yes, we can isolate and clean individual unit ductwork in Andover apartment and condo buildings without shutting down shared HVAC plants. We seal registers in adjacent units, establish containment at the air handler, and use portable negative-air machines so your neighbors’ systems keep running. Call (361) 326-5060 to schedule an inspection of your building’s access points.
Federal-era homes have original plaster walls, unlined chimneys, and ductwork retrofitted through spaces never designed for it, often requiring camera navigation and specialized agitation tools. Bancroft subdivision Colonials use standard flex-duct in unconditioned attics, where the critical issue is seal and insulation integrity rather than access difficulty. The cleaning sequence and equipment change significantly between the two. Call (361) 326-5060 and we’ll specify which approach your home needs.
Andover’s dense oak, pine, and maple canopy produces leaf litter and pollen that enter ductwork through gaps in exterior connections and open windows, especially in the Birds Hill and Shawsheen Heights areas. Most Andover homes benefit from cleaning every 3 – 5 years, but properties under heavy canopy cover with older duct seals may need service every 2 – 3 years. Call (361) 326-5060 for a video inspection to assess your specific conditions.
Shared stack dryer vent cleaning requires accessing the vent at multiple floors, using rotary brushes and high-velocity air tools to dislodge lint accumulation, and verifying airflow at the roof termination. We coordinate with building management for roof access and schedule during low-usage hours. The work typically runs $300 – $500 per stack depending on height and access difficulty. Call (361) 326-5060 to arrange a building inspection.
Yes, Hollis follows NADCA ACR standards for source removal on every job, including decades-old 5-ton systems common in Andover’s larger 1990s homes. This means mechanical agitation of all duct surfaces, HEPA-filtered negative-air collection, and post-cleaning verification. For older systems, we also inspect the air handler cabinet, evaporator coil access, and filter housing for integrity issues that standard cleaning cannot address. Call (361) 326-5060 to schedule service with written pricing.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Andover and the surrounding communities since 2004.