Fast, Reliable Air Quality & Sanitizing Across Hudson
Air quality and sanitizing service in Hudson, MA typically runs $280-$650 for mold treatment and $340-$780 for UV light installation, with most jobs completed in a single visit. We answer calls from Hudson homeowners around the clock, and our technicians are usually on-site in Hudson within the same day or next morning.
We’ve been driving to Hudson since 1984, and we know the difference between a postwar ranch out near the Stow line and a triple-decker on lower Washington Street with ductwork that hasn’t been opened since the Eisenhower administration. Our Air Quality & Sanitizing team treats every house according to what its system actually needs, not what a generic checklist says. Call (844) 685-6342 for upfront pricing and a free estimate.
Why Bellows Air Duct & Vent Co. Is Hudson’s Preferred Air Quality & Sanitizing Company
Hudson homeowners call us back because we show them the inside of their ducts before we quote a price. Every job starts and ends with a camera inspection. You’ll see exactly what we see - black mold in a return plenum, bacterial film on a trunk line, or just forty years of accumulated dust in a 1950s retrofit.
Our 90-Day Done Right Promise applies to every Hudson job in writing. If the work isn’t right, we return at no charge. No paperwork to file, no argument. We’ve operated this way for over 42 years, and it’s why customers in Hudson’s 01749 ZIP code and the surrounding Worcester County towns recommend us to neighbors.
A live person answers our phones 24 hours a day. Not a voicemail tree, not an app. When you’re dealing with a musty smell that won’t quit or a family member whose allergies spike every time the furnace cycles, you want to talk to someone who can dispatch a technician - not leave a message and hope.
Our technicians are background-checked and uniformed, and they carry professional-grade equipment from Rotobrush, Abatement Technologies, and Aprilaire. We don’t send day laborers with shop-vacs. We send people who understand how Hudson’s mill-era housing stock differs from the newer construction in Stow or Sudbury, and who know how to access ducts that were never designed for modern cleaning equipment.
Our Air Quality & Sanitizing Services in Hudson
Mold Treatment
In Hudson’s mill-era homes near the Assabet River floodplain, return-air plenums frequently harbor mold from ground-level humidity - a condition rare in drier, higher-elevation neighboring towns like Berlin or Stow. We sanitized a return plenum in a Victorian triple-decker on lower Washington Street, where decades of river-adjacent moisture had fostered black mold inside the original sheet-metal trunk. After HEPA-vacuuming and applying Abatement Technologies’ EPA-registered sanitizer, we installed a UV light to suppress regrowth.
Typical mold treatment in Hudson runs $280-$650 depending on contamination extent and duct accessibility. Homes with original sheet-metal trunks in tight crawlspaces take longer to treat properly, but we quote the full price before starting. No bait-and-switch, no price changes at the door.

Bacteria Sanitizing
Hudson’s forced-air systems that were retrofitted in the 1950s and 60s often have duct tape-sealed connections that have long since failed. These gaps pull in untreated air from basements and wall cavities where bacteria can colonize. Our bacterial sanitizing service treats the entire duct network with EPA-registered products that target the biofilm and microbial buildup we commonly find in these older systems.
A full bacterial sanitizing treatment in Hudson typically costs $220-$480. We recommend it for homes where occupants experience frequent respiratory irritation, or where ducts have never been professionally cleaned.

Odor Removal
The layered decades of debris in Hudson’s older retrofit ductwork don’t just reduce airflow - they produce persistent musty odors that circulate every time the system runs. Our odor removal service combines mechanical agitation, HEPA extraction, and targeted sanitizing to address the source, not mask it with fragrances.
Odor removal as a standalone service in Hudson runs $180-$420, though it’s most effective when paired with full duct cleaning. We evaluate your system with our camera inspection and recommend the right scope of work.

UV Light Installation
UV light installation is particularly valuable in Hudson’s river-adjacent homes where mold reoccurs within months unless ongoing microbial control is established. We install professional-grade UV lamps in the plenum or near the evaporator coil, where they continuously suppress mold, bacteria, and viral particles.
UV light installation in Hudson typically costs $340-$780 depending on system size and whether we need to modify access panels on older equipment. The lamps require annual bulb replacement, which we can include in a maintenance plan. For homes with chronic moisture issues, this is often the most cost-effective long-term solution.

Air Purifier Installation
Whole-home air purifiers integrate with your existing HVAC system to capture particulates that bypass standard filtration. In Hudson’s older homes with undersized trunks and sharp bends, where airflow is already compromised, a properly specified purifier reduces the load on your system while improving air quality.
Air purifier installation in Hudson runs $480-$1,200 for most residential systems, including the unit and professional integration with your ductwork.

Allergen Reduction
Hudson’s location in Worcester County’s interior means sustained heating seasons and hard-working HVAC systems that accelerate dust, pollen, and dander accumulation. Our allergen reduction service combines deep mechanical cleaning with HEPA filtration and optional sanitizing to remove the particulate matter that triggers symptoms.
Standalone allergen reduction in Hudson costs $240-$520, with package pricing available when combined with mold treatment or UV installation.

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.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Hudson
We specify equipment from Rotobrush, Abatement Technologies, and Aprilaire - the same brands serious HVAC contractors use, not consumer-grade products from big-box stores. For UV installation and air purifier work, we stock Aprilaire and Abatement Technologies units that are sized for the airflow rates of older systems common in Hudson’s housing stock. We don’t sell you a unit designed for a 3,000-square-foot new build and shoehorn it into a 1,200-square-foot Victorian with a 1950s retrofit. Parts are available from our regional warehouse with next-day turnaround, so if something needs adjustment after installation, we’re back quickly.
Common Air Quality & Sanitizing Problems We See in Hudson Homes
- Duct tape-sealed connections on 1950s retrofits fail, allowing untreated outside air and moisture to recontaminate cleaned ducts. We find this in nearly every mill-era multi-family we inspect in Hudson’s downtown core - the tape crumbles to dust when touched, and the gaps behind it pull basement air directly into the supply.
- Undersized trunks with sharp bends in multi-family homes trap debris and block full sanitizer penetration. The original sheet-metal work in these buildings was designed for gravity heat or minimal airflow, not modern forced-air systems. Our equipment and techniques account for these restrictions.
- Mold reoccurs in river-plain homes within months unless combined with UV light installation for ongoing microbial control. We’ve treated the same plenum twice in some Hudson homes before the homeowner agreed to UV - it’s cheaper to do it right the first time.
- Summer humidity amplified by the Assabet River valley accelerates microbial buildup in ductwork, particularly in homes without dedicated dehumidification. The HVAC system becomes a distribution network for whatever grows in the damp corners of the basement.
Pricing for Air Quality & Sanitizing in Hudson, MA
We believe in one honest price, shown before we start. Here’s what air quality and sanitizing services typically cost in Hudson’s market:
| Service | Typical Range in Hudson |
|---|---|
| Mold Treatment | $280 - $650 |
| Bacteria Sanitizing | $220 - $480 |
| Odor Removal | $180 - $420 |
| UV Light Installation | $340 - $780 |
| Air Purifier Installation | $480 - $1,200 |
| Allergen Reduction | $240 - $520 |
Factors that affect your specific price: extent of contamination, accessibility of ductwork (crawlspaces and tight attics take longer), whether your system requires access panel modifications for UV installation, and whether we’re treating a single-family home or a multi-family with multiple trunk lines. We inspect with our camera first, then quote. The number we give you is the number on the invoice.
Standing offers for Hudson homeowners: $50 off any repair over $250, free second opinion on any written estimate, $89 seasonal tune-up, and a permanent 5% senior and veteran discount. Call (844) 685-6342 for your free estimate.
We Also Serve Cities Near Hudson
Our Air Quality & Sanitizing in Hudson service area extends to Stow, Cuyahoga Falls, Munroe Falls, and Tallmadge. We bring the same camera-verified process, upfront pricing, and 90-Day Done Right Promise to every job, whether it’s a river-adjacent Victorian in Hudson or a postwar ranch in Stow.
Serving Hudson, MA - Our Local Coverage Area
We’re based in the Hudson 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 - Air Quality & Sanitizing in Hudson
Ground-level humidity from the river floodplain creates conditions for mold growth in return-air plenums that simply don’t occur in drier, higher-elevation neighboring towns. The moisture seeps into basements and crawlspaces where ductwork runs, and the original sheet-metal trunks in these mill-era homes provide an ideal surface for colonization. If you live below the elevation of Main Street or near the river corridor, we strongly recommend annual camera inspection and proactive treatment. Call (844) 685-6342 to schedule - estimates are free.
Yes, though installation in pre-1900 homes often requires custom mounting because the plenum or air handler wasn’t designed for modern accessories. We’ve installed UV lights in dozens of Hudson’s Victorian and early-20th-century homes, including triple-deckers with 1950s retrofits. The key is proper placement for maximum exposure time and ensuring the unit doesn’t restrict already-limited airflow. Typical installation runs $340-$780 in Hudson. We’ll show you exactly where it goes and why before we start.
The failed duct tape connections and undersized trunks common in Hudson’s 1950s retrofits will continue pulling in debris unless sealed properly. We recommend duct sealing with mastic or metal-backed tape at all joints, plus upgraded filtration matched to your system’s airflow capacity. For homes with chronic dust issues, a whole-home air purifier provides ongoing capture. Our $89 seasonal tune-up includes filter inspection and airflow verification. Call (844) 685-6342 to add this to your maintenance routine.
Not always. If camera inspection confirms dust without active microbial growth, thorough mechanical cleaning and HEPA extraction may be sufficient. However, in Hudson’s older homes with failed duct seals, we often find bacterial colonization in areas the homeowner can’t see - behind failed tape, in standing water in drain pans, or on blower components. We show you the camera footage and recommend only what the evidence supports. Bacterial sanitizing adds $220-$480 when needed.
Odor removal from old ductwork requires more than surface cleaning. In Hudson’s mill-era housing, we typically combine deep mechanical agitation to dislodge layered debris, HEPA vacuuming to extract it, and targeted sanitizing to neutralize the organic material causing the smell. For persistent moisture-related odors, UV light installation prevents regrowth. We addressed exactly this scenario on lower Washington Street in a Victorian triple-decker where decades of river-adjacent moisture had created black mold inside the original trunk. Call (844) 685-6342 - we’ll inspect with our camera and quote the right combination of services for your specific situation.
Written by Ray Castillo, Owner at Bellows Air Duct & Vent Co., serving Hudson since 1984.