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.
Before
After
Before
After
Before
AfterFast, Reliable Duct Sealing Across Hudson
We seal ducts in Hudson homes where the housing stock tells a story, from downtown triple-deckers to new condos on the old DEC campus. Our dispatch team runs out of the Boston office, and crews are on Hudson roads regularly, working through Marlborough Street ranches and the winding roads off Main. If your registers blow lukewarm air, your upstairs rooms never match the thermostat, or your heating bills climb every winter, leaking ductwork is the likely culprit. Call us at (361) 326-5060 and we’ll send a written estimate before any work starts.
Why Hollis Air Duct Cleaning Is Hudson’s Preferred Duct Sealing Company
We’ve been in business since 2004 as part of the Garrison Partners family, and our Hudson customers know we don’t quote one price on the phone and another at the door. The 365-Day Done Right Promise covers every duct sealing job in writing: if the seal fails within a year, we come back and make it right at no charge, including a free second visit. Our technicians are background-checked, uniformed, and trained to handle the specific hazards of Hudson’s older housing, including asbestos-wrapped ducts and shared chases with knob-and-tube wiring. Phones are answered by a live person 24 hours a day, seven days a week, no voicemail loops. We price every job in writing before we touch a tool, and we leave the site clean. That’s The Garrison Standard.
HVAC Duct Sealing in Hudson
Hudson Duct Sealing demands zone-by-zone work because the same forced-air system often connects 1920s galvanized trunks, asbestos-wrapped post-war branches, and modern flex runs installed during DEC-campus condo conversions. We don’t run a single vacuum hose through the whole house and call it done. Our crew inspects each zone with a camera, identifies the material and joint type, then selects the right sealant and application method for that section. In Hudson, a typical whole-home HVAC duct sealing job runs $1,200 – $2,800 depending on system size, access difficulty, and whether we encounter asbestos wrap that requires HEPA containment before sealing. Call (361) 326-5060 for a free written estimate on your specific system.
Asbestos-Wrapped Duct Inspection
Many Hudson homes, especially downtown triple-deckers and mill-worker cottages, still have original asbestos wrap on supply ducts. We inspect every accessible trunk and branch with a camera before sealing. If friable material is present, we set up HEPA filtration and containment before applying Guardsman mastic or foil tape to accessible joints. We won’t disturb hazardous material to save time.
Zone-by-Zone Pressure Testing
After sealing, we pressure-test each zone independently to verify the repair. In a typical Hudson split-level or cape, we often find the upstairs zone leaking 25 – 40 percent more than the main floor. We document the before-and-after numbers in writing, so you see exactly what changed.
Duct Repair in Hudson
Duct Repair in Hudson often means fixing what decades of patchwork installation left behind: crushed flex runs in DEC-campus condo conversions, disconnected collars in 1950s ranch crawl spaces, and corroded galvanized joints in downtown mill-era basements. We don’t slap tape over a failing joint and invoice you. Our crew cuts out damaged sections, fabricates replacement fittings to match irregular old sizing, and seals with mastic rated for the temperature and pressure of that zone. Duct repair in Hudson typically runs $400 – $950 for localized fixes, or $1,500 – $3,200 if we’re rebuilding significant portions of a multi-zone system. Every repair gets the same written price upfront and 365-Day Done Right Promise coverage.
Crushed Flex Run Replacement
Newer Hudson condos and additions often use flex duct that gets crushed during roofing work or storage in tight attics. We replace the damaged run with properly sized flex or rigid duct, support it to prevent sagging, and seal every connection with mastic. A single crushed run in a Hudson ranch attic typically runs $350 – $600 to replace and seal.
Galvanized Joint Rebuild
Original galvanized ducts in pre-1950 Hudson homes corrode at the seams and collars. We cut back to sound metal, fabricate a transition fitting, and seal with high-temperature mastic. These repairs take longer than flex replacement but last decades longer than tape patches.
Trusted Brands We Service in Hudson
Our Duct Sealing crew carries professional-grade equipment from Rotobrush, Nikro, and Abatement Technologies, plus sealing and filtration products from Guardsman, Honeywell, and Aprilaire. We stock common duct diameters and mastic types for Hudson’s mixed housing stock, so we’re not ordering parts while your system stays open. For the irregular joint sizes common in downtown triple-deckers and post-war capes, we fabricate custom transitions on site. That means faster turnaround and fewer return visits than crews working from standard van stock.
Common Duct Sealing Problems We See in Hudson Homes
- Asbestos wrap on original supply trunks. Downtown Hudson triple-deckers and mill-worker cottages often have friable asbestos wrap hiding in shared chases. Sealing without inspection disturbs hazardous material. We camera-inspect first and set up HEPA containment when needed.
- Knob-and-tube wiring in duct chases. Old electrical runs share space with ducts in Hudson’s pre-1940 housing. Our technicians use non-conductive hoses and careful routing to avoid electrical arcs near live wiring.
- Irregular duct sizing in post-war capes. 1950s – 60s Hudson ranches and capes were built with non-standard collar sizes and improvised transitions. Camera inspection reveals leaks at joints that visual inspection misses, saving wasted sealing effort on the wrong connections.
- Shared-stack dryer vents in multi-unit buildings. Hudson’s dense downtown housing often routes multiple dryer vents through a single chase. We inspect the full stack for blockages and leaks before sealing any individual connection, or the repair fails when neighboring units run.
Pricing for Duct Sealing in Hudson, MA
In Hudson, whole-home duct sealing typically runs $1,200 – $2,800. Localized duct repair runs $400 – $950 for single-zone fixes, or $1,500 – $3,200 for multi-zone rebuilds. What moves you within those ranges: system size (a downtown triple-decker with three zones costs more than a ranch with one), access difficulty (crawl spaces and shared chases take longer), and whether we encounter asbestos wrap requiring HEPA containment before sealing. We don’t quote per-vent teaser prices that balloon at the door. We inspect, write the full price, and get your approval before any work starts. Estimates are free. Call (361) 326-5060 to schedule.
We Also Serve Cities Near Hudson
Our crews work throughout the region, including Duct Sealing in Hudson and neighboring Marlborough, Maynard, Clinton, and Northborough. Each community has its own housing stock and ductwork quirks, and we adjust our approach accordingly.
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 About Duct Sealing in Hudson
Yes, we seal ducts in shared chases regularly, but we take specific precautions first. We camera-inspect the full chase for knob-and-tube wiring and asbestos wrap, then use non-conductive hoses and HEPA containment as needed before applying sealant. On a triple-decker near Main Street in downtown Hudson, our tech found the second-floor apartment’s supply and return ducts leaking at every joint, with original asbestos wrap still present on the main trunk. We used a camera inspection to confirm the wrap condition, then applied non-conductive hoses and sealed the accessible joints with Guardsman mastic after HEPA filtration source removal in the shared return chase. The tenant reported less dust on registers within a week and the landlord scheduled the remaining two units for zone-by-zone sealing. Call (361) 326-5060 to discuss your building’s specific chase configuration.
Downtown mill-worker homes require material-specific handling of asbestos wrap, non-conductive equipment near old wiring, and zone-by-zone sealing of irregular galvanized and flex transitions. DEC-campus condos have newer flex runs and regular sizing but often show crushed ducts from construction and shared-stack venting that needs full-stack inspection before sealing. The price range is similar, but the technique and safety setup differ significantly. We assess which category your home falls into during the free estimate.
Yes, our Hudson Dryer Vent Cleaning team inspects and seals dryer vents in shared stacks common to Hudson’s downtown multi-unit housing. We run a camera through the full stack to locate blockages and leaks, then seal individual connections and the main stack joints as needed. We won’t seal one unit’s connection without inspecting the full stack, a failed seal from upstream pressure will reopen. Shared-stack dryer vent sealing in Hudson typically runs $300 – $700 per building depending on stack height and access.
A typical 1950s ranch in Hudson has a single-zone system with galvanized or early flex duct in the crawl space or basement. We pressure-test the system, camera-inspect for leaks at joints and seams, then seal accessible connections with mastic and foil tape. Many suburban Hudson ranches have irregular collar sizes from original installation, so we fabricate custom transitions where needed. Whole-home sealing for a ranch this age typically runs $1,000 – $2,200.
Yes, sealing leaks in return ducts eliminates the negative pressure that pulls dust, pollen, and crawl-space moisture into your system. Hudson’s cold winters and humid summers force HVAC systems to run heavily in both seasons, and leaky returns in older homes compound the problem by drawing unfiltered air from basements and wall cavities. After sealing, homeowners typically notice less dust on registers within one to two weeks, and the system doesn’t work as hard to maintain temperature. Call (361) 326-5060 for a free estimate.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Hudson and surrounding communities since 2004.