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 Air Duct Cleaning Across South Boston
Air duct cleaning in South Boston, MA typically runs $450-$850 for a full system on a triple-decker condo or rowhouse, and most jobs are completed in a single day. We’ve worked in South Boston long enough to know that nearly every HVAC system here is a retrofit squeezed into spaces never built for ductwork, which is exactly why a standard shop-vac approach fails. Our crews understand Southie’s housing stock, its harbor-driven humidity, and the specific ways ducts fail here. Call (806) 606-6902 for a written price before any work starts, per Haven Standard Clause 1.
Why CleanRun Air Duct Cleaning Is South Boston’s Preferred Air Duct Cleaning Company
Homeowners in South Boston call us because we document what we find. Every visit includes a camera inspection of each duct run, with before-and-after photos delivered as part of the standard job record. If a previous crew cleaned your ducts and handed you an invoice with no photo evidence, you don’t actually know what they did. Tomas Reyes, who leads our team, built CleanRun around a simple principle: show the customer the inside of the duct before asking them to believe it’s clean. Since 2013, we’ve served more than 52,000 homes under that standard.
On a recent job on East Broadway, our crew opened a supply register in a second-floor condo and found the flex duct had sagged into an uninsulated rim-joist cavity above the basement slab. The inner liner showed visible mold colonization after just three heating seasons. We ran our Rotobrush agitation tools with a HEPA-filtered negative-air machine at the air handler, removed the source material, and then showed the owner camera footage of the cleaned duct. No fogging, just mechanical removal. That’s the difference between a visit and a documented record.
We coordinate scheduling and dispatch from our Boston office, and crews serve South Boston locally, which means we’re familiar with the parking constraints on narrower streets like those off East Broadway and Dorchester Street, and we plan jobs around them.
Our Air Duct Cleaning Services in South Boston
Our Air Duct Cleaning team handles everything from single-floor condo retrofits to full triple-decker systems. Here’s what we actually do in South Boston:
Residential Duct Cleaning
Most South Boston homes are triple-deckers or brick rowhouses where each floor got its own improvised duct system during condo conversions. That means a single building visit can involve three entirely different makeshift layouts, and our process treats each floor as its own system. We clean supply and return runs, registers, the plenum (the box where ducts connect to the air handler), and the air handler itself.
Full System Cleaning
A full system clean in South Boston includes mechanical agitation of every duct run with brush or air-whip tools, negative-pressure extraction at the air handler, and video documentation of each run before and after. This matters more in Southie than in nearby inland towns because the retrofits here are tighter, shallower, and harder to reach, so partial cleaning genuinely leaves debris behind.
Supply Duct Cleaning
Supply ducts carry conditioned air from your furnace or air handler to each room. In South Boston’s retrofits, these runs often pass through rim-joist cavities and wall chases with sharp angles that trap dust, pet hair, and construction debris from the conversion itself. We clean supply ducts under negative pressure so dislodged material is extracted at the source, not blown into your living space.
Return Duct Cleaning
Return ducts pull room air back to the air handler. In older South Boston buildings, returns frequently share wall cavities with bathrooms and kitchens, which means they pull in humid air and organic particles. A return duct that’s never been properly cleaned recirculates that material into every room it supplies. Our return cleaning includes removing the register, cleaning the full run, and video verification at the air handler end.
Video Inspection
Before we touch a single panel, we run a camera through every accessible duct run. This serves two purposes in South Boston: it identifies the collapsed or crushed flex duct common in these retrofits, and it establishes a baseline so you can see the difference when we’re done. The video record is yours to keep as part of the job file.
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.
- 4
You approve before work beginsNothing starts until you say go.
BeforeAfterTrusted Brands We Service in South Boston
We clean and service equipment from every major manufacturer, and our trucks carry replacement filters and standard components for the systems most common in South Boston’s converted triple-deckers. For jobs involving heavy contamination, we use professional-grade equipment from Abatement Technologies, Nikro, and Rotobrush, brands you can verify independently before you agree to any price. If someone shows up with a rental carpet cleaner and a drill attachment, the quote isn’t honest.
Common Air Duct Cleaning Problems We See in South Boston Homes
South Boston’s combination of 1890-1930 housing stock, harbor humidity, and cramped retrofits produces a specific set of failures. These are the ones we see most often:
- Crushed flex duct at the rim joist. During condo conversions, contractors ran flexible duct through cavities too shallow for rigid pipe. Over time the duct sags, kinks, and collapses, sometimes to half its labeled diameter. Air keeps moving, but debris packs into the folds and the system has to work harder. A standard duct cleaning crew that never looks inside will miss this entirely and clean around it.
- Mold colonization inside uninsulated duct runs above wet basements. On blocks near East Broadway and K Street, the flex duct often passes through an uninsulated rim-joist cavity directly above a damp crawl space or slab. Cold surface, trapped moisture, organic dust, and no airflow buffer. Within three heating seasons, the inner liner can show visible growth even if the rest of the house feels dry.
- Debris settling back after a register-only vacuum job. Southie’s retrofits have tight, irregular runs with multiple elbows. If a crew only vacuums at the register without pulling negative pressure at the air handler, the loosened debris resettles inside the duct before it exits the system. That’s why our full system cleaning always pairs agitation with extraction at the air handler.
- Fogging sold as a substitute for source removal. Contractors sometimes sell an antimicrobial fog as a fix for moldy ducts. The fog cannot reach the moisture-bound biofilm on duct walls in those high-humidity retrofits. In South Boston’s specific environment, fogging is an upsell, not a solution. Source removal, the mechanical removal of built-up material, is what actually changes the condition of the duct.
Pricing for Air Duct Cleaning in South Boston, MA
We publish written prices before work starts, every time. That’s Haven Standard Clause 1, and it’s non-negotiable in our company. For a standard South Boston condo unit with a single retrofit system, most full cleans run between $450 and $650. A triple-decker where we’re cleaning three independent systems typically runs $850 to $1,400, depending on access, system length, and whether heavier contamination requires additional passes. Video inspection is included in every price. If you bring a competitor’s written estimate, we’ll put our number next to it in writing as a free second opinion. There is no per-vent pricing, no coupon that becomes something else once our van is on your street. One flat price per system, agreed before the first panel comes off.
We Also Serve Cities Near South Boston
Our crew covers South Boston directly, and from the same local operations we handle jobs across the wider metro. That includes Boston itself, Worcester, Springfield, and Lowell. If you’re in one of those communities or on the South Boston waterfront near the Reserved Channel, call (806) 606-6902 and we’ll put a written price in front of you before any work begins.
Serving South Boston, MA - Our Local Coverage Area
We’re based in the South Boston 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 Duct Cleaning in South Boston
South Boston sits on a peninsula with Boston Harbor on three sides, so the air entering your building carries more salt and moisture than inland communities like Milton or Roslindale. When that humid air enters ducts that run through uninsulated rim-joist cavities or against cold masonry, condensation forms on the inner duct surface. Add the organic dust that accumulates in these tight retrofit runs, and you have conditions for microbial growth within a few heating seasons. A house in Milton with purpose-built ductwork and drier conditions won’t show the same pattern as fast. Call (806) 606-6902 for an exact quote, estimates are free and always in writing.
Yes. South Boston’s triple-deckers often have three entirely separate duct systems, one per floor, each improvised during a different condo conversion. Our crews treat each floor as its own job: separate access, separate video inspection, separate negative-pressure setup. This takes longer than a single-family home with purpose-built ducts, which is reflected in the written price you receive before we start, not discovered halfway through.
Source removal means mechanically removing accumulated debris, dust, and any visible growth from the duct surfaces themselves, using agitation tools and negative-pressure extraction, then verifying with a camera. Fogging sprays a chemical into the duct, but in South Boston’s retrofits the contaminant is bound to the duct wall by moisture and organic material. The fog cannot penetrate that layer. We don’t sell fogging as a substitute for cleaning because it isn’t one. If a rowhouse on East Fourth or Telegraph Street has visible contamination inside a duct run, the material has to come out, not be sprayed over.
Yes, and this is a configuration we see regularly in South Boston’s converted rowhouses. A return duct sharing a wall cavity with a bathroom pulls in shower humidity, organic particles, and warmer air. That raises the moisture content inside the return run, especially during Boston winters when the surrounding masonry is cold. Standard duct cleaning tools often can’t navigate these narrow chases. Our approach for these runs includes a camera inspection to check for internal contamination and condensation staining, followed by cleaning under negative pressure with tools sized specifically for tight retrofit spaces. Call us at (806) 606-6902 for a written quote.
Most South Boston condos near the water should be cleaned every 2 to 4 years, with units directly facing the harbor on the lower floors falling closer to the 2-year mark. The determining factors are proximity to the water, whether the building’s rim-joist cavities are insulated, and how often the system runs during Boston’s long winters. If you have pets, the interval shortens further. We’ll tell you honestly what your system needs after a video inspection; we don’t sell an annual cleaning schedule because that would be padding the invoice.
Written by Tomas Reyes, Owner at CleanRun Air Duct Cleaning, serving South Boston since 2013.