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 HVAC Cleaning Across Boston
HVAC cleaning in Boston typically costs $350 – $750 per system for a standard single-family home, and $900 – $1,800 for a triple-decker or brownstone with multiple zones and long duct chases. Most jobs are completed in a single visit lasting four to seven hours, depending on how many returns and air handlers are involved. We’re Cardinal Air Duct Cleaning, part of the Relay Home Co. family founded in 2005, and we work throughout Boston every week. Call us at (737) 727-2314 for a flat-price quote, a written price before any work starts, and before-and-after photos of your own ducts.
Why Cardinal Air Duct Cleaning Is Boston’s Preferred HVAC Cleaning Company
Boston’s housing stock doesn’t respond well to one-size-fits-all cleaning. A Back Bay brownstone with a single air handler feeding four floors through 100-year-old duct chases needs a different sequence than a South Boston side-hall colonial with a modern forced-air system. Our team knows both, plus everything in between: triple-deckers in Dorchester, converted lofts in the Seaport, and mid-century ranches out in West Roxbury.
Every booking runs on HVAC Cleaning through the Relay Standard, which means you get a live trackable arrival window, a technician whose name and photo you see before they ring the bell, and a digital invoice you can pay from your phone. The techs are background-checked, uniformed, and they arrive with professional-grade equipment: Rotobrush rotary brush systems, Nikro HEPA-rated vacuums, and Abatement Technologies containment units. No truck-mounted shop-vac shortcuts.
Omar Haddad leads the team here, and he’s built the Boston operation around one promise: a written price handed to you before a single duct is touched, and a 365-Day Done Right Promise that covers every job. If the work isn’t right within a year, we come back and make it right. No fine print, no exclusions.
Evaporator Coil Cleaning in Boston
Evaporator coil cleaning in Boston runs $180 – $340 when done as part of a full HVAC cleaning, and $250 – $450 as a standalone job. The coil sits above your furnace or inside your air handler, and in Boston it collects a specific kind of grime: air conditioning condensate mixed with dust from steam radiators, pet hair, and the fine plaster particles that older homes shed constantly. When that coil gets coated, airflow drops, humidity rises, and your system works harder through every one of Boston’s humid July nights.
When the Coil Is the Actual Problem
We get calls from homeowners who’ve already paid for duct cleaning somewhere else and still have weak airflow. In a lot of Boston homes, the restriction was never in the trunk lines. It’s the coil. If you hold a flashlight to the coil and the aluminum fins look fuzzy rather than metallic, that’s your answer. We clean the coil with a foaming agent, rinse it, and photograph the before and after so you can see the difference.
Combined Coil and Duct Service
Scheduling a coil cleaning alongside duct cleaning saves a return trip, and honestly, the two are usually needed together. Air passes over the coil before it ever reaches your ducts, so a dirty coil re-contaminates clean ductwork within weeks. When we’re already set up with containment and a HEPA vacuum on site, adding the coil is the single best value in the whole service.
AC Duct Cleaning in Boston
AC duct cleaning in Boston costs $350 – $600 for a typical condo or single-family system with one air handler and eight to twelve registers. The work involves running a rotary brush through the supply and return ducts while a negative-pressure unit pulls loosened debris out of the house rather than pushing it into rooms. That’s what the Nikro HEPA vacuum is for on every job, and for an older Boston building, we place containment around the work area so plaster dust from the ducts doesn’t settle onto your furniture.
Multi-Floor Systems and Shared Returns
In a triple-decker or brownstone, one air handler often serves multiple units through a shared return chase. Boston’s building code and decades of renovations mean those returns collect debris from every unit. When we clean a system like that, we clean the full return path, not just the branches feeding the owner’s unit, because airflow restriction in a shared return affects every floor above and below.
Camera Inspection Before Any Work
We start with a camera inspection of the supply and return ducts. In Boston, it’s common to find decades of accumulated material: plaster dust from ceiling work, pet hair from four generations of renters, and sometimes construction debris that was swept into the registers during a renovation. The camera tells us exactly what we’re dealing with and whether the ductwork has any damage that needs attention before or after cleaning.
Trusted Brands We Service in Boston
We service and clean systems from every major manufacturer, and our trucks carry parts for Honeywell, Aprilaire, and Guardsman filtration products so a filter upgrade or a coil treatment doesn’t require a second visit. When you book with Cardinal, the equipment doing the work matters as much as the system being worked on. We run Rotobrush agitation tools and Nikro HEPA extraction on every job, and Abatement Technologies containment is part of the setup for older Boston homes and multifamily buildings. You should know exactly what tools are coming through your door before we arrive.
Common HVAC Cleaning Problems We See in Boston Homes
- Building-wide airflow issues in triple-deckers and brownstones. One shared return can feed three floors, and when that return is restricted, every unit suffers. The fix is cleaning the shared return path first, then testing airflow at the registers on each floor before and after.
- Plaster dust and renovation debris in older duct chases. Boston’s pre-war buildings shed fine plaster dust for decades, and any renovation makes it worse. This material is fine enough to pass through a standard filter and coat the evaporator coil in a single season.
- Coil restrictions that get misdiagnosed as needing new ductwork. A coated evaporator coil mimics the symptoms of undersized or damaged ducts. Before anyone bids you a full duct replacement, get a camera inspection and a coil check. In Boston, the coil is often the real culprit.
- Humidity control that fails in July and August. When ducts and coils are loaded with debris, airflow drops and the AC can’t remove humidity. Boston summers are muggy enough without a system fighting its own dirt. Clean ducts and a clean coil by early June make a measurable difference.
Pricing for HVAC Cleaning in Boston, MA
Here’s what honest HVAC cleaning costs in Boston, and what drives the number:
- Single-family home, one system: $350 – $600 for ducts, $180 – $340 more if the evaporator coil is cleaned at the same visit.
- Condo or small apartment with one air handler: $325 – $500, depending on the number of returns.
- Triple-decker or brownstone, shared returns: $900 – $1,800 for full supply and return cleaning across multiple floors.
- Standalone coil cleaning: $250 – $450 when booked separately.
You’ll notice we don’t quote per vent. Per-vent pricing is a red flag: a $29-per-vent quote sounds fine until the tech counts twenty-six registers in a three-unit building and the bill hits four figures. We quote one flat price per system before any work starts, in writing, and that number doesn’t change at the door. Ever. Call (737) 727-2314 and you’ll get a real number from a live person, not a callback tomorrow.
We Also Serve Cities Near Boston
In addition to Boston proper, our crews work in Somerville, Cambridge, Chelsea, and Everett every week. The same flat-price-per-system policy and written quote apply everywhere we go, and the drive to any of those cities from our Boston office is under thirty minutes. If you’re just across the Charles River in Cambridge or up in Chelsea, call (737) 727-2314 and we’ll schedule you through the same Relay Standard booking.
Serving Boston, MA - Our Local Coverage Area
We’re based in the 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 About HVAC Cleaning in Boston
Every four to six years for most Boston homes, and sooner if you’ve had a major renovation, if you have pets that shed heavily, or if you live in an older building with plaster walls and shared returns. A system that runs hard through humid summers and cold winters accumulates debris faster. If someone is telling you to do it annually, they’re selling you something you probably don’t need. Skip a year and get a camera inspection instead. Call (737) 727-2314 and we’ll tell you honestly whether cleaning is due or not.
Per system, always. We quote one flat price for the entire system before any work starts, and that number is written down and handed to you. It doesn’t change when the tech counts the registers. Per-vent pricing is the most common bait-and-switch in this industry, especially in Boston triple-deckers where a legitimate count of twenty-plus vents can turn a “$29” quote into a four-figure bill. We won’t play that game, ever.
Photos of your own ducts, from inside the system. We run a camera through the supply and return ducts before cleaning, then again after. You see the same sections, same angles, so you can compare. We also photograph the evaporator coil before and after if that’s part of the job, and the blower housing. These photos are delivered as part of your digital invoice through the Relay Standard, so you can review them on your phone.
Yes, and in Boston we strongly recommend it. The coil sits upstream of the ducts, so cleaning ducts while leaving a fouled coil in place means the ducts get re-contaminated within weeks. Combining both jobs in one visit saves you a second service call and typically adds $180 – $340 to the total, depending on access. We’ll confirm that number in writing before we start.
Because doing the job properly takes four to seven hours, and the scheduling reality of working in Boston’s older buildings means we don’t double-book crews or rush a job to squeeze a same-day slot. A proper cleaning includes camera inspection, containment setup, rotary brush work on both supply and return paths, HEPA extraction, and before-and-after photos. That doesn’t happen in a two-hour window. When we schedule you, you get a live trackable arrival window through the Relay Standard and we show up when we said we would. Call (737) 727-2314 to find the next real opening.
Call Cardinal Air Duct Cleaning in Boston
If you own a condo in the Back Bay, a triple-decker in Dorchester, or a house in West Roxbury and your airflow has been getting weaker season after season, call (737) 727-2314. You’ll reach a live person who can give you a flat price over the phone, schedule a time that works, and confirm the same written quote on arrival. We’ll photograph your ducts before and after, hand you a digital invoice, and back the work with the 365-Day Done Right Promise. Franklin Park to the North End, we know Boston’s systems and we know what they need.
Written by Omar Haddad, Owner at Cardinal Air Duct Cleaning, serving Boston, MA.