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 Randolph
HVAC cleaning in Randolph, MA typically costs $380-$690 for a full system clean on the town’s common raised ranch or split-level layouts, with the work taking one day. Most Randolph homes we service were built between 1945 and 1980, and their duct systems have rarely, if ever, been opened. We schedule crews to Randolph every week, and the truck carries the equipment and parts needed for the older sheet-metal and fiberglass duct board systems that dominate this town. Call (806) 606-6902 for a written price before any work starts.
We know Randolph’s housing stock because we work on it constantly. The North Street split-levels, the Capes along Route 28, the raised ranches off North Main and around Powers Farm. Each subdivision has its own version of the same problem: decades of accumulation inside ducts that were installed during a forced-air conversion and never touched again.
Why CleanRun Air Duct Cleaning Is Randolph’s Preferred HVAC Cleaning Company
Randolph homeowners don’t call us because of a coupon. They call because a neighbor showed them the photo record we leave behind. That’s how most of our work spreads in this town: one homeowner on Acorn Drive sees what came out of a neighbor’s return plenum, and suddenly three more houses on the same street are on the schedule. The documented before-and-after record is part of every job, not an upsell. You see the inside of your ducts before we start and after we finish.
Our team knows what Randolph’s converted heating systems look like on a camera feed. We know the basement layouts on the South side where ducts run tight against foundation walls, and we know the crawl-space retrofits near Pond Street that nobody has opened since the Reagan administration. Under Haven Standard Clause 3, every technician is background-checked and uniformed, with a name you’ll know before they arrive. We publish our license number on the page, not buried in a footer.
Tomas Reyes, who leads our crews, has walked hundreds of Randolph basements. He can tell you within five minutes whether your duct system is original galvanized sheet metal, fiberglass duct board, or a mix of both. That matters because each material fails differently, and each requires different tools to clean properly.
Our HVAC Cleaning Services in Randolph
Evaporator Coil Cleaning
Evaporator coil cleaning in Randolph runs $180-$320 as part of a full system clean. The coil sits above your furnace or inside the air handler, and in Randolph’s humid summers it collects a paste of dust and condensation that cuts heat transfer. Homes along the Route 28 corridor that run central air from June through September tend to have heavier buildup simply from runtime. We remove the access panel, photograph the coil, clean it with a self-rinsing foam, and photograph it again before closing up.
Blower Cleaning
Blower cleaning in Randolph runs $140-$250 depending on whether the blower wheel needs to be pulled or can be cleaned in place. The blower motor in a 50-year-old system has often been replaced at least once, but the wheel itself is frequently original and caked with a layer of dust that reduces airflow by 20-30 percent. On a North Street split-level we recently serviced, the blower was pulling only 0.3 inches of static pressure before cleaning. After cleaning and sealing, it measured 0.8. That’s the difference between a system that conditions the house and one that just makes noise.
Condenser Cleaning
Condenser cleaning in Randolph runs $120-$200 for the outdoor unit. The condenser fins collect grass clippings, cottonwood, and road dust, and in Randolph’s dense neighborhoods the units sit close to driveways where car exhaust adds a film that traps debris. We clean the coils, straighten bent fins, and check refrigerant pressures if the homeowner requests it. A clean condenser running against a clean evaporator coil is what keeps your electric bill from spiking in August.
Air Handler Cleaning
Air handler cleaning in Randolph runs $200-$350 and covers the cabinet interior, drain pan, coil enclosure, and blower compartment. In split-level and raised ranch homes where the air handler sits in a basement utility closet, the drain pan often holds a layer of sludge from years of condensation. That pan drains into a line that runs to a floor drain, and when it clogs, water backs up into the cabinet and onto the basement floor. We see this repeatedly in homes off North Main and in the neighborhoods behind the high school.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
BeforeAfterTrusted Brands We Service in Randolph
We work on all major residential equipment, so if your house in Randolph has a Carrier air handler, a Trane furnace, a Goodman condenser, or a Rheem system, our crews service it. When we need specific parts, we carry common blower motors, capacitor sizes, and drain pan tabs on the truck to keep the visit to one trip. For cleaning work specifically, we run Rotobrush agitation tools for round pipe, Nikro negative-pressure units for full-system extraction, and Guardsman botanical antimicrobials for sanitizing after a clean when the homeowner requests it. These are professional-grade tools you can look up by name before you agree to anything.
Common HVAC Cleaning Problems We See in Randolph Homes
- Disconnected duct joints. In 50-year-old sheet-metal runs, the slip joints between sections pull apart, and conditioned air dumps into basement cavity spaces instead of reaching the second-floor bedrooms. Cleaning alone won’t fix airflow through a disconnected run. The joint needs to be reconnected and sealed with mastic.
- Crushed trunk lines. Basement remodels and decades of stored boxes take a toll on ductwork. We camera every run, and more than a few times we’ve found a trunk line pinched under stored furniture or a support post. Airflow drops, rooms at the far end of the run go cold in winter, and the blower motor works harder to push against the restriction.
- Fiberglass duct board breakdown. The forced-air conversion era in Randolph, roughly 1965 to 1980, relied heavily on fiberglass duct board for trunk lines and plenums. That material degrades over time, and the fiberglass surface breaks down and releases particles into the supply airstream. This requires source removal, not simple brushing.
- Retrofit ducts with no access. When steam or hot-water heat was converted to forced air, the ducts were often routed through interior partition walls with no access panels installed. Those runs collect dust, pet hair, and sometimes rodent debris for decades. Without new access openings cut and finished to NADCA standards, that run cannot be properly cleaned.
Pricing for HVAC Cleaning in Randolph, MA
A full HVAC cleaning in Randolph runs $380-$690 for the system size common in this town’s raised ranches and split-levels. A smaller Cape on the route 28 corridor might land at the low end; a larger split-level with long trunk lines and two returns lands at the higher end. Evaporator coil work adds $180-$320, blower cleaning adds $140-$250, and air handler cleaning adds $200-$350. If sealing work is needed after cleaning, that’s quoted separately with measurements from the camera inspection. We put the full price in writing before any panels come off, under Haven Standard Clause 1. That’s the whole point: you know the number before we start, and it doesn’t change when the crew is on site. Call (806) 606-6902 for a written quote.
We Also Serve Cities Near Randolph
Our HVAC Cleaning teams also run routes through Braintree, Canton, Stoughton, and Weymouth. The housing stock changes town to town, but the build-up problems don’t. If you’re in a 1960s split-level in Braintree or a converted Cape in Stoughton, call (806) 606-6902 and we’ll schedule a written estimate.
Serving Randolph, MA - Our Local Coverage Area
We’re based in the Randolph 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 - HVAC Cleaning in Randolph
Disconnected and crushed runs are common in Randolph because the raised ranch and split-level housing stock was built in the 1960s and 1970s, then converted from oil-fired steam or hot water heat to forced air. The ducts were routed through tight basement cavities and interior partitions with minimal access, and 50 years of storage, appliance moves, and settling have pulled joints apart or collapsed sections. We find this on roughly one in three older Randolph homes we service. After we clean the runs, we reconnect and seal the joints with mastic so the conditioned air actually reaches the registers. Call (806) 606-6902 to schedule a camera inspection of your duct system.
Cleaning alone cannot fix mold growth inside uninsulated basement ducts. Randolph sits in the humid coastal plain south of Boston, and summer dewpoints in the low-to-mid 60s mean basement duct surfaces stay damp for weeks. Mold that has colonized the interior surfaces needs source removal with HEPA-filtered negative pressure, followed by sanitizing with a registered antimicrobial like Guardsman, then the duct run needs to be sealed and insulated so condensation doesn’t return. If the vapor barrier is missing or torn, replacement is the real fix. Call (806) 606-6902 and we’ll camera the run and show you what’s on the walls before you spend anything.
The blower motors in Randolph’s original HVAC systems are usually replacements from the 1990s or 2000s, but the blower wheels themselves are frequently original and loaded with years of accumulated dust. That imbalance reduces airflow and strains the motor bearings. We recently measured a North Street split-level pulling only 0.3 inches of static pressure before cleaning and sealing; after the work, it measured 0.8. If the motor is undersized for the duct run or running hot, we’ll tell you in writing rather than letting it fail in January. Call (806) 606-6902 for a full system evaluation.
You can check the registers and return grilles yourself: pull a floor register and look inside with a flashlight. If you see a thick gray or dark mat on the duct walls, or if the register has a ring of impacted dust around the opening, the system has likely never been professionally cleaned. Homes that changed hands multiple times as the town became a first-time-buyer destination often went decades without this work because it was never flagged on an inspection report. We can camera-inspect the entire system and give you a written assessment and price. Call (806) 606-6902 to schedule one.
Older Randolph homes with multiple past owners tend to have especially dirty ducts because each sale cycle adds another period where cosmetic updates take priority over mechanical maintenance. The ductwork from the forced-air conversion era was often never cleaned after installation, and when a property passes through three or four owners who each lived there five to seven years, the system accumulates decades of dust, pet dander, construction debris from renovations, and sometimes rodent activity. The camera doesn’t lie. We show you what’s in there, write a price to clean it, and hand you the photo record when we’re done. Call (806) 606-6902 to get a written quote for your home.
Written by Tomas Reyes, Owner at CleanRun Air Duct Cleaning, serving Randolph and the South Shore since 2013.