Lennox Air Duct Cleaning in Randolph, MA | Everest Air Duct Cleaning Service Massachusetts
Independent Lennox air duct cleaning in Randolph typically runs $280–$520 for a full system cleaning, and most jobs are completed in a single visit. We’re not a factory-authorized dealer—Scott Gray and our team are independent specialists who’ve spent 11 years inside Lennox Merit, Elite, and Signature systems across Massachusetts, including hundreds of homes in the 02368 ZIP code. Call (888) 597-5659 for a free estimate and same-week scheduling.
Why Randolph Residents Choose Us for Lennox Service
Scott handles every job personally. That’s not a slogan—it’s how Everest operates. When you call about your Lennox system, the person who answers is the same person who’ll be crawling through your basement with a Rotobrush and a borescope.
We’ve cleaned Lennox equipment in Randolph for 11 years. We know the G50 Merit furnaces that shipped with 1970s raised ranches, the G61 Elite units that replaced them, and the SLP98 Signature condensing systems that homeowners install now. Our Nikro HEPA vacuums and Abatement Technologies air scrubbers are the same tools commercial contractors use—not the consumer-grade equipment you’ll find at hardware stores.
Scott grew up in Worcester, not far from Green Hill Park, and got his start in HVAC through the sheet metal program at Quinsigamond Community College. That training still shapes how he diagnoses a system: look at the mechanical reality before touching a brush. 617 customers have rated us 4.9 stars. The volume matters—it means we’ve seen enough Lennox systems to know what’s normal wear and what’s a warning sign.
We use OEM Lennox parts when they’re cost-effective and available. When they’re not, we’ll tell you exactly which aftermarket alternative we’re using and why. No manufacturer affiliation means no pressure to sell you a new unit when cleaning and sealing will solve the problem.
Common Lennox Air Duct Cleaning Problems We Solve in Randolph
- Cracked heat exchangers in G50 and G60 units — Randolph’s inland South Shore location delivers brutal freeze-thaw cycles every winter. Lennox air handlers in raised-ranch basements take the worst of it. We video-inspect every heat exchanger we can access; a crack that’s invisible to the homeowner can vent carbon monoxide into supply ducts. We’ve caught this in three Randolph homes in the past eighteen months.
- Rusted drain pans dripping into supply ducts — The original Lennox Merit G50 furnaces installed in 1970s split-levels came with galvanized drain pans that weren’t built for decades of humid maritime air. Randolph’s summer humidity accelerates the corrosion. Condensate drips into the supply plenum, and suddenly you’re blowing mold-friendly moisture through every register. We pull the pan, assess the damage, and clean the contamination downstream.
- Flexible duct runs with sharp bends trapping debris — Lennox contractors in the 1980s and 1990s often used flexible duct for basement extensions in Randolph’s ranch stock. A 90-degree bend over a basement beam creates a debris trap that standard vacuums can’t touch. Our Rotobrush system with camera guidance follows the full run and breaks up packed dust, pet dander, and construction residue.
- Disconnected return plenums pulling basement air into living spaces — This one’s Randolph-specific. Finished-basement projects from the 1970s and 1980s frequently left return plenums open to wall cavities behind drywall. Your Lennox system recirculates basement air—sometimes including pest debris, insulation fibers, and mold spores—throughout the house. Our video inspection finds these disconnections; our duct sealing with mastic closes them permanently.
- Evaporator coil fouling from year-round HVAC use — Randolph’s climate demands heat in January and AC in July. That constant cycling means your Lennox evaporator coil never gets a break. Dust bypassing a clogged filter cakes onto the coil, reducing efficiency and providing a growth medium for mold. We remove and clean the coil as part of our full-service cleaning, not as a separate upsell.
Lennox Service in Randolph: What Local Conditions Mean for Your Equipment
Randolph’s housing story is written in its basements. The town’s primary build-out in the 1960s and 1970s packed in raised ranches and split-levels with original forced-air duct systems now pushing 50–60 years of age. Multiple ownership cycles and a diverse, growing population drove wave after wave of renovation—often piecemeal basement finishing by homeowners or informal contractors who rerouted ductwork without engineering review.
Here’s what that means for your Lennox system specifically. In a typical Randolph split-level on a street like Birch Meadow Road, you might have a Lennox G50 or G60 furnace connected to duct runs that were extended during a 1980s basement remodel. The supply plenum was cut open to feed a new family room. The return was patched with flexible duct and a stud-bay cavity. No mastic. No mechanical seal. Just drywall and hope.
Your Lennox blower doesn’t know the difference between conditioned air and basement air. It pulls whatever’s available. For years, that can mean drywall dust from a 1990s renovation, mouse droppings from a cavity that was never sealed, or moisture-laden air from a basement with seasonal condensation issues. The Signature Series SLP98 is a precision machine—it will circulate exactly what you feed it. We clean it, repair it, and seal it so what’s feeding it is clean air.
We recently cleaned a Lennox G50 Merit furnace in a split-level on Birch Meadow Road where the return plenum was drawing air from a finished basement cavity behind drywall—the homeowner had complained of dust for years. Our video inspection revealed decades of drywall dust, insulation fibers, and mouse droppings in the supply trunks, and we sealed the open junction with mastic after a full HEPA vacuum and antimicrobial coil treatment. If I wouldn’t leave it in my own house, I’m not leaving it in yours.
Lennox Models & Products We Service in Randolph
We work on the full Lennox residential line, with particular depth in the units that dominate Massachusetts housing stock:
- Merit Series — G50, G51. The workhorse furnaces of 1970s and 1980s construction. We stock common replacement parts and have cleaning protocols for their compact heat exchanger designs.
- Elite Series — G60, G61. Two-stage and variable-speed models common in 1990s and 2000s renovations. These units require careful airflow balancing after duct cleaning; we verify static pressure before and after.
- Signature Series — SLP98, S40. Premium modulating systems with sophisticated control boards. We use Abatement Technologies air scrubbers during cleaning to protect sensitive electronics from dust migration.
OEM Lennox filters, ignitors, and control modules are our first choice when price and availability align. For older Merit units where factory parts are discontinued or priced beyond practical value, we source quality aftermarket alternatives and explain the trade-off. We keep common Lennox consumables in stock for Randolph jobs—no waiting on shipping for a filter change or ignitor replacement.
Lennox Service Pricing in Randolph
Full-system Lennox air duct cleaning in Randolph typically ranges from $280–$380 for a standard single-furnace home with 12–20 vents. Larger homes, multiple systems, or heavy contamination from renovation debris push the upper range to $420–$520.
| Service Component | Price Range |
|---|---|
| Full air duct cleaning (single system) | $280–$380 |
| Evaporator coil cleaning | $85–$140 |
| Video inspection with documentation | $65–$95 |
| Duct sealing (mastic, accessible runs) | $120–$220 |
| Antimicrobial sanitizing (per system) | $75–$125 |
What drives cost: number of vents, accessibility of basement duct runs, presence of flexible duct that requires camera-guided cleaning, and whether we find disconnected plenums that need sealing. Every estimate includes a full video inspection—we don’t guess at what’s in your ducts.
Call (888) 597-5659 for an exact quote. Estimates are free, and Scott handles them personally.
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 — Lennox Air Duct Cleaning in Randolph
We evaluate the furnace and ductwork separately. A 1975 G50 is at or past typical service life, but if the heat exchanger is intact and the blower assembly runs clean, duct cleaning and sealing can buy you several more seasons of safe operation. We only recommend full replacement when the heat exchanger is cracked, repair costs exceed 50% of a new unit’s price, or efficiency gains would pay back within five years. Call (888) 597-5659 and we’ll inspect both systems honestly.
Yes, almost certainly. Randolph’s humid maritime air hits basement duct runs hard, especially in uninsulated cavities. Condensation on cool supply ducts promotes mold and bacterial growth that your Lennox blower distributes throughout the house. We see this most in 1960s–70s raised ranches where basement finishing left ductwork exposed to wall cavities. Our cleaning includes antimicrobial treatment of the evaporator coil and supply plenum, plus sealing any open junctions we find. Call (888) 597-5659 to schedule a video inspection.
We use OEM Lennox parts when they’re cost-effective and currently available. For discontinued items—common with 1970s Merit units—we source quality aftermarket alternatives and explain the specification match. We’re independent, not manufacturer-authorized, so our only loyalty is to what works for your system and budget.
Absolutely. We specifically look for this in Randolph homes. Our borescope follows duct runs through finished cavities and identifies open plenums, unsealed junctions, and debris accumulation behind drywall. The Birch Meadow Road job we mentioned earlier is a textbook example—we found a return pulling contaminated basement air for over a decade. Video inspection is standard on every estimate.
Every 3–5 years for standard occupancy, sooner if you have pets, allergy sufferers, or recent renovation activity. Randolph’s 50–60-year-old duct systems with informal modifications accumulate debris faster than newer, sealed installations. Homes with finished basements that left ductwork exposed should be inspected every 2–3 years. Call (888) 597-5659 to set up a schedule based on your specific home.
Service Areas Near Randolph
We serve Lennox owners throughout the South Shore and Greater Boston area, with regular jobs in Boston, Cambridge, Somerville, Worcester, and Lowell. Scott’s Worcester roots mean we still handle a strong volume of central Massachusetts work, and our Randolph customers benefit from that regional experience across every era of Lennox installation.
Book Your Lennox Service in Randolph Today
Scott handles every job personally. 11 years focused on one thing. 617 customers have rated us 4.9 stars. If your Lennox system is circulating air through 50-year-old ductwork that’s been modified by three previous owners, you need someone who’ll look at the mechanical reality and tell you straight what’s worth doing.
Call (888) 597-5659 for a free estimate. Same-week scheduling available for Randolph homes in the 02368 ZIP code.
Written by Scott Gray, Owner at Everest Air Duct Cleaning Service Massachusetts, serving Randolph and Massachusetts since 2013.