Lennox Air Duct Cleaning in Cohasset, MA | Everest Air Duct Cleaning Service Massachusetts
We provide independent Lennox air duct cleaning service across Cohasset’s 02025 ZIP code, with same-day scheduling available for most calls to (888) 597-5659. The one thing that makes our Lennox work here different: we’ve spent 11 years documenting how Cohasset’s salt-laden marine air corrodes galvanized ductwork at double or triple the rate of inland towns, and we adjust our cleaning protocols accordingly. Scott Gray handles every job personally.
Why Cohasset Residents Choose Us for Lennox Service
We’ve cleaned Lennox systems in Cohasset since 2014 — Merit Series furnaces in pre-war Colonials on Atlantic Avenue, Signature Series heat pumps in mid-century homes off Jerusalem Road, Elite Series units in renovated Victorians near the harbor. Scott Gray grew up in Worcester, not far from Green Hill Park, and got his start in HVAC fundamentals through the sheet metal program at Quinsigamond Community College. That background matters when he’s threading equipment through the tight, retrofitted framing of a 1920s Cohasset home where someone else jammed ductwork in sideways.
We’re not a Lennox-authorized dealer. We’re independent. That means no corporate service bulletins forcing us to replace what we can repair, no markup on OEM parts when aftermarket makes more sense, and no rotating crews who’ve never seen what salt air does to a G50 Merit furnace plenum. Scott answers the phone, runs the Rotobrush, and signs off on every job. 617 customers have rated us 4.9 stars. If I wouldn’t leave it in my own house, I’m not leaving it in yours.
Common Lennox Air Duct Cleaning Problems We Solve in Cohasset
- White salt-mineral deposits at galvanized seam joints. We see this constantly on Lennox supply trunks in Cohasset homes within a few blocks of the bay — the distinctive crystalline buildup that signals active corrosion. Left alone, these seams develop pinholes that pull attic or crawlspace debris straight into your airflow. Our video inspection catches it before the metal fails.
- Fiberglass duct board liner degradation in retrofitted historic homes. Cohasset’s pre-1950s housing stock often has Lennox systems shoehorned into spaces never designed for forced air. Marine humidity gets trapped between original framing and added ductwork, corroding the fiberglass liner from the outside in. The liner sheds particles. We find it with our camera, remove the degraded sections, and seal properly.
- Green mold colonies at supply boots after nor’easter moisture infiltration. Lennox insulated flex duct in Cohasset crawlspaces doesn’t just get damp — it stays damp. We’ve documented active mold at supply boots within 3–4 months of major storm events. Our full system cleaning includes HEPA vacuuming with Nikro equipment, then sanitizing with Guardsman antimicrobial treatment.
- Corroded return plenums with pitting holes. The combination of salt air and poor drainage in basement plenums of coastal-facing Cohasset homes eats through Lennox metal faster than you’d expect. We map the damage, repair with mastic sealant where structurally sound, and flag replacement needs honestly.
- Compressed flex duct in tight historic chases. Whoever retrofitted your Cohasset Colonial’s HVAC probably squeezed Lennox flex runs through framing cavities too small, creating kinks that trap debris and restrict airflow. We don’t just vacuum around the problem — we repair or replace the flex duct with proper routing.
Lennox Service in Cohasset: What Local Conditions Mean for Your Equipment
Cohasset’s coastal exposure means salt air infiltrates Lennox ductwork year-round, causing galvanized metal to corrode 2–3x faster than in inland towns like Norwell — a pattern we document in every video inspection by noting the distinctive white salt-mineral deposits at supply trunk seams. We cleaned a Lennox Merit M80 system on Jerusalem Road in Cohasset, 2 blocks from the bay. The galvanized supply trunk had visible white salt deposits at every seam joint and active pitting holes where marine air had eaten through. After HEPA vacuuming, we applied mastic sealant to all joints and recommended a full duct inspection every 18 months due to the corrosive local environment.
That 18-month interval isn’t a guess. It’s what we’ve learned from 11 years of watching Cohasset ductwork degrade in real time. Inland South Shore towns? Standard 3-year cleaning cycle works fine. Here, the salt doesn’t care about your schedule.
Lennox Models & Products We Service in Cohasset
We work on the full Lennox residential lineup: Signature Series smart thermostats and communicating systems (S30, S40), Elite Series two-stage and variable-capacity equipment (EL296, EL18XCV), and the workhorse Merit Series (M50, M80) plus the G50 Merit furnace we see constantly in Cohasset’s older housing stock. For critical components — dampers, plenums, control boards — we source OEM Lennox parts for proper fit and performance. For non-structural items like flex duct, grilles, and standard boots, we’ll use quality aftermarket alternatives when it saves you money without compromising reliability. We carry common Lennox dampers and plenum sections on our truck for same-day repair in 02025. Units over 15 years old with severe corrosion? We’ll tell you straight whether repair math still works.
Lennox Service Pricing in Cohasset
Most Cohasset homeowners with standard Lennox duct systems fall in these ranges:
- Full system cleaning: $350–$650 depending on home size, duct accessibility, and contamination level
- Video inspection with written report: $150–$250 (waived with booked cleaning)
- Flex duct repair/replacement (per run): $200–$450
- Mastic sealing of corroded seams: $180–$320
- Air quality sanitizing (Guardsman antimicrobial): $125–$225
Historic Cohasset homes with non-standard duct routing, tight access, or extensive salt corrosion remediation typically run toward the higher end. Every estimate starts with a free on-site assessment — no phone guesstimates that change when we arrive. Call (888) 597-5659 to schedule yours.
Serving Cohasset, MA — Our Local Coverage Area
We’re based in the Cohasset 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 Cohasset
Every 18 months for Cohasset homes within a half-mile of the coast, versus the standard 3-year cycle inland. The salt-laden marine air accelerates corrosion and biological growth in Lennox galvanized trunks and flex duct sections. Call (888) 597-5659 and we’ll assess your specific exposure — estimates are free.
Cleaning removes the debris and moisture that feed corrosion, but it doesn’t stop salt air exposure. We pair cleaning with mastic sealing of corroded seams and honest assessment of replacement timing. For active pitting, we document it on video and show you exactly what we’re seeing. Call (888) 597-5659 for a free inspection.
Yes. Retrofitted forced-air systems in pre-1950s Cohasset homes often have tight chases, non-standard flex connectors, and limited access points. We use smaller-diameter Rotobrush attachments and portable Nikro HEPA vacuums that fit where truck-mounted units can’t. Scott Gray personally plans the access strategy before any equipment enters your home.
The G50 Merit furnace and M80 Merit series appear most frequently in Cohasset’s older housing stock — units installed during 1990s–2000s retrofits into homes never designed for forced air. Their original galvanized plenums and supply trunks face accelerated salt corrosion in coastal basements and crawlspaces. We inspect these specifically for seam-joint pitting that generic cleaners miss.
Absolutely. Salt air penetrates basement and crawlspace plenums, corroding metal housings, weakening electrical connections, and promoting mold on insulation liners. We’ve replaced Lennox air handler sections in Cohasset that failed prematurely due to unchecked salt corrosion — damage preventable with proper cleaning intervals and sealing. Call (888) 597-5659 for an assessment.
Service Areas Near Cohasset
We run Lennox service calls throughout the South Shore and into Greater Boston from our base — regular stops include Boston, Cambridge, Somerville, Lowell, and our home territory of Worcester where Scott grew up. Most Cohasset appointments book within 24–48 hours.
Book Your Lennox Service in Cohasset Today
Scott Gray handles every Lennox job personally — same person who answers your call at (888) 597-5659 runs the Rotobrush and signs off on the work. Same-day availability for most Cohasset calls. Free estimates. No corporate dispatch, no rotating crews, no surprises.
Written by Scott Gray, Owner at Everest Air Duct Cleaning Service Massachusetts, serving Cohasset since 2014.