Lennox Air Duct Cleaning in Old Greenwich, CT | Elite Air Duct Cleaning Service Connecticut
Lennox air duct cleaning in Old Greenwich typically runs $450–$1,200 depending on system size and corrosion severity, with most jobs completed in a single day. What sets our work apart here is the salt-air signature damage we see in waterfront homes — rust-stained flex-duct collars and mold-ringed return grilles that inland technicians rarely encounter. We bring Rotobrush and Nikro equipment plus 20 years of Lennox-specific experience to every job in the 06870 ZIP code. Call (866) 531-5603 for a free estimate.
Why Old Greenwich Residents Choose Us for Lennox Service
Matthew Gonzalez handles your job personally — owner on-site, every time. That’s not a slogan; it’s how we’ve operated for 20 years. After growing up in New Haven’s Fair Haven neighborhood and cutting his teeth on triple-decker heating systems, Matthew built Elite Air Duct Cleaning around a simple premise: the person who owns the business should be the one crawling through your crawlspace.
We’ve cleaned, inspected, and rebuilt duct systems in Old Greenwich estates from the 1920s colonials along Shore Road to the mid-century builds near Binney Park. Two decades of duct systems means we’ve seen — and fixed — just about everything. Our 663 verified reviews averaging 4.9 stars reflect that consistency, not a handful of cherry-picked testimonials.
We’re independent Lennox specialists, not a manufacturer-authorized dealer. That distinction matters: we source genuine Lennox OEM parts for critical components like dampers, sensors, and drain pans, but we’re not bound to factory service protocols that ignore what salt air actually does to ductwork in coastal Fairfield County. We use Rotobrush and Nikro equipment because your air quality isn’t a DIY project — and we pair that with Abatement Technologies and Guardsman sanitizing products when microbial contamination is present.
Common Lennox Air Duct Cleaning Problems We Solve in Old Greenwich
- Salt-air corrosion at heat exchanger connections. The Dave Lennox Signature Collection SLP98V and Elite Series EL296V both use precision-sealed heat exchanger joints that degrade when salt-laden air infiltrates the furnace cabinet. In Old Greenwich homes within a quarter-mile of Greenwich Point, we’ve found orange rust streaking on galvanized connections that creates hidden air leaks — dropping efficiency by 15–20% before homeowners notice any temperature change.
- Mold colonization in fiberglass duct liners. Lennox’s CBX32MV and other air handlers with factory-installed fiberglass liner near return grilles trap moisture from the Sound’s persistent humidity. The wet-dry cycling after nor’easters creates ideal conditions for Aspergillus and Cladosporium growth — the exact species our air quality tests flag in waterfront Old Greenwich properties.
- Rust-jammed damper actuators in multi-zone systems. Large Old Greenwich estates often run Lennox zoning with powered dampers controlling four or more zones. Salt air enters actuator housings through unsealed wiring ports, corroding the internal gear trains. We’ve replaced dozens of these in colonial-style homes where the original 1960s duct layout was retrofitted with modern Lennox zoning.
- Standing water in evaporator coil drain pans. The Merit Series ML14XC1 and higher-efficiency Lennox condensers generate substantial condensate during Old Greenwich’s humid summer months. Salt-accelerated corrosion clogs drain lines, causing overflow that backflows into ductwork — particularly in systems with crawlspace or basement returns where drainage slopes are marginal.
- Degraded flex-duct collars at coastal properties. Original flex duct in 1950s–1970s Old Greenwich builds uses insulation that salt air breaks down over time. The result: collapsed runs, kinked connections, and fiberglass particulate blowing through Lennox supply registers. Our video inspection catches this before it becomes an indoor air quality emergency.
Lennox Service in Old Greenwich: What Local Conditions Mean for Your Equipment
In Old Greenwich homes within a quarter-mile of Greenwich Point, return-air grilles and flex-duct collars consistently show a distinctive salt-rust pattern — orange streaking on galvanized metal and degraded insulation — that our techs use as a telltale sign of coastal moisture infiltration, a condition almost nonexistent in inland Greenwich neighborhoods like Riverside or Cos Cob. This isn’t cosmetic. That rust indicates chloride ions have penetrated the zinc galvanizing layer, meaning the underlying steel is actively corroding. For Lennox owners, this translates to premature failure of duct-mounted sensors, compromised static pressure readings that confuse variable-speed blowers, and eventual holes in return trunks that pull unfiltered attic or crawlspace air directly into the living space.
The onshore moisture cycle here — wetting from nor’easter-driven humidity, partial drying during fair weather, repeated weekly through spring and fall — keeps duct interiors damp enough for microbial growth even when thermostats read normal. We’ve tested Lennox systems in Old Greenwich that showed 70%+ relative humidity inside ductwork while the home maintained 45% at the thermostat. That hidden moisture gap is what destroys fiberglass liners and corrodes sheet metal from the inside out.
Last spring we serviced a 1950s colonial on Soundview Avenue, within sight of Greenwich Point, with a 2005 Lennox G61MPV furnace. The homeowner complained of musty odors in second-floor bedrooms. Our video inspection revealed heavy mold colonies inside the fibrous duct liner of the main return trunk, sustained by salt-laden air drawn from an unconditioned crawlspace. We removed the affected liner, sterilized the duct, and replaced 35 feet of corroded flex duct with sealed, insulated runs. Air quality follow-up tests scored zero mold spores.
Lennox Models & Products We Service in Old Greenwich
We work on the full Lennox residential and light-commercial lineup: Dave Lennox Signature Collection (SLP98V, XC25), Elite Series (EL296V, CBX32MV), Merit Series (ML296V, ML14XC1), and Legacy Series including the G61MPV and G50UI furnaces common in 1990s–2000s Old Greenwich renovations.
For critical repairs, we stock genuine Lennox OEM dampers, sensors, and drain pans for same-day replacement. Ductwork repairs pair quality aftermarket flex duct and mastic sealants with OEM-spec fasteners — the right material for the application, not whatever’s cheapest. Every repair-vs-replace evaluation we provide accounts for the accelerated corrosion timeline that Old Greenwich’s salt air imposes. A 15-year-old Lennox system here often shows damage comparable to 25 years inland.
Our service van carries Rotobrush brush-and-vac systems for mechanical cleaning, Nikro HEPA-negative-air equipment for containment during mold remediation, and video inspection gear that lets you see inside your ducts before we start and after we finish.
Lennox Service Pricing in Old Greenwich
Standard Lennox air duct cleaning in Old Greenwich ranges from $450 for compact single-zone systems to $1,200 for large multi-zone estates with extensive corrosion remediation. Most residential jobs fall in the $650–$900 range.
| Service Component | Price Range |
|---|---|
| Standard air duct cleaning (single zone, up to 15 vents) | $450–$650 |
| Multi-zone estate cleaning (25+ vents, complex layout) | $850–$1,200 |
| Video inspection (before/after documentation) | $150–$250 |
| Flex duct repair/replacement (per linear foot) | $18–$35 |
| Duct sealing with mastic and metal tape | $300–$600 |
| Air quality testing and sanitizing treatment | $250–$450 |
What drives cost: system size, accessibility of duct runs through unconditioned spaces, extent of salt-air corrosion requiring repair, and whether mold remediation is needed. Our free estimate includes a full video inspection — you’ll see exactly what we’re quoting before any work begins. Call (866) 531-5603 to schedule; estimates are free and we’re typically in Old Greenwich within 48 hours.
Serving Old Greenwich, CT — Our Local Coverage Area
We’re based in the Old Greenwich 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 Old Greenwich
No. The SLP98V’s sealed combustion chamber and heat exchanger remain intact during standard duct cleaning. We access the supply and return trunks through existing register openings and the air handler cabinet — no heat exchanger disassembly needed. If our video inspection reveals corrosion at heat exchanger connections, we’ll document it and discuss repair options separately. Call (866) 531-5603 if you’re noticing efficiency drops or unusual odors.
Yes — properly cleaned ductwork actually reduces static pressure by removing debris that narrows airflow. However, original galvanized ductwork in Old Greenwich colonials often has internal corrosion scaling that cleaning can disturb. We measure static pressure before and after, and if your Lennox variable-speed blower (common in CBX32MV or EL296V pairings) approaches its upper limit, we’ll flag duct repair or partial replacement before it stresses the motor. Call (866) 531-5603 for a pressure assessment with your free estimate.
Absolutely — video inspection is standard on every Old Greenwich job. You’ll see the salt-rust pattern on metal components, any mold growth in fiberglass liners, and collapsed flex duct sections in real time. The after-cleaning video confirms debris removal and documents sealed repairs. We archive these recordings for warranty and insurance documentation. Call (866) 531-5603 to schedule your inspection.
Yes — this is one of the most common failure points we find in coastal Fairfield County. The combination of garage air infiltration (often humid and carrying automotive exhaust particulates) with Old Greenwich’s ambient salt moisture creates saturated liner conditions that standard fiberglass can’t shed. We typically recommend liner removal and replacement with sealed metal duct or closed-cell foam insulation in these applications, followed by Abatement Technologies sanitizing treatment. Call (866) 531-5603 for a moisture assessment.
Yes — that’s a classic symptom of microbial growth in damp ductwork, amplified by the chloride content in coastal air. After nor’easters, Old Greenwich’s elevated humidity lingers in unconditioned spaces where ductwork runs, and if your Lennox evaporator coil drain pan or condensate line has any blockage, standing water accelerates the problem. Our process: video inspection to locate the source, mechanical cleaning with HEPA containment, then sanitizing with Guardsman products and verification testing. Call (866) 531-5603 — same-day response is often available for odor emergencies.
Service Areas Near Old Greenwich
We regularly service Lennox systems throughout coastal Fairfield County, including Stamford to the northeast, Riverside just west along the Sound, and Bridgeport and New Haven for larger commercial properties. Each area presents different duct challenges — Stamford’s urban density, Riverside’s similar but slightly less acute salt exposure, Bridgeport’s mixed-era housing stock — but Old Greenwich’s combination of large estates, original galvanized ductwork, and direct Sound exposure remains uniquely demanding on Lennox equipment.
Book Your Lennox Service in Old Greenwich Today
If you haven’t thought about what’s inside your ducts, your ducts have been thinking about it for you. Matthew Gonzalez leads every job personally, bringing 20 years of hands-on experience and industrial-grade Rotobrush and Nikro equipment to your Old Greenwich home. Same-day appointments are often available for urgent odor or airflow issues. From cleaning to sealing to sanitizing — one call covers your entire duct system. Call (866) 531-5603 now for your free estimate.
Written by Matthew Gonzalez, Owner at Elite Air Duct Cleaning Service Connecticut, serving Old Greenwich and coastal Fairfield County since 2004.