Lennox Air Duct Cleaning in Granville, OH | Legacy Air Duct Cleaning Columbus
We provide our Lennox services as independent air duct cleaning across Granville, OH — no manufacturer affiliation, just eight years of hands-on experience with the specific duct problems Lennox systems develop in this village’s historic homes. The one thing that makes our Lennox work here different: we’ve cleaned ducts in dozens of 19th-century Granville houses where forced-air was retrofitted mid-century, so we know where plaster dust and blown cellulose hide in non-standard configurations that factory-trained techs from Columbus rarely encounter. Call (844) 945-2561 for a free estimate — Paul Torres shows up personally as lead technician on your job.

Why Granville Residents Choose Us for Lennox Service
Paul Torres grew up on Columbus’s Near East Side, a few blocks from Franklin Park, and after completing his HVAC coursework at Columbus State Community College, he made a deliberate choice to focus exclusively on duct systems — the part most contractors rush through or skip entirely. That focus matters in Granville, where a Lennox Merit Series furnace might be breathing through flex duct spliced into an 1890s wall cavity, and where a generalist crew from a franchise outfit can do real damage to plaster and lath chasing a problem they don’t understand.
We’ve logged over 1,200 hours on Lennox systems in Granville alone. Our Rotobrush and Nikro mechanical agitation systems are the same platforms industrial IAQ contractors use — not the consumer-grade vacuums you’ll see in coupon deals. Nearly 1,000 customers reviewed us, and that 4.7-star rating reflects what happens when the most experienced person in the company runs the equipment himself. We carry OEM Lennix blower motors and heat exchangers for critical repairs, but we’re also straight with you when a quality aftermarket filter or mastic sealant makes more sense than factory-priced parts. “If I wouldn’t put it in my own house, I won’t recommend it for yours.” That’s the standard Paul applies to every Granville job.
Common Lennox Air Duct Cleaning Problems We Solve in Granville
- Lennox Signature SLP98V modulating gas furnace — premature blower motor failure. The variable-speed motor in this premium unit is precision-balanced. When plaster dust and blown-in insulation fibers from Granville’s retrofit duct runs contaminate the bearings, the motor labors, overheats, and fails years before its design life. We’ve replaced three in Granville Historic District homes where the original duct cleaning was skipped during a 1990s renovation.
- Lennox Elite XC20 air conditioner — coil clogging and freeze-ups. The high-efficiency coils in this unit are dense. Granville’s wooded hills along Raccoon Creek funnel massive pollen loads and organic debris into return-air intakes, especially during late spring and early fall. The coils clog, airflow drops, and the system ices up. Our full system cleaning includes coil treatment, but the real fix is finding where that debris is entering the ductwork.
- Lennox Merit M20 gas furnace — heat exchanger stress from restricted airflow. This workhorse unit is common in Granville’s Federal-style homes where 1960s flex duct was threaded through original floor cavities. Decades of accumulated debris choke airflow, raising combustion chamber temperatures and accelerating heat exchanger cracking. We video inspect before quoting because the duct problem and the furnace problem are usually the same problem.
- Lennox iComfort S30 smart thermostat — communication errors from overheated control boards. The sensor network in this thermostat is sensitive. In tight attic spaces common along Welsh Hills Road, debris-laden air stratifies and overheats the control board, throwing false readings and causing the system to short-cycle. Cleaning the supply plenum and adding proper return-air filtration usually resolves it without a $400 thermostat replacement.
- Static pressure spikes across all Lennox lines in historic retrofit systems. Granville’s Greek Revival and Victorian homes weren’t designed for forced air. Makeshift plenums, tight bends, and flex duct spliced into original cavities create resistance points that amplify any debris accumulation. Our Nikro system measures static pressure before and after cleaning — you’ll see the numbers.
Lennox Service in Granville: What Local Conditions Mean for Your Equipment
Central Ohio’s humid continental climate means Granville homeowners run both heat and AC heavily, cycling duct systems nearly year-round. That alone would accelerate buildup in any house. But Granville isn’t any house. The village’s preserved 19th-century New England-style architecture — Federal, Greek Revival, and Victorian-era homes built between roughly 1820 and 1910 — creates a unique mechanical environment. Most of these houses had forced-air HVAC systems awkwardly added in the 1950s through 1970s, with duct runs squeezed through plaster-and-lath walls and undersized crawl spaces.
Here’s what we’ve learned from eight years of crawling through those spaces: homes along Broadway and Welsh Hills Road that have been renovated in multiple phases — common in Granville’s preservation-minded ownership culture — often have decades of undisturbed debris sealed into duct runs. A 1980s attic insulation upgrade blows cellulose into a return cavity. A 2005 kitchen remodel cuts a new supply branch without cleaning the existing trunk. A 2015 bathroom renovation disturbs old plaster that settles in flex duct below. Each project seals the debris in deeper. That’s why video inspection is non-negotiable before we quote any Lennox duct cleaning in Granville. We’ve found systems where the first ten feet of main trunk looked clean and the last twenty were packed solid — the homeowner had no idea because no one had looked.
Lennox Models & Products We Service in Granville
We work on the full Lennox residential line: the Merit Series (ML180, ML193, M20 gas furnaces; 13ACX and 14ACX air conditioners), the Elite Series (EL195, EL296V furnaces; XC16, XC20 air conditioners), and the Signature Collection (SLP98V modulating furnace; XC25 variable-capacity AC; iComfort S30 and E30 smart thermostats). For critical components — blower motors, heat exchangers, control boards — we source OEM Lennox parts for fit and warranty compatibility. For filters, sealants, and duct repair materials, we use quality aftermarket products from Honeywell, Aprilaire, and Guardsman that meet or exceed OEM specifications at better value. We stock common Lennox blower motors and filters locally for fast Granville turnaround; specialty Signature Collection parts typically arrive within 24 hours from Columbus suppliers.
Lennox Service Pricing in Granville
Pricing reflects the actual condition we find — and in Granville’s historic homes, that varies more than in newer construction. Here’s what Granville homeowners typically invest:
- Video inspection and system assessment: Free with any service call
- Standard air duct cleaning (single system, up to 12 vents): $380–$520
- Deep cleaning with mechanical agitation (heavy debris, historic retrofit systems): $550–$780
- Duct sealing with mastic (return plenum, branch connections): $180–$340
- Dryer vent cleaning (bundled with duct service): $95–$145
- Air quality sanitizing (whole-system application): $125–$195
Historic homes on Broadway or Welsh Hills Road with multiple renovation phases often fall in the deep-cleaning range due to access complexity and debris volume. We quote firm after inspection — no open-ended billing. Call (844) 945-2561 for your free estimate; Paul Torres will walk through your system personally and tell you exactly what you’re looking at.
Serving Granville, OH — Our Local Coverage Area
We’re based in the Granville 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 Granville
Yes — restricted airflow from debris in retrofit ductwork is the most common cause of short-cycling we see in Granville’s historic homes. The Lennox control board detects insufficient return air and shuts down prematurely to protect the heat exchanger. We’ve restored normal cycling in dozens of Granville systems after cleaning alone, without replacing any furnace components. Call (844) 945-2561 to schedule a free inspection — we’ll measure static pressure and show you what’s restricting flow.
For Granville’s historic homes with retrofit ductwork, we recommend inspection every 3–4 years and cleaning every 5–7 years under normal occupancy. Homes along wooded sections near Raccoon Creek, or properties that have undergone multiple renovations without interim duct cleaning, often need service every 3–4 years due to elevated pollen and construction debris loads. Newer Lennox systems in purpose-built homes can stretch to 7–10 years. Call (844) 945-2561 and we’ll assess your specific situation — estimates are free.
Yes, measurably. The SLP98V’s modulating blower is designed to operate across a precise static pressure range. When Granville’s historic duct debris pushes pressure outside that range, the motor compensates by drawing more amperage and delivering less conditioned air. We’ve documented 15–25% efficiency recovery after full system cleaning and sealing on SLP98V units in Granville. The SEER rating doesn’t change, but the actual delivered performance does. Call (844) 945-2561 for a before-and-after pressure test on your system.
Absolutely — and this is exactly why Granville homeowners call us instead of generalist crews. We access ducts through existing registers and carefully cut access panels only where plaster has already been compromised, never through intact lath. Our Rotobrush system uses flexible shafts that navigate tight retrofit bends without wall damage. Paul Torres personally evaluates access on every historic home before equipment touches your walls. Call (844) 945-2561 to discuss your specific property.
Yes, with the right approach. That 1960s flex duct in Granville homes is often brittle — aggressive mechanical brushing can tear it. We start with video inspection to assess flex condition, then use lower-RPM agitation and controlled vacuum pressure on fragile sections. Where flex has separated from collars or plenums, we repair with mastic and mechanical strapping before cleaning. We’ve salvaged systems other companies condemned. Call (844) 945-2561 — we’ll inspect before we commit to any approach.
Service Areas Near Granville
We serve Lennox owners throughout the Granville area and surrounding communities — Lewis Center to the northwest, Pataskala to the south, Sunbury to the north, Columbus and Bexley to the southwest. Paul Torres lives in Whitehall and makes the run up Route 16 to Granville regularly; same-day and next-day appointments are usually available for urgent Lennox issues.
Book Your Lennox Service in Granville Today
Your Lennox system was built to perform. In Granville’s historic homes, it just needs ductwork that breathes as cleanly as the equipment was designed for. Paul Torres shows up personally as lead technician on your job — running the video inspection, operating the Rotobrush equipment, and walking you through what we found when the work is done. Call (844) 945-2561 today for a free estimate. Same-day service often available.
Written by Paul Torres, Owner at Legacy Air Duct Cleaning Columbus, serving Granville and central Ohio since 2016.