Whole-home duct cleaning
Dryer vent cleaning
Camera inspection
Sanitizing & deodorizingWhole-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.
Why Brooklyn Homeowners Choose Lennox Air Duct Cleaning
Our Air Duct Cleaning services for Lennox systems in Brooklyn cost between $390 and $780 for a full system, depending on the number of returns, the age of the ductwork, and whether the evaporator coil needs cleaning too. We are an independent Lennox service provider, not a factory-authorized dealer, which means we work on the ductwork attached to your Lennox furnace, heat pump, or air handler without pushing you toward equipment you don’t need. Our crews know how Lennox blowers, coils, and iComfort controls behave when ducts get neglected, especially in Brooklyn’s prewar brownstones and newer condo towers where access is tight and original finishes can’t be disturbed. Call (607) 536-9605 to talk through what you’re seeing.
Paul Adeyemi, who leads our Brooklyn crew, picked up the trade at Los Angeles Trade-Technical College before making Brooklyn his professional home base. Years of work across the borough, including plenty of jobs near Prospect Park, taught him that prewar buildings keep a technician honest. He photographs every vent before and after so you never have to take anyone’s word for what happened inside your walls.
Why Trust Mortons Air Duct Brooklyn for Your Lennox Air Duct Cleaning?
Most duct cleaning companies in Brooklyn will clean any system you point at. We prefer to work on Lennox systems because we’ve spent years learning how they fail when the ductwork gets ignored. A Lennox variable-speed blower collects fine dust differently than a single-stage motor. A Lennox iComfort S30 thermostat throws airflow alerts that are almost always caused by clogged returns, not faulty sensors. An evaporator coil on a high-efficiency Lennox unit gums up with Brooklyn cooking grease faster than you’d expect, and that cuts your SEER rating quietly, month after month.
Our technicians arrive in uniform, background-checked, and ready to work around your household. Shoe covers and drop cloths go down before any equipment comes through the door. If a toddler is napping, we work quietly. If you have a dog, we keep the front gate latched and use pet-safe products where available. Paul’s approach is simple: “I will tell you what I see, what it costs, and what I plan to do about it – in that order.” Then we do exactly that.
Every job carries the 365-Day Done Right Promise. If it isn’t right, we make it right. That promise is part of the Cedarwell Care Promise we work under on every single visit, and it’s why we hand you a written price before any work starts. No surprises on the invoice. A photo of the clean-up before we leave, every time.
Styles & brands we work with




Common Lennox Air Duct Cleaning Problems We Fix in Brooklyn
Here are the issues we see most often on Lennox systems in Brooklyn homes, and what’s actually causing them.
- High-pitched whine from the blower on Signature® SLP99V and XC25 units. Fine dust settles on the variable-speed blower wheel and puts uneven load on the bearings. Over time, that dust bakes on and the whine gets worse. Cleaning the blower wheel and the return side of the system typically quiets it down, and it keeps the motor from eating itself prematurely.
- iComfort S30 thermostat showing “reduced airflow” warnings after a filter change. We trace this to clogged return ducts or a partially collapsed flex run far more often than to an actual sensor problem. Brooklyn’s older buildings often have undersized returns to begin with, so even a little restriction trips the alert. Cleaning the return path and resealing leaky joints usually clears the warning without touching the thermostat.
- Evaporator coil fins on high-efficiency Lennox systems gummed with grease and fine dust. Brooklyn kitchens put a lot of airborne oil into the air, and it finds the coil. Once the fins are coated, heat transfer drops, the system short cycles, and your electricity bill climbs. A proper coil cleaning with the right cleaner restores efficiency without damaging the aluminum fins.
- Flex duct runs connected to Lennox air handlers sagging and kinking behind plaster walls. Prewar brownstones and converted lofts often have ductwork squeezed into old chases or tight mechanical closets. Flex duct that’s seen years of humid summers and dry winters loses its shape, and a kink can drop static pressure well below factory spec. We reroute or replace those runs with proper support.
- Dusty smell when a Merit® ML180 or Elite® EL296V furnace first kicks on in the fall. This is usually dust settled inside the ductwork and on the heat exchanger from a summer of disuse. It’s common in Brooklyn homes with old sheet-metal ducts, especially in larger postwar apartment buildings along Ocean Parkway or in southern Brooklyn. Cleaning the supply plenum and the first few feet of supply runs usually removes the smell entirely.
Lennox Parts & Our Repair-vs-Replace Approach
We prefer OEM Lennox filters, access panels, and coil cleaners when the existing parts are intact. Those are the components where the factory engineering actually matters and where an off-brand part can cause fitment or performance issues. But for duct components that Lennox no longer manufactures, like certain transition pieces or damper assemblies on older systems, we use third-party galvanized metal and mastic that meet or exceed SMACNA standards. The metal doesn’t know whose name is stamped on it. The quality of the seal does.
Our default is to repair and reseal ductwork rather than replace it. We replace when the metal is rusted through, when flex duct is crushed beyond airflow recovery, or when the existing layout is so undersized that sealing it would still leave the system starving for air. When we do replace, we tell you why, show you the problem, and give you the written price before we start. Call (607) 536-9605 if you want a technician to walk you through what’s actually happening in your system.
Our Lennox Service Process – Step by Step
Every Lennox duct cleaning visit in Brooklyn follows the same sequence. You’ll know what’s happening at each step before we move to the next one.
- 1
Inspection and diagnosis. We walk the system from return to supply, checking for collapsed flex runs, leaking seams, clogged coils, and blower dust buildup. We note what we find and explain it in plain language. This is where we photograph the before state.
- 2
Written quote before any work starts. One price for the full job, based on what we found during inspection. No per-vent pricing games. No “we found something extra” surprises after the fact.
- 3
Cleaning and repair. We use Rotobrush and Nikro equipment for the ductwork, HEPA-filtered vacuums for homes with original plaster walls or ornate woodwork, and the right coil cleaner for your Lennox evaporator. We reseal accessible joints with mastic, not tape. If flex duct has pulled loose from the plenum, we reconnect and support it properly.
- 4
Testing and verification. After cleaning, we check static pressure and airflow at the returns and supplies. On Lennox systems with variable-speed blowers, we confirm the blower ramps correctly and the iComfort thermostat reads normal airflow.
- 5
Warranty and documentation. Every job is backed by the 365-Day Done Right Promise. We photograph the finished ducts, the coil, and the clean-up before we leave. You get a copy of the before-and-after photos so you can verify the work yourself.
See the difference
Before
After
Before
After
Before
AfterLennox Products We Service & Install in Brooklyn
Our crews service and clean the ductwork on the full Lennox residential lineup: the Signature® Collection (SLP99V variable-capacity gas furnaces, XC25 variable-speed heat pumps), the Elite® Series (EL296V two-stage furnaces, XC16 air conditioners), and the Merit® Series (ML180 furnaces, 13ACX air conditioners). We also work on systems paired with Lennox air handlers and iComfort S30 and E30 thermostats. We stock common OEM Lennox filters and coil cleaners locally for faster turnaround, and we can source discontinued duct components through our regular suppliers.
We Also Service These Brands
While this page is about Lennox repair in Brooklyn, our crews also service Trane and Carrier systems. The ductwork is different on every brand, but the principles of airflow, sealing, and clean coils don’t change. If you have a mixed-brand home – a Lennox furnace with a Carrier condenser, for example – we can handle the whole system.
FAQs – Lennox Air Duct Cleaning Service in Brooklyn
That alert almost always comes from a restriction in the return side of the ductwork, not from a sensor problem or the new filter itself. A clogged return duct, a partially collapsed flex run, or a filter that’s too restrictive for your system can all trip the airflow warning on the S30. We start by checking static pressure at the return, then trace the restriction. It’s usually fixable the same day. Call (607) 536-9605 and we’ll schedule a diagnostic visit.
Clean them before the new coil goes in, and preferably before the refrigerant work is done. Duct cleaning kicks up dust and debris, and you don’t want that debris getting pulled into a brand-new evaporator coil. We recommend scheduling the duct cleaning first, then having the coil replaced. If you’re replacing the coil yourself or through another contractor, let them know the ducts have been cleaned and sealed, and that the coil should be protected during any remaining construction.
It’s common, but it’s not something you should just live with. The smell is dust that settled inside the ductwork and on the heat exchanger during the off-season, and it burns off in the first few heating cycles. That dust is also what your family is breathing. A proper duct cleaning and blower wheel cleaning removes the source of the smell rather than waiting for it to burn off. Call (607) 536-9605 for an exact quote – estimates are free.
Yes, in most Brooklyn homes we can. If the loose connection is at the plenum or at the boot, we can typically reconnect and seal it through the existing access points without opening the wall. If the flex has pulled loose or kinked somewhere in the middle of an inaccessible chase, we may need to open a small access panel or reroute the run. We’ll show you what we found and get your written approval before any wall is opened.
Yes, and we see this regularly in Brooklyn’s older buildings. Leaky ducts let air escape into wall cavities and chases, which forces the blower to work harder and often produces a whistling or rushing sound at the registers. Sealing accessible seams and joints with mastic restores static pressure to factory spec, which lets the variable-speed blower settle down and run at lower RPMs. In a Park Slope brownstone needing Lennox Air Duct Cleaning in Midtown Manhattan, NY style care, we found a collapsed flex section behind a built-in bookcase pulling 40% less air than design. After rerouting a new metal return riser with mastic-sealed seams and cleaning the blower wheel, the thermostat stopped ramping to stage 2 on mild days. That’s what proper duct sealing does.
Full-system Lennox duct cleaning in Brooklyn typically runs between $390 and $780, depending on the number of returns, the accessibility of the ductwork, and whether the evaporator coil needs cleaning as well. Prewar brownstones with ornate plaster medallions or original woodwork may cost slightly more because of the extra care required to protect those finishes. You’ll get a written price before any work starts, and that price doesn’t change mid-job. Call (607) 536-9605 for an exact quote – estimates are free.
No. We are an independent Lennox service provider, not a factory-authorized dealer or warranty station. That’s actually useful for you: we work on the ductwork and airflow side of the system without any incentive to sell you Lennox equipment or push a replacement. Our work focuses on cleaning, sealing, and repairing the ducts and coils, and it does not void your Lennox manufacturer warranty.
Book Your Lennox Service in Brooklyn, NY
If your system needs Lennox repair in New York for noise, airflow warnings, or dust filling the house every time the blower kicks on, we can help. Call (607) 536-9605 and a live person answers, 24/7. We’ll talk through what you’re seeing, give you a written quote, and schedule a visit when it works for your household.
Written by Paul Adeyemi, Owner at Mortons Air Duct Brooklyn, serving Brooklyn since 2005.