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.
Lennox Air Duct Cleaning in Pomona, CA | Cardinal Air Duct West Covina
We provide independent Lennox air duct cleaning service across Pomona, and the one thing that makes our work here different is simple: we treat your Lennox system as part of your house, not a standalone machine. Pomona’s 1940s – 1960s homes have ductwork that runs through crawl spaces and floor registers that most cleaners never open. Call (424) 688-1845 for a free estimate, and we’ll bring the equipment to handle Lennox systems in older Pomona homes the right way.

We are not a Lennox authorized dealer, but we are the team Pomona homeowners trust when their Lennox equipment needs real attention. Our experience is earned from years of working in Pomona’s unique housing stock. Whether you have a G40 furnace, an XC21 air conditioner, or a CBX32MV air handler, we know how Pomona’s conditions affect it. We are part of the Relay Home Co. family, founded 2005, and every job comes with a written price before work starts and our 365-Day Done Right Promise.
Why Pomona Residents Choose Us for Lennox Service
Our crew is led by Omar Haddad, born and raised in Los Angeles and now running Cardinal Air Duct West Covina. He attended Citrus College in Glendora and has spent nearly two decades in attics and crawl spaces from West Covina to Pomona. That local experience means we know what a Lennox system in Pomona actually faces: fine dust, old ductwork, and the occasional rodent in a return line.
As an independent provider, we offer unbiased service without the overhead of factory authorization, focusing solely on what works for your system and budget. We stock common Lennox parts and use OEM parts for critical components like heat exchangers and control boards, while offering quality aftermarket options for filters and capacitors when they save you money. Our techs are background-checked, uniformed, and arrive with professional-grade equipment from Rotobrush, Nikro, and Abatement Technologies.
Styles & brands we work with




Common Lennox Air Duct Cleaning Problems We Solve in Pomona
These are the problems we repeatedly find in Pomona homes with Lennox equipment:
- Cracked heat exchangers in G40/G50 furnaces from thermal stress during Pomona’s cold winter mornings. When temperatures swing quickly, the metal expands and contracts fast. We inspect for hairline cracks and advise honestly on repair versus replacement. A cracked heat exchanger can leak carbon monoxide, so this is a safety issue, not just a comfort one.
- Clogged evaporator coils in XC21 units due to fine dust from Santa Ana winds bypassing filters. Pomona’s dry, windy season pushes silt into air handlers. A clogged coil reduces cooling and raises energy bills. We clean coils carefully and check the filter setup so it doesn’t happen again in a month.
- Worn blower motor capacitors in CBX32MV air handlers from frequent cycling in dry, dusty conditions. When the system runs long cycles in summer, capacitors fail sooner. We test capacitor health during a cleaning and replace them before they strand you on a hot afternoon.
- Leaking duct connections at floor registers in crawl-space homes, pulling rodent debris into Lennox systems. Unsealed joints in Pomona’s crawl spaces invite dust, insulation, and pests into the airflow. We seal with mastic and verify airflow with a static pressure reading.
- Panned joist returns in older Pomona homes pulling dirt through gaps in floor cavities. These return ducts use the space between floor joists as a chase. When the joists aren’t sealed, the system pulls in crawl-space air. We seal these pans and clean the resulting dust from the blower and coil.
Lennox Service in Pomona: What Local Conditions Mean for Your Equipment
Pomona’s housing stock is full of pre-1960 bungalows and postwar tract homes, many with original galvanized ductwork and the occasional asbestos-paper wrap. Air Duct Cleaning - Pomona is as much about preserving that aging material as it is about improving airflow. If we brush too aggressively, we can tear old paper wrap or loosen joints that were sealed decades ago. That’s why our approach in Pomona starts with a video inspection, so we can see what’s inside before we run a Rotobrush through it. We also check for asbestos-paper tape on old connections; if it’s intact, we leave it alone and clean around it. If it’s damaged, we remove it safely and reseal with mastic, not tape.
In Lincoln Park and Wilton Heights specifically, floor registers often connect to ducts running through unsealed crawl spaces. Decades of construction debris and live rodents end up in those runs. A standard brushing without sealing just pulls more dirt back in. We seal first, then clean, so your Lennox system isn’t breathing crawl-space air.
Lennox Models & Products We Service in Pomona
We service the Lennox models commonly found in Pomona homes: the G40, G50, and G60 gas furnaces, the XC21 and XC16 air conditioners, the CBX32MV air handler, and the SLP98V variable-capacity furnace. For Lennox sales & service in the broader area, our depth of experience with these specific lines means we know their failure points and can often diagnose problems over the phone before we even arrive.
Our parts policy is straightforward: OEM Lennox parts for critical components like heat exchangers and control boards, and high-quality aftermarket options for consumables like capacitors and filters when they offer equal reliability at lower cost. We do not stock parts you don’t need, and we never push a repair that isn’t necessary. If replacement makes more financial sense than repair, we’ll tell you that directly, using the 40% rule as our guideline.
See the difference
Before
After
Before
After
Before
AfterLennox Service Pricing in Pomona
Most standard Pomona Dryer Vent Cleaning and air duct jobs run $450 – $850, depending on the number of vents and the condition of the ductwork. A full cleaning with video inspection, crawl-space sealing, and blower wheel cleaning may run higher if we find rodent contamination or severe buildup. The price is set before we start and does not change at the door. That’s our written price policy, part of The Relay Visibility Guarantee.
You’ll also get a free estimate that includes a video inspection of your ducts, so you see what we see. No surprises on the invoice. If you’d like a precise number for your Pomona home, call (424) 688-1845 and we’ll walk you through it.
Serving Pomona, CA - Our Local Coverage Area
We’re based in the Pomona 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 Pomona
Expect a lot of fine, tan dust from Santa Ana winds and winter inversions that never really leaves Pomona’s air. In a G40 system this old, we typically find a coated blower wheel, a clogged evaporator coil, and return ducts packed with years of pet hair, construction debris, and sometimes rodent droppings if the crawl space is unsealed. We’ll show you the before-and-after video so you can see exactly what was removed. Call (424) 688-1845 if you want a specific inspection of your system.
Yes, and this is something we take seriously in Pomona, where original galvanized ducts are common. We use low-impact rotary brushes and negative-pressure extraction, meaning the loosened debris goes straight into the vacuum, not back into your living room. Before we start, we inspect the duct interior by camera to confirm it can handle cleaning. If we find asbestos-paper wrap that’s intact, we leave it untouched. If it’s damaged, we remove it safely and reseal with mastic.
In Pomona, the most common reason is that the return side of the system is leaking. Air bypasses the filter and enters through gaps in the return duct or panned joist spaces, pulling in crawl-space dirt and Santa Ana dust. In Lincoln Park and Wilton Heights, we routinely find floor register boots that were never sealed to the duct. We fix that at the source: seal the return, then clean the coil and blower.
If the crack is confirmed and your furnace is over 15 years old, the honest answer in Pomona is often replacement. A new heat exchanger in a G40 or G50 can cost enough that it exceeds 40% of a complete new furnace, and the rest of the unit has the same number of years on it. We’ll give you both prices and let you decide, no pressure. Your long-term value matters more than a quick fix.
Yes, and it’s the most valuable thing you can do for a Lennox system in a Pomona crawl-space home. We seal panned joist returns, floor register boots, and any accessible duct joints with mastic, not duct tape, because mastic lasts. Sealing the crawl-space side of the system stops rodents, dust, and insulation from entering the airflow, and it directly improves your Lennox system’s static pressure. Call (424) 688-1845 for a sealing assessment.
Service Areas Near Pomona
From our West Covina base, we serve Pomona and the surrounding communities. That includes Lennox service in West Covina itself, Lennox service in Citrus, plus Whittier, Diamond Bar, and La Puente. You can also check our full Pomona service area page for more details. Most Pomona jobs are scheduled within a day or two.
Book Your Lennox Service in Pomona Today
Call (424) 688-1845 to schedule your Lennox air duct cleaning in Pomona. A live person answers, gives you a clear price range, and books your visit with a trackable arrival window. Clean ducts, straight answers, no surprises on the invoice.
Written by Omar Haddad, Owner at Cardinal Air Duct West Covina, serving Pomona since 2005.