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 Richardson, TX | Hollis Air Duct Dallas
We offer Air Duct Cleaning in Richardson for Lennox ductwork, and the job here is different from other North Texas cities. Richardson’s Telecom Corridor boom left thousands of homes with builder-grade Lennox flex ducts that have never been opened since the drywall dust settled in the 1980s and 1990s. We’re an independent Lennox service provider, not factory-authorized, which means we answer to you, not a corporate warranty department. Call (361) 309-6223 to talk directly with our crew about what’s moving through your ducts.
Why Richardson Residents Choose Us for Lennox Service
Roy Castellanos, our owner, trained on HVAC and air systems at Los Angeles Trade-Technical College before the work brought him to Dallas, and he’s been running jobs across Richardson for several years now. What that means for you is simple: we’ve seen Lennox systems in Canyon Creek, in the ranch homes off Arapaho, in the two-story brick veneers that line the Telecom Corridor. We know what those ducts look like inside after thirty years. We use professional-grade equipment from Rotobrush and Nikro for the cleaning, and we stock OEM-grade flex duct and mastic for the repairs. No factory authorization, but real field experience with Lennox equipment in Richardson homes.
Our Lennox sales & service expertise covers the full product range, and we bring that to every Richardson job. Written price before work starts. Background-checked, uniformed techs. A 365-Day Done Right Promise in writing. That’s the standard.
Styles & brands we work with




Common Lennox Air Duct Cleaning Problems We Solve in Richardson
- Builder-grade flex duct that’s sagging and full of debris. In Telecom Corridor-era homes, original Lennox flex runs were stapled up in a hurry. Thirty years of attic heat softens the plastic, the runs sag, and every bit of drywall dust and construction debris settles in the low spots. We clean the full run, then re-hang it properly.
- Dust and pollen packed onto Lennox Merit Series evaporator coils. Richardson summers push AC systems hard from May through October. Merit Series air handlers pull North Texas pollen and dust across the coil constantly, and a dirty coil makes the whole system work harder while blowing that grit back into your rooms.
- Mold in ducts after spring storms. Leaky return ducts pull moisture during Richardson’s frequent spring downpours. When that damp air sits in a dark flex-duct run connected to a Lennox air handler, mold follows. We test, clean, and seal the leak so it stops happening.
- Bird and rodent nests in unused bath exhaust ducts. In Canyon Creek and similar attic-HVAC neighborhoods, builders often ran bath exhausts into the attic. Birds and squirrels find their way in. We remove the nest, clean the duct, and install a proper vent cap so it’s closed for good.
- Restricted airflow in upstairs rooms. Two-story Richardson homes with a single Lennox system in the attic often have weak airflow on the second floor. The usual cause is collapsed flex runs or a return plenum that’s pulling attic air through gaps. We video-inspect, show you the proof, and fix exactly what’s restricting the system.
Lennox Service in Richardson: What Local Conditions Mean for Your Equipment
Richardson’s Telecom Corridor didn’t grow slowly. From the 1980s through the 2000s, subdivisions went up fast to house the tech workforce, and builders used whatever was cheap and available. That meant miles of builder-grade Lennox flex duct installed in attics, sealed with tape that dries out and fails, often with construction debris left inside because nobody was checking. Homes in older Dallas neighborhoods with rigid metal ducts don’t have this problem. But in Richardson, if your home was built during that boom and the ducts have never been cleaned, you are almost certainly circulating drywall dust that was there the day your house was finished. Add thirty years of pollen, pet dander, and the occasional moisture intrusion, and a straightforward duct cleaning turns into a real restoration job. That’s the work we do most often here, and we do it with video inspection so you can see what’s actually inside before and after.
Lennox Models & Products We Service in Richardson
We work on duct systems connected to every Lennox line: the Merit Series, the Elite Series, and the Signature Series, including units sold under the Dave Lennox Signature Collection name. Most Richardson homes from the telecom era run Merit or Elite air handlers, so we carry OEM-grade flex duct, hangers, plenum tape, and mastic sealant on the truck for same-day repairs. When an older duct system has multiple leaks or collapsed runs, we don’t auto-replace it all. We run a video inspection and leak test first, then give you an honest repair-versus-replace number. If high-quality aftermarket insulation or vent caps save real money without cutting quality, we will tell you that too. For full details on our service area, see Richardson service area.
See the difference
Before
After
Before
After
Before
AfterLennox Service Pricing in Richardson
Whole-system air duct cleaning in Richardson typically runs $350 to $650 for a single-family home, depending on the number of returns, the condition of the flex runs, and whether we’re also cleaning the evaporator coil. Duct sealing with mastic adds $150 to $300 for the typical two-story. A flex duct repair with re-hanging usually falls between $100 and $400, depending on how many runs are sagging and whether we need to replace sections. We write the final number down before we touch anything, and that number does not move. Call (361) 309-6223 for a free estimate on your specific system. The estimate includes a video look at your ducts so you’re not guessing.
Serving Richardson, TX - Our Local Coverage Area
We’re based in the Richardson 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 Richardson
Because most telecom-era Richardson homes were built fast with builder-grade Lennox flex ducts that were never cleaned after construction, while older Dallas neighborhoods typically have rigid metal ducts that don’t trap debris the same way. Flex duct’s ribbed interior catches drywall dust, and thirty years of that buildup plus daily use means most Richardson systems are far dirtier than their Dallas counterparts. If you’ve never had yours cleaned, call (361) 309-6223 and we’ll show you the inside on video.
When a North Texas storm rolls through Richardson, leaky return ducts can pull damp outside air straight into the system, where it gets distributed across the cold coil and into the dark flex runs. Mold establishes in days. We clean the entire run with a negative-air machine and seal the leaks with mastic so the next storm doesn’t repeat the problem. For an inspection, call us at (361) 309-6223.
Yes, in most cases. We access the coil through the air handler’s service panel and clean it in place with professional-grade equipment. That keeps the refrigerant lines intact and avoids the cost of pulling the coil. If the buildup is too heavy for in-place cleaning, we’ll tell you before we touch anything, with the cost written down first. Call (361) 309-6223 for an estimate.
Don’t run the fan. A nest in an exhaust duct blocks airflow and can push animal droppings into the living space. We remove the nest, clean the duct run with our Dryer Vent Cleaning in Richardson, and install a proper exterior vent cap so the opening is closed. In Canyon Creek homes with attic HVAC, this is common enough that we check exhaust ducts on every visit. Call (361) 309-6223 and we’ll get it handled.
Yes, and it usually helps noticeably. In two-story Richardson homes, the upstairs unit draws air from returns that are often pulling dust from master suites and hallways, then recirculating it through dirty flex runs. The result is constant dust on upstairs surfaces. Clean ducts plus a sealed return plenum cut that recirculation. For an honest answer about what’s realistic in your home, call (361) 309-6223.
Service Areas Near Richardson
Our team runs jobs across Richardson and the surrounding cities. You’ll find us in Lennox service in Dallas neighborhoods from Oak Cliff to the Design District. We also work regularly in Lennox service in Garland, plus Rowlett, Heath, and DeSoto. If you’re in any of these communities and your Lennox ducts need attention, call us. We’ll be there on time. Clean ducts, straight answers, that’s the whole job.
Book Your Lennox Service in Richardson Today
Call (361) 309-6223 for a free estimate on your Lennox duct cleaning or repair in Richardson. Our phones are answered by a live person, and we’ll get you on the schedule with a written price before any work begins. If something isn’t right within a year, our 365-Day Done Right Promise means we come back and make it right at no charge.
Written by Roy Castellanos, Owner at Hollis Air Duct Dallas, serving Richardson since 2004.