Whole-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.
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AfterLennox Air Duct Cleaning in Dallas, CA | Kestrel Air Duct Cleaning
We’re Kestrel Air Duct Cleaning, an independent Lennox duct specialist serving homes across Dallas. We clean and repair Lennox flex and metal duct systems in slab-on-grade and pier-and-beam houses throughout the Metroplex. The short answer: most Lennox air duct cleaning jobs in Dallas run between $450 and $850 for a full system, depending on home size and how much attic heat has degraded the ductwork. Call (469) 972-3151 for a written quote before we touch a single vent.
Dale Whitmore, our owner, spent his early twenties on general HVAC maintenance before realizing the duct side of every system is where the neglect lives. He got his formal training at Los Angeles Trade-Technical College, then spent over a decade cleaning ducts across Los Angeles. Now he brings that same hands-on approach to Dallas homes. If you’re looking for Lennox sales & service expertise combined with real duct knowledge, you’ve found the right crew.
Why Dallas Residents Choose Us for Lennox Service
We know Lennox systems. Not from a brochure. From thousands of feet of scoped flex and metal trunk lines running through Dallas attics that hit 140°F in July and through pier-and-beam crawlspaces in Oak Cliff that haven’t been opened since the Reagan administration. That matters because Lennox equipment has specific failure patterns here, patterns tied directly to Blackland Prairie clay and slab construction you won’t find in a generic service manual.
We’re local to Dallas service area work, which means we’ve seen what expansive clay soil does to duct boots in Garland slab ranches and what attic heat does to Lennox flex duct in Mesquite. We stock OEM-equivalent Lennox flex duct, mastic, and boot collars from trusted aftermarket suppliers, so repairs don’t stall waiting on a parts truck from Ohio. Every technician is background-checked and uniformed. Every job gets a written price before work starts and a 365-Day Done Right Promise in writing. That’s the Kingswell Way, and it’s been our operating code since 2004.
Common Lennox Air Duct Cleaning Problems We Solve in Dallas
- Heat-embrittled Lennox flex duct from the 1990s and 2000s. Dallas attic temperatures routinely hit 140 to 160°F during summer. That heat bakes the outer jacket on older Lennox flex runs until it cracks, then the inner foil liner delaminates and sheds fiberglass particles straight into your airstream. We see this constantly in Garland and Mesquite slab ranches where the ductwork has never been replaced.
- Boot separation from drywall ceilings caused by clay movement. Blackland Prairie clay expands and contracts with our wet-dry cycles. In slab-on-grade homes, that movement pulls Lennox return boots loose from the subfloor drywall, letting unconditioned attic air bypass the filter and coat the blower wheel and evaporator coil. We treat every boot as a potential air-leak site before we start brushing.
- Rusty collars and unsealed longitudinal seams on Lennox metal trunk lines. Older Oak Cliff and East Dallas pier-and-beam homes often have metal trunk lines with seams that were never properly sealed. These leak conditioned air into crawlspaces, which drops static pressure and pulls soil gases and allergens back into the living space through return leaks.
- Collapsed flex duct from oversized Lennox heat pumps on undersized returns. 1970s and 1980s Dallas homes frequently paired Lennox heat pumps with returns that were too small from day one. High static pressure collapses flex duct over time and accelerates dust compaction inside the liner. Standard brushing can’t fully remove that layer.
- Fiberglass-loaded supply boots in slab homes. When clay movement cracks the mastic sealing a Lennox boot to the subfloor, the system pulls attic air loaded with fiberglass particles from degrading duct wrap directly into bedrooms. A cleaning ticket almost always converts to a sealing or partial replacement job once we get a camera scope in.
Lennox Service in Dallas: What Local Conditions Mean for Your Equipment
Dallas sits on Blackland Prairie Vertisol clay that expands and contracts dramatically with seasonal moisture changes. In slab-on-grade homes, which dominate the Metroplex, that movement creates a ring-shaped crack pattern in the subfloor drywall around duct boots. We’ve never seen this failure in markets with stable soils or basement ductwork. It’s a Dallas signature. So when we clean a Lennox system in Garland, Richardson, or Mesquite, we don’t assume a boot is sealed just because it looks fine from the living room. We scope it from the attic side and check for separation.
That’s why our Lennox service in Brooklyn colleagues deal with entirely different failure modes than we do here. Their ductwork lives in basements. Ours bakes in attics. Different city, different heat load, different clay behavior. The Lennox equipment is the same. The failure patterns are not.
Our crew was called to a 1985 slab ranch in Garland where the homeowner complained about fiberglass dust on the furniture every time the Lennox heat pump kicked on. A camera scope revealed the clay movement had pulled the master-bedroom supply boot three-quarters of an inch away from the drywall ceiling, and the Lennox flex collar had torn its inner liner. We removed the failed boot, sealed the gap with mastic and mesh, replaced the torn section with OEM-equivalent R-8 flex duct, and the particle count in the return dropped immediately after we cleaned the blower and evaporator coil. That’s a typical Wednesday for us.
Lennox Models & Products We Service in Dallas
We service the full Lennox lineup across Dallas homes: Merit Series units like the ML14XC1 and ML13KC1, Elite Series equipment including the EL16XC1 and EL18XPV, and Dave Lennox Signature Collection systems like the SL28XCV and SL25KCV. We also handle Lennox Complete Comfort air handlers and coils paired with any of these condensing units.
On parts, here’s our honest approach. Many original Lennox duct components from the 1990s and 2000s are discontinued or priced like aerospace hardware. We use OEM-equivalent flex duct, mastic, and boot collars from trusted aftermarket suppliers, because the alternative is charging you double for a part that performs the same job. When we find crushed or heat-embrittled Lennox flex, we recommend targeted replacement over cleaning. Cleaning shredded liner just redistributes fiberglass particles through the rest of the system.
Lennox Service Pricing in Dallas
Most Lennox air duct cleaning jobs in Dallas run between $450 and $850 for a full system. Smaller single-story homes with 8 to 10 vents typically land in the $450 to $600 range. Larger two-story homes or systems with multiple trunk lines and 14+ vents run $650 to $850. Pier-and-beam homes in Oak Cliff or East Dallas often cost slightly more because the crawlspace duct runs take longer to access and clean properly.
What drives the price: the number of vents and trunk lines, whether the ductwork is attic or crawlspace, and how much debris has baked onto the interior walls from Dallas’s nine-month AC season. Every estimate includes a camera scope of the main trunk line, a written price before work starts, and our 365-Day Done Right Promise in writing. Call (469) 972-3151 for an exact quote. Estimates are free.
Serving Dallas, GA - Our Local Coverage Area
We’re based in the Dallas 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 Dallas
An 8-year-old Lennox system means the flex duct has already survived eight Dallas summers, each one baking your attic at 140°F to 160°F for months. The outer jacket on flex duct degrades from UV exposure and heat cycling, not from age alone. We’ve replaced 10-year-old flex in attics that looked like it was 30 years old, and the culprit was heat, not mileage. If you see fiberglass dust on furniture or notice rooms that never quite reach the thermostat setpoint, call (469) 972-3151 and we’ll scope the ducts to see what’s actually happening.
Cleaning alone usually won’t fix it if the fiberglass is coming from a torn inner liner or a cracked boot seal. That’s a physical failure, not a debris problem. We need to locate the failed connection or liner, repair or replace the damaged section, then clean the system so the particles already in the ductwork don’t keep circulating. We’ve done this exact job in Oak Cliff pier-and-beam homes where the underfloor ducts had separated and were pulling insulation fibers into the return. Call (469) 972-3151 and we’ll bring a camera scope to see what’s happening in your crawlspace.
Because Dallas runs air conditioning roughly nine months a year, and mountain cedar pollen from December through February blankets North Texas with counts that sometimes exceed 30,000 grains per cubic meter. That pollen gets drawn into the return air and it’s fine enough to slip through standard filters. Add in attic dust bypassing a loose return boot, and the coil loads up fast. We find this all the time on Lennox slab-coil air handlers. The fix is sealing the return path plus proper filtration, not just cleaning the coil every year.
We use OEM-equivalent flex duct, mastic, and boot collars from trusted aftermarket suppliers, not factory Lennox-branded parts. Many original Lennox duct components are discontinued or cost-prohibitive, and the aftermarket equivalents we source meet the same R-value and durability specifications. The important thing is that the repair is done right and sealed properly, not whose name is stamped on the box. Every repair is covered by our 365-Day Done Right Promise in writing.
Every 3 to 5 years for most Dallas homes, but sooner if you’ve had renovation work, a major dust event, or you’re seeing visible particle buildup on vents. Homes near new construction in growing areas like Frisco or McKinney often need cleaning sooner because of the dust load. The honest answer is it depends on your home and your system. Call (469) 972-3151 and we’ll give you a straight answer based on what a camera scope actually shows, not a calendar.
Service Areas Near Dallas
We serve homes throughout the Dallas Metroplex, including the slab ranch tracts of Garland, Mesquite, Richardson, Irving, and Grand Prairie, plus the pier-and-beam neighborhoods of Oak Cliff, East Dallas, and Lakewood. Each area has its own duct failure patterns, and we know what to look for in each. Our Lennox service in Cleveland team handles similar work for homeowners in that market, just as our Brooklyn crew does for that region.
Book Your Lennox Service in Dallas Today
If your Lennox system is moving fiberglass, leaking attic air, or just hasn’t been cleaned since the last administration, call (469) 972-3151. We answer the phone with a live person, we show up when we say we will, and the price we quote is the price you pay. Clean ducts, straight answers, price upfront - that’s the whole deal.
Written by Dale Whitmore, Owner at Kestrel Air Duct Cleaning, serving Dallas since 2004.