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.
Lennox Air Duct Cleaning in Englewood, CO | CleanRun Air Duct Cleaning Littleton
We provide independent Lennox service across Englewood’s mid-century housing stock, from Merit Series furnaces in 1950s ranches to Dave Lennox Signature Collection systems in updated homes. The one thing that makes our Lennox work here different: Englewood’s gravity-furnace retrofit ductwork - oversized trunks with added branch runs - requires camera inspection before any flat price makes sense. Call (720) 315-7291 for a written estimate.
Why Englewood Residents Choose Us for Lennox Service
Tomas Reyes, our owner, grew up in the Bronx and learned the trade at BOCES Suffolk before heading west. He’s been running ductwork jobs in this area since 2013, including plenty of calls in Englewood’s older neighborhoods where the duct liners tell a longer story than the listing price suggests. Our crew knows Lennox equipment cold - the sealed-combustion intakes on EL296V furnaces, the Healthy Climate filter cabinet geometry, where the coil panels bolt on SLP98V air handlers.
We’re an independent provider - not affiliated with or authorized by Lennox - but that independence means we answer to homeowners, not a manufacturer’s regional rep. We carry OEM or genuine-equivalent Lennox-spec blower wheels, coil panels, mastic-rated collars, and sealed-combustion gaskets. For filters, flex duct, and vent caps, we use quality aftermarket where the spec matches. Every job starts with a written price under Haven Standard Clause 1. No exceptions. The camera doesn’t negotiate - it just shows what’s there.
Our Lennox sales & service page covers our full brand depth, but this page is for Englewood specifically.
Common Lennox Air Duct Cleaning Problems We Solve in Englewood

- Secondary heat exchanger systems pulling deep silt loads. Lennox high-efficiency furnaces with sealed combustion intakes - the SL280V, EL296V, SLP98V lines - draw fine Front Range particulates deeper into return and supply runs than old open-combustion units ever did. Englewood’s chinook winds carry that silty dust straight through HVAC intakes. We clean the full supply and return, then photograph every run so you see the difference.
- Healthy Climate filter media collapsing past change intervals. Lennox MERV 10-16 cabinets installed in Englewood homes run hard during wildfire-smoke season when residents seal windows and run HVAC continuously for days. The media mats, bypasses, and dumps dust straight onto the blower and evaporator coil. We inspect the cabinet, replace collapsed media with spec-matched filters, and clean the coil face if it’s loaded.
- Original slab-style evaporator coils choked with bypass dust. Lennox coils in retrofit-supply plenums over old gravity-furnace trunks collect matted dust no upstream filter catches. Airflow drops. The coil freezes in summer. We access the plenum, clean the coil face with negative-pressure extraction, and document before-and-after airflow at the register.
- Flex-duct branches torn at collars in crawl spaces. Englewood’s 1945-1970 ranch homes run duct through unconditioned crawl spaces. Flex branch runs tied into oversized Lennox trunk lines sag, tear at the collar, and separate at joints - pulling crawl-space air, pests, and debris into the supply. We camera-locate the separation, mastic-seal the joint, and replace torn flex where needed.
- Short-cycling from duct leakage and coil fouling combined. When a Lennox system pulls unconditioned crawl-space air through separated joints while the evaporator coil is choked with dust, the furnace or air handler can’t maintain setpoint. It starts and stops repeatedly. We fix the duct leakage first, clean the coil and blower second, then verify temperature rise and static pressure against Lennox spec.
Before
AfterLennox Service in Englewood: What Local Conditions Mean for Your Equipment
Englewood’s tight 3.4-square-mile footprint is dominated by 1945-1970 ranch homes originally heated by gravity “octopus” furnaces. When Lennox forced-air systems were retrofitted into these homes, contractors often left the oversized original trunk in place and tied new branch runs into it. The resulting hybrid geometry - a massive trunk line feeding undersized flex branches through irregular transitions - is non-standard and notoriously difficult to clean thoroughly without equipment that can navigate sharp offsets and diameter changes.
That irregular geometry is the single biggest reason a Lennox system in Englewood needs a camera inspection before anyone quotes a flat duct cleaning. We’ve seen Rotobrush heads hang up on trunk-to-branch transitions that a standard straight run would clear. We run the camera first. Then we quote. Then we clean. No guesswork.
Our Englewood service area coverage means we’re familiar with the specific crawl-space access points, vent configurations, and retrofit quirks that repeat across this city’s compact housing stock.
Lennox Models & Products We Service in Englewood

We clean and seal Lennox forced-air systems across Englewood, from older G-series furnaces still running in unupdated ranches to current Dave Lennox Signature Collection equipment. Specific lines we work on regularly:
- Dave Lennox Signature Collection: SL280V variable-speed furnace, EL296V two-stage, SLP98V modulating - all with sealed combustion and secondary heat exchangers that demand careful return-side cleaning.
- Merit Series gas furnaces: ML180, ML193 - common in Englewood retrofits from the 1990s and 2000s, often sitting on original gravity-furnace trunks.
- Elite Series heat pumps and air handlers: XP17, CBX27 - coil and blower cleaning, plenum access, filter cabinet service.
- Lennox Healthy Climate air cleaners and MERV filter cabinets: Media replacement, cabinet cleaning, bypass inspection.
We stock OEM or genuine-equivalent parts for load-bearing components locally, so Englewood jobs don’t wait on shipping. For filters and flex duct, we use aftermarket where the spec matches - Honeywell, Aprilaire, and Guardsman media are common fits.
Lennox Service Pricing in Englewood
Full-system Air Duct Cleaning in Englewood typically runs $450-$750 for a standard ranch or bungalow, depending on duct run count, access difficulty, and whether crawl-space repair work is needed. Video inspection is included in every estimate - we don’t quote without seeing inside first. Metal duct repair, flex replacement, and coil cleaning are priced separately and listed in writing before work starts.
What drives cost: number of supply and return runs, presence of original gravity-furnace trunk geometry that requires specialized navigation, crawl-space joint separation needing mastic seal or flex replacement, and evaporator coil fouling severity. Every price is flat per system, agreed in writing, with no per-vent add-ons. Call (720) 315-7291 for an exact quote - estimates are free, and we deliver a Free Second Opinion on any competitor’s written estimate.
Serving Englewood, CO - Our Local Coverage Area

We’re based in the Englewood 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 Englewood
My Englewood home still has the oversized trunk from its old gravity furnace feeding my Lennox system - can that ductwork be cleaned thoroughly?
Yes, but Englewood Dryer Vent Cleaning and duct cleaning both require equipment that can navigate irregular geometry. The oversized trunk with added branch runs is common in Englewood’s 1945-1970 housing stock. We run a camera first to map transitions and offsets, then select the right brush head and negative-pressure extraction setup for your specific configuration. Call (720) 315-7291 to schedule an inspection.
Why does my Lennox Healthy Climate filter cabinet load up so fast in Englewood?
Chinook winds carry fine silty particulates from the eastern plains directly into HVAC intakes at Englewood’s 5,400-foot elevation. During wildfire-smoke season, residents seal homes and run systems continuously, accelerating media loading past standard change intervals. We inspect the cabinet, verify bypass seal integrity, and recommend a change schedule based on your actual runtime, not a generic calendar.
Can you clean the evaporator coil and blower on a Lennox air handler without pulling the whole system apart?
Usually, yes. Most Lennox air handlers - including CBX27 and Signature Collection units - have access panels designed for coil and blower service. We remove the panel, clean the coil face with negative-pressure extraction (suction that pulls dislodged debris out rather than pushing it deeper), and clean or replace the blower wheel as needed. If the coil is behind a sealed plenum on a retrofit system, we discuss access options before quoting.
What does Lennox ductwork in an Englewood crawl space typically need beyond cleaning?
Joint separation at flex-to-trunk collars, sagging flex runs that have pulled loose from hangers, and pest intrusion through separated seams. We camera-inspect the full crawl-space layout, mastic-seal separated joints with rated collars, replace torn flex, and rehang sagging runs. The cleaning happens after the duct is structurally sound. Call (720) 315-7291 for a written scope and price.
My Lennox furnace short-cycles in summer when the A/C runs - is that a duct problem or a system problem?
Often both. Short-cycling on cooling typically means the evaporator coil is freezing due to restricted airflow - from a choked coil face, blower wheel loaded with dust, or duct leakage pulling unconditioned crawl-space air that drops return temperature. We measure static pressure and temperature rise to isolate the cause. If the coil and blower are clean and ducts are sealed, we’ll tell you the system needs HVAC mechanical diagnosis rather than duct work.
Service Areas Near Englewood

We run Lennox service calls throughout the south metro corridor. Regular stops include Lennox service in Littleton - where we handle a lot of the older ranch stock similar to Englewood’s - and Lennox service in Highlands Ranch, with its mix of 1980s builds and newer construction. Cherry Hills Village, Greenwood Village, and Centennial round out our typical daily route. Each area has its own ductwork patterns; we adjust our approach accordingly.
Book Your Lennox Service in Englewood Today
Call (720) 315-7291 to speak with a live person and schedule your free estimate. We’ll run the camera, show you what’s inside your ductwork, and deliver a written flat price before any work starts. Every job includes a Documented Photo Record of every duct run and is backed by our 365-Day Done Right Promise.
Written by Tomas Reyes, Owner at CleanRun Air Duct Cleaning Littleton, serving Englewood and the south metro since 2013.




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