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 Longmont, CO
We provide independent Lennox service across Longmont, CO. What sets our Lennox work apart here is that we know both the equipment and this city’s specific duct problems: panned-joist returns in Old Town, leaky taped seams in post-war ranches, and fine calcareous grit that finds every gap. Our technicians have up to 9 years of experience with Lennox systems, and we clean and we repair. Call (877) 550-7147. We answer 24/7.
Why Longmont Residents Choose Us for Lennox Service
We’re an independent Lennox service provider, not manufacturer-affiliated or authorized, and that independence is the point. Independent technicians who work on Lennox systems daily know the cabinet gaskets, coil panel fasteners, and variable-speed blower controls that fail in Front Range homes. Diagnosis is based on what the system actually needs, not a manufacturer script.
We service Longmont homes with professional-grade tools: Rotobrush contact-cleaning systems on every job, Nikro negative-air/HEPA equipment to keep dust contained, and Abatement Technologies gear when a home has contamination-level conditions. Guardsman protective treatments are available as part of the full-service scope. Scheduling is straightforward, and the price is set per job by the written estimate. Longmont homeowners who research before they book tend to appreciate that.
Styles & brands we work with
- Whole-home duct cleaning
- Dryer vent cleaning
- Camera inspection
- Sanitizing & deodorizing
Common Lennox Air Duct Cleaning Problems We Solve in Longmont
- Seam leaks feeding the blower wheel. Panned-joist returns and undersized rigid ducts in Old Town bungalows often develop seam leaks that let clay-rich dust bypass the filter and coat the Lennox air-handler blower wheel, causing imbalance and reduced airflow.
- Sagging flex runs on variable-speed systems. Flexible-duct runs in 1990s-2010s east-side subdivisions can sag or kink at tight turns, choking airflow on Lennox variable-speed air handlers and triggering high-static pressure faults.
- Deteriorating joints on galvanized trunks. Original trunk lines in Longmont’s 1950s-70s ranches have tape and mastic at joints that go brittle with age; fine calcareous grit from spring winds gets in through those leaks and settles on the Lennox evaporator coil, leading to frost and drainage trouble.
- Filter cabinets pulling unfiltered air. Lennox healthy climate media cabinets installed without proper gasketing can draw air around the filter frame, dumping dust straight onto the downstream coil and blower.
- Coated condensers and clogged returns after cottonwood season. Spring seed fluff coats every intake screen and outdoor unit, and dry winter winds keep loading the returns, so the blower works harder through a long heating and cooling season.
Lennox Service in Longmont: What Local Conditions Mean for Your Equipment
Longmont’s two National Register historic districts, Old Town and the Historic West Side, hold pre-1930 bungalows and 1950s ranches where panned-joist returns and undersized rigid ducts are common. Add clay-soil foundation shifting to those old seams and you get leak paths that a technician learns to expect block by block. This is not what the same technician sees one town over in Boulder or Fort Collins. For a Lennox air handler, that matters directly: every seam leak pulls in fine calcareous grit from the return chase, and that grit coats the blower wheel and evaporator coil, cutting airflow and making cooling uneven room to room. The high-desert climate around Longmont compounds it, because the blower runs for most of the year across long heating and air-conditioning seasons. Duct work here is as much about mineral dust and old duct seams as pet hair. Sealing those seams and cleaning the coil and blower is what gets a Lennox system back to the airflow it was designed for.
Lennox Models & Products We Service in Longmont
We service the Lennox equipment Longmont homes actually run: Merit Series gas furnaces like the ML195 and ML296, Elite Series variable-speed air handlers such as the CBX32MV and CBA38MV, Dave Lennox Signature Collection systems like the SLP98 and SL280V, and Lennox healthy climate bypass and media air cleaners, including systems built around Honeywell and Aprilaire filtration.
For parts, we use OEM Lennox filter cabinets, gaskets, and blower components when available to keep fit and performance intact. On out-of-warranty systems, quality aftermarket parts such as equivalent blower motors, flex duct and mastic are weighed case by case. We give honest repair-versus-replace guidance based on system age, efficiency losses, and how much duct leakage the system has. Our sub-services on these jobs are return duct cleaning, evaporator coil cleaning and duct sealing.
See the difference
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After
Before
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Before
AfterLennox Service Pricing in Longmont
Pricing is per job, set by a written estimate after we see the system; there is no per-vent price and no teaser figure that grows on site.
- Air duct cleaning, whole system: estimated from the duct layout, number of returns, and how much grit and debris has built up.
- Return duct cleaning: influenced by panned-joist or rigid-return access in older Longmont homes.
- Evaporator coil and blower cleaning: priced on access to the coil cabinet and the condition found there.
- Duct sealing with mastic: priced by how many accessible seams need resealing.
- Dryer vent cleaning: a standalone fire-safety service with its own process and equipment.
The free estimate includes a look at your Lennox system, the duct runs, and the seams, so the number you get is the number you pay. Call (877) 550-7147 for an exact quote – estimates are free.
Serving Longmont, CO – Our Local Coverage Area
We serve Longmont and nearby communities. Use the map below to see the area we cover. If you’re nearby, we can almost certainly help.
FAQs – Lennox Air Duct Cleaning in Longmont
Clay-rich dust bypasses leaky duct seams and coats the Lennox air-handler blower wheel and evaporator coil, which reduces airflow and throws the blower out of balance. Cleaning the ducts and sealing the accessible seams is how that load gets removed and kept out.
Yes. Panned-joist returns can be cleaned effectively with contact-cleaning tools that reach into the joist bays and chase. We inspect first, then clean the return path and check the seams for leaks while we’re in there. Call (877) 550-7147 for an exact quote – estimates are free.
Yes, dirty or kinked ducts are a common cause of high-static faults on Lennox variable-speed air handlers. Sagging flex runs and blocked returns raise static pressure, and the system throws a fault instead of pushing air it can’t move.
The outdoor condenser coil is a separate component from the duct system, so cleaning it isn’t part of a duct job. But the same cottonwood fluff coats return intake screens, and that does affect airflow through the ducts, so we check the screens and returns during the visit.
Yes, we clean the evaporator coil on Lennox healthy climate media cabinet systems carefully, and we check the filter frame gasketing at the same time so unfiltered air stops bypassing it. Call (877) 550-7147 for an exact quote – estimates are free.
Service Areas Near Longmont
We serve Longmont and the towns around it, including Boulder, Westminster, Thornton, Arvada and Platteville. If you’re just outside the city line, call and we’ll confirm coverage for your Lennox system.
Book Your Lennox Service in Longmont Today
Ready to get your Lennox system’s ducts clean and its seams sealed? Call (877) 550-7147. We answer 24/7, with fast dispatch from 7am to 7pm, Sunday through Friday. The estimate is free and the price is set per job in writing before work starts.
Written by the team at Boulder Duct Cleaning.