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.
Fast, Reliable Air Duct Cleaning Across Longmont
If your registers are puffing dust every time the furnace kicks on, or the return grille has gone gray with grit you can’t vacuum out, the ducts are the problem, not the filter. Air duct cleaning in Longmont means source removal of that debris under negative pressure, not a surface wipe of the register face. We know the housing here: the 1990s tech-boom subdivisions off the Ken Pratt corridor, the older ranch homes near downtown and along the St. Vrain, the townhomes where a dryer vent runs up a shared stack. Call (866) 361-9658. We answer 24/7. Fast dispatch, 7am-7pm.
Why Longmont Homeowners Call Duct Cleaning Longmont for Air Duct Cleaning
Longmont is one of the few cities on the Front Range where a duct cleaner has to understand two completely different kinds of duct system on the same street. Downtown and the St. Vrain corridor are full of 1950s – 70s ranch homes with galvanized trunk lines, hand-taped joints, and crawlspaces that swallow whatever leaks out. Ten minutes east, the 1990s – 2010s subdivisions are almost all builder-grade flex duct and undersized filter grilles. Our technicians have up to 10 years of experience and carry equipment built for both – a Rotobrush brush-agitation system paired with Nikro HEPA vacuum extraction, so the debris is physically dislodged and captured instead of stirred into the room.
We work with your insurer when a job calls for it, and we’re licensed and insured. The price is one flat price per system, agreed before work starts. That matters in a market where a low coupon number on a flyer tends to grow once the technician is standing in your utility room. We don’t quote per vent and we don’t run a teaser price. You get before-and-after photos of your own ducts, so you can see what came out.
Longmont jobs get scheduled with the housing in mind. Dense blocks of townhomes and condos mean tight driveways, alley access, and shared utility closets, and we plan the equipment layout before we arrive. We cover Longmont and the surrounding north-metro area.
Styles & brands we work with
- Whole-home duct cleaning
- Dryer vent cleaning
- Camera inspection
- Sanitizing & deodorizing
Residential Air Duct Cleaning in Longmont
Residential Air Duct Cleaning in Longmont usually starts with a video inspection, because guessing at a duct system is how cheap jobs go wrong. A camera run through the supply and return tells us whether we’re dealing with sagging flex duct, a cracked trunk, or just years of accumulated dust. Most homes need the full system: supply runs, return runs, the plenum, the blower compartment, and the register boots. A typical whole-home job in Longmont runs $350 – $650 for a standard single-family house, and $550 – $900 where the system is larger, heavily loaded, or needs re-sealing on top of cleaning. The written estimate sets the final price.
What a Full-System Clean Actually Covers
Every run in the house gets touched, not just the ones closest to the furnace. We agitate each supply and return with a Rotobrush whip, hold the system under negative pressure with Nikro HEPA extraction the whole time, and seal the register openings so nothing drifts back into the living space. When we finish, you get before-and-after photos of the ducts we worked on.
When a Longmont Home Needs It
The honest triggers are simple: visible debris on the return grille, a musty smell when the heat first comes on in fall, uneven airflow between rooms, or a system that hasn’t been opened up in a decade. If you’ve just finished a renovation, drywall dust finds its way into every run and needs a proper extraction pass, which is where our Abatement Technologies filtration gear earns its place.
Commercial Air Duct Cleaning in Longmont
Commercial Air Duct Cleaning in Longmont covers small office suites, retail spaces, clinics, and the multi-tenant buildings along the main commercial corridors, and the constraint is almost always access rather than duct size. Ceiling grids, drop-tile layouts, and occupied neighboring suites mean the work has to fit around business hours. We schedule commercial work in blocks so a suite isn’t torn apart while it’s open, and we keep the same negative-pressure discipline a house gets. A typical commercial job in Longmont runs $900 – $2,800 depending on square footage, number of air handlers, and whether rooftop units are involved. The written estimate sets the final price.
Planning Around Occupied Space
In a multi-tenant building, dust control isn’t a courtesy, it’s the whole job. We isolate the zone being cleaned, run HEPA filtration at the work area, and stage equipment with the building’s management so tenants aren’t stepping around hoses in a shared corridor. Buildings with shared rooftop air handlers get those units inspected before anything is cleaned, because a fouled coil can undo a clean duct system in a season.
Beyond Routine Dust
Commercial systems often carry loading a home never sees: copier toner, kitchen exhaust migration, and renovation fallout from a neighboring suite. Our Abatement Technologies air-filtration equipment handles those scenarios, and post-renovation clearance cleaning is a routine request. If the inspection turns up a loose joint or a crushed flex run, we repair what we find instead of handing you a list of problems.
Trusted Brands We Service in Longmont
We work with Rotobrush and Nikro extraction systems as our core cleaning equipment, and Abatement Technologies filtration gear for jobs that go beyond routine dust. On the filtration side, we supply and install Honeywell and Aprilaire IAQ products, which lets a homeowner move from clean ducts to better filtration and humidity control without a second contractor. Guardsman products round out the mix on the repair side. What that means for a Longmont homeowner is capability: if the inspection turns up a filter grille that’s undersized for the system, we can upgrade it in the same visit rather than telling you to call someone else. It’s one company, one diagnosis, one accountable result.
See the difference
Before
After
Before
After
Before
AfterCommon Air Duct Cleaning Problems We See in Longmont Homes
- Sagging builder-grade flex duct in 1990s – 2000s subdivisions. Flex runs that have sagged or kinked over two decades throttle airflow and trap dust in the low spots, and a quick register vacuum never reaches it. We agitate the full length of each run before extraction.
- Shared-stack dryer vents in dense townhome and condo buildings. One lint pathway can serve several units, so cleaning a single unit’s run misses the blockage entirely. We trace the stack through the building before we put a brush in it.
- Failing tape on galvanized trunk lines in 1950s – 70s ranch homes. Loose joints bleed air into crawlspaces and let west-side grit and cottonwood fluff bypass the filter, coating the blower motor between cleanings. Re-sealing the trunk is part of the fix.
- Undersized filter grilles fighting the system. A grille too small for the return volume pulls dust past the filter and forces the blower to work against restriction. Upgrading to a proper MERV rating is often the highest-value change in the house.
Pricing for Air Duct Cleaning in Longmont, CO
Honest numbers, whole-system, no per-vent games. A typical residential whole-home air duct cleaning in Longmont runs $350 – $650, and larger or heavily loaded systems with re-sealing work land in the $550 – $900 range. Add a dryer vent cleaning on the same visit and you’re usually looking at $120 – $250 for that vent. Commercial work starts around $900 and climbs with square footage and air-handler count, typically landing between $900 and $2,800. Air duct repair is priced per job once we know what’s failing. What moves the number: number of runs, accessibility, whether the trunk needs re-sealing, and whether a shared stack is involved. The estimate is free, and the written estimate sets the final price.
We Also Serve Cities Near Longmont
We work across the north metro, so if you’re just outside Longmont, the same scope and the same written-estimate approach apply. That includes Boulder, Thornton, Westminster, and Berkley. Same equipment, same video-inspection-first process. If you’re unsure whether your address falls in range, call and we’ll confirm before booking anything.
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 About Air Duct Cleaning in Longmont
It starts with tracing the stack, not cleaning the visible run. In shared buildings, we map the lint pathway through the stack so we know whether the blockage sits above or below your unit, then clean the full pathway rather than the section you can reach. That usually means coordinating access with the building, since a shared stack isn’t confined to one unit. The cleaning itself runs under negative pressure with HEPA filtration, so lint and debris are captured rather than pushed into a neighboring unit. Call (866) 361-9658 – the estimate is free and we’ll walk you through what access is needed. We answer 24/7, with fast dispatch 7am to 7pm.
Because the plains wind and the cottonwood season load the return side harder here than in wetter or higher-elevation Colorado cities. West-side homes sit close to foothills wind corridors and open farmland, so fine grit rides in and settles in the intake plenum, and spring cottonwood fluff coats the furnace blower along with it. The dry, semi-arid climate means you’re not typically fighting mold the way humid markets do, but the dust loading is genuinely heavier. If the plenum has gone reddish-brown by April, a full-system clean plus a filter grille upgrade is the usual fix. Call (866) 361-9658 for an exact quote – estimates are free.
Realistic means scheduling in blocks and isolating the work zone so the suite stays usable. Most commercial jobs here are planned around the business’s operating pattern, with equipment staged out of customer traffic and HEPA filtration running at the work area throughout. A small suite can often be handled in a single visit; a multi-tenant building with several air handlers takes more planning and more time. Budget-wise, expect $900 – $2,800 depending on square footage and unit count, with the written estimate setting the final number. Call (866) 361-9658 and we’ll build the schedule around your space. We answer 24/7, with fast dispatch 7am to 7pm.
Expect the inspection to find sagging flex runs and a filter grille that’s undersized for the system, because that’s the standard build pattern in the tech-boom subdivisions. Those builder-grade runs are now past 20 years old, and the sagging throttles airflow while trapping dust a register vacuum can’t reach. The usual visit combines full source-removal cleaning with agitation through every run, then upgrading the filter grille to a higher MERV rating. Where a run is crushed or kinked, we repair it rather than clean around the problem. Call (866) 361-9658 – estimates are free and the written estimate sets the final price.
You ask what method and equipment the technician is using, and you judge the answer by whether it includes source removal under negative pressure with agitation. A surface vacuum touches the register and leaves the run untouched. Proper work uses a brush-agitation system like Rotobrush to dislodge debris along the full duct wall while Nikro HEPA extraction holds the system under negative pressure, and it includes the plenum and blower compartment, not just the visible openings. We also do a video inspection first and give you before-and-after photos of your own ducts at the end, so the result is verifiable rather than a claim. Call (866) 361-9658 and we’ll explain exactly what your system needs.
If your ducts haven’t been opened up in years, or the return grille is telling you it’s time, call (866) 361-9658 for a free estimate. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday. One flat price per system, agreed before work starts, licensed and insured, with before-and-after photos so you can see the work for yourself. Our air duct cleaning team handles supply and return runs, repairs, and dryer vents in a single visit.
Written by the team at Duct Cleaning Longmont.