Air Duct Cleaning Services in Boulder, CO
Professional air duct cleaning in Boulder typically runs $350-$650 for a standard single-system home and is usually completed in one visit. Bellows Air Duct & Vent Co. has worked in Boulder since 2012, and we answer calls live at (844) 685-6342, day or night. Most appointments are scheduled within 48 hours, and we carry the full spread of Rotobrush and Nikro equipment to handle everything from 1950s ranch ductwork in South Boulder to the converted student rentals around University Hill.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Why Boulder Homeowners Choose Bellows Air Duct & Vent Co.
We’ve been driving the same roads you drive for over a decade now. Table Mesa, Martin Acres, Newlands, the Mapleton Hill historic district - our technicians know which basements flood when Boulder Creek rises, which crawlspaces collect wildfire ash from the Chinook winds, and which original sheet-metal systems from the 1960s are still rattling through their first professional cleaning.
Boulder homeowners tend to stay put. They fix things instead of replacing them. They remember the contractor who showed up late, or the one who quoted $199 and charged $800 at the door. We built Bellows on the opposite impulse: one honest price, shown before we start, backed by a 90-Day Done Right Promise in writing. If it’s not right, we return at no charge. No paperwork, no arguing.
Our office phone rings to a live person 24 hours a day, not an app or a voicemail tree. Every technician is background-checked and uniformed. Every job gets a camera inspection before and after, so you see what we see. That’s how we’ve worked since 1984, and that’s how we work in Boulder.
Air Duct Cleaning Services We Offer in Boulder
Air Duct Cleaning
We clean the full supply and return duct network, registers, and grilles using professional-grade Rotobrush and Nikro equipment. Camera inspection before and after documents the actual condition of your system, not just our claim. Learn more about our Air Duct Cleaning in Boulder.
Dryer Vent Cleaning
Lint accumulation in dryer vents is a leading cause of house fires, and Boulder’s dry climate accelerates static-cling buildup in longer vent runs common to older homes. We clear the full vent path from appliance to exterior termination and verify airflow. Learn more about our Dryer Vent Cleaning in Boulder.
HVAC Cleaning
Blower motors, evaporator coils, and plenums collect the same particulates that settle in ducts, especially after wildfire seasons push fine ash through systems running in recirculation mode. We clean the full air handler, not just the visible surfaces. Learn more about our HVAC Cleaning in Boulder.
Duct Repair & Sealing
Original ductwork in Boulder’s 1950s-1970s housing stock often leaks at seams and connections, wasting conditioned air and pulling in crawlspace dust or radon-laden soil gas. We seal and repair with mastic and metal-backed tape, not duct tape that fails in six months.
Air Quality & Sanitizing
For homes with persistent odor, post-wildfire contamination, or verified microbial growth in ductwork - particularly in crawlspaces flooded during the 2013 Boulder Creek event - we apply EPA-registered sanitizers with proper dwell time and ventilation protocols.
Neighborhoods We Serve in Boulder
We schedule most Boulder appointments within 24-48 hours, with same-day availability for urgent situations like post-wildfire contamination or visible mold in ductwork.
- Table Mesa (80305) - Original 1960s-1970s ranch and split-level homes with sheet-metal ductwork that often predates any professional cleaning
- University Hill (80302) - 1920s-1940s homes, many converted to student rentals, where duct neglect between tenants is routine
- Newlands & Mapleton Hill - Historic homes with modified duct systems and frequent crawlspace moisture issues from aging foundations
- Martin Acres - Mid-century family homes where the same owners have lived 20+ years and are now addressing maintenance deferred since purchase
Why Boulder’s Climate & Housing Affect Air Duct Cleaning
Boulder sits in a unique position, pressed against the Flatirons on the urban-wildland interface, and that geography creates duct contamination patterns you won’t find in Denver or Fort Collins. The December 2021 Marshall Fire burned east of the city in Superior and Louisville, but the smoke plume saturated Boulder proper for days. Homes with HVAC systems running in recirculation mode pulled that smoke through ducts repeatedly, depositing fine particulate matter that standard furnace filters cannot capture. Then the Chinook winds arrive, gusting above 100 mph through Boulder Canyon, creating rapid pressure differentials that force outdoor air - carrying wildfire ash, grassland pollen, and Front Range road dust - into duct systems through every small leak in the building envelope.
At 5,430 feet in a semi-arid climate, Boulder’s low humidity keeps those particulates suspended and mobile rather than settling or sticking to damp surfaces. They circulate until they deposit in ductwork or you breathe them. Meanwhile, Boulder’s strict growth controls - the Blue Line, urban service area limits, decades of open-space acquisition - have constrained new construction so severely that much of the housing stock dates to the 1950s-1970s. In South Boulder’s Table Mesa neighborhood, we regularly find original sheet-metal ductwork that has never been professionally cleaned in 50+ years. The University Hill area near CU Boulder presents the opposite problem: high-turnover student rentals where duct maintenance is simply never performed between tenants, and where properties back directly against city open space, exposing them to the highest wildfire smoke and grassland particulate loads in the city.
The 2013 Boulder flood added another layer. Neighborhoods along Boulder Creek saw crawlspace ductwork submerged or saturated, and we are still remediating localized mold-in-duct issues in older homes where moisture was never fully extracted from the system.
Pricing for Air Duct Cleaning in Boulder
We disclose pricing before any work begins. The quote we give over the phone is the number on the invoice.
| Service | Typical Range in Boulder |
|---|---|
| Standard residential air duct cleaning (single system) | $350-$650 |
| Larger home or dual HVAC system | $600-$950 |
| Dryer vent cleaning (standalone) | $150-$250 |
| Dryer vent cleaning (bundled with duct cleaning) | $99-$175 |
| HVAC cleaning (blower, coils, plenum) | $275-$450 |
| Duct repair & sealing (per system) | $400-$800 |
| Air quality sanitizing | $150-$300 |
Several standing offers apply: $50 off any repair over $250, a free second opinion on any written estimate, our $89 seasonal tune-up, and a permanent 5% senior and veteran discount. Call (844) 685-6342 for an exact quote - estimates are free.
Service Area - Cities Near Boulder
We work throughout the Boulder Valley and beyond. If you’re in Louisville or Lafayette recovering from Marshall Fire smoke damage, in Erie dealing with new-construction drywall dust in fresh ductwork, or in Broomfield with a home built during the 1990s-2000s boom, we cover your area with the same 24-hour live answering and same-day scheduling when urgency demands it.
Serving Boulder, CO - Our Local Coverage Area
We’re based in the Boulder 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 About Air Duct Cleaning in Boulder
Most standard single-system homes in Boulder fall between $350 and $650, with larger or dual-system homes running $600-$950. We disclose the exact price before work starts, and we never change it at the door. Call (844) 685-6342 for a free estimate tailored to your home.
Yes, and in Boulder it’s a documented problem. The 2021 Marshall Fire pushed smoke throughout the city, and Boulder’s Chinook winds regularly force outdoor particulates into homes through pressure differentials and leaky duct seams. If your system was running during a smoke event, or if you smell residual odor from vents, a professional cleaning with camera verification is warranted.
Every 3-5 years for typical homes, but more frequently if you’ve experienced wildfire smoke exposure, have pets, or live in a high-turnover rental near CU Boulder where previous maintenance is unknown. Homes in the 80302 and 80303 ZIP codes with direct open-space exposure should consider more frequent inspection due to elevated particulate loads.
Repair and sealing is almost always the more economical path for Boulder’s 1950s-1970s housing stock, which was built with durable sheet-metal ductwork that simply needs proper sealing at seams and connections. Full replacement typically runs $3,000-$7,000 and is only necessary when ducts are physically damaged or improperly modified. We offer a free second opinion on any replacement estimate you’ve received. Call (844) 685-6342 to schedule.
Same-day appointments are often available for urgent situations like post-wildfire contamination, visible mold, or complete airflow blockage. Our office answers live 24 hours a day at (844) 685-6342, and we’ll give you an honest timeframe - if we can’t make it today, we’ll tell you when we can and stick to it.
Ready to get your ducts cleaned right the first time? Call Bellows Air Duct & Vent Co. at (844) 685-6342 for a free estimate. We’ll answer live, give you an upfront price, and show up when we say. That’s how we’ve done it since 1984.
Written by the team at Bellows Air Duct & Vent Co., serving Boulder since 2012.
What happens when you call
- 1A real person answersNo phone trees - talk to a local air duct cleaning pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3A background-checked tech heads outLicensed & insured, typically within same-day.
- 4You approve before work beginsNothing starts until you say go.
What Bell Customers Say
"Showed up fast, fixed it right the first time, and the price matched the quote. Couldn't ask for more."
- Verified local homeowner"Professional from the first call. Explained everything clearly and left the area spotless."
- Verified local homeowner"Called in the morning, problem solved by afternoon. Honest, upfront pricing - highly recommend."
- Verified local homeowner