Air Duct Cleaning in Longmont - One Price Per System, Agreed Before We Start

Trusted Air Duct Cleaning for Longmont Homeowners

If your registers are pushing out musty air, dust settles back onto the furniture days after you clean, or one upstairs room never warms up the way it should, the problem is usually inside the duct system rather than at the furnace. Duct Cleaning Longmont handles that hidden layer of your home’s air system with contact-and-capture cleaning: Rotobrush brush agitation to break debris loose and Nikro HEPA vacuum extraction to pull it out of the house instead of blowing it around the room. Our technicians have up to 10 years of experience, and we hold a strong local reputation built on showing the work rather than describing it. We can often reach Longmont the same day. Call (866) 361-9658 for a free estimate.

Call (866) 361-9658

Air Duct Cleaning Services

Air Duct Cleaning Services from Duct Cleaning Longmont cover the full run of supply and return ductwork, not just the registers you can reach with a vacuum hose. You need this when dust is visibly accumulating at the grilles, when a room smells stale the moment the blower kicks on, or when the system hasn’t been opened up in several years. We brush-agitate every branch line with a Rotobrush system and capture the loosened material with Nikro HEPA extraction, then document what came out with before-and-after photos of your own ducts. Typical whole-system cleaning in Longmont runs $350 to $700 depending on the number of runs, the square footage and how accessible the trunk line is. The written estimate sets the final price before any work begins.

What Contact-and-Capture Means

Contact means a brush physically touches the inside wall of the duct and dislodges what’s stuck there. Capture means a HEPA vacuum holds that material at the source so it leaves the system entirely. Cleaning that only blows air through the ducts moves dust from one room to another, which is why the method matters more than the price.

What a Standard Visit Covers

Every visit includes the trunk line, all branch runs, supply and return registers, and the blower compartment where debris tends to collect. We photograph the interior before and after so you can see the difference rather than take our word for it. If we find separated joints or crushed flex during the cleaning, we flag them and can quote the fix on the spot.

HVAC Duct Cleaning

HVAC Duct Cleaning on our side means cleaning the duct network that serves your heating and cooling equipment, including the plenum and the return path that feeds the air handler. It’s the right call when you’ve had renovation dust pulled through the system, when the filter housing is packed with debris that bypassed a cheap filter, or when the whole system is simply overdue. We run contractor-grade extraction so the air handler side isn’t left holding what the branches released. Budget around $400 to $800 for a typical Longmont home once the plenum and return path are included. If you want broader context on the service itself, our duct cleaning Longmont page lays out the full scope.

Return Paths and Plenum Work

The return side usually carries more debris than the supply because it pulls air from living space first. We clean the return trunk and the plenum above the air handler, where dust settles on the coil face and around the filter rack. That’s often where the musty smell lives long after the supply registers look clean.

Renovation and Remodel Fallout

Drywall dust is fine enough to pass straight through a standard filter and coat the inside of every run. After a remodel, we use Abatement Technologies air-filtration equipment to keep airborne particulate contained during the cleaning itself. That gear category is the same used in professional remediation work, which matters when the dust load is heavy.

Vent Cleaning

Vent Cleaning refers to the register and grille side of the system: the supply vents, the return grilles, and the boots where the duct meets the floor or ceiling. It’s needed when vent faces are caked with dust, when a bathroom or kitchen exhaust vent is pulling poorly, or when visible debris sits just inside the grille. We pull the grilles, clean the boots, and vacuum the surrounding cavity so debris doesn’t fall straight back into the run. Simple vent and register cleaning in Longmont typically runs $120 to $250 when done as a standalone visit. Whole-system pricing applies when it’s combined with full ductwork cleaning.

Supply and Return Registers

Every supply and return grille comes off, gets cleaned on both faces, and goes back on with the boot cavity vacuumed out. It’s a small job that makes a visible difference, especially on painted or older grilles where dust bonds to the surface. If a grille is bent or clogged beyond cleaning, we’ll tell you rather than reinstall it as-is.

Bathroom and Kitchen Exhaust Vents

Exhaust vents move moisture and cooking grease out of the house, and both leave residue on the inside of the duct wall. A bathroom vent that’s clogged with lint and dust holds humidity where it shouldn’t, which is why it’s worth checking alongside the rest. We inspect these runs and clean what we can reach safely from the accessible side.

Ductwork Cleaning

Ductwork Cleaning goes after the structure itself: the sheet metal trunk, the flex runs, the transitions, and the joints where debris piles up at a change in direction. It’s the right service when you’ve noticed uneven airflow between rooms, when the system whistles or strains, or when a prior cleaning skipped the hard-to-reach trunks. We work the full run with brush agitation sized to the duct type, so rigid metal gets a firmer brush and flex gets one that won’t tear the liner. Typical ductwork cleaning for a Longmont house runs $350 to $750, priced per system rather than per vent. The written estimate fixes the number before we start.

Rigid Trunk and Flex Runs

Rigid metal trunks collect debris in the corners where the seams sit, and flex runs trap it in the corrugations. Each type gets a different brush head and a different amount of vacuum pull to clean without damage. That distinction is why equipment choice matters as much as technique.

Seams, Joints and Transitions

Every change in duct direction is a collection point, and every loose joint is a leak that pulls attic or crawlspace air into the system. We check seams as we clean and note any that need sealing. Cleaning a leaking system without addressing the leak means the next round of dust arrives faster.

Air Duct Inspection

Air Duct Inspection is the diagnostic step before anyone quotes a cleaning or a repair, and it’s the part most homeowners never see from a cheaper bid. You need one when you’ve had a pest problem, water intrusion, a mold concern, or a contractor who flagged “contamination” without showing you anything. We open up the system, photograph the interior of the runs, and report what’s actually there before recommending work. A standalone inspection in Longmont runs $99 to $200, and we credit the finding into a cleaning quote rather than leaving you with a report and no path forward. If the inspection turns up a damaged run, our air duct repair service handles the fix.

Camera and Photo Documentation

We run a camera through the accessible runs and photograph the findings at each one. You see the same images we do, in the same visit, rather than a verbal description of what a technician claims to have found. Documentation is the difference between a diagnosis and a sales pitch.

When to Book One

Book an inspection after a remodel, after any water event near the ductwork, or when you’re moving into a home with an unknown service history. It’s also worth doing when multiple contractors have given wildly different quotes, since the report settles what’s actually in the system. A cheap inspection now beats paying for a cleaning you may not need.

Residential Air Duct Cleaning

Residential Air Duct Cleaning is the work we do in houses, townhomes and condos where the system serves a family rather than a business. It’s the right fit when allergy symptoms flare inside the house and ease outdoors, when a bedroom stays dusty while the rest of the home doesn’t, or when the system hasn’t been opened since the house changed hands. We clean every accessible run and register, then photograph the result. Whole-home cleaning in Longmont generally runs $350 to $700, scaling with square footage, the number of runs and how many systems the house has. A single flat price per system is agreed before we start, and there’s no per-vent charge.

Single-System and Multi-System Homes

A house with one furnace and one air handler is priced as one system; a home with a second unit for upstairs is priced as two. We confirm that up front so nothing appears on the invoice later. Older Longmont homes with converted heating layouts sometimes have zones that need extra attention, and we’ll say so before quoting.

Allergy and Dust Concerns

If dust and pollen are the main complaint, cleaning is step one and filtration is step two. We supply and install Honeywell and Aprilaire filtration products, so the visit can move from clean ducts to better filtered air without a second contractor. That pairing usually does more for indoor air than repeated cleanings alone.

Commercial Air Duct Cleaning

Commercial Air Duct Cleaning covers offices, retail spaces, rental units and small industrial buildings where the duct system runs longer and carries more load than a house ever will. Property managers book it when a tenant complains about stale air, after a build-out leaves construction dust in the ceiling grid, or on a scheduled cycle rather than waiting for a problem. We work around business operations, clean the main trunks, branch runs and diffusers, and document the result in photos the property manager can keep on file. Commercial work in Longmont typically runs $800 to $2,500 depending on system size and access. The estimate is free and the scope is agreed in writing first.

Offices, Retail and Rental Units

Commercial systems often have long trunk runs with few access points, so we add access panels where needed rather than skipping the sections we can’t reach. Diffusers get pulled and cleaned individually. It’s slower work than a house, but it’s the only way the result holds up.

Scheduling Around Tenants

Work is staged in sections so a business can keep operating while we clean the rest of the system. We coordinate access with whoever manages the space and keep the extraction contained. If your building shares ductwork between units, we’ll map it before we start.

Brands We Service

We run a Rotobrush brush-agitation system as the backbone of most cleanings, and we know exactly where that equipment excels and where a different head or a lighter touch is needed on flex. The pairing with Nikro HEPA vacuum extraction is deliberate: Rotobrush loosens the debris and Nikro holds it, and neither half works as well alone. We also carry Abatement Technologies air-filtration equipment for jobs where airborne containment is part of the job rather than an afterthought, including renovation fallout and post-remediation clearance cleaning. Guardsman products round out the service mix where an additional treatment step makes sense for the system.

On the filtration side, we supply and install Honeywell and Aprilaire products, which lets a homeowner move from clean ducts to better-filtered air in the same visit. These are professional equipment lines we work with, not exclusive arrangements, and we’ll tell you plainly which one fits your system. Whether you have Rotobrush-compatible flex runs, a Honeywell filter cabinet, an Aprilaire unit, or any other make, we can help.

Signs You Need a Pro Right Now

• Musty odor when the heat or AC kicks on. A smell that arrives with airflow and fades when the blower stops usually originates inside the duct system or at the coil. It won’t clear on its own, and masking it with an air freshener just hides the symptom.
• Visible dust plumes from the registers. If you can see dust puff out when the system starts, the runs are loaded and the filter isn’t catching it. That’s debris being redistributed into the room every cycle.
• Uneven airflow between rooms. A room that never heats or cools like the rest can point to a blocked or crushed run rather than a failing furnace. An inspection tells you which, and cleaning plus repair often fixes it.
• Recent renovation or water damage. Drywall dust and moisture both travel through the system and settle in places you can’t see. Post-renovation cleaning with proper filtration equipment prevents that debris from circulating for years.
• Allergy symptoms that ease outdoors. If symptoms improve away from the house and return inside, the home’s air is the variable worth checking. Cleaning the system removes the reservoir that keeps re-exposing you.

Our Process, Step by Step

1. 1
   Walkthrough and system map. We locate the air handler, count the runs, identify the duct types, and find the access points before any equipment comes in. This step sets the scope and confirms the flat price per system.
2. 2
   Inspection and photo baseline. A camera goes through the accessible runs and we photograph the interior at each one. You see the starting condition, which is the baseline everything else is measured against.
3. 3
   Containment and negative pressure. We set up HEPA extraction and, where the job calls for it, Abatement Technologies filtration to hold airborne particulate. Keeping the system under negative pressure is what stops debris from migrating into living space.
4. 4
   Brush agitation and extraction, run by run. Each branch gets brushed with the head matched to its duct type, then vacuumed while the debris is still airborne. Registers, boots and the blower compartment get the same treatment.
5. 5
   Final photos and a written summary. We photograph the cleaned interior, show you the comparison, and note anything that needs repair or filtration attention. If we found a problem we can fix, we quote it rather than leaving you with a list.

How Much Does Air Duct Cleaning Cost in Longmont?

Our Service Area Near Longmont

We work across Longmont and the surrounding Front Range communities, including Boulder, Thornton, Westminster, Arvada, Greeley, Berkley, Commerce City, Fairmount and Timnath. Drive times vary with traffic, but most of these areas are within a straightforward run from Longmont, and we schedule to keep arrival windows realistic rather than optimistic. If you’re closer to the metro side, our air duct cleaning coverage in Thornton follows the same process and the same flat-price structure. Homes and businesses along the northern corridor get the same equipment and the same documentation.

Frequently Asked Questions About Air Duct Cleaning in Longmont

Schedule Your Air Duct Cleaning Service in Longmont Today

Call (866) 361-9658 to book air duct cleaning in Longmont, and we’ll set up a free, no-obligation estimate with a flat price per system agreed before any work starts. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday. You’ll see before-and-after photos of your own ducts, and if we find a repair, we can fix it in the same visit. Whether you’re in Longmont or nearby in Boulder or Arvada, our air duct cleaning crews follow the same process, and dryer vent cleaning can be added to the same appointment.

Written by the team at Duct Cleaning Longmont.