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.
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AfterTrusted Air Duct Cleaning Nationwide
Air Duct Cleaning cost guide: Hollis Air Duct Cleaning typically runs $300 – $800 for a complete residential system, with most jobs finished in two to four hours. We’ve been at this since 2004, and our crews arrive uniformed, background-checked, and equipped with professional-grade tools from Rotobrush and Nikro. Every job starts with a written price that doesn’t move once work begins, and everything we do carries the 365-Day Done Right Promise. If you’re seeing dust plumes from vents, smelling musty air when the system kicks on, or your energy bills have crept up without explanation, it’s time to have your ductwork looked at. Call (361) 326-5060 and you’ll reach a live person, day or night.
Air Duct Cleaning Services
Our Air Duct Cleaning in Los Angeles and Hollis cover the complete removal of dust, debris, and microbial buildup from your supply and return ductwork using negative-air machines and rotary brush systems. Most homeowners need this every three to five years, sooner if they’ve renovated, had pets, or noticed allergy symptoms worsening indoors. Our crews price the full system in writing before touching equipment, and the 365-Day Done Right Promise means we return at no charge if anything fails within a year. Typical residential systems run $300 – $800 depending on square footage, number of vents, and contamination level.
What’s Included in a Standard Cleaning
We clean all supply and return vents, the main trunk lines, and the plenum connections using a Rotobrush rotary brush system paired with a Nikro negative-air machine that pulls debris out while the brush scrubs the duct walls. We also inspect and replace standard filters if you’ve supplied them, and we photograph the before and after condition so you can see what came out of your system.
When to Schedule Beyond the Normal Cycle
Post-renovation cleanings are critical because construction dust contains drywall particles and insulation fragments that standard HVAC filters won’t catch. We also recommend cleaning after any water intrusion event, even minor ones, since damp ductwork can harbor mold spores that circulate through your home every time the blower runs-see our Air Duct Cleaning Emergency Preparedness Guide for Los Angeles Homes for more.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
HVAC Duct Cleaning
HVAC Duct Cleaning targets the entire forced-air system, not just the visible vent covers, including the evaporator coil housing, blower compartment, and heat exchanger area where debris restricts airflow and strains equipment. You’ll know you need it when rooms heat or cool unevenly, the system runs longer cycles than it used to, or you find yourself changing filters monthly instead of quarterly. Hollis technicians use commercial-grade negative-air equipment to maintain suction throughout the cleaning, and we seal access panels with mastic when we’re done so nothing leaks. Residential HVAC duct cleaning generally falls between $350 and $900 for complete service.
System Performance After Cleaning
Clean ductwork reduces static pressure, which means your blower motor doesn’t work as hard to push the same volume of air. We’ve measured airflow improvements of 15 – 25 percent on systems that hadn’t been cleaned in over five years, and that translates directly to shorter run times and lower utility bills.
Equipment Protection
Dust accumulation on the evaporator coil acts like insulation, reducing heat transfer and forcing the compressor to run hotter. Our HVAC duct cleaning includes visual coil inspection, and if we find heavy buildup, we’ll document it and quote coil cleaning separately so you’re not surprised by an add-on once we’re inside the system.
Vent Cleaning
Vent Cleaning focuses on the supply and return registers, the boot connections behind them, and the first several feet of branch ductwork where most visible debris collects. Homeowners often notice dark staining around ceiling vents, or they feel reduced airflow from specific rooms, both signs that the vent pathway is partially blocked. Hollis crews remove each register, clean the boot and nearby duct with a rotary brush, and reinstall everything properly sealed. Individual vent cleaning runs $25 – $45 per register when done as standalone service, or it’s included in whole-system pricing.
Register and Grille Restoration
Metal registers with layered paint or yellowed plastic grilles get hand-cleaned and restored on site, not just wiped down. We check for broken damper tabs and missing screws too, small details that affect how well you can balance airflow room to room.
Odor Source Identification
Musty smells localized to one or two vents usually point to a moisture issue in that branch line, not the whole system. Our vent cleaning service includes moisture meter readings at each boot, and if we find elevated readings, we flag the location for repair before mold becomes established.
Air Duct Repair
Air Duct Repair addresses disconnected joints, crushed flex duct, corroded metal seams, and failed sealing that lets conditioned air escape into attics, crawl spaces, or wall cavities. You’ll feel this problem as hot or cold spots, whistling noises from pressurized leaks, or utility bills that spike despite normal usage patterns. Hollis technicians inspect accessible ductwork with cameras where needed, quote repairs in writing, and seal with mastic and mechanical fasteners rather than tape that degrades. Repair pricing ranges from $150 for simple reconnection to $600 or more for extensive flex duct replacement in tight attic spaces.
Leak Detection Methods
We pressurize the duct system and use a smoke pencil or theatrical fog to locate leaks that aren’t visible to the eye, especially at joints buried in insulation. This method finds gaps as small as a sixteenth of an inch, which doesn’t sound like much until you add up thirty or forty of them across a whole system.
Duct Sealing Standards
Our repairs follow Manual D airflow specifications where applicable, meaning we size replacement flex duct to match the original design CFM rather than whatever roll happens to be on the truck. Proper sizing prevents velocity noise and ensures each room receives the airflow the system was engineered to deliver.
Ductwork Cleaning
Ductwork Cleaning is the comprehensive service that treats the entire distribution network, from the air handler to the furthest supply vent, using a combination of mechanical agitation and negative-air extraction. This is what most homeowners actually need when they call for “vent cleaning,” since isolated register cleaning doesn’t address the trunk lines where the majority of debris accumulates. Hollis crews access the system through existing service openings or carefully cut new ones where code allows, then seal them properly afterward. Whole-home ductwork cleaning for a typical 2,000-square-foot residence runs $400 – $850.
Trunk Line Access Strategy
Main trunk lines often lack sufficient access panels from original construction, so we cut precision openings at strategic points to ensure the rotary brush reaches every horizontal and vertical run. Each access point gets a sealed cover plate, not tape, so your ductwork maintains its structural integrity and doesn’t leak conditioned air.
Post-Cleaning Verification
We run a final negative-air test after ductwork cleaning to confirm suction is consistent across all branches, which proves we haven’t left blockages or disconnected anything during the process. You’ll receive photos of the cleaned interior and the verification readings before we pack up.
Air Duct Inspection
Air Duct Inspection is the diagnostic first step that determines whether you actually need cleaning, repair, or just a filter change, saving you money on unnecessary services. We recommend it if you’re unsure when the system was last serviced, if you’ve just purchased a home, or if you’re experiencing symptoms but can’t pinpoint the cause. Hollis technicians use borescope cameras that feed live video to a handheld monitor, so you see exactly what we see inside your ducts. Standalone inspections run $100 – $200, and that fee applies toward any cleaning or repair work you authorize the same day.
Inspection Documentation
Every air duct inspection includes timestamped video files and a written condition report that notes duct material, approximate contamination level, visible damage, and any code violations like unlined return plenums in garage installations. This documentation belongs to you, whether or not you hire us for follow-up work.
New Home Purchase Reviews
Pre-closing inspections frequently reveal construction debris, discarded food wrappers, and even pest activity that the seller’s disclosure didn’t mention. We’ve found enough material in new-build ducts to fill a shop vacuum, all of it circulating through the system from day one if not removed.
Residential Air Duct Cleaning
Residential Air Duct Cleaning from Hollis is designed for single-family homes, townhouses, and condominiums with forced-air heating and cooling systems up to roughly 4,000 square feet. The service takes two to four hours for most homes, with larger or heavily contaminated systems running longer, and we protect floors and furnishings with drop cloths as part of The Garrison Standard. Our crews work quietly and methodically, and we verify background checks annually so you’re comfortable with who’s in your home. Residential pricing starts around $300 for compact homes and ranges to $800 or more for multi-zone systems with fifteen or more vents.
Family-Specific Considerations
Homes with allergy sufferers, newborns, or elderly residents benefit from more frequent cleaning cycles because these groups are more sensitive to airborne particulates. We use HEPA-filtered collection equipment on every residential job, not just as an upsell, so what we remove doesn’t re-enter your living space through the vacuum exhaust.
Pet Household Protocols
Animal dander is lightweight and adheres to duct walls more stubbornly than ordinary dust, so our residential air duct cleaning for pet homes includes extended rotary brush contact time and a thorough filter compartment cleaning. We also check for pet hair accumulation on the blower wheel, which restricts airflow even when ducts themselves are clean.
Commercial Air Duct Cleaning
Commercial Air Duct Cleaning serves office buildings, retail spaces, restaurants, medical clinics, and light industrial facilities with larger rooftop units, VAV boxes, and extensive duct networks. These systems move more air through more complex architecture, and contamination builds faster due to higher occupancy and operational hours. Hollis commercial crews scale equipment accordingly, using Nikro high-capacity negative-air machines and multiple rotary brush units to maintain schedule efficiency. Commercial projects are quoted individually based on square footage, system complexity, and access constraints, with typical small-office jobs starting near $800 and large facilities running into the thousands.
After-Hours and Weekend Scheduling
We coordinate commercial work around your operating hours so we don’t disrupt employees, customers, or patients. Our crews can start at 6 PM on a Friday and finish before Monday opening if the scope allows, and we always clean our work area before leaving so your maintenance staff isn’t stuck with our debris.
Compliance Documentation
Many commercial leases and insurance policies require periodic duct cleaning with dated service records. Hollis provides itemized invoices, before-and-after photos, and contaminant disposal documentation that satisfies most property management and regulatory audit requirements.
Brands We Service
We’ve serviced thousands of systems with Honeywell media air cleaners and electronic air cleaners, and we stock replacement filters and prefilters for their most common residential models so you don’t wait for a parts order. Aprilaire whole-house humidifiers and dehumidifiers integrated with duct systems are familiar territory for our technicians, including pad replacement, drain line clearing, and control calibration. Rotobrush equipment is what we run in our own vans, so we know these machines inside and out, both as operators and as maintenance technicians keeping them field-ready.
We’ve also worked extensively with Nikro negative-air systems, Abatement Technologies HEPA filtration products, and Guardsman filter media. Whether you have Honeywell, Aprilaire, or any other make of HVAC equipment or air filtration device, we can inspect, clean, and advise on what it needs to perform as designed.
Signs You Need a Pro Right Now
- Visible dust plumes when the system starts. If you see particles shoot from vents the moment the blower kicks on, your ducts are holding enough debris to recirculate with every cycle. This isn’t normal settling; it’s active contamination of your breathing air.
- Uneven heating or cooling from room to room. When one bedroom stays frigid in winter while the kitchen overheats, blocked or leaking ducts are often the culprit. Your HVAC equipment works harder to compensate, shortening its lifespan and inflating your energy bills.
- Persistent musty or chemical odors. Smells that intensify when the system runs indicate microbial growth, pest presence, or absorbed volatile compounds in the duct lining. Standard air fresheners mask the symptom without addressing the source.
- Excessive dust accumulation on surfaces within days of cleaning. If you’re dusting twice a week and still seeing buildup, your ducts are likely the distribution network for particulate that should have been filtered out. Clean ducts don’t eliminate all dust, but they dramatically reduce the replenishment rate.
- Unexplained increase in allergy or respiratory symptoms at home. When family members feel worse indoors than out, especially during sleep when the system cycles overnight, contaminated ductwork is a prime suspect. Pollen, mold spores, and dust mite fragments all colonize duct interiors over time.
Our Process, Step by Step
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Schedule and confirm. When you call (361) 326-5060, a live person answers, checks availability, and sends a written confirmation with your arrival window. We don’t do “sometime between 8 and 5”; we give you a two-hour block and call when we’re en route.
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On-site assessment and written pricing. Our technician arrives uniformed, introduces themselves, and walks your system with you before touching anything. You’ll receive a single flat price for the complete scope, printed on a standard form, with no per-vent add-ons or trip charges buried in fine print.
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Protected setup and access. We lay drop cloths, seal off the work area from living spaces with plastic sheeting where needed, and cut access openings using protocols that preserve duct integrity. Every cut is planned, measured, and sealed with permanent cover plates before we leave.
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Mechanical cleaning with professional equipment. The Rotobrush rotary brush system scrubs duct walls while the Nikro negative-air machine maintains continuous suction, pulling debris through HEPA filtration before any air exhausts. We clean each branch from the vent back to the trunk, then the trunk lines themselves.
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Verification, documentation, and cleanup. We run final airflow tests, photograph cleaned interiors, reinstall all registers, remove protection materials, and leave the site clean. You get the photos, the written completion summary, and the 365-Day Done Right Promise in hand before we pack up.
How Much Does Air Duct Cleaning Cost?
A typical whole-home air duct cleaning runs $300 – $800 depending on system size, contamination level, and accessibility-read our Air Duct Cleaning Cost Breakdown: The Los Angeles Homeowner’s Reference for 2026 for full details. Small homes with eight to ten vents and straightforward basement or crawl space access tend toward the lower end, while larger homes with fifteen or more vents, multiple HVAC zones, or attic ductwork in tight spaces push toward the higher range. Commercial projects start around $800 for small offices and scale based on square footage and system complexity.
Several factors affect where you’ll land in that range. The number of vents matters, but we price by the system, not per register, so you’re not penalized for a home with many small rooms. Contamination level determines how long the rotary brush needs to contact each surface; heavy construction debris or long-neglected systems take more time. Accessibility affects labor hours too, since attic work in July or crawl space work in January moves slower and requires additional safety protocols.
To avoid overpaying, watch out for teaser rates that don’t include the full system. A $99 “whole house special” typically covers only a few vents with aggressive upselling once the technician is inside. At Hollis, the price we write down is the price you pay, and it covers all supply and return vents, trunk lines, and standard filter replacement if you provide the filter. We also include before-and-after photos so you can verify the work was actually performed, not just claimed.
Every estimate we provide is free and carries no obligation. We’ll inspect your system, explain what we find, and give you a written number you can compare against other bids without pressure or follow-up harassment.
Where We Work
Hollis Air Duct Cleaning serves homeowners and businesses across the United States through a network of independently owned and operated local crews, each adhering to The Garrison Standard. Every location runs the same equipment roster, the same pricing discipline, and the same 365-Day Done Right Promise, but crews live and work in the communities they serve. You’ll speak with a live person when you call, and the technician who arrives will be accountable to a local owner who answers for the work.
Frequently Asked Questions About Air Duct Cleaning
Air duct cleaning is the mechanical removal of dust, debris, and microbial buildup from the metal or flex ductwork that distributes heated and cooled air throughout your home or building. Professional service uses rotary brushes to dislodge material and negative-air machines to capture it before it re-enters your space. The result is cleaner airflow, reduced strain on your HVAC equipment, and less particulate circulating through your living areas. Call (361) 326-5060 for a free estimate on your system.
Most residential air duct cleaning jobs take two to four hours from arrival to departure, with larger homes or heavily contaminated systems running longer. Commercial projects vary widely based on square footage and system complexity, but we provide a time estimate in writing before starting so you can plan accordingly. We don’t rush; we work methodically through every branch line until the job meets our standard. Call (361) 326-5060 to discuss your timeline.
Whole-home residential air duct cleaning typically costs $300 – $800, with commercial projects starting around $800 and scaling from there. Your exact price depends on system size, contamination level, and accessibility, all of which we assess during a free on-site inspection. We write the price down before any work begins, and it doesn’t change at the door. Call (361) 326-5060 for your specific quote.
Yes, we service Honeywell and Aprilaire equipment regularly, including their media air cleaners, electronic air cleaners, whole-house humidifiers, and integrated filtration systems. Our technicians carry common replacement filters and understand how these components interact with your ductwork during cleaning. We also service all other major brands and most proprietary systems found in residential and light commercial buildings. Call (361) 326-5060 to confirm compatibility with your specific model.
Our phones are answered by a live person 24 hours a day, 7 days a week, and we prioritize urgent situations like post-water-intrusion cleanings or contamination events that affect occupant health. While most duct cleaning is scheduled in advance, we maintain flexibility for genuine emergencies and can often deploy within 24 – 48 hours for critical cases. The dispatcher will assess your situation and give you an honest timeline. Call (361) 326-5060 any time to discuss urgency.
Every Hollis air duct cleaning job is backed by the 365-Day Done Right Promise: if the work fails within a full year, we return and make it right at no charge, including a free second visit if needed. This isn’t a vague “satisfaction guarantee”; it’s a written commitment that specifies the duration, the coverage, and the remedy. We also provide before-and-after photos so you have visual proof of the work performed. Call (361) 326-5060 with any warranty questions.
Clear a path to your HVAC equipment and the vents in each room, and secure pets in a separate area so our technicians can move efficiently without risk of escape or injury. We bring our own drop cloths and protection materials, so you don’t need to cover furniture yourself, though removing fragile items from immediate work zones is helpful. If you’d like us to replace your filter during the visit, have a new one on hand or let us know your filter size when you schedule. Call (361) 326-5060 and we’ll walk you through anything specific to your home.
Schedule Your Air Duct Cleaning Service Today
Call (361) 326-5060 now and you’ll reach a live person, not a voicemail loop or callback queue. We’ll schedule your free estimate, arrive inside the quoted window, and give you a written price before any work starts. Every job carries the 365-Day Done Right Promise, and there’s no obligation until you approve the scope in writing. Get your ducts cleaned the right way, by a crew that shows up squared away and stands behind its work for a full year.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving homeowners and businesses nationwide since 2004.