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.
Fast, Reliable Air Duct Cleaning Across Montclair
Air duct cleaning in Montclair typically runs $350 – $650 for a full residential system and is usually completed in one scheduled visit. Hollis Air Duct Cleaning dispatches crews from our Inland Empire office to serve Montclair directly, with scheduling coordinated for homes from the older ranch neighborhoods near Holt Boulevard to the newer townhomes along the eastern edge. We’ve worked on enough Montclair duct systems to know the difference between a sealed modern run and the original gravity-furnace ductwork that still moves air in hundreds of local homes built in the 1950s and 1960s. Call (361) 326-5060 for a free estimate with a written price before any work starts.
Why Hollis Air Duct Cleaning Is Montclair’s Preferred Air Duct Cleaning Company
Hollis has been part of the Garrison Partners family since 2004, and our crews have handled enough Montclair jobs to read a duct system by the neighborhood. In the post-WWII tracts near the 10 freeway, we expect unsealed original runs and flex-duct retrofits. Closer to the newer infill, we find tighter systems with different particulate loading from freeway dust.
Our technicians are background-checked and uniformed, and they operate under The Garrison Code: arrive inside the quoted window, price the job in writing before touching equipment, complete the work by the book, and leave the site clean. Every job carries our 365-Day Done Right Promise in writing. If the work fails within a year, we return and make it right at no charge, including a free second visit.
Phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops. No callback queues.
Air Duct Repair in Montclair
Air Duct Repair in Montclair usually means fixing the damage that decades of Santa Ana wind-driven dust and thermal cycling have done to original metal ductwork in the city’s 1950s – 60s ranch homes. We see separated seams, crushed flex-duct retrofits, and return plenums that have pulled away from gravity furnace cabinets. Typical repair costs in Montclair range from $200 – $450 for localized seam sealing and small section replacement, and $500 – $1,200 for extensive reworking of original runs. We always inspect with a camera first, then write the price down before any repair begins.
Sealing Unsealed Original Runs
Many Montclair gravity furnaces sit on original duct runs that were never properly sealed at the joints. Wind pressure pushes fine silt through these gaps continuously. We apply duct sealing mastic and mechanical fasteners to close the pathways, then verify with a pressure test.
Flex-Duct Retrofit Failures
Homeowners in older Montclair neighborhoods often had flex duct installed as a quick upgrade. After years of heat and rodent activity in crawl spaces, we find collapsed sections and torn sleeves. We replace with properly supported, insulated flex or transition back to rigid metal where the layout allows.
Ductwork Cleaning in Montclair
Ductwork Cleaning in Montclair is different from routine maintenance in sealed modern systems. The combination of Santa Ana winds from October through January and unsealed original ductwork in the city’s ranch-home stock means debris loads here are event-driven, not calendar-driven. A typical full-system cleaning in Montclair runs $350 – $650 for residential properties, with commercial systems quoted on site. We use source-removal methods that meet NADCA standards, not surface wiping or register vacuuming.
Negative-Air Source Removal
Our Nikro negative-air machines pull a continuous vacuum on the duct system while we agitate debris with rotary brushes and compressed-air whips. This captures fine desert silt and wildfire ash at the source, rather than pushing it into the living space. HEPA filtration on the exhaust prevents recontamination.
Camera Verification Before and After
We run video inspection through the full system at the start and end of every Montclair job. The homeowner sees the condition of the duct runs directly. After cleaning, the camera confirms the debris is gone and the joints are intact. We provide the footage on request.
Trusted Brands We Service in Montclair
Hollis carries professional-grade equipment from Rotobrush, Nikro, and Abatement Technologies on every Montclair job, and we stock filtration products from Honeywell, Aprilaire, and Guardsman for replacement needs. These are the same tools and components used in commercial HVAC maintenance, sized appropriately for residential systems. When a Montclair homeowner needs a filter upgrade after cleaning, we can source the correct MERV-rated replacement on the spot rather than sending them to a hardware store with a part number. Our rotary brush systems handle the tight turns common in older Montclair ranch homes where modern duct robots won’t fit.
Common Air Duct Cleaning Problems We See in Montclair Homes
- Wind-driven silt reloading through unsealed joints. After the first strong Santa Ana wind of the season, we get calls from neighborhoods near Holt Boulevard and the 10 freeway where fine desert dust has pushed straight into return ducts through gaps that were never sealed when the home was built in the 1950s or 1960s.
- Gravity furnace ductwork that has never been opened. Many original systems in Montclair’s post-WWII tracts have duct runs that haven’t been accessed since installation. Decades of debris accumulate in the low-velocity return plenums and supply boots.
- Detached garage and outbuilding systems left untouched. Larger Montclair lots often have separate ductwork or dryer venting to shops and garages. These become independent dust reservoirs that recirculate into the main house if ignored.
- Shop-vac “cleaning” that leaves fine particulate behind. Some competitors run a vacuum at the register and call it done. Fine wildfire ash and desert silt lodge in duct pores and release later. We see the aftermath when homeowners call us to finish the job properly.
Pricing for Air Duct Cleaning in Montclair, CA
A typical residential full-system cleaning in Montclair runs $350 – $650, depending on the number of air handlers, the accessibility of the duct runs, and whether we’re dealing with original metal ductwork or later flex-duct retrofits. Commercial systems and larger homes with multiple zones are quoted individually after inspection. Add-on services like dryer vent cleaning ($120 – $200) or duct sealing ($250 – $500) are priced separately and listed in writing before work begins.
What moves the price: homes with original gravity-furnace ductwork usually take longer because of the careful handling required and the extent of debris accumulation. Tighter modern systems clean faster but may need more attention to filtration upgrades afterward. We do not price per vent. One flat price per system, agreed before we start, and it does not change at the door.
Call (361) 326-5060 for a free estimate. We’ll inspect with a camera, write the price down, and let you decide.
We Also Serve Cities Near Montclair
Hollis crews work throughout the eastern San Gabriel Valley and western Inland Empire. If you’re in Montclair or nearby, we also cover Claremont, Ontario, Pomona, and La Verne from the same dispatch point. Our Air Duct Cleaning team carries the same equipment and written-price standard to every job in the region.
Serving Montclair, CA - Our Local Coverage Area
We’re based in the Montclair 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 Montclair
In Montclair’s 1950s – 60s ranch homes with original gravity-furnace ductwork, cleaning should be event-driven rather than calendar-driven. After each significant Santa Ana wind period from October through January, inspect your supply registers for dust accumulation and weak airflow. Homes with sealed modern duct systems can follow a longer interval, but unsealed original runs reload with fine silt every season. Call (361) 326-5060 after the first hard wind of fall and we’ll camera-inspect to tell you if it’s time.
The combination of Santa Ana wind patterns, proximity to the freeway’s particulate load, and older unsealed ductwork creates a perfect pathway for dust. Wind pressure differentials across your home pull outdoor air through every gap in the building envelope, and unsealed return ducts act as collection points. The 10 freeway corridor sees heavier loading than quieter interior Montclair neighborhoods. We address this with source removal plus sealing of accessible joints.
Yes, but it requires a different approach than modern forced-air systems. Gravity furnaces operate at lower pressure and have larger, simpler duct runs that need gentle agitation and careful camera navigation. Our Rotobrush systems adjust to the duct size, and our technicians are trained to avoid disturbing the fragile connections between original plenums and supply boots. We inspect first, explain what we find, and write the price before touching anything.
Yes. Many Montclair properties, especially the larger lots in the older neighborhoods, have separate duct systems or dryer venting to detached structures. These systems accumulate dust independently and can recirculate into the main house if they share air pathways. We include outbuilding systems in our inspection and quote them separately if cleaning is needed. One flat price per system, written down before we start.
For Montclair’s dust-loaded environment, we typically recommend MERV 11 – 13 filters for homes with modern forced-air systems that can handle the airflow restriction. Original gravity furnaces and older systems may need MERV 8 – 10 to avoid straining the blower. We stock Honeywell, Aprilaire, and Guardsman filtration products and can match the correct rating to your specific system after cleaning. The right filter extends the benefit of the cleaning through the next wind season.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Montclair and the Inland Empire since 2004.




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