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 Norco
Air duct cleaning in Norco typically runs $350 – $650 for a whole-house residential system and is scheduled by appointment with our Inland Empire office. We’re the local crew that understands what Norco’s horse-country environment does to your ductwork, because we’ve cleaned the returns on homes off Sixth Street, along the Santa Ana River trail, and in the newer tracts on the east side. Our technicians arrive in uniform, background-checked, with the job priced in writing before any equipment touches your registers. Call (361) 326-5060 for a free estimate.
Dispatch and scheduling for Norco are coordinated from our Riverside-San Bernardino office, but the crews serving you live and work in this area. They know the difference between a mid-century ranch on the older avenues and a newer build with flex-duct in the attic, and they know both collect grit faster than standard suburban dust. That’s not a sales pitch. It’s the reason we carry HEPA-filtered negative-air machines and rotary brush systems on every truck.
Why Hollis Air Duct Cleaning Is Norco’s Preferred Air Duct Cleaning Company
We’ve been part of the Garrison Partners family since 2004, and our standard hasn’t changed: written price, written guarantee, show up when we said. In Norco, that discipline matters more than in most markets because the dust here isn’t ordinary. Horse dander bonded to fine silica from the Santa Ana River bottom soil is sticky and abrasive. It doesn’t sweep out with a household vacuum. Our crews use Rotobrush rotary agitation and Nikro negative-air HEPA systems to extract it without re-depositing downstream.
Every job is covered by our 365-Day Done Right Promise. If the work fails within a year, we return and make it right at no charge, including a free second visit. No negotiation, no runaround. The price you approve in writing before we start is the price at completion. We’ve seen too many Norco homeowners burned by low teaser quotes that balloon once the van is in the driveway. That doesn’t happen here.
Our phones are answered by a live person 24 hours a day, 7 days a week. You’ll know the technician’s name before they arrive, and they’ll arrive inside the quoted window. That’s The Garrison Standard, and it’s how every independently owned Hollis location operates.
Air Duct Repair in Norco
Air Duct Repair in Norco addresses the cracked flex-duct, separated trunk-line seams, and collapsed returns that develop when abrasive river-bottom sand and horse dander grind against duct walls over years of Santa Ana wind cycles. Repair runs $200 – $450 for typical residential fixes, with full trunk-line replacement on older homes reaching $800 – $1,500 depending on attic access and duct diameter. We inspect with a video camera before quoting, so you see the damage and we both agree on the scope.
Cracked Flex-Duct and Seam Separation
Flex-duct in Norco’s older ranches fatigues faster than in coastal climates. The abrasive dust load acts like sandpaper on the inner liner, and summer attic heat hardens the adhesive. We cut out damaged sections and splice in new R-8 insulated flex with mechanical fasteners and mastic sealant, not tape that will dry and fail. The repair is photographed before and after for your records.
Collapsed Returns and Airflow Restoration
When returns clog with compacted dander and sand, the blower motor pulls higher amperage and airflow drops at the far bedrooms. We see this on homes backing the river trail. Repair includes mechanical agitation to loosen the packed material, negative-air extraction, and reinforcement of any sagging duct that created the low-velocity zone where debris collected.
Ductwork Cleaning in Norco
Ductwork Cleaning in Norco removes the accumulated load of horse dander, river-bottom silica, pollen, and fire-season ash that standard suburban cleaning protocols miss. A typical whole-house cleaning runs $350 – $650, with larger homes or properties with outbuilding runs reaching $750 – $950. We clean every branch run from register back to trunk, the trunk line itself, and the air handler cabinet, with HEPA-filtered negative air maintained at the furnace throughout.
Negative-Air Method with HEPA Filtration
We connect a Nikro negative-air machine to your air handler and pull 2,000 – 3,500 CFM through the system while agitation tools knock debris loose. The HEPA filter captures 99.97% of particles down to 0.3 microns. On Norco properties, this matters because the dander-and-silica mix is fine enough to pass through standard filters and re-deposit in supply ducts if not contained at source.
Register-to-Trunk Cleaning and Verification
Every supply and return register comes off. We clean the boot, the branch run, and the trunk connection, then seal everything back with new gaskets where needed. After cleaning, we run a video inspection of the trunk line and show you the footage. You’ll see the difference, and you’ll know the job was done rather than taken on faith.
Trusted Brands We Service in Norco
Our trucks carry professional-grade equipment from Rotobrush, Nikro, and Abatement Technologies, the same tools commercial crews use in hospitals and schools. For filtration upgrades, we stock Honeywell, Aprilaire, and Guardsman products sized to Norco’s dust load. We don’t sell what you don’t need. If your current filter is adequate, we’ll say so. If the horse dander and river sand are overwhelming a standard 1-inch pleated filter, we’ll explain why a 4-inch media cabinet or electrostatic upgrade pays for itself in reduced cleaning frequency and blower motor strain. Parts are stocked locally through our Inland Empire supply chain, so filter upgrades and minor repairs don’t wait on shipping.
Common Air Duct Cleaning Problems We See in Norco Homes
- Vacuum-only blow-and-go jobs that redeposit debris. Without negative-air containment and HEPA filtration, stirring loose Norco’s sticky dander-and-sand mix just pushes it downstream into supply ducts. We see the evidence on camera: clean first ten feet, packed debris beyond the first turn.
- Outbuilding and detached-garage runs skipped entirely. Horse properties often have flex-duct feeding a shop, tack room, or guest quarters. If the main house gets cleaned but the outbuilding doesn’t, that duct keeps feeding grit back into the system every time the blower cycles. We clean it all or flag why we can’t.
- Fixed annual intervals ignoring actual loading. Homes on unpaved access roads or backing the Santa Ana River trail can load up in months, not years. A routine annual visit misses the window before fire season, when ash compounds the existing dust load and AC strain peaks.
- Original ductwork in mid-century ranches never properly maintained. The older avenues off Sixth Street and Hamner Avenue have homes with galvanized steel or early flex-duct that has never been opened. Decades of compacted grit reduce airflow, overwork the blower, and spike energy bills.
Pricing for Air Duct Cleaning in Norco, CA
| Service | Typical Range in Norco |
|---|---|
| Whole-house residential duct cleaning (up to 2,500 sq ft) | $350 – $550 |
| Whole-house residential duct cleaning (2,500 – 4,000 sq ft) | $550 – $650 |
| Properties with outbuilding/shop duct runs | $750 – $950 |
| Air duct repair (typical residential) | $200 – $450 |
| Full trunk-line replacement | $800 – $1,500 |
| Video inspection with written report | $150 – $250 (credited toward cleaning if scheduled) |
What moves the price: square footage, number of registers, accessibility of attic ductwork, presence of outbuilding runs, and the condition we find on camera. We don’t quote per-vent or bait with a low teaser that jumps at the door. One flat price per system, agreed in writing, before any work starts. Estimates are free. Call (361) 326-5060 to schedule.
We Also Serve Cities Near Norco
Our crews clean ductwork throughout the Inland Empire, including Air Duct Cleaning in Norco and surrounding communities. We regularly schedule appointments in Corona, Chino, Chino Hills, and Ontario, with routing that keeps arrival windows tight and fuel costs down. Same equipment, same written standard, same 365-Day Done Right Promise at every stop.
Serving Norco, CA - Our Local Coverage Area
We’re based in the Norco 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 Norco
Every 12 – 18 months for homes with horses on-site or backing the Santa Ana River trail, and every 2 – 3 years for standard suburban lots without livestock exposure. The dander-and-silica mix in Norco compacts faster than ordinary dust, so waiting for a fixed calendar date can mean running a clogged system through fire season. Call (361) 326-5060 and we’ll inspect on camera to tell you where your property falls.
Yes, and we recommend it for any outbuilding tied to the main HVAC system or sharing a blower. Skipping these runs leaves a reservoir of grit that recirculates into the main house. We price outbuilding runs separately so you know exactly what each system costs before we start. Call (361) 326-5060 for an exact quote.
It sticks to duct walls, compacts in low-velocity zones, and acts as an abrasive that accelerates flex-duct liner wear. The blower motor works harder against restricted returns, drawing more amps and shortening its lifespan. You’ll feel it as weak airflow at distant registers and smell it as a persistent trail-dust odor when the AC cycles. Our negative-air HEPA method extracts it without re-depositing downstream.
Before, if your ducts are already loaded with dander and sand. After, if fire season ash has compounded an existing clean system. The ideal window is late spring, after peak pollen and before Santa Ana wind events peak. We inspect on camera and tell you honestly which timing applies to your property’s current load. Call (361) 326-5060 to schedule.
We show you before-and-after video of your own trunk line, we leave the site clean, and we put the 365-Day Done Right Promise in writing. If airflow doesn’t improve, if odors persist, or if any register shows debris we missed, we return and make it right at no charge, including a free second visit. No generic “satisfaction guaranteed” language. Specific terms, specific coverage, in writing on every job. Call (361) 326-5060 to schedule your free estimate.
Ready to get your Norco home’s ductwork inspected and priced in writing? Call Hollis Air Duct Cleaning at (361) 326-5060. Our Air Duct Cleaning team serves Norco with background-checked, uniformed technicians, professional-grade Rotobrush and Nikro equipment, and the 365-Day Done Right Promise backed in writing on every job. Estimates are free, and phones are answered by a live person 24/7.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Norco and the Inland Empire since 2004.




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