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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AfterFast, Reliable Air Duct Cleaning Across Simi Valley
Air duct cleaning for a typical Simi Valley home runs $350 – $650 per HVAC system, with most appointments completed in a single morning or afternoon. If your house has multiple systems, we price each one separately so you know the full cost before we start. Call (361) 326-5060 for a free estimate.
We’ve been sending crews to Simi Valley since we opened our Los Angeles scheduling office, and we know the difference between a valley-floor tract home off Cochran Street and a hillside place in Wood Ranch catching the full force of the Santa Susana Pass winds. That local knowledge changes how we approach the job. Homes near the pass collect a different kind of dust than homes near the Simi Valley Town Center, and we adjust our equipment and time estimates accordingly. Our technicians arrive uniformed, background-checked, and inside the quoted window, because showing up when we said we would is the first part of doing the job right.
Why Hollis Air Duct Cleaning Is Simi Valley’s Preferred Air Duct Cleaning Company
Simi Valley homeowners call us back because we write the price down before we touch anything, and that number doesn’t move at the door. The 365-Day Done Right Promise covers every job in writing: 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.
Our phone lines are answered by a live person 24 hours a day, 7 days a week. No voicemail loops, no callback queues, no waiting until Monday to schedule. When you call (361) 326-5060, you talk to someone who can book your appointment.
Technicians follow The Garrison Code on every Simi Valley job: arrive inside the window, price in writing, complete the work by the book, leave the site clean. We use Rotobrush rotary brush systems and Nikro negative-air machines, the same equipment commercial crews use, and we explain what each tool does before we start.
Roy Castellanos, who leads Hollis Air Duct Cleaning, built this operation on the principle that a homeowner should never have to guess what they paid for, especially for work they can’t see inside their walls.
HVAC Duct Cleaning in Simi Valley
HVAC Duct Cleaning in Simi Valley means cleaning the full network of supply and return ducts, registers, grilles, and the air handler for each separate heating and cooling system in your home. Most Simi Valley houses built from the late 1960s through the 1990s have long duct runs through hot attic spaces, and many hillside homes in Royal Oaks or Wood Ranch run multiple systems to handle multi-story layouts. A typical residential HVAC duct cleaning in Simi Valley runs $350 – $650 per system depending on accessibility, duct length, and how much Santa Susana Pass dust has accumulated.
We don’t quote one flat rate for the whole house and then discover a second or third system in the attic. Each system gets its own written price before work starts.
Multi-System Homes and Per-System Pricing
A two-story home near Santa Susana Pass with three separate HVAC systems needs three separate cleaning setups, three negative-pressure containment zones, and three camera inspections. We price each system individually so you know exactly what the full job costs. No surprises when the technician opens the attic hatch and finds a third air handler.
Camera Documentation for Hidden Ductwork
Slab-foundation tract homes throughout Simi Valley have duct runs behind drywall and through inaccessible soffits. We run a video inspection before and after cleaning so you see the condition of the ducts you’ll never otherwise see. The footage goes on a USB drive or gets emailed to you. Documentation is part of the job, not an upsell.
Vent Cleaning in Simi Valley
Vent Cleaning in Simi Valley covers the supply and return registers, grilles, and visible vent openings where air enters and exits your living space. After a strong Santa Ana wind event, homeowners across Simi Valley notice reddish-brown dust caked on vent covers, especially in hillside neighborhoods catching direct pass winds. A standard vent cleaning for a typical Simi Valley home runs $150 – $300 as a standalone service, or it’s included when you book full HVAC duct cleaning per system.
Surface wiping doesn’t cut it here. The fine dust from the Santa Susana Pass is abrasive and works its way into the vent mechanism itself.
Register Removal and Deep Cleaning
We remove each register, clean it outside the living space with agitation tools and HEPA-contained vacuums, and inspect the boot and first few feet of duct behind it. This matters in Simi Valley because the pass dust settles heavily in these transition points and gets baked on by attic heat.
Return Vent Contamination
Return vents pull air back to the air handler, so they’re dust magnets. In Simi Valley homes with original or first-replacement flexible ductwork, degraded return lines near the vent can shed liner particles that show up as fine gray or reddish debris. We flag this during cleaning and show you on camera.
Trusted Brands We Service in Simi Valley
We clean and service duct systems connected to all major HVAC brands, and we stock filtration products from Aprilaire, Honeywell, and Guardsman for Simi Valley customers who want to upgrade while we’re already on site. Our equipment roster includes Rotobrush rotary brush systems for mechanical agitation and Nikro negative-air machines for source removal, the same tools specified for commercial jobs. If your system needs a filtration upgrade after cleaning, we carry the parts and install them during the same visit. No second trip, no waiting on a parts order from out of state.
Common Air Duct Cleaning Problems We See in Simi Valley Homes
- Multi-system homes quoted as single-system jobs. Many Simi Valley tract homes from the 1970s and 1980s have two or three HVAC systems, especially larger hillside properties. A quote that assumes one system leaves two-thirds of the ductwork uncleaned and the homeowner paying more later.
- Santa Susana Pass dust requiring more than standard vacuuming. The fine reddish-brown abrasive dust that funnels through the pass during Santa Ana events coats duct interiors and bonds to flex duct lining. Rotary brush agitation with negative-air containment is necessary to dislodge it, not just a truck-mounted vacuum at the registers.
- Degraded flexible ductwork in hot attics. Simi Valley’s summer attic temperatures regularly exceed 140°F, accelerating the breakdown of original or first-replacement flex duct. Crumbling liner material enters the airstream and shows up as dust that reappears soon after cleaning if the degraded runs aren’t identified and flagged.
- Long slab-foundation runs with hidden dust pockets. Ranch and two-story tract homes on slab foundations have supply and return lines running through soffits, walls, and inaccessible chases. Without camera inspection, cleaning only reaches the accessible portions and leaves debris behind.
Pricing for Air Duct Cleaning in Simi Valley, CA
A typical residential HVAC duct cleaning in Simi Valley runs $350 – $650 per system. Vent cleaning alone runs $150 – $300. Commercial duct cleaning starts around $800 and scales with square footage and system count. What moves the price: number of HVAC systems, accessibility of duct runs, whether camera inspection is included, and how much Santa Susana Pass dust has accumulated since the last cleaning.
We write the price down before any work starts. Each system gets its own line item. No per-vent pricing, no teaser coupon that balloons at the door. You get the full cost in writing, and it does not change once our technician begins work. Estimates are free. Call (361) 326-5060 to schedule.
We Also Serve Cities Near Simi Valley
Our crews work throughout Ventura County and the western San Fernando Valley, including Air Duct Cleaning in Simi Valley proper plus Moorpark, Oak Park, Thousand Oaks, and Westlake Village. Scheduling and dispatch are coordinated from our Los Angeles office, with local technicians serving each area. If you’re in a nearby city and need Air Duct Cleaning priced by the system and documented on camera, we cover your area.
Serving Simi Valley, CA - Our Local Coverage Area
We’re based in the Simi Valley 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 Simi Valley
Yes, we charge per system, and it matters because each system requires its own negative-pressure setup, agitation cycle, and camera inspection. A home in Wood Ranch with three separate air handlers has three isolated duct networks, and cleaning only one leaves two-thirds of the home’s air distribution contaminated. Call (361) 326-5060 and we’ll walk through your system count before quoting.
The fine reddish-brown dust that funnels through the Santa Susana Pass during Santa Ana wind events is abrasive and bonds to duct interiors, especially flexible duct lining. Standard vacuuming at the registers doesn’t dislodge it. We use Rotobrush rotary agitation combined with Nikro negative-air containment to break the dust loose and pull it to HEPA filtration without releasing it into your living space. Call (361) 326-5060 to schedule after your next wind event.
Most Simi Valley homes benefit from cleaning every three to five years, but hillside homes in the direct path of Santa Ana winds, especially in Wood Ranch and Royal Oaks, often need service every two to three years. After a major wind event, check your return vents for reddish-brown accumulation. That’s your indicator. Call (361) 326-5060 for a free inspection if you’re unsure.
You should receive before-and-after video footage of every duct run, a written invoice itemized per system, and a copy of the 365-Day Done Right Promise. We provide this on every Simi Valley job as standard practice, not as an add-on. If a company won’t show you what they cleaned, you don’t know what you paid for. Call (361) 326-5060 and ask about our documentation process.
Yes, we regularly clean original and first-replacement ductwork in Simi Valley’s ranch and two-story tract homes, and we know the common failure modes: degraded flex duct in hot attics, long slab-foundation runs with hidden dust pockets, and supply boots that have separated from drywall. We flag degradation we find on camera and explain whether cleaning is safe or if a section needs repair first. Call (361) 326-5060 to discuss your home’s specific duct configuration.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Simi Valley since 2004.