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 HVAC Cleaning Across Simi Valley
HVAC cleaning in Simi Valley typically costs between $350 and $750 for a complete system cleaning, and most jobs are scheduled within a few days. We’re Cardinal Air Duct Cleaning, part of the Relay Home Co. family founded in 2005. We serve homeowners across Simi Valley with transparent pricing and a process you can see for yourself. If your AC has been running hard through the heat and you’re noticing more dust on the registers, call us at (737) 727-2314 for a free estimate.
Why Cardinal Air Duct Cleaning Is Simi Valley’s Preferred HVAC Cleaning Company
Simi Valley homeowners keep calling us because we show up with a written price in hand and never change it at the door. That’s rare in this trade. Omar Haddad leads our team with a simple rule: the customer knows exactly what the job costs before a single duct is touched. No per-vent games, no surprise add-ons after the tech is already inside.
We’re held to The Relay Visibility Guarantee. Every booking comes with a live trackable arrival time, before-and-after photos of your own ducts, and a digital invoice payable from your phone. Simi Valley homeowners who book through us can watch the van arrive like they track a package. The tech is background-checked, uniformed, and you’ll know their name before they knock.
Our 365-Day Done Right Promise covers every job without exception. If the work isn’t right within a full year, we return and correct it at no charge. For repairs, that’s a written guarantee plus a free second visit if the repair fails. That’s the longest satisfaction window in the trade, and it applies to every single booking.
Dispatch and scheduling are coordinated from the brand’s Los Angeles office while crews serve Simi Valley locally. That means you get the infrastructure of a larger operation with technicians who know Simi Valley’s neighborhoods, housing stock, and the dust patterns that come with living between the Santa Susana and Simi Hills.
AC Coil Cleaning in Simi Valley
AC Coil Cleaning in Simi Valley means removing the layers of dust, lint, and pollen that collect on your evaporator coils over a long inland cooling season. The evaporator coil is the part that absorbs heat from your home’s air. When it’s coated in debris, it can’t transfer heat efficiently, so your system runs longer and works harder while delivering less cooling. Given Simi Valley’s extreme summer heat, that’s a costly problem.
Most AC coil cleanings in Simi Valley run between $150 and $400 depending on access and how clogged the coil has become. We clean coils during a full HVAC cleaning visit, and we can also clean them as a standalone service if you just had duct work done recently.
Coil Treatment
We apply a coil treatment after cleaning that helps slow future buildup and discourages biological growth on the coil surface. In a climate where systems run six or more months of the year, this treatment keeps efficiency from dropping right back down weeks after the cleaning.
When Simi Valley Homeowners Call Us
The typical call starts with weak airflow from the registers or an AC that runs constantly without hitting the thermostat setpoint. Often the furnace filter looks fine, but the coil is matted with a film of dust and pet hair. We see this constantly in older ranch homes off Los Angeles Avenue where systems have been in place for 15 to 20 years.
AC Cleaning in Simi Valley
AC Cleaning in Simi Valley goes beyond the filter and the outside unit. It’s a full cleaning of the supply ducts, return ducts, blower assembly, and air handler cabinet that moves cooled air through your home. In Simi Valley’s inland climate, dust from the surrounding hills and the long stretch of summer heat combine to push more debris through the system than coastal cities like Malibu or Ventura would ever see.
A complete AC Cleaning job in Simi Valley typically runs $350 to $750 for a standard single-system home. The exact figure depends on the number of returns, the duct layout, and the last time the system was cleaned. You’ll get an exact written price before we start, and that price does not change.
Blower Cleaning
The blower motor pushes conditioned air through your ducts. When it’s caked with dust, it moves less air and works harder. We remove the blower assembly where needed, clean the fan blades and housing, and verify airflow improves after the job. Homeowners near the Wood Ranch neighborhood often notice reduced noise after a blower cleaning.
Air Handler Cleaning
The air handler houses the blower, coil, and often the filter. We clean the interior cabinet, drain pan, and coil area so that the air moving through it isn’t picking up debris along the way. This matters in Simi Valley homes where construction dust from newer developments in Big Sky and sustained winds off the hills keep fine particles circulating.
Trusted Brands We Service in Simi Valley
We service all major HVAC brands found in Simi Valley homes: Carrier, Trane, Lennox, Rheem, Goodman, York, and American Standard. Our technicians stock common filter sizes and coil cleaning agents on the truck, so most HVAC Cleaning jobs are completed in a single visit without waiting on parts. If you have a less common brand like Daikin or Mitsubishi, we can still service it. Our team works with Rotobrush brush systems, Nikro HEPA vacuums, and Abatement Technologies containment units. That professional-grade equipment matters in a dusty inland market like Simi Valley, where a shop-vac and a drill brush will not remove deeply embedded debris.
Common HVAC Cleaning Problems We See in Simi Valley Homes
- Supply ducts packed with fine dust from the Santa Susana foothills. The inland position traps airborne dust and pollen between the surrounding hills, and systems here run longer than coastal units, so dust accumulates faster in the supply runs.
- Return air paths coated with pet hair in older ranch homes. Many Simi Valley homes were built in the 1960s through 1980s. Long duct runs with tight bends collect hair and lint quickly, especially in homes with multiple pets.
- Air handler blowers matted with debris that bypassed the filter. A standard one-inch filter catches some particles, but fine dust from the dry inland air can slip through and coat the blower blades over one or two seasons.
- Short-cycling AC units due to blocked evaporator coils. When the coil can’t absorb heat, the system shuts down early and restarts constantly. Homeowners near Erringer Road and Madera Road have described this as the AC turning on and off every few minutes.
Pricing for HVAC Cleaning in Simi Valley, CA
A full HVAC cleaning in Simi Valley typically runs $350 to $750 for a standard home with one system. Coil cleaning alone runs $150 to $400. The honest difference between jobs comes down to the number of return ducts, the size of the home, and how long it’s been since the last cleaning. A two-story home in Indian Hills with two returns and long duct runs will cost more than a compact single-story home near the 118 Freeway. We provide one written price per system before any work starts. That’s it. No per-vent charges, no separate fees for the trunk lines or air handler. Call (737) 727-2314 for a free estimate and we’ll send you an exact quote.
Key Takeaways
- Full HVAC cleaning in Simi Valley: $350 – $750 per system.
- AC coil cleaning: $150 – $400 depending on access and buildup.
- One flat price per system, written before any work starts.
- Before-and-after photos of your own ducts, every time.
- 365-Day Done Right Promise on every booking.
We Also Serve Cities Near Simi Valley
Beyond Simi Valley, our crews regularly serve Moorpark, Oak Park, Thousand Oaks, and Westlake Village. If you’re just outside city limits or live in one of these neighboring communities, the same transparent pricing and before-and-after documentation applies. Call (737) 727-2314 to confirm coverage in 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 HVAC Cleaning in Simi Valley
Most Simi Valley homes need HVAC duct cleaning every 3 to 5 years. Homes with heavy pet traffic, recent construction dust, or residents with allergies may need cleaning every 2 to 3 years. The inland dust load from the Santa Susana and Simi Hills is a real factor here, and systems that run nearly year-round accumulate debris faster than coastal systems. If you’ve never had the ducts cleaned in a home you’ve lived in for over five years, it’s worth a camera inspection. Call (737) 727-2314 and we’ll walk you through what we see.
We charge one flat price per system, never per vent. Per-vent pricing pushes homeowners to skip the trunk lines and air handler, which is where most debris settles in Simi Valley’s hot, dry environment. Our written quote covers the entire system: supply ducts, return ducts, air handler, blower, and coil access. The price you see is the price you pay.
We use Rotobrush agitation tools under negative pressure to loosen and extract debris, then run Nikro HEPA vacuums to capture fine particles without redistributing them through your home. Abatement Technologies containment units keep the work area sealed. After the cleaning, we run a camera inspection and show you before-and-after photos of your own ducts. Some companies only vacuum the easy-to-reach registers and leave the real dust load inside the ducts. We don’t do that.
Yes. We recommend combining coil cleaning with a full duct cleaning because a clean coil with dirty ducts just re-contaminates the coil within weeks. The coil and duct cleaning together typically run $450 to $750 depending on your system. You’ll see the coil before and after, and the improvement in airflow is usually immediate. Call (737) 727-2314 to schedule both in one visit.
Most Simi Valley appointments are scheduled within 3 to 5 business days. We don’t promise same-day service because proper HVAC cleaning takes time and we don’t rush jobs. When you book, you get a live trackable arrival window through The Relay Standard, so you know when the technician is actually pulling up. Call (737) 727-2314 and we’ll find the next open slot.
Get an Honest HVAC Cleaning in Simi Valley
Call (737) 727-2314 today for a free estimate. You’ll speak to a live person, get a written price before any work begins, and see before-and-after photos of your own ducts when the job is done. We serve Simi Valley with flat per-system pricing and the 365-Day Done Right Promise. No per-vent games, no price changes at the door.
Written by Omar Haddad, Owner at Cardinal Air Duct Cleaning, serving Simi Valley since 2005.




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