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 Granite Falls
HVAC cleaning in Granite Falls typically costs $485 – $785 for a full system cleaning of a standard single-family home, and most jobs are completed in 3 – 5 hours. That’s the honest number, written down before any work begins. Our HVAC Cleaning team works throughout the Stillaguamish River valley, where we’ve learned exactly how damp, closed-up winters load duct systems faster than drier climates. Call (737) 727-2314 for a free estimate with a written price you can hold in your hand before we touch a single duct.
Why Cardinal Air Duct Cleaning Is Granite Falls’s Preferred HVAC Cleaning Company
Granite Falls homeowners call us for Air Duct Cleaning in Granite Falls because they want to know two things up front: what the job costs and what we’ll actually do. Omar Haddad, who leads our crew, insists on answering both before the van door opens. That’s the whole operating principle. We write the price down, explain the process in plain terms, and hand you a live arrival window you can track from your phone. No vague estimates. No four-hour arrival spreads.
Our technicians arrive in uniform, background-checked, and carrying professional equipment made by Rotobrush and Nikro. That matters in Granite Falls, where a lot of houses have long trunk runs and deep air handler drops that cheap truck-mounted shop vacs simply can’t reach properly. We pull permits when the job calls for it, and every booking falls under the 365-Day Done Right Promise: if the work isn’t right within a full year, we come back and correct it at no charge.
The Relay Standard is the framework behind every visit. You get a written price before work starts, before-and-after photos of your own ducts, and a digital invoice you can pay by link. It’s how we do every job in Granite Falls, from a compact rambler off Menzel Lake Road to a larger two-story near the Mountain Loop Highway corridor.
Furnace Duct Cleaning in Granite Falls
Furnace duct cleaning in Granite Falls is the job we do most often, and it’s the one that makes the biggest difference in homes along the Stillaguamish valley floor. The work involves placing your system under negative pressure, running agitation tools through every supply and return duct, and capturing loosened debris in a HEPA-filtered vacuum at the source. When we’re done, you get photos of your own registers, not a stock image or a sales photo. The typical cost runs $485 – $685 for a complete furnace duct cleaning in a Granite Falls home, and that price is set before we start.
What the Process Looks Like at Your House
Our tech removes the return grilles and seals the system so the only air path is through the vacuum. Then we send a rotary brush down every run, agitating the dust, pet dander, and fine silt that accumulates during long closed-up winters. The debris goes straight into the vacuum, not back into your living room. On a recent job near the Mountain Loop Highway side of town, our tech pulled a heavily loaded return drop above the air handler and found damp silt caked on the blower motor wheel, the kind that builds up in a valley house running a whole-house dehumidifier. That’s exactly what furnace duct cleaning is designed to remove.
When Granite Falls Homeowners Should Book It
The short version: if you haven’t had it done in five years, or if you see dust accumulating on registers within days of wiping them, the ducts are loaded. Homes that run dehumidifiers year-round tend to need service more often because moist air carries more particulate that clings to duct walls. Furnace duct cleaning also matters before a new coil replacement, because a clean set of ducts prevents fresh dust from immediately fouling the new equipment.
AC Coil Cleaning in Granite Falls
AC coil cleaning in Granite Falls is the service that directly affects how hard your system works during the valley’s short but muggy summer stretches. When the evaporator coil is coated in a layer of dust and biological film, the system cannot pull heat out of the air efficiently. That means longer runtimes, higher bills, and a house that never quite cools. In Granite Falls, coil cleaning typically costs $225 – $350 when bundled with a full Granite Falls HVAC cleaning, and $300 – $450 as a standalone job.
Evaporator Coil Cleaning and Coil Treatment
We pull the coil access panel and inspect what’s actually there. If the coil is moderately dirty, we clean it in place with a food-safe coil cleaner that dissolves the biofilm and rinses away dust. After cleaning, we apply a coil treatment that slows microbial regrowth, a real concern in the Stillaguamish valley where damp air feeds biological load on HVAC components.
Condenser and Air Handler Cleaning
For outdoor condenser units, we clear the fins, straighten bent coils by hand, and rinse from the inside out so debris doesn’t get pushed deeper into the unit. Inside, the air handler and blower wheel get the same attention. Blower cleaning runs $125 – $175 as an add-on, and it matters because a coated blower wheel moves less air, which makes every other part of the system work harder to compensate.
Trusted Brands We Service in Granite Falls
We service every major furnace and AC brand you’re likely to find in Granite Falls homes: Trane, Carrier, Lennox, Rheem, Goodman, Bryant, York, and American Standard. For filtration, we also carry Guardsman and Honeywell products locally, so we can often replace a worn filter housing or upgrade your media cabinet on the same visit. Our techs stock common filter sizes and coil-safe cleaners for Granite Falls customers, which means fewer return trips and a faster turnaround when your schedule is tight.
Common HVAC Cleaning Problems We See in Granite Falls Homes
- Damp, loaded return drops: Homes in the Stillaguamish valley often run whole-house dehumidifiers, and that moisture-laden air coats the blower motor wheel and return drops with a fine, sticky silt that dry climates never produce.
- Long, lazy return runs: Many Granite Falls houses have long trunk lines with deep drops above the air handler. Cheap per-vent jobs never reach those runs with proper agitation, so the worst buildup stays untouched.
- Mold-adjacent microbial growth on coils: The damp air that keeps moss growing on Granite Falls roofs also feeds biological film on evaporator coils, especially in systems that shut down between heating and cooling seasons without a coil treatment.
- Clogged condensate lines: High moisture means condensate drains in valley homes accumulate biological sludge faster. When the line clogs, water backs into the air handler pan and the system shuts down, often on the hottest day of the year.
Pricing for HVAC Cleaning in Granite Falls, WA
A full HVAC cleaning for a typical Granite Falls home runs $485 – $785, depending on square footage, number of returns, and accessibility of the air handler. Furnace duct cleaning alone is $485 – $685. AC coil cleaning runs $225 – $350 when bundled with a full cleaning, and $300 – $450 standalone. We never charge per vent. The price we agree on is the price you pay, written down before a single duct is touched. The 365-Day Done Right Promise covers every job without exception: if the work isn’t right within a year, we return and correct it at no charge. Call (737) 727-2314 for a free estimate.
We Also Serve Cities Near Granite Falls
Our crews regularly serve HVAC Cleaning in Granite Falls and the surrounding communities, including Lake Stevens, Marysville, Arlington, and Everett. If you’re in one of those areas and your ducts have never been professionally cleaned, the same flat-pricing and 365-Day Done Right Promise applies to every job we book.
Serving Granite Falls, WA - Our Local Coverage Area
We’re based in the Granite Falls 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 Granite Falls
Most Granite Falls homes need a full HVAC cleaning every 4 – 6 years. Homes that run whole-house dehumidifiers, have pets, or sit near the river where damp air carries more particulate may need service every 3 – 4 years. If you’re seeing dust build up on registers within days of wiping them, the ducts are loaded and cleaning will pay for itself in reduced filter loading and better airflow. Call (737) 727-2314 and we’ll give you an honest recommendation, even if the answer is “not yet.”
We charge one flat price per system, agreed before any work starts. No per-vent pricing, no add-ons that appear after the tech is inside. The price covers every supply and return duct, the air handler, blower wheel, and coil if included. If the price on your written estimate says $585, that’s what you’ll pay.
The system is placed under negative pressure, meaning the only air path is through a HEPA-filtered vacuum. Then we run a rotary brush through every duct, agitating dust and debris that gets pulled straight into the vacuum, not back into your living space. Afterward, we show you before-and-after photos of your own registers and duct interiors. The whole job takes 3 – 5 hours in a typical Granite Falls home.
Yes, in most cases. The musty smell you notice comes from biological grime on the coil and fine damp silt coating the inside of the ducts and blower wheel. Cleaning removes that material at the source, and a coil treatment afterward slows regrowth for months. If the smell is coming from a plugged condensate line or standing water in the drain pan, we’ll address that too, not just clean around it.
Same-day is rarely possible for a thorough HVAC cleaning, and we won’t pretend otherwise. A proper duct cleaning in a Granite Falls home takes 3 – 5 hours and requires scheduling so we can allocate the right equipment and time. What we will do is answer your call live, give you a real arrival window you can track, and put your written price in your hands before any work begins. Call (737) 727-2314 to schedule.
Written by Omar Haddad, Owner at Cardinal Air Duct Cleaning, serving Granite Falls and the Stillaguamish valley.




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