Air Duct Cleaning in Spokane, WA
Your air conditioner pulled weeks of wildfire smoke into your ductwork this summer. Your furnace pushes it back out all winter. We get it out, whole system, with before and after photos.
This Summer’s Smoke Is Still In Your Ducts
Spokane did not just have a smoky week. On July 17 the air downtown and east toward the Valley passed 300 on the air quality index, which is the hazardous category, and Liberty Lake recorded 351. Then the August fires put unhealthy to very unhealthy air over Eastern Washington and kept it there.
Here is the part most homeowners miss. It was ninety degrees, so your air conditioner was running constantly, and an air conditioner uses the exact same ductwork your furnace does. Every cooling cycle pulled that smoky indoor air across the return, through the filter, over the coil and back into the duct runs. A one-inch filter does not stop fine smoke particulate. The residue settled on the duct wall, the blower wheel and the coil, and it is still sitting there right now.
You will notice it the first genuinely cold morning, when the furnace runs a long cycle for the first time since summer. That faint campfire smell coming out of the registers is not the furnace burning off dust. It is this summer, coming back through your vents, and it will keep coming back every cycle all winter until the system is cleaned.
This is the single most legitimate reason to clean a duct system in the Inland Northwest, and this year it applies to almost every home in Spokane County. Smoke exposure at that level and that duration is exactly the contamination event that duct cleaning exists to solve.
The Other Reasons Spokane Homeowners Call Us
Smoke is the big one this year. These are the others, and they are all real.
After a Remodel
Drywall dust is the worst thing you can put through a duct system. If a contractor ran the furnace during demo or sanding, or left registers uncovered, that fine white dust is coating everything downstream of the air handler.
You Just Bought the House
You have no idea what the last owner did, whether they smoked, how many pets lived there, or when the filter was last changed. On an older Spokane home this is one of the few times a full cleaning is money genuinely well spent.
Rodents or Insects in the Ducts
Mice in the crawlspace ductwork is a real problem in older South Hill and Hillyard housing stock. Droppings and nesting material in a supply line are a contamination issue, not a dust issue, and cleaning is the fix once the entry point is sealed.
Visible Mold on Duct Surfaces
Visible growth on hard surface duct interiors or on the coil needs to come out. We will also tell you when the real problem is a moisture source that has to be corrected first, because cleaning a system that is still getting wet is money thrown away.
An Odor You Cannot Place
A smell that shows up only when the blower runs is coming from inside the system. Sometimes that is a dead animal, sometimes a wet coil, sometimes thirty years of debris in the return plenum.
Dust That Never Quits
If you dust on Saturday and it is back on Monday, and the filter is fresh, the system itself is often the reservoir feeding it.
How We Actually Clean a Duct System
The method that works is called source removal. The debris gets physically dislodged from the duct wall and pulled out of the house, rather than blown around or vacuumed at the register and called done. This is what the industry standard, NADCA’s ACR, describes, and it is the method we use.
- Inspect and photograph firstWe open the system and look before we quote. You see the same photos we do, so you know exactly what you are paying to remove.
- Seal the system and pull negative pressureA high powered vacuum with HEPA filtration is connected to the trunk line so the entire duct system is under negative pressure. Everything we knock loose has one place to go, and it is not your living room.
- Agitate every runRotary brushes and compressed air whips are fed down each supply and return branch to break the smoke residue and debris off the duct wall. This is the step the cheap operators skip, and it is the entire job.
- Clean the equipment, not just the ductsThe blower wheel, the evaporator coil, the return plenum and the air handler cabinet are where the heaviest smoke residue collects. A duct cleaning that stops at the ducts leaves the dirtiest part of the system untouched.
- Registers, grilles and bootsPulled, cleaned and reset, including the return grille that has been collecting dust since the Clinton administration.
- New filter and a final photo setWe install a fresh filter, verify airflow, and hand you before and after photos of the same runs. You should never have to take a duct cleaner’s word for it.
What You Get in Writing
- A free inspection and a written quote before any work starts
- A flat price for the job, not a per-vent meter that climbs while the crew is in your basement
- Before and after photographs of the same duct runs
- Work performed by Bearcat employees, licensed in Washington, not a subcontracted crew you have never met
- The option to bundle it with your furnace tune-up so both happen in one trip
Duct cleaning is priced per system based on the size of the home, the number of runs and how the system is configured. We quote it in writing after we look, at no charge, and the number we give you is the number you pay.
How To Spot a Duct Cleaning Scam
Duct cleaning has a reputation problem in Spokane and it was earned by a specific kind of operator. If you have gotten the robocall offering a whole house for $79, you already know the pattern: a crew shows up with a shop vac, finds a horrifying problem, and the ninety-nine dollar special becomes twelve hundred. Here is how to tell them apart from a real contractor.
- A flat headline price for any home. A rambler with one system and a large two-system home are not the same job. A single advertised price for both is a lead generation offer, not a real quote.
- Health claims they cannot back up. The EPA’s own guidance is that duct cleaning has never been shown to prevent health problems, and it specifically warns about providers who make unsubstantiated health claims. Removing smoke and contamination from your system is a real and worthwhile result. Curing anybody’s asthma is not a promise we or anyone else can make.
- Chemical add-ons sold on the spot. No fogging, no antimicrobial spray, no duct sealant. The EPA is explicit that biocides and sealants have not been shown to be safe or effective for routine use, and no biocide is registered for use in fiberglass duct board. A sanitizing upsell is your signal to stop.
- Anyone who never opens the system. If nobody photographed the inside of your ductwork before quoting, they are guessing, and so are you.
- In and out in forty five minutes. A real cleaning on a single-system Spokane home runs three to five hours because the blower wheel and coil take real time.
Bearcat inspects first, photographs what is actually in your system, quotes a flat price in writing, and does the whole system including the equipment. If we open your ducts and they genuinely do not need cleaning, we will say so and you will owe us nothing for the look. We would rather lose one job than run the $99 playbook.
Questions Spokane Homeowners Actually Ask
Does wildfire smoke really get into your air ducts?
Yes, and this summer it did so at an unusual scale in Spokane. Your return pulls indoor air across the filter and through the system continuously while the blower runs. During a prolonged smoke event, that indoor air is loaded with fine particulate that a standard one-inch filter does not capture. The residue deposits on the duct wall, the blower wheel and the coil, and it stays there until it is mechanically removed. That is why the smell reappears months later when you first run the heat.
Is duct cleaning worth the money?
After a smoke season like this one, for most Spokane homes, yes. It is worth it whenever something has actually happened to the system: heavy smoke exposure, a remodel, rodents, water intrusion, or buying a home with unknown history. It is not worth buying as an annual subscription on a house nothing has happened to, and any company selling it that way is selling you a service you do not need. We will tell you which situation you are in before you spend anything.
How much does air duct cleaning cost in Spokane?
It depends on the size of the home, the number of supply and return runs, and whether the air handler and coil need cleaning too. We inspect and quote in writing at no charge, and the number we give you is the number you pay. Be skeptical of anyone advertising a flat $99 whole home price, because that is a lead generation offer rather than a real one.
How soon should I get it done after a smoke season?
Before you rely on the furnace daily, which in Spokane means now through October. Every heating cycle recirculates whatever is in the system, so cleaning it before the heating season means you are not redistributing smoke residue through the house all winter. It also pairs naturally with a furnace tune-up, so both happen in one visit.
How long does duct cleaning take?
Most Spokane homes take between three and five hours for a single system, including the air handler, coil and blower wheel. Larger homes and two system homes run longer. Anyone in and out in forty five minutes did not clean your ducts.
Do you clean the furnace and the coil too, or just the ducts?
Both, and this is the part that separates a real cleaning from a vent vacuuming. The blower wheel and evaporator coil collect the heaviest buildup in the entire system, smoke residue included. Cleaning the branch runs and leaving a caked blower wheel in place means the air is still passing over the dirtiest surface in your home on its way to you.
Can duct cleaning damage my ductwork?
Done wrong, yes. Flex duct and fiberglass duct board are easy to tear with aggressive brushing, and a torn flex run leaks conditioned air into your crawlspace forever. That is why we identify the duct material before we choose the tooling, and why we photograph what we find going in.
Do you also clean dryer vents?
Yes, and it is a different job with a different purpose. Duct cleaning is about what you breathe. Dryer vent cleaning is about fire risk. See our dryer vent cleaning page, and we can do both in one visit.
What areas do you serve for duct cleaning?
Spokane, Spokane Valley, Liberty Lake, Mead, Cheney, Deer Park, Airway Heights, Medical Lake and the surrounding Spokane County communities. Our full list is on the locations page.
Get The Smoke Out Before Winter
Free inspection, photos of what is actually in your system, and a flat written price. Book it with your furnace tune-up and we will do both in one trip.
Bearcat Heating and Cooling is an independent HVAC contractor licensed in Washington (#BEARCHC746DU). Air quality index figures cited are from reporting on the July 17, 2026 Spokane-area smoke event. EPA guidance referenced is from the U.S. Environmental Protection Agency publication “Should You Have the Air Ducts in Your Home Cleaned?” ACR is the HVAC cleaning standard published by the National Air Duct Cleaners Association. Bearcat is not affiliated with, endorsed by, or certified by the EPA.