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 Walnut Creek
HVAC cleaning in Walnut Creek isn’t a maintenance checkbox here. It’s a direct answer to Diablo wind dust, summer AC cycles that never quit, and homes built when ductwork was considered permanent infrastructure. At HVAC Cleaning by CleanRun Air Duct Cleaning, every Walnut Creek job starts with a written price before we touch a single panel, and ends with a photo record of every duct run we cleaned. If you’re in Rossmoor, Northgate, Tice Valley, or anywhere else in Walnut Creek and want to know what’s actually inside your ducts, call (806) 606-6902. We’ll show you.
Why CleanRun Air Duct Cleaning Is Walnut Creek’s Preferred HVAC Cleaning Company
We’ve spent enough time inside Walnut Creek ductwork to know exactly what the 1960s and 1970s building boom left behind. Original fiberglass-lined runs in Rossmoor. Crushed flex duct behind walls in Northgate ranch homes. Deteriorating mastic seals in Tice Valley condos. And in too many cases, joint tape that field-tests positive for asbestos, which stops a standard cleaning cold until a material assessment is done. That’s not a problem we discovered from a manual. That’s what our crews encounter on a routine basis in this city.
CleanRun was founded in 2013, and since then we’ve served more than 52,000 homes, every one of them with a written price before work began and a documented photo record when the crew left. Tomas Reyes, our owner, put the H.A.V.E.N. Standard in place for exactly this reason: Haven Standard Clause 1 says a written price comes before any work starts. No exceptions. No “call for a quote.” The number is on paper before we pull out a screwdriver. Walnut Creek homeowners who’ve dealt with the bait-and-switch model in this industry tend to notice that difference immediately.
Our technicians who serve Walnut Creek are background-checked, uniformed, and identified by name before arrival. They carry professional-grade equipment from Rotobrush, Nikro, and Abatement Technologies, and they’ll show you the camera feed from inside your ducts before they tell you what needs to happen next. That’s the whole point: evidence first.
Our HVAC Cleaning Services in Walnut Creek

Evaporator Coil Cleaning
In Walnut Creek, your evaporator coil works harder than it would in Oakland or Berkeley. Summer temperatures here run 15 to 25 degrees hotter than the coast, which means your AC system cycles more aggressively for months on end. The evaporator coil sits inside the air handler and is responsible for absorbing heat from your home’s air. When it’s coated in dust and debris, it can’t do that job efficiently. A Walnut Creek evaporator coil cleaning typically runs $350 to $650, depending on access and how much buildup is present. We photograph the coil before and after so you can see exactly what was removed.

Air Handler Cleaning
The air handler is the box that houses the blower motor and, in most Walnut Creek systems, the evaporator coil. Homes in Rossmoor and other late-1960s developments often have air handlers in tight closet or attic spaces that haven’t been opened in decades. Inside, we commonly find a layer of fine Mount Diablo dust, pet hair, and what can only be described as years of deferred maintenance. Air handler cleaning in Walnut Creek typically runs $400 to $750. If the blower wheel is caked with debris, expect that number to land on the higher end. We’ll tell you before we start, in writing.

Condenser Cleaning
The condenser is the outdoor unit, and in Walnut Creek it’s fighting a specific local enemy: dust from the hills. The dry, hot Diablo winds that funnel through the valley in the fall push fine particulate from Mount Diablo and the surrounding East Bay hills directly into condenser coils. That dust layer reduces heat transfer and forces the system to work harder. Condenser cleaning in Walnut Creek runs $150 to $350 for most residential units. We clean the coil, clear debris from the housing, and check for anything that restricts airflow before we call the job done.

Coil Treatment
After cleaning, we apply a coil treatment designed to inhibit microbial growth and help prevent future buildup. In Walnut Creek’s hot, dry summers, this step matters because the coil goes through rapid heating and cooling cycles that encourage dust adhesion. Coil treatment is included with our evaporator coil cleaning and air handler cleaning at no additional charge on most jobs; where a standalone treatment is requested, it runs $75 to $150. We use treatments from Honeywell and Aprilaire, brands that publish their specifications and stand behind them.

What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
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AfterTrusted Brands We Service in Walnut Creek
We work on systems built around Honeywell, Aprilaire, and Guardsman components, among others, and we keep common replacement parts stocked for the systems most prevalent in Walnut Creek’s 1960s and 1970s housing stock. That means less waiting when a blower motor or coil needs replacement during a cleaning visit. We also run professional-grade extraction equipment from Rotobrush, Nikro, and Abatement Technologies, which you’re welcome to research before we arrive. A written quote doesn’t mean much if the equipment behind it isn’t serious. Ours is.
Common HVAC Cleaning Problems We See in Walnut Creek Homes

- Asbestos joint tape in Rossmoor and similar late-1960s developments. Original duct joint tape from that era frequently field-tests positive for asbestos. We stop the job and quote a material assessment before any cleaning proceeds. This is a Walnut Creek-specific reality our crews handle routinely.
- Diablo wind dust coating duct interiors. Fall wind events push fine Mount Diablo foothill dust and wildfire ash through breaks in the coastal range and into Walnut Creek homes. A standard brushing leaves most of that fine particulate behind. Only HEPA-filtered negative pressure extraction actually removes it.
- Crushed or disconnected flex runs in Northgate and Tice Valley. In homes built between 1968 and 1975, a camera inspection frequently reveals branch runs that have collapsed or separated behind walls. The airflow problem is mechanical, not just dirty ducts. We find it because we look.
- Deteriorating mastic seals and joint tape failure. The original seals on 50-year-old ductwork dry out, crack, and leak conditioned air into attics and crawlspaces. Cleaning without addressing those leaks means the system still underperforms. We quote the sealing work separately, with the same written-price rule.
Pricing for HVAC Cleaning in Walnut Creek, CA
A full HVAC cleaning in Walnut Creek, including the air handler, evaporator coil, and condenser, typically runs $600 to $1,100 for a standard single-system home. Adding duct cleaning to that scope pushes the total to $1,200 to $2,200, depending on the number of runs and system accessibility. Homes in Rossmoor with original asbestos-containing tape will also need a material assessment, which runs $150 to $300, before any cleaning can proceed. We don’t do per-vent pricing, and we don’t do teaser coupons that turn into a larger invoice once the van arrives. One written price per system, agreed before work starts. That’s Haven Standard Clause 1. Call (806) 606-6902 for a free estimate.
We Also Serve Cities Near Walnut Creek

Our crews regularly handle HVAC Cleaning in Walnut Creek and the surrounding East Bay communities. We serve homeowners in Concord, Martinez, Danville, and Oakland, with the same written-price rule and photo record on every job, no matter the city.
Serving Walnut Creek, CA - Our Local Coverage Area
We’re based in the Walnut Creek 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 - HVAC Cleaning in Walnut Creek

An asbestos check is required on many Rossmoor jobs because the original joint tape used in late-1960s and 1970s ductwork contains asbestos, and disturbing it during cleaning can release fibers into the home. Our crews field-test the tape before starting work, and if it comes back positive or presumptive, we stop and quote a material assessment before proceeding. This is standard practice for us in Rossmoor, not an upsell. For a written quote on your specific system, call (806) 606-6902.
Diablo wind events push hot, dry air from the East Bay hills into Walnut Creek, carrying Mount Diablo dust, pollen, and wildfire ash that settles inside ductwork at rates coastal cities like Oakland rarely experience. The fine particulate coats evaporator coils and duct interiors, and it won’t come out with a standard brushing. We use HEPA-filtered negative pressure extraction specifically because Walnut Creek’s particulate loading is higher and finer than what coastal systems see. If you’ve noticed dust returning quickly after a previous cleaning, that’s often the reason. Call (806) 606-6902 to discuss your system.
The evaporator coil is the component inside the air handler that absorbs heat from your home’s air, while the air handler is the larger unit that houses the blower motor and the coil together. Cleaning the coil removes the dust and debris that block heat transfer; cleaning the air handler includes the blower wheel, housing, and drain pan, which affect airflow and indoor air quality. In Walnut Creek homes with original 1970s ductwork, both are usually needed because decades of accumulated dust is distributed throughout the entire system. We’ll show you before-and-after photos of each component so you know exactly what was done.
A camera inspection often saves money in Northgate and Tice Valley homes because it reveals whether the real problem is crushed or disconnected duct runs, not just dirty ducts. If a branch run has collapsed behind a wall, no amount of cleaning will restore airflow, and paying for a standard cleaning without knowing that would be wasted money. Our inspection shows us exactly what’s inside before we quote any work, which means the price you approve is for the actual fix, not a guess. That’s included with every Walnut Creek job.
A Walnut Creek home with original 1970s ductwork should get HVAC cleaning every 3 to 5 years, though homes in Rossmoor and other developments with Diablo wind exposure may benefit from more frequent coil and air handler cleaning. The real variable is whether the duct system has been sealed and whether it has a proper filtration setup. Homes that run original fiberglass-lined ducts and have never had sealing work done will accumulate particulate faster. We’ll give you a realistic interval based on what our camera sees, not a calendar guess. Call (806) 606-6902 to schedule an inspection.
Our techs were called to a 1972 Rossmoor patio home where the homeowner complained of weak airflow and musty air. Camera inspection revealed a crushed branch run and original fiberglass-lined ducts with deteriorating mastic seals. We performed source removal cleaning on the supply and return ducts, repaired the crushed section, and sealed the joints with mastic. Airflow and indoor air quality were noticeably better within hours.
Written by Tomas Reyes, Owner at CleanRun Air Duct Cleaning, serving Walnut Creek since 2013.




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