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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AfterAir Duct Cleaning Company in Walnut Creek, CA
Full-system air duct cleaning in Walnut Creek typically runs $450 – $850 for a standard single-family home, with most jobs completed in one visit. Walnut Creek’s combination of extreme summer heat, heavy spring pollen from surrounding oak woodlands, and a large stock of 1960s – 70s ranch homes with original ductwork means our crews spend as much time restoring lost HVAC efficiency and removing wildfire smoke residue as they do on routine dust removal. We’re Hollis Air Duct Cleaning, part of the Garrison Partners family, and our Walnut Creek crews dispatch from the San Francisco Bay Area office. Call (361) 326-5060 for a free written estimate.
Why Walnut Creek Homes Are Different
Walnut Creek sits in a heat basin east of the Berkeley Hills where summer temperatures regularly push past 100°F. That extreme heat forces air conditioners to run longer and harder than in cooler Bay Area microclimates, pulling more debris through duct systems over time. The surrounding oak woodlands and grass hills release heavy spring pollen loads that coat return grilles and filter into ductwork, while increasingly common Diablo wind – driven wildfire smoke events push fine ash and soot through even standard filtration systems.
The housing stock compounds these pressures. Much of Walnut Creek was built during the 1950s – 1970s ranch-home boom, with original rigid or flex duct systems that have never been professionally cleaned. Later 1980s – 1990s two-story developments added square footage but often used the same basic duct designs. Older downtown areas include pre-war bungalows with retrofitted HVAC that was never designed for modern airflow demands. After a smoke event, we regularly find that fine ash has settled in return plenums; because many homes still have original ductwork with leaky joints, that ash recirculates every time the AC cycles on. Our technicians check for smoke odor in the return plenum before opening the first vent, a step we added specifically for Walnut Creek conditions.
Our Main Walnut Creek Services
Most Walnut Creek homeowners call us for one of three jobs. Each has its own dedicated page with full pricing, process details, and local specifics.
Air Duct Cleaning in Walnut Creek
We clean the full supply and return duct network using a Rotobrush rotary brush system paired with a Nikro negative-air machine. The rotary brush scrubs debris from duct walls while the negative-air unit maintains suction at the collection point, so dust doesn’t escape into your living space. In Walnut Creek, we pay particular attention to return plenums after wildfire smoke events, where fine ash can accumulate beyond what standard filters catch. Air Duct Cleaning in Walnut Creek
Dryer Vent Cleaning in Walnut Creek
Dryer vent cleaning removes lint buildup from the transition duct, wall run, and exterior termination. Walnut Creek’s hot, dry summers mean dryers work harder and longer, accelerating lint accumulation in longer vent runs common in 1970s ranch layouts. We use rotary brush and high-velocity air tools to clear the full line, then verify airflow at the exterior cap. Dryer Vent Cleaning in Walnut Creek
Duct Sealing in Walnut Creek
Duct sealing closes leaks at joints, seams, and connections using mastic sealant and specialized tape rated for HVAC temperatures. Walnut Creek’s original 1960s – 70s ductwork often has gaps at plenum connections and register boots that bleed conditioned air into attics and crawl spaces, directly driving up summer cooling costs. We pressurize the system, locate leaks with a smoke pencil or theatrical fog, then seal them methodically. Duct Sealing in Walnut Creek
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Walnut Creek
We stock parts and filtration products from Honeywell, Aprilaire, and Abatement Technologies for Walnut Creek jobs, with same-day availability on common filter sizes and sealant materials. See our brands for the full equipment roster.
Pricing for Air Duct Cleaning Company in Walnut Creek, CA
| Service | Typical range in Walnut Creek |
|---|---|
| Standard single-family air duct cleaning (up to 2,000 sq ft) | $450 – $650 |
| Large home or multi-zone system (2,000 – 3,500 sq ft) | $650 – $850 |
| Post-wildfire smoke deep clean with odor treatment | $750 – $1,100 |
| Dryer vent cleaning (standard wall-run length) | $150 – $250 |
| Dryer vent cleaning with rooftop or extended run | $250 – $400 |
| Duct sealing (whole-system, typical ranch home) | $800 – $1,400 |
| Duct sealing (partial, targeted leak repair) | $350 – $600 |
| HVAC mold remediation with antimicrobial treatment | $900 – $1,500 |
| Register and grille deep cleaning (add-on) | $75 – $125 |
| Return plenum cleaning (heavy smoke/pollen load) | $200 – $350 |
Prices in Walnut Creek run toward the higher end of these ranges when homes have original 1960s ductwork with multiple access challenges, or when post-smoke cleaning requires extended HEPA vacuuming and odor-neutralizing treatment. Every job gets a written price before we start, and that price does not move at the door.
Neighborhoods We Serve in Walnut Creek
Our crews cover the full Walnut Creek area, from the flatlands near downtown to the hillside developments along the Diablo Range. Most appointments are scheduled within a three-day window.
- Saranap
- Larkey Valley
- Heather Farm
- Rossmoor
- Tice Valley
Service Area – Cities Near Walnut Creek
We schedule Walnut Creek appointments alongside neighboring communities throughout the central Contra Costa corridor. Our regular service area includes Lafayette, CA, Alamo, CA, Moraga, CA, and Pleasant Hill, CA. Dispatch is coordinated from our San Francisco Bay Area office, with crews routing daily through these cities.
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 About Air Duct Cleaning Company in Walnut Creek
No permit is required for standard residential duct cleaning, dryer vent cleaning, or duct sealing in Walnut Creek. If your HOA has maintenance notification rules, we can provide a work summary on request. Call (361) 326-5060 if your management company needs documentation.
We prioritize post-smoke appointments and typically schedule Walnut Creek homeowners within 48 – 72 hours of calling. Demand spikes after major Diablo wind events, so we recommend calling as soon as you notice smoke odor when the HVAC runs.
Yes, we serve the full Walnut Creek area including 94595, 94596, 94597, and 94598, plus the unincorporated pockets near Rossmoor and Saranap that use Walnut Creek addresses. Call (361) 326-5060 to confirm your location and get a free estimate.
What happens when you call
- 1A real person answersNo phone trees - talk to a local air duct cleaning pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Walnut Creek Customers Say
"Duct sealing along with the cleaning cut our summer bill. Straight talk and fair price."
- Gwen O."Sealed some leaking duct joints in the crawl space with mastic. Rooms that were always cold now get air."
- Ronald W."Dryer vent was packed with lint and took two hours to dry a load. Cleaned it out from the roof cap down. One cycle again."
- Paula Q.