Whole-home duct cleaning
Dryer vent cleaning
Camera inspection
Sanitizing & deodorizingWhole-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.
Air Duct Cleaning Company in Walnut Creek, CA
Air duct repair in Walnut Creek often means fixing leaks in original 1960s sheet-metal ductwork, especially in older ranch homes and the Rossmoor community where joints have loosened over decades of hot, dry summers. We’re Hallmark Air Duct Cleaning, and we carry the repair capability most duct cleaners don’t, because a clean duct that leaks conditioned air into your attic is a duct that re-contaminates fast and costs you money every month. From the 94596 core to the 94598 foothills, our crews match Rotobrush and Nikro extraction to your system, then seal what’s failed. Call (833) 467-6681 for an assessment.
Why Walnut Creek Homes Are Different
Walnut Creek sits at the base of Mount Diablo, and that single fact orders the whole job. During Diablo wind season, dry offshore gusts push ash and fine particulate from the open-space corridors straight down into hillside neighborhoods, particularly the west side near Shell Ridge and the 94598 foothills. HVAC returns pull that fine material into the duct system, and it settles in the return boots and plenum. Add a long, hot inland summer where the air conditioner runs for months, and you have ducts that stay dry, dusty, and carrying wildfire residue long after the smoke clears. That’s a different problem from flatland East Bay cities – it’s not just dust, it’s combustion particulate that packs into the return side.
The housing stock compounds it. Mid-century ranch homes from the 1950s through the 1970s in the older core, including the dense 1960s-era single-story tracts at Rossmoor, often still run the original sheet-metal ductwork. That metal has expanded and contracted through decades of 90-degree summers, and the joints, especially at the plenum and branch takeoffs, loosen and leak. Ducts leak, efficiency drops, and the negative pressure pulls in attic dust through every gap. The newer two-story builds in the 94598 foothills are a different animal: longer duct runs, more complex zoning, and more surface area for smoke and ash to coat. Either way, the job has to address both what’s inside the duct and whether the duct is even intact.
Styles & brands we work with
- Whole-home duct cleaning
- Dryer vent cleaning
- Camera inspection
- Sanitizing & deodorizing
Our Main Walnut Creek Services
Most Walnut Creek calls start with one of two concerns: what’s built up inside the ducts, or what’s building up inside the dryer vent. Both have dedicated pages, and both get the same equipment-serious approach.
Air Duct Cleaning in Walnut Creek
Systematic extraction of accumulated dust, ash, and particulate from supply and return ducts, boots, registers, and the air handler. In Walnut Creek, post-wildfire smoke events mean return-air cleaning often requires HEPA-level containment so dislodged ash doesn’t recirculate through the living spaces. Read the full scope and local pricing here: Air Duct Cleaning in Walnut Creek.
Dryer Vent Cleaning in Walnut Creek
Dedicated extraction of lint accumulation from the dryer transition and vent run, treated as a fire-risk reduction service rather than an add-on. Homes with longer vent runs, common in two-story 94598 builds and ranch homes where the dryer sits on an interior wall, accumulate lint faster. Read the full scope here: Dryer Vent Cleaning in Walnut Creek.
Air Duct Repair in Walnut Creek
Air duct repair in Walnut Creek is most often about age and heat. The original sheet-metal ductwork in 1950s-to-1970s ranch homes has spent fifty to seventy years expanding and contracting through hot, dry summers, and the joints leak. Once a joint fails, the system pulls attic dust through the gap, re-contaminating the ducts you just paid to clean and bleeding conditioned air into unconditioned space. We repair the structure, not just the contents. You can read more about our repair capability here: Air Duct Repair.
Ductwork Repair
Signs you need it
Rooms that never quite reach temperature, dust that returns within weeks of cleaning, or a musty attic smell from the registers.
What it costs in Walnut Creek
Ductwork repair in Walnut Creek typically runs $180 – $420 depending on joint count and access.
How we do it
We locate failed joints and seams by hand and with static-pressure indication, then mechanically re-secure and seal each connection with mastic or foil tape rated for the system.
Air Duct Replacement
Signs you need it
Crushed or collapsed flex runs, rust-through on sheet metal, or ducts so brittle that sealing no longer holds.
What it costs in Walnut Creek
Air duct replacement in Walnut Creek generally runs $1,200 – $2,500 depending on run count and accessible length.
How we do it
We size the replacement to the room’s calculated CFM requirement, remove the failed run, and install new duct of the proper diameter and insulation value, then reconnect and seal at both collars.
What Air Duct Repair Costs in Walnut Creek
| Item | Typical range in Walnut Creek |
|---|---|
| Duct joint and seam repair | $180 – $420 |
| Single-run air duct replacement | $450 – $900 |
| Partial system replacement | $1,200 – $2,500 |
Prices move with access difficulty and the number of failed joints. In Walnut Creek, crawl-space access under a 1960s ranch is the biggest cost driver, followed by long flex runs through finished 94598 basements. We quote one flat price before work starts; no per-joint surprise.
Can you repair ducts the same visit as a cleaning?
Often yes. We find leaks during extraction because we’re already inside the system, and we carry mastic, tape, and common duct diameters on the truck. Call (833) 467-6681 to discuss.
Will fixing leaks actually lower my utility bill?
Sealed ducts stop conditioned air from leaking into the attic or crawl space, so the HVAC system runs less to hold temperature. In Walnut Creek’s hot summers, the difference shows quickly. Call (833) 467-6681 for specifics.
Brands We Service in Walnut Creek
We work with Honeywell and Aprilaire media filters and air cleaners, and we use Abatement Technologies negative-air and HEPA-filtration equipment during cleaning. Common filter sizes and replacement parts are stocked locally, which means less waiting. Full list here: our brands.
See the difference
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AfterPricing for Air Duct Cleaning Company in Walnut Creek, CA
| Service | Typical range in Walnut Creek |
|---|---|
| Air duct cleaning, full system | $450 – $1,100 |
| Air duct cleaning with sanitizing fog | $550 – $1,300 |
| Duct assessment with camera inspection | $120 – $250 |
| Ductwork repair (joints and seams) | $180 – $420 |
| Single-run air duct replacement | $450 – $900 |
| Partial system replacement | $1,200 – $2,500 |
| Dryer vent cleaning | $95 – $160 |
In Walnut Creek, price moves most with system size, number of returns, and contamination level, especially after a smoke event when the return side needs heavy extraction. We quote one flat price per system before work starts, and you get before-and-after photos of your own ducts.
Neighborhoods We Serve in Walnut Creek
We cover the full Walnut Creek footprint: 94595, 94596, 94597, and 94598. Our crews run the older ranch tracts, the Rossmoor community, the foothill builds, and the newer developments with equal familiarity.
- Rossmoor
- Shell Ridge
- Walnut Heights
- Northgate
- Larkey Park
Typical scheduling for Walnut Creek runs within the week, and we coordinate Rossmoor access and gate requirements directly.
Service Area – Cities Near Walnut Creek
Our service area reaches through the East Bay, including Lafayette, CA, Piedmont, CA, Berkeley, CA, and Oakland, CA. Each city has its own housing stock and air quality pressures, and we bring the same equipment-serious approach to all of them.
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
Duct repair and replacement generally do not require city permits, but some HOA-governed communities, including parts of Rossmoor, have work-hour and vendor-access rules. We coordinate that on our end, call (833) 467-6681 to discuss your specific community.
Most Walnut Creek jobs schedule within the week, with more flexibility mid-week. Fire-season calls understandably cluster, so a quick call after a smoke event helps lock a slot.
Yes. During Diablo wind events, fine ash and particulate draw into return-air systems throughout Walnut Creek, especially hillside neighborhoods near Shell Ridge and the 94598 foothills. The material settles in return boots and the plenum, and it stays until removed. Call (833) 467-6681 to assess your system.
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
"Told me straight that our ducts were in decent shape and didn't need doing every year like the mailer companies claim."
- Tim Quinn"Fair price, competent work. The guy wasn't especially chatty and I had to ask twice to get a real explanation of what he'd done. Not a dealbreaker, just noting it."
- Javier Vargas"Two guys, about three hours, plastic down at every register, and they wiped the vent covers before putting them back."
- Doug Lawson