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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Before
AfterAir Duct Cleaning Company in Danville, CA
Air duct cleaning in Danville runs $675-$1,400 for a full home, depending on square footage, number of zones, and how many fire seasons have left their mark inside the system. Most Danville homes fall between $825 and $1,100. Call (469) 972-3151 and we’ll give you a written price before any work begins.
What makes Danville jobs different comes down to geography and what got built here. The housing stock tilts heavily toward 1970s-1990s planned-community and custom homes, many in Blackhawk and the hillside subdivisions below Mount Diablo. Those are big houses, commonly 3,000 to 5,000 square feet, with multi-zone HVAC systems and long duct runs that are now 30 to 40 years old. And every fall, the Diablo winds push wildfire smoke and fine ash across the San Ramon Valley, straight into return-air plenums and duct liners. That combination, decades of buildup plus recurring smoke events, means Danville systems often need more than a surface pass. Our home page has the full picture on how we work.
Why Danville Homes Are Different
Danville sits inland, tucked against the foothills below Mount Diablo. Summer highs regularly land in the mid-90s to low 100s, which means HVAC systems here run far more hours each year than they do in coastal Bay Area cities. More run-time means more air moving through the ducts, more particulate settling onto liners, and more fine debris working its way into return-air plenums. Then fall arrives and the Diablo winds bring hot, dry air, often loaded with wildfire smoke and ash. That ash doesn’t just pass through the house; it settles inside the ductwork, especially in return plenums, where it sits on top of the ordinary dust that’s been accumulating since the Regan administration.
The housing stock compounds the issue. Many Danville homes built in the 1980s still have original fiberglass duct board and flex duct. After three or four decades of inland valley summers, that material degrades. Liners break down, flex runs sag or collapse, and debris accumulates in places a quick vacuum pass won’t reach. Technicians working Blackhawk and the larger hillside subdivisions frequently find return-air plenums packed with a visible gray-tan ash layer from multiple fire seasons sitting on top of decades of ordinary household dust. That’s a two-layer problem specific to this inland foothill corridor, and it changes the work. A Danville duct cleaning is often a restoration job, not a maintenance touch-up.
Our Main Danville Services
These are the two jobs Danville homeowners call Kestrel about most often, each with its own detailed page covering what happens on-site, local pricing, and what to expect from the crew.
Air Duct Cleaning in Danville
Most Danville homes have duct systems that haven’t been opened since the house went up. That means 30-plus years of dust, pet dander, construction debris from the original build, and in recent years, wildfire ash from Diablo wind events settling into return-air plenums and liners. We use a Rotobrush rotary brush system to dislodge debris at the duct wall, then a Nikro negative-pressure unit pulls contaminants out of the system while Abatement Technologies HEPA filtration keeps loosened particles from re-entering the living space. Negative-pressure extraction means the air inside the ducts is drawn out under vacuum, not pushed back into your rooms. The full scope, including what to expect from a multi-zone system, is on the Air Duct Cleaning in Danville page.
Dryer Vent Cleaning in Danville
Dryer vents in Danville collect lint, but they also collect what the climate brings into the laundry room: fine dust from the inland valley, soot from the fire season, and in older homes, bits of degraded vent material from original 1980s installations. A clogged vent doesn’t just slow drying time, it forces the dryer to run hotter and longer, which shortens appliance life and raises the fire risk. Our crew runs a professional-grade brush line through the full vent run, including the lint trap bypass, which simply means we don’t clean around the lint screen; we pull the trap and clean the entire path behind it. Details and local pricing are on the Dryer Vent Cleaning in Danville page.
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 Danville
Every Danville job is cleaned with professional-grade equipment: Rotobrush rotary brush systems for agitation, Nikro negative-pressure units for extraction, and Abatement Technologies HEPA filtration to keep loosened particles contained. For homeowners who want to maintain cleaner air between service visits, we offer Honeywell and Guardsman filtration products. See our brands for details.
Pricing for Air Duct Cleaning Company in Danville, CA
| Service | Typical range in Danville |
|---|---|
| Full home duct cleaning, up to 2,000 sq ft | $675-$900 |
| Full home duct cleaning, 2,000-3,500 sq ft | $825-$1,100 |
| Full home duct cleaning, 3,500-5,000 sq ft | $1,100-$1,400 |
| Multi-zone furnace coil cleaning | $250-$400 per coil |
| Return air plenum and blower compartment | $180-$300 |
| Dryer vent cleaning, standard single-story | $125-$175 |
| Dryer vent cleaning, two-story or long run | $175-$250 |
| Rooftop dryer vent termination access | $75-$125 |
What pushes price up in Danville is square footage and what’s inside the ducts. A 4,800 square foot Blackhawk home with three zones and 40-year-old flex duct takes longer and costs more than a modest single-zone rancher. Whatever the number, it’s written down and agreed to before a single vent is touched.
Neighborhoods We Serve in Danville
We work throughout Danville, from the gated communities of Blackhawk to the hillside subdivisions off Diablo Road and the older tree-lined streets near downtown. Crews are scheduled from our San Francisco Bay Area office and serve Danville locally, with next-day availability in most weeks.
- Blackhawk
- Green Valley
- Sycamore Valley
- Westside Danville
- Tassajara Valley
Service Area – Cities Near Danville
While this page focuses on Danville, our crews also cover the surrounding San Ramon Valley and nearby communities. If you’re in San Ramon, CA, Alamo, CA, or Clayton, CA, we can schedule the same written-price service. We also field calls from the Dublin, PA area. Call (469) 972-3151 to confirm coverage for your address.
Serving Danville, CA - Our Local Coverage Area
We’re based in the Danville 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 Danville
Most Danville calls are scheduled within one to three business days, and in many weeks we can offer next-day availability. We don’t promise same-day service. The written arrival window is part of the Kingswell Guarantee, so you’ll know when the crew is coming before the day of the job.
No. Duct cleaning happens entirely inside the home or on the rooftop vent termination, and no exterior modification is involved. Some HOAs require notice for rooftop work, so if your vent runs through a shared structure or you’re unsure, check with your association in advance.
Yes, it applies to every job we do. If the work falls short within the guarantee period, we return and make it right at no charge. It’s documented in writing on every single job. Call (469) 972-3151 and the person who answers will explain exactly what’s covered.
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 Danville Customers Say
"Our dryer was taking two cycles to dry a load. They cleaned the vent and pulled out a frightening amount of lint. Dries in one cycle now and honestly I feel better about the fire risk."
- Marcus Lee"Set up an appointment for the whole house plus the dryer line. They called the morning of to confirm, showed up in the window, and showed me pictures of the gunk they pulled out. Worth it."
- Terrence Boyd"My wife's allergies were awful every morning. Had the ducts done and it's made a real difference. Tech was on time and wore booties in the house without me asking."
- Rob Pendergast