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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AfterFast, Reliable Air Duct Cleaning Across San Ramon
Air duct cleaning in San Ramon typically runs $350 – $750 for a whole-home system and is scheduled by appointment with a written price locked in before any work starts. We’re Hollis Air Duct Cleaning, part of the Garrison Partners family, and we’ve been dispatching crews to San Ramon from our Bay Area office since 2004. If you’re in Gale Ranch, Windemere, or off Bollinger Canyon Road, we know the route and we know what your ducts are up against: fine dust from unpaved roads, wildfire ash from the Diablo winds, and decades of buildup in the flexible ductwork that runs through unconditioned attics. Call (361) 326-5060 for a free estimate.
Why Hollis Air Duct Cleaning Is San Ramon’s Preferred Air Duct Cleaning Company
San Ramon homeowners don’t need another coupon in the mailbox promising a $49 whole-house special. They’ve seen that movie. The price jumps at the door, the crew shows up in an unmarked van, and six months later the dust is back.
We run on The Garrison Standard. That means a background-checked, uniformed technician arrives inside the quoted window. The price is written down before we touch your system. We clean the site when we’re done. And every job carries our 365-Day Done Right Promise: if the work fails within a year, we come back and make it right at no charge, including a free second visit.
Our phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops. No callback queues. When you call (361) 326-5060, you talk to someone who can book your San Ramon appointment.
We serve properties from the master-planned communities near Bishop Ranch to the rural lots off Crow Canyon Road. We know the difference between a 1990s flexible duct system and a modern multi-zone setup, and we adjust our approach accordingly.
HVAC Duct Cleaning in San Ramon
HVAC Duct Cleaning in San Ramon means source removal from every component of your forced-air system: the supply trunk, return trunk, branch lines, registers, grilles, and the air handler itself. In San Ramon’s climate, where HVAC systems run hard from May through October and the valley’s temperature inversions trap outdoor pollutants, this isn’t a luxury service. It’s maintenance that protects your equipment and your indoor air.
A typical residential HVAC duct cleaning in San Ramon runs $450 – $750 for a single-system home. Larger homes with multi-zone systems, or properties with outbuilding air handlers, fall toward the higher end. We price by the system, not by the vent. You get one flat price per system, agreed in writing before we start.
Negative-Air Method with HEPA Filtration
We connect a Nikro negative-air machine to your trunk line. This creates suction at 2,000 – 3,000 CFM while we agitate debris with Rotobrush rotary tools. The HEPA filtration captures particles down to 0.3 microns, which matters in San Ramon when fine ash from wildfire season has entered your system.
Camera Inspection and Documentation
Before we pack up, we run a video camera through your main trunk lines. You see what we saw. In San Ramon, where the Bishop Ranch green-business standard has raised expectations for documented indoor air quality work, this isn’t optional. It’s how you know the job happened.
Vent Cleaning in San Ramon
Vent Cleaning in San Ramon targets the supply and return registers where dust first enters your living space and where it settles back into the room after the blower shuts off. This is the visible end of the problem, and for many homeowners, it’s the first sign that the whole system needs attention. If you’re wiping gray film off your registers every two weeks, the debris isn’t coming from your furniture. It’s coming from your ducts.
Standalone vent cleaning in San Ramon runs $150 – $300, but we typically recommend it only as part of a full system cleaning. Cleaning registers without addressing the trunk line is like changing your oil filter without draining the oil. For homes near Las Trampas Ridge or on unpaved roads, where fine particulate loads are higher, vent cleaning alone won’t solve the underlying problem.
Register and Grille Detailing
We remove each register, soak and hand-clean the grilles, and treat painted or finished surfaces without scarring. In San Ramon’s 1990s-era homes with rectangular stamped-metal registers, we’ve learned which finishes hold up and which don’t.
Boot and Plenum Access
The boot is the sheet-metal transition between your register and the duct trunk. Debris piles here. We vacuum and brush each boot, then seal any gaps with mastic. This stops the “register bleed” that blows attic dust into your room every time the system cycles.
Trusted Brands We Service in San Ramon
Our equipment roster includes Rotobrush rotary brush systems for agitation, Nikro negative-air machines for source removal, and filtration products from Aprilaire, Abatement Technologies, and Guardsman. We don’t use hardware-store shop vacs. We use the same tools commercial crews use in hospitals and cleanrooms, and we explain what each one does while we’re working. For San Ramon customers, this means we can source Aprilaire media filters and Guardsman UV accessories without a two-week wait. If your system needs a filtration upgrade after cleaning, we stock the parts and install them the same visit.
Common Air Duct Cleaning Problems We See in San Ramon Homes
- Flexible ductwork collapse in unconditioned attics. San Ramon’s master-planned homes from the 1980s through 2000s, including Gale Ranch and Windemere, used flexible duct in hot attics. Over decades, the insulation sags, the inner liner tears, and the duct becomes a dirt collector. We find this on roughly half the 1990s homes we service in San Ramon.
- Fine silica loading from unpaved roads and construction. Properties near active construction or on gravel driveways pull fine particulate through intake vents. Standard cleaning without HEPA containment just redistributes it. Our Nikro machines capture it at the source.
- Wildfire ash and creosote in wood-heat homes. When the Diablo winds blow through the San Ramon Valley in fall, homes near Las Trampas Ridge see ducts clogged with fine ash. Wood-stove users get creosote-tinged deposits in return ducts. Without agitation tools and camera verification, this hardened debris stays put.
- Multi-zone systems cleaned as single zones. Larger San Ramon properties with outbuilding shops or guest houses often have separate air handlers. Some crews clean only the main house, leaving half the system untouched. We map every zone and price by the system, not by the room count.
Pricing for Air Duct Cleaning in San Ramon, CA
Whole-home air duct cleaning in San Ramon ranges from $350 for a compact condo with a single system to $750 for a larger home with multiple zones or outbuilding air handlers. Dryer vent cleaning, often booked together, adds $120 – $180. Duct sealing with mastic, recommended for homes with attic leaks, runs $200 – $400 depending on access.
What moves the price: the number of air handlers, the linear footage of ductwork, whether we need to cut access panels in hard-plenum systems, and the condition of the duct. A system that hasn’t been cleaned in 15 years takes longer than one on an 18-month cycle. We inspect first, price in writing, and that number doesn’t move at the door. No per-vent add-ons. No “we found mold” upsells. Call (361) 326-5060 for an exact quote. Estimates are free.
We Also Serve Cities Near San Ramon
Our crews cover the full San Ramon Valley and beyond, including Air Duct Cleaning in San Ramon proper plus Dublin, Danville, Hayward, and Pleasanton. Dispatch and scheduling are coordinated from our Bay Area office, with local technicians serving each community. If you’re on the border between cities, we’ll book you with the crew closest to your property.
Serving San Ramon, CA - Our Local Coverage Area
We’re based in the San Ramon 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 in San Ramon
Every 18 – 24 months, and annually if you burn wood as a primary heat source. The combination of road dust and wood ash loads ducts faster than the standard 3 – 5 year interval recommended for suburban homes. We were called to a ranch property off Bollinger Canyon Road where the homeowners burn wood all winter and park on a long unpaved driveway that kicks up fine dust. Their air handler was caked with a mix of ash and road grit, and a camera inspection of the supply and return ducts showed heavy loading past the registers. We set up negative pressure with a HEPA filtration unit, ran Rotobrush agitation tools through every branch, and sealed two leaking trunk joints near the outbuilding system; the blower motor amp draw dropped back to spec and the family reported the wood-smoke smell in the bedrooms was gone. Call (361) 326-5060 to schedule your inspection.
NADCA, the National Air Duct Cleaners Association, requires source removal of all visible contaminants, protection of the HVAC system during cleaning, and containment of dislodged debris. For San Ramon ranch properties with multiple outbuildings, this means each air handler must be treated as a separate system with its own negative-air setup and agitation cycle. Crews that daisy-chain zones or skip outbuilding handlers fail the standard. Hollis follows NADCA protocols on every job, with camera documentation. Call (361) 326-5060 for a written scope of work.
The Diablo winds blow through the San Ramon Valley each autumn, carrying fine ash and particulate from wildfire activity in the surrounding hills. Homes near Las Trampas Ridge sit in the path of this drainage wind, and their intake vents pull that debris directly into the return duct. Without specialized HEPA vacuuming and duct sealing, the ash recirculates through bedrooms and living spaces for months. We see this pattern every October and November. Call (361) 326-5060 before wind season.
Yes, but only if the cleaning uses source removal with HEPA containment. Fine silica dust from unpaved roads passes through standard filters and embeds in duct linings. Shop-vac cleaning without negative pressure just re-enters the airstream within weeks. Our Nikro negative-air machines with HEPA filtration capture this particulate at the source. For homes on gravel driveways, we also inspect and seal intake boots to reduce future loading. Call (361) 326-5060 for an assessment.
Expect a longer, more careful job than a modern hard-duct system. Flexible duct from the 1990s, common in Gale Ranch and Windemere, has a wire helix inside insulation that can tear if agitated too aggressively. We use lower-RPM Rotobrush tools and inspect with a camera before and after to confirm the liner is intact. Many of these homes also have collapsed or sagging runs that need re-support, which we flag during the initial inspection. The typical cost for a 1990s-era home in San Ramon falls in the $450 – $650 range. Call (361) 326-5060 for a written estimate.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving San Ramon since 2004.