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 Pleasant Hill
Air duct cleaning in Pleasant Hill, CA typically runs $350 – $650 for a full residential system and is usually completed in one scheduled visit. Our crews serve Pleasant Hill from the San Francisco Bay Area office, with dispatch coordinated to reach homes from Gregory Lane to the open land near Paso Nogal Park inside a reasonable window. Call (361) 326-5060 for a free written estimate.
We’ve worked on enough Pleasant Hill homes to know the local pattern: mid-century ranches with original galvanized trunks, 1970s two-story tracts with degrading foil flex duct, and the newer builds that still pull wildfire ash through ridge vents designed for a different era. The Diablo Valley’s hot, dry summers and oak-woodland pollen load mean ducts here work harder than coastal systems. Our Air Duct Cleaning team treats that context as standard, not an afterthought.
Why Hollis Air Duct Cleaning Is Pleasant Hill’s Preferred Air Duct Cleaning Company
Hollis has been part of the Garrison Partners family since 2004, and our Pleasant Hill work is built on The Garrison Standard: written price before any tool touches your system, background-checked uniformed technicians, and a 365-Day Done Right Promise backed in writing on every job. If the work fails within a year, we return and make it right at no charge, including a free second visit.
Our crews know the difference between a 1950s ranch off Taylor Blvd and a 1980s tract near Contra Costa Boulevard. That matters because the duct materials, the leak points, and the contamination pathways are different. We don’t guess. We inspect with a camera first, price in writing second, then clean by the book. Phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops. No callback queues.
Air Duct Repair in Pleasant Hill
Air Duct Repair in Pleasant Hill usually addresses the original galvanized steel or foil flex ducting installed in the 1950s through 1980s build eras that dominate this city’s housing stock. These systems leak at collars, sag at supports, and tear where decades of thermal cycling have degraded the material. Repair costs in Pleasant Hill typically run $400 – $900 depending on accessibility and the extent of the damage. We price the repair in writing before starting, and every repair carries our 365-Day Done Right Promise.
Sealing Leaky Trunks and Collars
Original galvanized trunks in Pleasant Hill’s mid-century homes leak at every joint and collar. We seal with mastic and mechanical fasteners, not tape that will dry and fail in the next hot Diablo Valley summer. A sealed system holds the cleaning results and keeps wildfire smoke out.
Replacing Degraded Flex Duct
Foil flex duct from the 1970s and 80s turns brittle and tears at the plenum connection. We replace damaged sections with new flex rated for the temperature swings these attics see, supported properly so it doesn’t sag and collect debris.
Ductwork Cleaning in Pleasant Hill
Ductwork Cleaning in Pleasant Hill means source removal under NADCA standards, not a vacuum waved at the register. Our process: camera inspection first, then agitation with rotary brushes under negative-air pressure, HEPA filtration on the exhaust, and a post-clean verification scan. For a typical Pleasant Hill home, ductwork cleaning runs $350 – $650 for the full system. We do not price per vent. One flat price per system, agreed in writing before we start.
Negative-Air Method with HEPA Containment
We connect a Nikro negative-air machine to your trunk line. It pulls 2,000+ CFM of continuous suction while Rotobrush rotary whips knock debris loose from the duct walls. The HEPA filter on the exhaust captures particles down to 0.3 microns, so what we pull out of your ducts doesn’t end up in your living room.
Post-Clean Verification
After agitation and extraction, we run the camera again. You see the before and after. If the duct doesn’t pass visual inspection, we re-clean at no additional charge. That’s The Garrison Standard.
Trusted Brands We Service in Pleasant Hill
We stock and service filtration and cleaning equipment from Aprilaire, Abatement Technologies, and Guardsman, with parts available for Pleasant Hill customers without the multi-week wait times that plague smaller outfits. Our Rotobrush and Nikro systems are the same tools commercial crews use in hospitals and schools. When your Aprilaire media cabinet needs replacement after a heavy smoke season, or your Guardsman UV system needs a new lamp, we carry the part and install it during the same visit. No return trip. No delay.
Common Air Duct Cleaning Problems We See in Pleasant Hill Homes
- Ridge-vent smoke infiltration: Homes on the ridge side of Gregory Lane and near Paso Nogal Park pull wildfire ash directly into the return system through attic ridge vents. The house may not smell smoky, but the blower motor and filter cabinet collect fine gray-brown char that recirculates for months.
- Original galvanized trunks leaking at every joint: The 1950s-60s ranch stock in Pleasant Hill was built with galvanized steel duct that corrodes and separates at the seams. A cleaning without sealing just re-loads the house on the next hot, dry day when the system pulls attic air through those gaps.
- Degrading foil flex duct from the 1970s-80s tracts: The two-story homes near Contra Costa Boulevard and the 1980s infill developments used foil flex that tears at collars and sags between supports. These leaks bypass the filter entirely, pulling garage dust, pollen, and ash straight into the living space.
- Oak-pollen and unpaved-road dust loading on rural-edge properties: Homes backing open land off Taylor Blvd and the service roads near the oak woodlands see two to three times the particulate load of in-town properties. The standard “every three to five years” interval doesn’t apply here; these systems need attention every two to three years.
Pricing for Air Duct Cleaning in Pleasant Hill, CA
A typical full-system residential duct cleaning in Pleasant Hill runs $350 – $650. Commercial systems start around $800 and scale with square footage and HVAC unit count. Duct repair work runs $400 – $900. Dryer vent cleaning, often booked alongside duct work, is $150 – $250.
What moves the price: system size, accessibility (crawl space vs. attic), condition of the existing duct material, and whether we find damage that needs repair before cleaning is worthwhile. We inspect with a camera first, then give you a written price. That price does not move at the door. No per-vent add-ons. No coupon that balloons into something else.
Call (361) 326-5060 for a free written estimate. We’ll ask about your home’s age, neighborhood, and any recent wildfire exposure so we can quote accurately before arriving.
We Also Serve Cities Near Pleasant Hill
Our crews work throughout the Diablo Valley. We regularly clean ducts in Pleasant Hill and neighboring Concord, Martinez, Lafayette, and Walnut Creek. The same written pricing, same 365-Day Done Right Promise, same live-answer scheduling applies in every city we serve.
Serving Pleasant Hill, CA - Our Local Coverage Area
We’re based in the Pleasant Hill 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 Pleasant Hill
Every two to three years, not the generic three-to-five figure you see elsewhere. The oak-woodland edge properties near Paso Nogal Park and along Taylor Blvd pull heavy pollen loads and unpaved-road dust that urban systems don’t see. After a significant wildfire season, inspect sooner. Call (361) 326-5060 and we’ll check your filter cabinet and blower motor for ash loading.
Yes. Wood heat produces fine particulate that bypasses most filtration and deposits in the return duct. If you burn regularly during Diablo Valley winter inversions, plan on cleaning every two years and consider upgrading to a higher-efficiency Aprilaire media filter. We can assess your current filtration during the free estimate.
It starts with a camera inspection to locate tears and sags, because agitating damaged flex can make it worse. We repair or replace compromised sections first, then use rotary brush agitation under negative-air pressure with HEPA exhaust filtration. Post-clean, we verify with another camera pass. Anything less skips steps that matter for these older systems.
Ridge vents create a direct pathway from attic to return plenum in many 1950s-80s roofs here. Smoke three ridges away can deposit fine ash on the blower motor even when the house itself never smelled smoky. We inspect the plenum seal and the attic return path, then seal the leak so the next smoke event stays in the attic where it belongs.
Yes. We’ve cleaned shop systems, studio HVAC, and barn conversions on rural-edge Pleasant Hill properties. These systems often use residential-scale equipment with heavier loading from dust and chemical fumes. We price them as separate systems and apply the same camera-inspect, agitate, verify sequence. Call (361) 326-5060 to describe your setup and get a written quote.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Pleasant Hill and the Diablo Valley since 2004.