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 Brentwood
Air duct cleaning in Brentwood typically runs $350 – $650 for a whole residential system and $800 – $2,400 for commercial jobs, with one flat price per system agreed before we start. We serve Brentwood from our San Francisco Bay Area dispatch office, and our crews know the local housing stock: two-story stucco tract homes on post-tension slab foundations, most built between the 1990s and 2020s, with flex-duct runs baking in 130°F summer attics.
Call us at (361) 326-5060 for a free estimate. Our phones are answered by a live person 24 hours a day, 7 days a week, and we show up inside the window we promised.
Why Hollis Air Duct Cleaning Is Brentwood’s Preferred Air Duct Cleaning Company
We’ve been in business since 2004 as part of the Garrison Partners family, and our Air Duct Cleaning team has worked enough Brentwood homes to know what the soil and climate do to ductwork here. The Garrison Standard means we arrive inside the quoted window, price the job in writing before touching anything, and leave the site clean. 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 technicians are background-checked and uniformed. You know who’s walking into your home before they arrive. We don’t do per-vent pricing, teaser coupons, or estimates that balloon once the van is in your driveway. The price we write down is the price you pay.
Residential Air Duct Cleaning in Brentwood
Residential Air Duct Cleaning in Brentwood means source removal from the entire forced-air system: supply ducts, return ducts, trunk lines, and the air handler cabinet, using negative-air machines and rotary brush agitation. A typical whole-system cleaning in Brentwood runs $350 – $650, depending on system size, accessibility, and whether we find separated joints that need sealing.
Brentwood’s combination of expansive clay soils and slab-on-grade post-tension foundations creates a problem most out-of-town crews miss. The dry-season groundwater drawdown shrinks that clay, the foundation shifts, and duct joints at the plenum and boot connections pull apart. A cleaning that doesn’t check for those separations leaves you with clean ducts that still leak attic air into your living space. We include that inspection in every residential job, and we seal what we find under the same flat price per system.
Supply and Return Duct Cleaning
Supply ducts push conditioned air to your rooms; return ducts pull air back to the air handler. We clean both sides because debris in either one circulates through the entire loop. Our Rotobrush rotary brush systems and Nikro negative-air machines dislodge buildup at the source and capture it under controlled suction, not loose in your attic.
Video Inspection and Documentation
We run a camera through your ducts before and after the work. You see the condition of your own system, not a stock photo from someone else’s house. The after images go with your invoice, along with the written price and the 365-Day Done Right Promise.
Commercial Air Duct Cleaning in Brentwood
Commercial Air Duct Cleaning in Brentwood covers office buildings, retail spaces, medical suites, and multi-tenant properties with larger rooftop units and extensive trunk-and-branch duct networks. Typical commercial jobs in Brentwood run $800 – $2,400, scaled to square footage, system count, and access complexity.
Brentwood’s commercial growth along Highway 4 and the Sand Creek corridor has added a mix of 1990s-era strip retail and newer medical office construction. Both have accumulated runtime hours in dusty Delta-influenced air. We schedule commercial work to minimize disruption to your operation, and we price the full scope in writing before starting.
Multi-Unit and Retail Systems
Shared ductwork in commercial buildings means contamination in one tenant space can affect neighbors. We isolate zones, clean each separately, and document the work for property managers and facility directors who need records for insurance or lease compliance.
Rooftop Unit and Trunk Line Service
Brentwood’s commercial rooftop units work harder than their design specs intended during 100°F+ summer stretches. We clean the unit cabinet, blower assembly, and the full trunk line feeding the building, not just the accessible registers.
Trusted Brands We Service in Brentwood
We clean systems built around Honeywell, Aprilaire, and Guardsman filtration components, and we carry replacement parts for common Brentwood installations. Our equipment roster includes Rotobrush rotary brush systems and Nikro negative-air machines, the same tools commercial crews use, not hardware-store gear. If your system needs a filter upgrade or a damaged flex-duct section replaced while we’re in the attic, we can source it without a return trip. That matters in Brentwood, where a second dispatch across the Delta bridges costs you another day of waiting.
Common Air Duct Cleaning Problems We See in Brentwood Homes
- Plenum and boot separations from clay soil movement. Brentwood’s expansive clay soils shrink during dry-season groundwater drawdown, and slab-on-grade foundations shift enough to pull duct joints apart. We find separated plenum collars and loose boot connections in attics across the city, especially in 1990s-2000s tracts near Deer Ridge and Garin Parkway.
- Dust loading from Delta-influenced dry air. Brentwood’s hot, dry summers pull dust and soil particles directly into return grilles. Systems that haven’t been cleaned in 8-10 years show heavy accumulation in the return trunk and blower cabinet, restricting airflow and making the air handler work harder.
- Rodent damage in attic flex duct. Rare wet winters push rodents indoors and into attic duct chases. We find chewed flex-duct sections, especially in homes near open space or agricultural edges, and we repair or replace them as part of the cleaning scope.
- Weak or incomplete cleaning from per-vent operators. Crews who quote per-vent pricing often skip the trunk lines, plenum, and air handler, or they run a shop vac without negative pressure or HEPA filtration. That stirs dust into the 130°F attic and back through your returns instead of removing it.
Pricing for Air Duct Cleaning in Brentwood, CA
| Service | Typical Range in Brentwood |
|---|---|
| Residential whole-system cleaning | $350 – $650 |
| Residential cleaning + duct sealing | $550 – $950 |
| Commercial per system | $800 – $2,400 |
| Video inspection only | $150 – $250 |
These are honest whole-system ranges for the Brentwood market, not teaser prices that jump at the door. What moves the needle: system size (single versus multiple air handlers), attic accessibility, whether we find separated joints that need reconnection and sealing, and the condition of the flex-duct runs. We agree one flat price per system before any work starts. No per-vent pricing. No add-ons once the technician is inside. Call (361) 326-5060 for a free estimate.
We Also Serve Cities Near Brentwood
Our crews work throughout eastern Contra Costa County, including Air Duct Cleaning in Brentwood and neighboring Oakley, Discovery Bay, Antioch, and Clayton. The same flat pricing, written guarantees, and 365-Day Done Right Promise apply in every community we serve.
Serving Brentwood, CA - Our Local Coverage Area
We’re based in the Brentwood 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 Brentwood
Every 7 to 10 years for most Brentwood homes, or after any major renovation, rodent infestation, or visible mold event. The dry Delta dust and heavy summer runtime here load systems faster than milder climates, but annual cleaning is unnecessary and we won’t sell it. Call (361) 326-5060 if you’re unsure whether yours is due.
The full cleaning of supply ducts, return ducts, trunk lines, plenum, and air handler cabinet, plus video inspection before and after, and documentation of your own ducts. If we find separated plenum or boot joints from soil movement, reconnection and sealing are included at no additional charge. The price we write down is the price you pay.
Yes. Brentwood’s expansive clay soils shrink during dry-season groundwater drawdown, and slab-on-grade post-tension foundations shift enough to pull duct joints apart at the plenum and boot connections. We inspect for this separation on every job because a cleaning that misses it leaves you with clean ducts that still leak attic air. In the Deer Ridge tract off Balfour Road, our tech opened up a 2003 two-story stucco home’s attic and found the return-side flex duct run separated from the plenum collar, with a boot joint at the second-floor hallway register pulled loose. We reconnected and sealed both joints, ran negative pressure source removal through the supply and return ducts with agitation tools, and documented the before-and-after photographs of the homeowner’s own ducts.
No. Duct cleaning is a scheduled job that requires proper equipment loading and a realistic time block. We don’t promise what we can’t guarantee. We do promise to show up inside the window we quote, with background-checked, uniformed technicians, and to price the job in writing before we start. Call (361) 326-5060 to schedule.
Your own ductwork, not stock images. The before images show dust accumulation, debris, and any joint separations or rodent damage we found. The after images show clean duct walls, reconnected and sealed joints, and clear airflow paths. We deliver these with your invoice, along with the written 365-Day Done Right Promise. If anything in those photos doesn’t match what you expected, we address it before we leave.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Brentwood and the San Francisco Bay Area since 2004.