Frequently Asked Questions

We connect a high-powered HEPA-filtered vacuum system to your ductwork, creating negative pressure that pulls loosened debris out of the entire system. Then we agitate the interior walls of each duct using rotating brush systems from brands like Rotobrush and Nikro, dislodging dust, pet hair, and construction debris. We clean supply and return plenums, registers, and the blower compartment. The process typically takes 2 to 4 hours and leaves your home cleaner than we found it.

Most single-family homes in Brentwood take between 2 and 4 hours from setup to final walkthrough. Larger properties with multiple zones, or homes that haven't been cleaned in a decade or more, can take longer. We protect your floors with corner guards and drop cloths, and we clean up thoroughly before we leave. You'll see before-and-after photos of your own ducts so you know exactly what was removed.

No. Our system is a closed-loop negative-air process, meaning debris is pulled directly into our containment unit rather than blown into your living space. We seal registers as we work, protect flooring, and run HEPA-filtered exhaust. Brentwood homes with white carpets or light-colored furniture don't need to worry about soot or dust escaping. We leave the home as clean as we found it, and usually cleaner.

You don't need to be home for the entire process, but we do ask that an adult be present for the first 15 minutes so we can walk through the plan, confirm access points, and answer any questions. After that, many Brentwood homeowners run errands or work from a coffee shop while we finish. We'll walk you through everything when we're done, including photos of the before and after.

In Brentwood's climate, every 3 to 5 years is a reasonable interval for most homes. If you have shedding pets, recently completed a remodel, or live near the 405 where fine particulate settles faster, you may want every 2 to 3 years. Newer homes that were built within the last few years often need an initial cleaning sooner because construction debris gets trapped in ducts during the build. We'll give you an honest recommendation based on what we find.

You can clean the visible register covers and the first few inches of ductwork with a shop vac, but a household vacuum doesn't have the reach, negative pressure, or agitation power to clean the full run of ducts. The equipment we use from Abatement Technologies generates thousands of CFM of airflow and uses rotating brushes that reach deep into the system. Duct cleaning is safe to observe but frustrating to attempt piecemeal, and a partial cleaning often just loosens debris that then blows into the home.

Duct cleaning addresses the HVAC system: supply and return ducts, plenums, blower, and registers. Dryer vent cleaning is a separate service focused on the exhaust line from your clothes dryer to the outside of the home. Clogged dryer vents are a leading cause of house fires, and in Brentwood, where laundry rooms are often interior to the home, that vent run can be long and lint-packed. We can quote both services and often recommend doing them together if your dryer vent hasn't been checked recently.

We use professional-grade systems from Rotobrush, Nikro, and Abatement Technologies. These are the brands you'll find on commercial cleaning trucks and in professional remediation fleets, not homeowner-grade tools from a hardware store. Each offers something different: Rotobrush for agitation in tight residential ducts, Nikro for HEPA-filtered negative air, and Abatement Technologies for containment and filtration. We choose the tool that matches your home's duct layout and condition.

We don't push chemical sanitizers unless you specifically request them and we've discussed the product, its purpose, and any sensitivities in your household. Many Brentwood homes have family members with allergies or chemical sensitivities, and the mechanical cleaning itself resolves most dust and odor issues without adding anything to the air stream. If a sanitizer is appropriate, we'll discuss it beforehand and never apply it as a surprise upsell.

No. Our brushes are designed for both rigid metal ducts and flexible insulated ducts. We inspect the system before we start and adjust the agitation method to match the material. Flex duct in particular requires a gentler approach, and our technicians are trained to identify when a duct run is too fragile for brushing and needs a lower-pressure method instead. Older Brentwood homes with original ductwork are common, and we treat that ductwork accordingly.

We can replace standard-size air filters if you have them on hand, or we'll note the size and recommend a replacement schedule. We don't carry every filter size on the truck, but we'll tell you exactly what your system uses and where to get it locally in Brentwood. A clean duct system with a clogged filter is a fast way back to square one, so we make sure you know what to buy and how often to change it.

Yes. Every technician working under our name is required to hold the license and insurance their state requires, and we carry liability coverage for the work we perform in your home. We're happy to provide proof of coverage before we start. Brentwood homeowners should never let anyone into their attic or crawlspace without verifying these basics, and we've made it standard practice to have documentation ready when you ask.

Duct cleaning itself doesn't require a permit in Brentwood or in Los Angeles County. It's a maintenance service, not a structural or mechanical alteration. If we find damage during a cleaning (a disconnected run, crushed duct, or mold that requires remediation), we'll tell you and you can decide how to proceed. Any repairs beyond cleaning may require a licensed HVAC contractor, and we'll point you in the right direction honestly.

We schedule duct cleaning by appointment, and same-day availability depends on our calendar. Duct cleaning is a scheduled job, not an emergency call, and doing it properly means allocating 2 to 4 hours per home. Call (833) 631-4988 during business hours to check what's available. Our hours are Monday through Friday from 7:00 AM to 7:00 PM and Sunday from 7:00 AM to 7:00 PM. We're closed Saturdays.

Visible mold in your ductwork or a persistent musty smell when the HVAC runs warrants a professional inspection sooner rather than later. We can inspect your system, document what's there with photos, and clean the affected ducts. If the mold extends into insulation or drywall, that's a remediation issue beyond duct cleaning, and we'll say so plainly. Brentwood's coastal moisture and older homes with poor ventilation make this more common than homeowners expect. Call (833) 631-4988 to schedule an inspection.

We're open Sundays from 7:00 AM to 7:00 PM for duct cleaning appointments. Saturdays we're closed so the team can rest and maintain equipment. If a weekend appointment matters to you, Sunday is the day to book, and we recommend calling a few days ahead since weekend slots fill first.

Yes. We stand behind every cleaning we perform in Brentwood. If you're not satisfied with the results, tell us within a reasonable window and we'll return to re-clean the areas in question at no charge. We show before-and-after photos of your actual ducts so you can see the work was done, and we document what we removed. That's our guarantee, and we don't hide behind fine print.

We provide before-and-after photos of your ductwork, taken from the access points we open. You'll see the difference in the duct interior, the plenum, and the blower compartment. We also walk through the system with you when we're done and point out anything we found: pet hair buildup, construction debris, disconnected runs, or signs of pests. A reputable Brentwood duct cleaner should always be willing to show their work. We insist on it.

Our satisfaction guarantee covers re-cleaning any area that didn't meet expectations, provided you notify us within 30 days of service. Duct cleaning isn't a permanent fix; new dust will accumulate over time, especially in Brentwood's dry, dusty summers. But if something we missed becomes apparent shortly after the job, we make it right without charging you again. That's the whole promise.

Written by the team at Duct Cleaning Brentwood, serving Brentwood and the surrounding Westside neighborhoods since 2018.