Frequently Asked Questions

We connect a high-powered negative-air vacuum to your system, then use agitation tools and compressed air to dislodge dust, debris, and buildup from the duct walls. The vacuum pulls everything into a containment unit rather than redistributing it through your home. We cover supply ducts, return ducts, main trunk lines, and registers. The entire process typically takes 2 to 4 hours for an average Austin home, and you'll see photos of every stage.

Plan on 2 to 4 hours for a typical single-family home in Austin. Larger homes with complex layouts or heavily soiled systems will take longer. We'll give you a clear time estimate before we start, and our live arrival tracking means you won't be waiting around for a four-hour window wondering where we are. When we schedule your appointment, you'll know when we're actually on the way.

Yes, we recommend being home for at least the start and end of the appointment. Austin homeowners tell us the best part is seeing the before-and-after photos in person and asking questions while the work happens. We'll walk through the system with you, show you what we found, and document everything. If you can't be home the full time, we can work that out in advance on the phone.

No. Our equipment uses contained negative-pressure collection, which means what comes out of your ducts goes into our equipment, not your living room. We protect flooring around work areas and clean up any residual dust from register removal. You won't come home to a film of dust on every surface. If anything does get kicked up, it's minimal and easily wiped down.

Every 3 to 5 years is a good baseline for most Austin homes. You may need it more often if you have shedding pets, live near active construction, recently renovated, or deal with seasonal allergy issues from our cedar and oak pollen seasons. Homes in areas like Buda and Hutto with newer construction often benefit from a cleaning sooner because drywall dust and construction debris settle in the ductwork. We'll give you an honest recommendation after inspecting your system.

Supply and return ducts, main trunk lines, registers, and grilles are all cleaned. We also inspect the system for leaks, damage, and heavy buildup as part of the process. Some homes need additional services like dryer vent cleaning or coil cleaning, which we'll discuss with you based on what we see. The core cleaning is one flat price, agreed in writing before we begin.

We use professional-grade negative-air machines and HEPA-filtered collection systems, including Abatement Technologies equipment built for high-volume residential and commercial cleaning. These are the same systems used by certified indoor air quality contractors across the country, and they're built to contain what they remove rather than recirculate it. The machines connect to your ductwork and pull dislodged debris out under continuous negative pressure while our technicians work.

When done properly with the right equipment, no. We use controlled pressure and agitation tools designed for residential ductwork, not oversized industrial equipment that could damage connections. Part of our process includes inspecting your system before and after to confirm nothing shifted or loosened. That said, if your ductwork is old or already compromised, we'll flag it before proceeding so you can decide how to handle it.

We generally recommend pleated MERV 8 to MERV 13 filters for most Austin homes, depending on your system's age and capacity. Honeywell and Aprilaire both make solid options that balance filtration with airflow. The main thing is replacing them regularly, especially during our spring pollen rush and fall dust season. A higher MERV isn't always better if your blower can't handle the restriction. We'll check your filter size and condition during the cleaning and point you in the right direction.

Only if they're damaged, leaking badly, or contaminated with something cleaning can't address, like mold deep in porous insulation or pest infestation. Most Austin homes have metal or flex duct that responds well to professional cleaning. Replacement is a much larger expense, so cleaning is almost always the right first step. If we see damage during the inspection, we'll show you photos and talk through your options without pressuring you.

Every technician working under the Cardinal Air Duct Austin name is required to hold the license and insurance their state requires. We also carry appropriate liability coverage for work in residential homes across Austin, Cedar Park, Pflugerville, and the surrounding areas. If you want to verify coverage details before scheduling, call (940) 283-6595 and our team will walk you through what applies to your specific job.

The pros who work under our name are required to meet the screening standards set by the brand, which includes professional vetting before they enter customer homes. Beyond credentials, we look for technicians who communicate clearly and treat your home with respect. When your appointment is scheduled, you'll know who is coming and when they'll arrive through our live tracking system.

It depends on the schedule. We book appointments Monday through Friday from 7:00 AM to 7:00 PM and Sunday from 7:00 AM to 7:00 PM. If we have an opening, we can sometimes accommodate a same-day request, but air duct cleaning is a scheduled service, not an emergency call. The best way to find out is to call (940) 283-6595 and ask what's available. We'll give you a straight answer, not a runaround.

We're available on Sundays from 7:00 AM to 7:00 PM. Saturdays are closed. Sunday appointments tend to book quickly, especially during spring pollen season, so calling a few days ahead gives you the best options. We'll give you a live arrival time when we schedule, not a vague window that leaves you stuck at home all day.

Call us when you can. Our scheduling coordinator answers during business hours and will get you on the calendar for the next available slot. We know Austin homeowners have packed schedules, which is why we book in a tap and send text confirmations with a live arrival link. No phone tag, no waiting around. If our hours don't fit your week, call and we'll see what we can work out.

Yes. Every job is covered by The Relay Visibility Guarantee, which means a written price before work starts, a live arrival time you can track, photo updates before and after, and a digital invoice you can pay from your phone. If something isn't right with the work we did, call us and we'll make it right. You'll never be left chasing a voicemail box wondering what happened.

The written price covers the full air duct cleaning of your system as quoted. No per-vent upcharges, no surprise add-ons. If we find something that genuinely needs additional work beyond the original scope, we'll show you photos and agree on any extra cost before we proceed. You'll never get a larger invoice than what was agreed unless you explicitly approved additional work.

After the job is complete, we text you a digital invoice with a payment link. Pay from your phone, no checkbook required. If you need financing or want to discuss payment options, call (940) 283-6595 before your appointment and we'll sort it out.

If you see heavy dust return within a few months, something else is going on, typically a leaky return pulling unfiltered attic air, a missing filter slot cover, or duct damage. We inspect for those issues during the cleaning and flag anything we find. If we cleaned your system and you're seeing rapid re-contamination, call us. We'll send someone out to investigate and figure out what's actually happening.

We serve Austin proper plus Cedar Park, Buda, San Marcos, Manor, Jollyville, Wells Branch, Shady Hollow, Lost Creek, Hornsby Bend, Pflugerville, and Lakeway. If you're within reasonable driving distance of the city and don't see your neighborhood listed, call (940) 283-6595 and ask. Chances are we can get you on the schedule.

Austin's allergy seasons are brutal, cedar fever in winter, oak pollen in spring, and ragweed through late summer. Plus our dry, dusty stretches mean HVAC systems run hard for months at a time. All of that pulls airborne particles into your ductwork, where they accumulate and recirculate. Homes in heavily treed areas like Lost Creek and Shady Hollow tend to see heavier buildup from pollen and leaf debris. A clean system simply gives you less of that stuff moving through your air.

Written by Omar Haddad, Owner at Cardinal Air Duct Austin, serving Austin since 2005.