Air Duct and Dryer Vent Cleaning in Round Rock and Williamson County
Cedar pollen from mid-December, oak into May, ragweed from late August: a Round Rock duct system stores a year of it. A whole-house cleaning pulls that out under negative pressure and reseals the runs, and the price for the house is settled on the first call.
Working out of Round Rock. Georgetown, Cedar Park, Leander, Hutto and the rest of Williamson County are a short drive. Monday to Saturday, 7am to 7pm.
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Duct, vent and air handler work in Round Rock and across Williamson County
Air Duct Cleaning
Every supply, return and trunk line cleaned under negative pressure. One flat price for the whole house.
Dryer Vent Cleaning
Lint cleared from the dryer to the outside cap. Faster drying, lower bills, and the fire risk gone.
HVAC System Cleaning
The air handler itself cleaned: blower wheel, evaporator coil, drain pan and plenums.
Sanitizing & Mold Treatment
EPA-registered antimicrobial applied after cleaning, when there is a real reason for it. Never a surprise upsell.
Dryer Vent Repair
Crushed, disconnected, too-long or plastic vents replaced with rigid metal that meets code.
New Home & Post-Construction
Drywall dust, sawdust and construction debris pulled out of the ducts before you breathe it.
Commercial
Offices, medical, retail, restaurants and multi-family on a schedule, with documentation.
Cedar in January, the coil in August: a Round Rock duct calendar
Central Texas runs the air conditioner from March into November, and everything in the air, from cedar pollen in January and oak in the spring to fall ragweed, construction dust and pet dander, ends up in the ducts.
Mid-December to early March
Ashe juniper pollen starts in the middle of December, peaks in the middle of January and tapers off toward the start of March, and it is the one allergy season here that runs while the heat is on. The return pulls it in, the filter catches most of it, and the rest settles in the runs beside the oak that follows into late May and the ragweed that arrives in late August. A cleaning booked in the gap between ragweed and cedar, November into early December, empties the system before the heat comes on and sends a year of pollen back out of the registers.
Forty-six thousand permits
Williamson County permitted about 46,000 new housing units from 2021 through 2025, 15,036 of them in 2021 alone, and the Census Bureau put the county at 752,827 people in 2025, up 24 percent since 2020. Few of those homes had the ducts cleaned before the family moved in. The 2021 wave was the big one, and those houses in Hutto, Leander, Liberty Hill and Jarrell are now four and five years in with the builder's drywall dust still in the flex. Georgetown was the fastest growing city over 50,000 in the country for three years running through 2023 and passed 100,000 people in 2024, while out Williams Drive the earliest Sun City systems, installed from 1995 on, have reached thirty years and have usually never been opened. The cleaning is the same job at both ends: the runs go under negative pressure, get agitated, and get resealed at the collars where they have let go.
Which edition the vent is inspected to
Texas adopts the International Residential Code statewide, and the edition varies by city: Round Rock is on the 2024 edition, while Georgetown, Cedar Park and Leander are on the 2021 edition. Both editions cap a dryer exhaust duct at 35 feet, deducting 5 feet for every tight mitered 90-degree elbow and under 2 feet for a smooth long-radius one, and require smooth metal duct with no screws protruding more than an eighth of an inch into the airflow, a backdraft damper at the termination, and no screen on it. The practical difference between the two editions is nil: the 35-foot cap and the elbow deductions read the same, so a vent rerouted in Round Rock gets the same rigid metal duct, the same long-radius elbows and the same damper cap as one in Leander. What changes is the inspector, so the quote names the city before the work is priced. Repair and rerouting is $150 to $400.
August, not July
Austin's cooling load peaks in August, not July, at 706 degree days against 668. By then the system has run most of every day since May, and a dust-matted coil is what usually turns a Round Rock house into an ice-up call in the hottest month. The blower compartment is opened on every job and the wheel and the coil face are photographed. A clean photo ends the conversation. A dirty one gets a price, $249 to $349, and the decision stays with you.
What the house costs
$395 to $495 covers a single-system home: all the supplies and returns, both trunks, the plenums, and the resealing. A second system on the same trip is $250, common on the larger Georgetown and Liberty Hill lots. Dryer vent cleaning is $129 by itself and $475 to $575 together with the ducts, and a camera look before you commit to anything is $79, credited toward cleaning.
The number is set on the phone from the square footage, the thermostat count and the city the house sits in. Call (737) 249-6158 with those three things and the price is fixed before anyone drives to Round Rock.
Areas we serve around Round Rock
Georgetown's Sun City runs 30-year-old systems; Hutto and Liberty Hill run builder-fresh ones. Pick your town for what the job looks like there.
Frequently asked questions
Will cleaning the ducts before cedar season do anything?
Some, if the runs are the source. Cedar pollen starts in the middle of December and peaks in the middle of January, and what the filter misses settles in the flex and comes back out of the registers every time the heat cycles. A cleaning in November or early December takes out that stored load along with the fall ragweed. It does nothing for what blows in through an open door in January, so a good filter changed on schedule still matters more than any one visit.
What does a whole-house cleaning cost in Round Rock?
$395 to $495 for one system, with the supplies, returns, trunks and plenums all included and the collars resealed where they have pulled loose. A second system is $250 on the same visit. Dryer vent cleaning is $129 on its own, or $475 to $575 bundled with the ducts. If you want eyes on the runs before spending that, a camera inspection is $79, credited toward cleaning. The figure is set from the square footage and the thermostat count when you call, and it is the figure on the invoice.
The house in Hutto or Leander is three years old. Does it need cleaning yet?
Once, and sooner than most people think. Ninety-four percent of Hutto's homes and about 85 percent of Leander's were built since 2000, and the system in a new house usually ran through drywall sanding and texture before the builder handed over the keys. That dust sits in the low spots of the flex and shows up as a fine white film on the register faces. One cleaning after the builder is done, with the runs put under negative pressure, is the cleaning the house needs for years, and it is priced the same as any other single-system home.
The Sun City system is from the 1990s and has never been opened. Clean or replace?
Clean, in most cases. Sun City opened in 1995, so its earliest flex duct has spent 30 years in a Georgetown attic, and runs that age sag between the straps, pull loose at the collars and hold dust in every low spot. The crew lifts them back onto the supports, seals the collars and the plenum seams with mastic and pulls the debris out under negative pressure. Replacement only comes up when a liner has split or a run is flattened under something stored on top of it, and the photos settle that before any price is attached.
Taylor's older houses have metal trunk lines. Is that a different job?
Same price, longer visit. More than a third of Taylor's homes predate 1970, and those usually have a sheet-metal trunk with branch runs instead of attic flex. Metal does not sag or tear, but it holds decades of fine dust along every seam, and the brushes have to work each branch from the register back to the trunk. The flat rate for a single system covers it.
Have the square footage, the thermostat count and the city ready, and the price is settled in one call.