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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Before
AfterAir Duct Cleaning Company in San Marcos, TX
Air duct cleaning in San Marcos, TX typically runs $380 – $670 for a standard single-system home, and most jobs wrap up in 3 to 5 hours. San Marcos homes pull double duty: limestone dust from the Hill Country, pollen from mature live oaks, and the near-constant humidity of the San Marcos River corridor all end up in the ductwork. We’re Cardinal Air Duct Cleaning, part of the Relay Home Co. family, and we work across San Marcos with a written price before any tools come off the truck. Call (737) 727-2314 for a quote that won’t change at the door.
Why San Marcos Homes Are Different
San Marcos sits in a transition zone between Blackland Prairie soil and Hill Country limestone, and that combination shows up inside ductwork. Homes near Purgatory Creek and the Blanco River corridor pick up fine, pale dust that recirculates through returns. Older neighborhoods like Blanco Vista and the streets off Hopkins and Cheatham have a mix of 1970s and 1980s builds with rigid metal ducts, while newer developments toward Rattler Road and McCarty Lane run flexible ductwork that collects debris differently. The humidity from the river doesn’t just feel heavy; it lets dust cake onto duct walls and gives organic matter a chance to grow, which means a routine cleaning here isn’t the same job as a dry-climate cleaning. Texas State University’s rental turnover adds another layer: move-out cleans often reveal years of accumulated pet hair, candle soot, and construction dust in supply trunks and return plenums.
Air Duct Cleaning work in San Marcos, CA.
Spring allergy season hits harder here than most of Central Texas. Live oak pollen gathers on return grilles starting in February, and by May the cottonwood near the river sends fibers into outdoor units and crawl spaces. Homes east of I-35 often sit on flatter, older lots where outdoor condenser coils run closer to ground-level dust; homes west of the interstate up into the Hill Country slope get more cedar pollen but less construction dust. Those conditions change how frequently a cleaning makes sense, not just how it’s done.
Our Main San Marcos Services
Air Duct Cleaning and Dryer Vent Cleaning are the two calls that dominate our San Marcos schedule, with HVAC coil cleaning close behind once summer cooling season starts.
Dryer Vent Cleaning in San Marcos
Dryer vents in San Marcos run long in two-story builds and through exterior walls that face the afternoon sun, and lint plus humidity from river-level air hardens faster than most homeowners expect. A clogged vent lengthens dry cycles and sends the dryer’s heat back into the laundry room. We use HEPA extraction to pull lint, bird nesting, and the fine dust that settles in low elbows in ranch and two-story floorplans near Sessom Drive and Bishop Street. Full Dryer Vent Cleaning in San Marcos details are on its own page.
Air Duct Cleaning in San Marcos
Our whole-system cleaning covers supply ducts, return ducts, trunk lines, and the plenum on both sides of the blower. In San Marcos we often find construction dust and drywall fines sealed inside ducts from quick builder-grade jobs, plus the pollen load that accumulates from February through June. The work runs the same way every time: source-removal cleaning with a Rotobrush rotary brush, negative-pressure extraction so loosened debris goes into the vacuum rather than back into your living room, and before-and-after camera shots of the ducts themselves. See Air Duct Cleaning in San Marcos for the full local breakdown.
HVAC Cleaning in San Marcos
HVAC cleaning here means pulling and cleaning the evaporator coil, blower motor, housing, and drain pan. San Marcos humidity makes the evaporator coil a magnet for the fine limestone dust that slips past a dirty filter, and a fouled coil pushes cooling costs up and shortens equipment life. Our techs clean the coil in place with professional-grade cleaners, clear the condensate drain line, and restore airflow before summer’s first 100-degree stretch. The complete HVAC Cleaning in San Marcos service page covers pricing and scheduling.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in San Marcos
Our techs work on equipment from every major manufacturer and we carry common filter and component stock across San Marcos. Rotobrush brush systems, Nikro HEPA vacuums, and Abatement Technologies containment units come off our trucks on most jobs, and we install Aprilaire, Honeywell, and Guardsman filtration products where the air needs improvement. Check our brands for compatibility specifics.
Pricing for Air Duct Cleaning Company in San Marcos, TX
| Service | Typical Range in San Marcos |
|---|---|
| Standard whole-home air duct cleaning (single system) | $380 – $670 |
| Whole-home air duct cleaning plus HVAC coil cleaning | $520 – $780 |
| Dryer vent cleaning (roof or exterior wall termination) | $115 – $210 |
| Dryer vent cleaning plus air duct cleaning (combined) | $470 – $790 |
| HVAC coil cleaning only (evaporator, blower, housing) | $180 – $320 |
| HVAC cleaning plus air duct cleaning (combined) | $560 – $840 |
| Return duct cleaning only | $150 – $280 |
| Supply duct cleaning only | $150 – $280 |
Jobs on the higher end of these ranges usually mean a two-story home with long duct runs, a heavily soiled evaporator coil from river humidity, or a system that hasn’t been opened in years. Whatever the number, you get it in writing before we touch a single vent. That written price does not change at the door.
Neighborhoods We Serve in San Marcos
We schedule jobs across the full San Marcos footprint and generally reach most homes within a day of booking. The neighborhoods below represent the spread of our local work, from the older streets near campus to the newer subdivisions further out.
- Blanco Vista
- La Cima
- Whisper
- Cottonwood Creek
- Trace
Service Area – Cities Near San Marcos
Our San Marcos crews also handle jobs in nearby cities along the I-35 corridor and the Hill Country edge. We regularly serve Kyle, TX to the north, New Braunfels, TX to the south, Buda, TX toward Austin, and Canyon Lake, CA.
Serving San Marcos, TX - Our Local Coverage Area
We’re based in the San Marcos 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 Company in San Marcos
No. Air duct cleaning, dryer vent cleaning, and HVAC cleaning do not require a city permit in San Marcos. These are maintenance services, not structural or mechanical installations. HOA rules in some San Marcos communities may restrict roof access for dryer vent terminations, so if you’re in an HOA, check the architectural guidelines before scheduling roof work.
Most San Marcos appointments are booked within one to two business days, and we schedule a specific window you can track live through The Relay Standard. We do not do four-hour arrival guesses. Call (737) 727-2314 and a live person answers, even at odd hours.
Yes. The river-level humidity here lets dust stick to duct surfaces rather than staying dry and loose, which means buildup happens faster than in drier parts of Central Texas. Many San Marcos homes benefit from a cleaning every 3 to 5 years, with homes near the river or with heavy pollen exposure sometimes needing it sooner. Call (737) 727-2314 for an exact recommendation based on your square footage and system condition.
Call (737) 727-2314 for a free estimate on air duct cleaning in San Marcos. A live person answers, the price is written before any work starts, and every job carries the 365-Day Done Right Promise. If the work isn’t right within a year, we come back and make it right at no charge.
What happens when you call
- 1A real person answersNo phone trees - talk to a local air duct cleaning pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What San Marcos Customers Say
"Booked a slot in the app, got a reminder text, and watched the crew's van on the map as it came. Cleaned all the vents and the main trunk. Easy from start to finish."
- Rob J."Cleaning plus HVAC coil clean. Tech texted when he was ten minutes away. No surprises on the price."
- Evan S."Dryer vent fix fixed the burning smell. The clog was behind the elbow and the whole laundry room smells normal now."
- Dennis K.