HVAC Cleaning in San Marcos - One Flat Price, Before-and-After Photos

Fast, Reliable HVAC Cleaning Across San Marcos

HVAC cleaning in San Marcos, TX runs most standard whole-home jobs between $425 and $825, and you can usually get on the schedule within a few days, not weeks. That’s the honest range we quote over the phone at Cardinal Air Duct Austin before a tech ever parks in your driveway. Our crews know the San Marcos market well, from the new builds off 123 to the older east-side streets where attics get hot enough to bake flex duct. Call (940) 283-6595 for a written quote from Omar Haddad and the team, no opening-the-walls pricing games.

Call (940) 283-6595

We coordinate scheduling from our Austin office, but the technicians who show up at your door serve San Marcos directly. They know which subdivisions have rat pressure, which track homes have original ductwork, and what construction dust does to a brand-new air handler. That local knowledge matters more than any coupon.

Why Cardinal Air Duct Austin Is San Marcos’s Preferred HVAC Cleaning Company

Homeowners in San Marcos tell us the same thing over and over: they had no idea how much junk was in their ducts until we showed them the before-and-after photos. That’s the Relay Standard at work. Every job comes with photo documentation, a trackable arrival window, and a digital invoice you can pay from your phone. No guessing who’s coming, no wondering what was actually done.

Omar Haddad leads the crew, and every technician is background-checked and uniformed. You’ll know your tech’s name before they knock. We run Rotobrush rotary brush systems and Nikro HEPA vacuums, not a shop-vac taped to a drill. The difference shows in the photos we hand you at the end.

Our HVAC Cleaning team has cleaned systems in houses across Hays County, and the feedback we hear most from San Marcos customers is that the price we quoted is the price they paid. That’s the whole point of a written price before work starts. The 365-Day Done Right Promise backs every job: if the work isn’t right within a full year, we return and correct it at no charge.

AC Duct Cleaning in San Marcos

AC Duct Cleaning in San Marcos is the service we recommend most often, because this city’s climate keeps air conditioners running from March through October and sometimes into November. That means dust, pollen, and Hill Country debris cycle through your ducts constantly. We clean the full supply and return runs with negative-pressure extraction, which means debris goes into the HEPA vacuum, not back into your living room. A standard single-family home in San Marcos typically runs $450 to $700 depending on system size and access.

Sizing the Job to the Home

Older homes in the east-side neighborhoods often have longer duct runs and tighter attic spaces, so the job takes longer and the price lands on the upper end. Newer builds near Willow Creek or Trace are more about construction dust than age, so the work is usually faster but no less important. We quote by the system, not by the vent.

When New Builds Still Need Cleaning

If you just closed on a house near La Cima, don’t assume the ducts are clean just because the house is new. Builders rarely clean after drywall, and that dust settles in the coils and blower. A post-construction clean runs $500 to $750 and should happen before you move furniture in, not after the dust has had a month to circulate.

Furnace Cleaning in San Marcos

Furnace Cleaning in San Marcos covers the blower assembly, heat exchanger, and interior cabinet of the furnace side of your HVAC system. Even though San Marcos winters are mild, that furnace still cycles often enough on those 40-degree Hill Country nights to pull dust through the burners and blower wheel. Most furnace cleanings here run $200 to $350 as a standalone service, or $150 to $250 when bundled with a full AC duct cleaning. It’s a smaller job than the duct work, but it matters for efficiency and for not blowing burnt dust into the house on the first cold snap.

Heat Exchanger Inspection Included

We inspect the heat exchanger as part of the clean. On older units in 80s-era homes around the east side, hairline cracks are common, and a cracked heat exchanger is a carbon monoxide risk. We’re not there to sell you a new furnace, but we’ll always tell you if the one you have needs a second look.

Blower Motor and Evaporator Coil

When the blower is out, we clean the wheel fins and the housing, and we treat the evaporator coil if it’s accessible. A dirty coil on a furnace running in winter reduces airflow and efficiency. For San Marcos homes with both gas heat and central AC, this two-in-one service usually runs $325 to $450 total.

Trusted Brands We Service in San Marcos

We work on systems from every major brand: Trane, Carrier, Lennox, Goodman, Rheem, and York. When filtration upgrades come up, we carry Aprilaire and Honeywell media cabinets, plus Guardsman UV treatment systems for coil maintenance. We stock common filter sizes and blower parts for San Marcos jobs, so a clogged MERV 13 or a worn blower capacitor doesn’t mean a second trip. If your system uses a specialty filter or an odd-sized access panel, we’ll note it in the quote so you know exactly what’s coming.

Common HVAC Cleaning Problems We See in San Marcos Homes

• Post-construction dust in new builds: Drywall dust and trim debris left in flex runs after handover. We see it constantly in homes off Highway 123 and around Blanco Vista, and it keeps showing up in the blower and on the registers for months if not cleaned.
• Original flex duct failures in older east-side homes: Sagging, crushed, or disconnected duct runs in unconditioned attics, often from roof rat activity. We clean what’s there and flag what needs replacement, especially before a first big rain season.
• Pollen and Hill Country dust overloading blowers: High pollen seasons fill filters fast, and when a filter is clogged, the blower works harder and the ducts collect allergens quicker. We explain how a media cabinet upgrade changes that for San Marcos specifically.
• Musty odor after spring rains: Moisture that follows a roof-rat-damaged duct or a disconnected run creates that musty smell from vents. A proper duct cleaning with agitation and HEPA extraction addresses the debris; the repair is part of the work if needed.

Pricing for HVAC Cleaning in San Marcos, TX

We Also Serve Cities Near San Marcos

Cardinal Air Duct Austin serves homeowners across the I-35 corridor. Beyond San Marcos, we regularly schedule HVAC Cleaning in San Marcos jobs that stretch north into Buda and south toward Austin, and we take calls from Manor and Pflugerville as well. If you’re within 30 minutes of San Marcos, we can usually get you on the schedule the same week you call.

FAQs About HVAC Cleaning in San Marcos