Air Duct Cleaning in Sienna - One Flat Price, Before-and-After Photos

Fast, Reliable Air Duct Cleaning Across Sienna

Air duct cleaning in Sienna, TX typically runs $350 – $650 for a full residential system, and most jobs are scheduled within a few days of your call. We’re familiar with the master-planned communities along Sienna Parkway, from the older sections near Camp Sienna Road to the newer builds in Sawmill Lake and Avalon. Our crews serve Sienna from our Dallas-Fort Worth dispatch office, and we know the local building patterns: post-2000 construction, tight envelopes, flex ducts in 140°F attics. That matters because the problems here aren’t the same as in Houston’s older neighborhoods or Dallas’s pre-war stock. If your AC smells musty when it cycles, or you’ve noticed dust blowing from registers in a house built after 2005, the issue is probably in the attic run near your air handler. Call (361) 326-5060 for a free estimate and we’ll show you exactly what we find.

Call (361) 326-5060

Why Hollis Air Duct Cleaning Is Sienna’s Preferred Air Duct Cleaning Company

We’ve been in business since 2004 as part of the Garrison Partners family, and our Air Duct Cleaning in Sienna work follows The Garrison Standard: arrive inside the window, price in writing before we touch anything, finish by the book, leave the site clean. That standard exists because we’ve seen what homeowners in Sienna deal with – crews who show up late, prices that jump once the van is in the driveway, and “cleaning” that amounts to a quick vacuum at the registers.

Our technicians are background-checked and uniformed. You know who’s walking into your home before they arrive. Every job gets a written price before work starts, and that number does not move at the door. Our 365-Day Done Right Promise covers every repair for a full year – if the work fails, we come back and make it right at no charge, including a free second visit.

Phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops. No callback queues. No waiting until Monday to schedule.

We understand Sienna’s specific conditions: the HOA screening requirements for attic vents and outdoor equipment, the flood-zone history from Hurricane Harvey, and the reality that a 2015 house here can have worse microbial growth in its ducts than a 1980 house in drier parts of Texas. That local knowledge changes how we approach the job.

Air Duct Cleaning Services in Sienna

Air Duct Cleaning Services in Sienna focus on source removal from the complete duct network – supply runs, return runs, registers, grilles, and the plenum connections – using rotary brush agitation and negative-air HEPA collection. In Sienna’s housing stock, nearly all homes were built after 2000 with flex duct in unconditioned attics, so the work emphasizes removing construction debris, mold spores, and accumulated dust from young but tightly sealed systems rather than replacing corroded old metal. A typical residential full-system cleaning in Sienna runs $350 – $650 depending on system size and accessibility. Homes in Sawmill Lake or the newer Avalon sections often have longer duct runs and multiple zones, which can push toward the higher end.

Residential Duct Cleaning

We clean the full supply and return network from the air handler to every register, including the main trunk lines and branch ducts. For Sienna’s two-story brick-and-stone homes, this means accessing attic flex runs that may have settled or compressed against hot roof decking, then restoring proper support and insulation where needed.

Video Inspection

Before and after camera documentation shows you the interior condition of your ducts. In Sienna, we regularly find that “clean-looking” white flex duct near the air handler is actually coated with a thin biofilm that only close inspection reveals. The video becomes part of your record and ours.

HVAC Duct Cleaning in Sienna

HVAC Duct Cleaning in Sienna includes the complete mechanical system – not just the ducts but the air handler cabinet, blower motor, evaporator coil, and plenum – because in this climate the wet components are where mold and biological growth actually establish. Sienna’s 70°F+ summer dew points and 140°F attic temperatures create condensation on cold duct surfaces near the air handler that you rarely see in drier inland subdivisions. A typical HVAC duct cleaning with full mechanical component service in Sienna runs $450 – $850. The price depends on whether the evaporator coil needs separate access and cleaning, and whether the blower assembly requires removal for proper service.

Air Handler and Blower Service

We pull and clean the blower wheel, inspect the evaporator coil, and treat the condensate pan and drain. In Sienna’s year-round AC climate, this is where the real problem lives. A ducts-only sweep that skips the air handler leaves the source of contamination circulating through your “cleaned” system.

Post-Flood Decontamination

Hurricane Harvey inundated parts of Sienna in 2017, and flood-zone duct contamination remains a recurring local need. We handle HVAC decontamination with source removal, antimicrobial treatment of accessible non-porous surfaces, and documentation for insurance where required. This is different from routine maintenance cleaning and is priced separately based on scope.

Trusted Brands We Service in Sienna

Our equipment roster includes Rotobrush rotary brush systems for mechanical agitation inside duct runs, Nikro negative-air machines for controlled debris collection, and filtration products from Aprilaire, Abatement Technologies, and Guardsman. We stock common replacement media and sealing supplies for Sienna customers, so if your system needs a filter upgrade or duct sealing mastic applied after cleaning, we can complete it in the same visit rather than ordering parts and rescheduling. The rotary brush system physically scrubs the duct interior while the negative-air machine maintains suction – that’s source removal, not surface coating. For homeowners in Sienna’s master-planned sections where HOA architectural standards restrict visible equipment modifications, we select filtration upgrades that fit existing return-air compartments without external changes.

Common Air Duct Cleaning Problems We See in Sienna Homes

• Mold in attic flex ducts near the air handler. Sienna’s combination of 70°F+ dew points and 140°F attics creates condensation on cold duct surfaces that newer inland Texas subdivisions simply don’t experience. We regularly find mottled microbial growth within six feet of the air handler, right where the flex run passes through the hottest part of the attic.
• Construction debris in “new” homes. Constant remodeling and new construction throughout the community loads supply and return ducts with drywall dust and sawdust. A 2015 house can have significant accumulation if the original build cleanup was rushed or if subsequent renovation work ran without proper isolation.
• Fogging upsells that don’t remove anything. Some outfits mist a “sanitizing” chemical into the ducts and call it cleaned. In Sienna’s already condensation-prone systems, this wets the interior, kills nothing at the source, and leaves the mold’s food supply intact. Source removal requires physical agitation and negative-air collection.
• Skipped air handler service. Because Sienna homes run AC most of the year, the wet coil and blower cabinet become the primary colonization points. Cleaning only the ducts while ignoring the mechanical components leaves the root cause untouched and the problem returns within weeks.

Pricing for Air Duct Cleaning in Sienna, TX

We Also Serve Cities Near Sienna

Our Air Duct Cleaning crews also work in Houston, San Antonio, Dallas, and Fort Worth. Each market has different housing stock and climate conditions, so our approach adjusts accordingly – but The Garrison Standard stays the same: written price, written guarantee, background-checked uniformed technicians, and the 365-Day Done Right Promise on every job.

FAQs About Air Duct Cleaning in Sienna