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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AfterFast, Reliable Air Duct Cleaning Across Seguin
Air duct cleaning in Seguin typically runs $350 – $650 for a full residential system, and most jobs are scheduled within a few business days with a written price locked in before any work starts. If your home is one of the newer builds off Highway 123, there’s a strong chance the ducts were never cleaned after construction, and that drywall dust has been circulating through your vents since move-in day.
We’re Hollis Air Duct Cleaning, part of the Garrison Partners family, and our Air Duct Cleaning crews serve Seguin from our San Antonio dispatch office. We’ve worked in the historic bungalows near the Guadalupe County Courthouse square, the ranch homes in Highland Park and Woodlake, and the tight-built subdivisions going up on Seguin’s west side. Roy Castellanos leads our operation, and every technician who enters your home is background-checked, uniformed, and held to The Garrison Standard: arrive inside the window, price in writing, complete the job by the book, and leave the site clean. Call us at (361) 326-5060 for a free estimate.
Why Hollis Air Duct Cleaning Is Seguin’s Preferred Air Duct Cleaning Company
We’ve been in business since 2004, and our 365-Day Done Right Promise means if the work fails within a year, we come back and make it right at no charge, including a free second visit. That promise is backed in writing on every job, not something we negotiate after the fact.
Our 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 price every job in writing before touching equipment. The number you agree to is the number on the invoice. No per-vent add-ons, no surprise charges once the van is in your driveway.
Our crews carry professional-grade equipment: Rotobrush rotary brush systems for mechanical agitation, Nikro negative-air machines for controlled debris removal, and filtration products from Honeywell, Aprilaire, Abatement Technologies, and Guardsman. These are the same tools commercial crews use, not hardware-store gear.
Air Duct Inspection in Seguin
Air Duct Inspection in Seguin is the first step we recommend for any homeowner who suspects their ducts are circulating dust, debris, or microbial growth. The inspection involves running a high-resolution camera through the supply and return trunks, checking the air handler plenum for buildup, and documenting any sagging ductwork, unsealed joints, or construction debris left from the build. In Seguin, this service typically costs $150 – $250 as a standalone visit, or it is included at no charge when bundled with a full cleaning. Homes in the historic neighborhoods near the Guadalupe River often reveal 1950s-era fiberboard ductwork that has sagged from decades of humidity, while newer west-side homes frequently show drywall dust and sanding residue still caked to the duct walls from construction.
What the Camera Reveals
Our video inspection records the interior condition of your duct system in real time. You’ll see exactly what we see: the thickness of dust coating, any standing debris in low spots, and whether the builder cleaned the ducts before handover. In Seguin’s newer subdivisions, we regularly find construction residue that should have been removed years ago.
When to Schedule
Book an inspection if you’ve noticed dust puffing from registers, uneven airflow between rooms, or musty odors when the system cycles. In Seguin’s humid subtropical climate, with HVAC running 8 – 10 months annually, these symptoms rarely resolve on their own.
Residential Air Duct Cleaning in Seguin
Residential Air Duct Cleaning in Seguin removes accumulated debris from the entire forced-air system, including supply ducts, return ducts, the air handler plenum, and accessible register boots. We use a combination of negative-air extraction and mechanical agitation, typically with our Rotobrush system, to dislodge and capture debris without releasing it into your living space. For a typical Seguin home, residential duct cleaning runs $350 – $650 depending on system size, accessibility, and contamination level. Older homes near the courthouse square may need additional attention for galvanized supply trunks or unsealed flex-duct joints, while newer west-side homes often require focused construction debris removal.
The Negative-Air Method
We connect a Nikro negative-air machine to your duct system, creating suction that pulls dislodged debris through HEPA filtration and out of your home entirely. This controlled extraction prevents the dust storm that cheaper methods can create. The air pressure differential is monitored throughout the job to ensure complete capture.
Post-Construction Cleaning
For Seguin’s newer homes, we perform targeted agitation of the main supply trunk and return plenum where drywall dust and sanding residue concentrate. A family in a two-year-old home off Highway 123 called us because every register was puffing white powder when the system kicked on. Our tech found a thick coating of drywall dust caked to the duct walls, plus construction debris sitting in the return plenum. We set up negative pressure with HEPA filtration, worked the whole system with agitation tools, and pulled out several pounds of builder leftovers that should have been removed before move-in.
Trusted Brands We Service in Seguin
We carry professional-grade equipment and filtration products from Rotobrush, Nikro, Honeywell, Aprilaire, Abatement Technologies, and Guardsman. For Seguin homeowners, this means we stock the parts and media your system actually uses, not generic substitutes ordered after the fact. If your home has a Honeywell electronic air cleaner or an Aprilaire media filter, we have the correct replacement sizing on the truck. Our Abatement Technologies HEPA filtration rigs are the same units deployed in commercial remediation jobs, so the negative-air setup in your laundry room meets a higher standard than the shop-vac methods some competitors still use. Fast turnaround matters in Seguin’s long cooling season, and keeping the right equipment in stock lets us complete most residential jobs in a single visit.
Common Air Duct Cleaning Problems We See in Seguin Homes
- Construction debris in new west-side homes. Seguin’s subdivisions along Highway 123 are full of homes under a decade old where the ducts were never cleaned after construction. Drywall dust, sawdust, and sanding residue have been recirculating through the supply and return ducts since the first time the air handler ran. Because these tight-built homes run HVAC 8 – 10 months a year in Seguin’s humid subtropical climate, that debris becomes a year-round indoor air problem.
- Sagging fiberboard ductwork in historic neighborhoods. In the older neighborhoods near the Guadalupe River, technicians frequently find that 1950s-era fiberboard ductwork under pier-and-beam floors has sagged from decades of humidity, creating low spots where debris and moisture collect and mold blooms. This condition is almost never seen in Seguin’s newer slab-on-grade west-side homes.
- Pollen and pecan aphid honeydew overload. Seguin’s historic central neighborhoods were built on a grid of pecan orchards and cotton fields, and homes there still draw pollen and pecan aphid honeydew through HVAC returns at levels that would be unrecognizable in nearby San Antonio or New Braunfels. The spring pecan and oak pollen season from February through April is the primary trigger for duct cleaning calls in these areas.
- Unsealed joints in older ranch homes. The 1970s – 1990s single-story ranch homes in Highland Park and Woodlake often have early flex duct with multiple unsealed joints that trap debris and leak conditioned air into attics or crawl spaces. Cleaning alone won’t fix the leakage, but it removes the accumulated contamination so subsequent sealing work can proceed effectively.
Pricing for Air Duct Cleaning in Seguin, TX
A typical full-system residential duct cleaning in Seguin runs $350 – $650, with most single-family homes in the $400 – $550 range. Here’s how that breaks down:
| Service | Price Range in Seguin |
|---|---|
| Air Duct Inspection (standalone) | $150 – $250 |
| Residential Full System Cleaning | $350 – $650 |
| Dryer Vent Cleaning (add-on) | $125 – $200 |
| Duct Sealing (per system, after cleaning) | $400 – $800 |
What moves the price: system size (number of supply and return ducts), accessibility (crawl space vs. attic vs. slab-on-grade), contamination level (routine maintenance vs. heavy construction debris or mold), and whether the home has multiple HVAC zones. We do not quote per-vent prices. One flat price per system, agreed in writing before work starts. Call (361) 326-5060 for an exact quote; estimates are free.
We Also Serve Cities Near Seguin
Our Air Duct Cleaning in Seguin crews also travel to New Braunfels, Cibolo, Schertz, and Universal City. Scheduling is coordinated from our San Antonio dispatch office, and we route appointments to minimize drive time and keep our arrival windows reliable for homeowners throughout the region.
Serving Seguin, TX - Our Local Coverage Area
We’re based in the Seguin 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 in Seguin
Yes, if the builder did not perform a post-construction duct cleaning, which most do not. In Seguin’s west-side subdivisions along Highway 123, we regularly find drywall dust, sawdust, and sanding residue still coating the supply trunks and return plenums of homes under five years old. That debris gets pushed into your living space every time the air handler cycles. Call (361) 326-5060 for an inspection; we’ll show you exactly what’s in there before you decide.
Your builder should have performed a source-removal cleaning of the entire duct system after all drywall sanding, flooring installation, and trim work was complete, then protected the registers with sealed covers until final walkthrough. Most Seguin builders skip this step or rely on the HVAC contractor’s rough clean, which does not address the fine particulate that settles in ductwork during finishing trades. The Garrison Standard requires us to document what we find and explain what should have been done, so you have a record.
New west-side homes need targeted removal of construction debris from tight, well-sealed duct systems where dust has no escape path. Older homes near the courthouse square often have galvanized supply trunks, unsealed flex-duct joints, and sagging fiberboard runs that require gentler agitation and more time spent on access and repair assessment. The equipment is the same; the technique and sequence differ based on what the camera reveals. Call (361) 326-5060 and we’ll tailor the approach to your home’s age and construction.
Every 3 – 5 years for routine maintenance, or sooner if you have pets, allergies, or visible dust emission from registers. In Seguin’s humid subtropical climate with 8 – 10 months of annual HVAC runtime, ducts accumulate debris faster than in drier Texas cities. Homes in the historic pecan orchard neighborhoods may need more frequent attention during the February – April pollen season. Call (361) 326-5060 to discuss your specific situation and we’ll recommend an appropriate interval.
It will help significantly if the dust is originating from debris inside your duct system, which is common in Seguin’s newer homes with leftover construction dust. If the dust is entering from other sources, poor filtration, or duct leakage, cleaning removes the reservoir but won’t stop new infiltration. We always perform a video inspection first to determine whether duct cleaning is the right solution or whether sealing and filtration upgrades should accompany it. Call (361) 326-5060 for an honest assessment.
Ready to see what’s inside your ducts? Call Hollis Air Duct Cleaning at (361) 326-5060 for a free estimate. We’ll send a background-checked, uniformed technician to your Seguin home, inspect the system with a camera, and give you a written price before any work begins. Every job is covered by our 365-Day Done Right Promise: if it’s not done right, we make it right, backed in writing.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Seguin and the surrounding communities.