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.
Before
After
Before
After
Before
AfterAir Duct Cleaning in Seguin, TX
HVAC cleaning in Seguin typically runs $320-$580 for a full system, and every job starts with a written price before we touch a single panel. We’re CleanRun, and we serve Seguin from our San Antonio office with background-checked crews who photograph every duct run before and after. Call (830) 549-6847 for a free estimate.
Seguin’s location at the eastern edge of the mountain cedar belt means return-air systems here collect some of the heaviest pollen loads in Texas each winter. That same cedar dust, combined with Gulf humidity funneled up the Guadalupe River corridor, creates a specific contamination pattern: light, airborne debris that settles deep in evaporator coils and blower housings, then traps moisture long enough to support mold. Homes built between 1960 and 1990 - a large share of Seguin’s stock - often have original duct systems that have never been professionally cleaned, and the 1970s tract homes on the east side frequently run flex duct through unconditioned crawl spaces where humidity intrusion is constant.
Why Seguin Homes Are Different
The Guadalupe River bends through Seguin, and low-lying neighborhoods along those curves experience periodic flooding that forces moisture into subfloor duct cavities and air handler closets. This is a contamination pathway that higher-ground cities like Cibolo or Schertz don’t face at the same rate. After a flood event, we regularly find mold colonization hidden behind ordinary dust accumulation in homes that owners believed were “just dusty.”
Meanwhile, commuter growth from the Austin-San Antonio corridor is pushing newcomers into 1970s-1990s homes with original duct systems. These buyers often research every service category before calling, and they’ve seen the $79 coupon ads. They want documented evidence, not promises. Seguin’s pre-WWII downtown homes present their own challenge: early forced-air conversions with oversized metal plenums and deteriorating fiberglass liner that sheds particles into the airstream. Each era of housing stock here demands a different inspection approach, and our crews know which questions to ask before arriving.
Our Main Seguin Services
Seguin homeowners call us most often for these three services, each with its own dedicated page.
Air Duct Cleaning in Seguin
We clean the full duct network - supply and return runs, trunk lines, and registers - using negative-pressure extraction (a sealed vacuum that pulls debris out without releasing it into the home). In Seguin, we pay special attention to pier-and-beam crawl spaces where Gulf humidity degrades flex duct insulation. Every run is photographed before and after. Air Duct Cleaning in Seguin covers our full process and pricing.
Dryer Vent Cleaning in Seguin
Lint accumulation in dryer vents is a fire hazard, and Seguin’s older homes often have longer vent runs through unconditioned spaces where condensation packs lint into solid blockages. We clear the full line from appliance to termination, then verify airflow with a meter. Dryer Vent Cleaning in Seguin details what’s included.
Duct Repair & Sealing in Seguin
Flood-moisture intrusion in river-adjacent neighborhoods collapses flex duct and corrodes metal seams. We replace damaged sections and seal leaks with mastic, not tape, then pressure-test the system. Duct Repair & Sealing in Seguin explains our repair scope and the 365-Day Done Right Promise.
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.
BeforeAfterHVAC Cleaning in Seguin
Full HVAC cleaning in Seguin addresses the components air moves through after it leaves the ductwork: the evaporator coil, blower assembly, condenser, and air handler. In this market, cedar pollen and river-corridor humidity create a specific failure pattern - coils clogged with fine debris that holds moisture, blower wheels coated in a paste of dust and organic matter, and condensate pans supporting bacterial growth. We document each component with before-and-after photos as part of our standard deliverable. Our HVAC Cleaning hub explains equipment and methods in detail.
Evaporator Coil Cleaning
Signs you need it
Ice forming on the coil, weak airflow from registers, or a musty smell when the AC first cycles on.
What it costs in Seguin
Evaporator coil cleaning typically runs $180-$320.
How we do it
We remove the access panel, apply foaming cleaner formulated for aluminum fins, then rinse with low-pressure water and photograph the coil surface before reassembly.
Blower Cleaning
Signs you need it
Vibration or noise from the air handler, uneven heating or cooling across rooms, or dust puffing from registers at startup.
What it costs in Seguin
Blower assembly cleaning typically runs $150-$280.
How we do it
We extract the blower wheel, clean blades and housing with compressed air and solvent, balance the assembly, and record amp draw before reinstalling.
What HVAC Cleaning Costs in Seguin
| Item | Typical range in Seguin |
|---|---|
| Evaporator coil cleaning | $180-$320 |
| Blower assembly cleaning | $150-$280 |
| Condenser cleaning | $120-$220 |
| Full system HVAC cleaning | $320-$580 |
How do I know my HVAC components are actually dirty?
We photograph every component before touching it, and you review the images before approving work. Haven Standard Clause 1 requires written price and documented condition before any cleaning begins.
Can HVAC cleaning fix uneven temperatures in my Seguin home?
Yes, if the cause is a clogged coil or debris-imbalanced blower; we measure airflow at each register before and after to verify improvement. Call (830) 549-6847 for an assessment.
Air Quality & Sanitizing in Seguin
Air quality and sanitizing in Seguin targets the biological load that cedar pollen and river-humidity create inside duct systems. Mold treatment and bacteria sanitizing are not add-on sales here; they’re specific responses to documented contamination we find during inspection. Our crews use Nikro and Abatement Technologies equipment, and every treatment is photographed before and after. The Air Quality & Sanitizing hub lists our full equipment roster and treatment protocols.
Mold Treatment
Signs you need it
Musty odor when the system runs, visible discoloration on registers or duct liner, or recent flooding in river-adjacent neighborhoods.
What it costs in Seguin
Mold treatment typically runs $280-$520 depending on colony extent and duct accessibility.
How we do it
We apply EPA-registered antimicrobial through the full duct network, treat the air handler and plenum, then collect post-treatment samples for documentation.
UV Light Installation
Signs you need it
Recurring mold despite cleaning, chronic allergy symptoms in household members, or a system in a dark, humid crawl space.
What it costs in Seguin
UV light installation typically runs $340-$580 including the lamp and mounting hardware.
How we do it
We mount a Honeywell or Aprilaire UV-C lamp in the supply plenum, wire it to the blower circuit, and show you the installation point in your photo record.
What Air Quality & Sanitizing Costs in Seguin
| Item | Typical range in Seguin |
|---|---|
| Mold treatment | $280-$520 |
| Bacteria sanitizing | $220-$380 |
| UV light installation | $340-$580 |
Is mold treatment necessary if I can’t see mold?
We inspect with a borescope camera first; if we don’t document mold, we don’t quote treatment. Haven Standard Clause 1 prohibits selling unneeded services.
Will UV lights eliminate all my allergy symptoms?
UV-C lamps kill mold and bacteria on the coil and in the plenum; they don’t filter pollen or dust, so results depend on your specific trigger. Call (830) 549-6847 and we’ll assess whether UV makes sense for your system.
Brands We Service in Seguin
We stock parts and service equipment from Honeywell, Aprilaire, Nikro, and Abatement Technologies, with most common filters, UV lamps, and sanitizing agents carried on every truck. Turnaround on ordered parts is typically two business days from our San Antonio office.
Pricing for Air Duct Cleaning in Seguin, TX
| Service | Typical range in Seguin |
|---|---|
| Standard air duct cleaning (whole system) | $280-$480 |
| Deep cleaning with register removal | $340-$560 |
| Evaporator coil cleaning | $180-$320 |
| Blower assembly cleaning | $150-$280 |
| Condenser cleaning | $120-$220 |
| Full HVAC cleaning | $320-$580 |
| Mold treatment | $280-$520 |
| Bacteria sanitizing | $220-$380 |
| UV light installation | $340-$580 |
| Dryer vent cleaning | $120-$220 |
Prices increase in Seguin when systems haven’t been cleaned in 10+ years, when ductwork runs through flooded or inaccessible crawl spaces, or when multiple components require simultaneous treatment. Every quote is written and agreed before work starts - no per-vent pricing, no post-arrival add-ons.
Neighborhoods We Serve in Seguin
We schedule Seguin appointments with a single dispatch window, typically morning or afternoon, and crews carry equipment for both duct cleaning and air quality treatment on every truck.
- River Bend / north side river-adjacent areas
- Downtown Seguin historic district
- Weinert Estates
- Elm Creek
- Oak Creek Country and newer commuter subdivisions
Service Area - Cities Near Seguin
CleanRun crews based in San Antonio serve the full corridor between Austin and San Antonio, including New Braunfels, TX, Cibolo, TX, Schertz, TX, and Universal City, TX. Each city page documents the specific housing stock and contamination patterns our technicians encounter there.
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
No permit is required for residential duct cleaning or HVAC component cleaning in Seguin; permits apply only to duct replacement or structural modifications, which we handle separately if needed.
We typically book within 3-5 business days, with emergency mold assessments available sooner for post-flood situations. Call (830) 549-6847 for current availability.
We work in every Seguin neighborhood including gated and HOA-managed communities; our technicians carry identification and background verification under Haven Standard Clause 3.
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 Seguin Customers Say
"They found a disconnected duct in the crawl space that had been dumping conditioned air under the house for years. Photographed it, quoted the repair, fixed it."
- Devon A."On time, professional, and explained what the readings meant without talking down to me."
- Warren E."The before and after photographs of each run are the reason I used them. You cannot argue with what came out of the return."
- Marguerite O.