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.
Air Duct Cleaning in Terrell Hills, TX
HVAC cleaning in Terrell Hills typically runs $380-$620 for a complete system, with most jobs scheduled within a week because this is planned maintenance, not an emergency call. The 1940s-1960s brick homes that define this 1.5-square-mile enclave were built with complex multi-zone duct layouts and original galvanized steel plenums that accumulate debris differently than modern flex-duct systems. Call (726) 600-7155 for a free estimate.
Why Terrell Hills Homes Are Different
Terrell Hills sits entirely inside San Antonio’s boundaries, but its housing stock belongs to a different era. The roughly 1,700 residences here are predominantly large, architect-designed brick homes built between the 1940s and 1960s, not the post-1980s tract construction common in outer San Antonio. These older, custom floor plans include complex multi-zone duct layouts, original galvanized steel plenums, and early flexible duct materials that crack and shed debris after decades of thermal cycling in attics that routinely exceed 140°F.
San Antonio’s mountain cedar pollen season, peaking December through February and ranked among the most severe allergenic events in the U.S., drives heavy fine-particulate infiltration through aging duct seams. Technicians working in Terrell Hills frequently discover original 1950s-1960s galvanized steel ductwork with intact cardboard-based duct liner, a material known to harbor mold and biological growth, because homes have passed through long-term family ownership or rapid military-family turnover from nearby JBSA-Fort Sam Houston without ever triggering a full HVAC inspection.
Our Main Terrell Hills Services
Terrell Hills homeowners call us most often for these three services, each with its own dedicated page.
Air Duct Cleaning in Terrell Hills
Our crews photograph every duct run before and after work, documenting the condition of original galvanized steel and early flex duct common in Terrell Hills’s 1940s-1960s homes. Military families inheriting these systems often face multi-decade debris accumulation with zero cleaning history. Air Duct Cleaning in Terrell Hills covers the full scope, from register to plenum.

Dryer Vent Cleaning in Terrell Hills
Dryer vent blockages in older Terrell Hills homes often involve extended runs through masonry walls or multiple elbows installed when the house was built. We clear the full run and photograph the discharge point to confirm flow. Dryer Vent Cleaning in Terrell Hills addresses the fire risk specific to these aging installations.

Duct Repair & Sealing in Terrell Hills
Original sheet-metal plenums and early-generation flex duct in Terrell Hills crack and separate after decades of thermal cycling. We seal leaks with mastic and replace deteriorated sections, documenting every repair with before-and-after photos. Duct Repair & Sealing in Terrell Hills covers the structural fixes these systems need.

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.
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AfterHVAC Cleaning in Terrell Hills

HVAC cleaning in Terrell Hills means working inside systems that have rarely, if ever, been professionally serviced. The original galvanized steel plenums and multi-zone layouts in these 1940s-1960s homes collect debris at elbows and transitions that newer systems simply don’t have, while summer attic heat accelerates flex duct liner breakdown that deposits fibers directly into the air stream. HVAC Cleaning from CleanRun addresses each component with documented photo records on every visit.
Evaporator Coil Cleaning
Signs you need it
Ice buildup on refrigerant lines, weak airflow from registers, or musty odors when the AC cycles on in Terrell Hills’s humid summer months.
What it costs in Terrell Hills
Evaporator coil cleaning typically runs $180-$340 as a standalone service, or included in a complete HVAC cleaning package.
How we do it
We access the coil through the plenum, apply foaming cleaner, rinse with low-pressure water, and photograph the fins before and after to document airflow restoration.
Blower Cleaning
Signs you need it
Vibration noise from the air handler, uneven heating or cooling across zones, or dust puffing from registers when the system starts.
What it costs in Terrell Hills
Blower cleaning typically runs $140-$260 as a standalone service, or bundled into a complete system cleaning.
How we do it
We remove the blower assembly, clean the squirrel cage and housing with compressed air and solvent, balance the fan, and photograph the assembly before reinstallation.
What HVAC Cleaning Costs in Terrell Hills
| Item | Typical range in Terrell Hills |
|---|---|
| Complete HVAC cleaning (coil, blower, condenser, air handler) | $380-$620 |
| Evaporator coil cleaning only | $180-$340 |
| Blower cleaning only | $140-$260 |
How do I know the HVAC cleaning was actually done?
Every duct run and component is photographed before and after, delivered as part of your standard job record. You’ll see the debris on the coil and the clean fins, not just a verbal report.
Why does my Terrell Hills home need HVAC cleaning more often than newer construction?
Original galvanized steel plenums and cardboard-based duct liner in 1940s-1960s homes trap debris that modern flex-duct systems shed or filter out. Call (726) 600-7155 for an exact quote - estimates are free.
Air Quality & Sanitizing in Terrell Hills

Air quality and sanitizing in Terrell Hills addresses a specific problem: original 1950s-1960s ductwork with cardboard-based liner that harbors mold and biological growth, combined with mountain cedar pollen infiltration through aging seams and military-family turnover that leaves systems unserviced for decades. Air Quality & Sanitizing from CleanRun treats the biological load these older systems accumulate, with every job documented in writing and photography.
Mold Treatment
Signs you need it
Musty odors when the HVAC cycles, visible discoloration on registers or in the plenum, or respiratory symptoms that worsen when you’re home in Terrell Hills’s humid summer months.
What it costs in Terrell Hills
Mold treatment typically runs $280-$480 depending on the extent of contamination and accessibility of affected duct runs.
How we do it
We apply EPA-registered antimicrobial through the duct system using a fogging device, treat the plenum and accessible liner directly, and photograph all treated areas for your record.
UV Light Installation
Signs you need it
Recurring mold or biological growth after cleaning, chronic musty odors, or family members with allergy symptoms that persist despite filter upgrades.
What it costs in Terrell Hills
< UV light installation typically runs $320-$580 including the lamp, housing, and electrical connection to the air handler.
How we do it
We mount a UV-C lamp in the supply plenum, wire it to the air handler’s 24-volt circuit so it cycles with the blower, and photograph the installation for your job record.
What Air Quality & Sanitizing Costs in Terrell Hills
| Item | Typical range in Terrell Hills |
|---|---|
| Mold treatment (whole system) | $280-$480 |
| UV light installation | $320-$580 |
| Bacteria sanitizing (whole system) | $220-$380 |
Does UV light actually work in older Terrell Hills ductwork?
UV-C lamps kill airborne mold spores and bacteria at the coil and plenum where they reproduce, but they don’t clean existing debris - we treat first, then install to prevent recurrence.
How often should air quality treatment be repeated?
Sanitizing lasts 1-3 years depending on humidity and duct condition; UV lamps need annual bulb replacement. Call (726) 600-7155 for an exact quote - estimates are free.
Brands We Service in Terrell Hills
We stock parts and service equipment from Aprilaire, Abatement Technologies, and Guardsman, with Rotobrush cleaning systems on every truck. Most replacement components are available same-day for Terrell Hills appointments. See our brands for the full roster.
Pricing for Air Duct Cleaning in Terrell Hills, TX

| Service | Typical range in Terrell Hills |
|---|---|
| Complete HVAC cleaning | $380-$620 |
| Evaporator coil cleaning | $180-$340 |
| Blower cleaning | $140-$260 |
| Condenser cleaning | $120-$220 |
| Air handler cleaning | $160-$280 |
| Heat exchanger cleaning | $200-$360 |
| Mold treatment | $280-$480 |
| Bacteria sanitizing | $220-$380 |
| Odor removal | $180-$320 |
| UV light installation | $320-$580 |
| Air purifier install | $400-$750 |
| Dryer vent cleaning | $120-$220 |
Prices increase in Terrell Hills when we encounter original 1950s-1960s ductwork with cardboard-based liner requiring careful handling, or when attic access is limited by complex multi-zone layouts. Every job starts with a written price before any work begins - Haven Standard Clause 1 - so the figure you approve is the figure you pay.
Neighborhoods We Serve in Terrell Hills
We schedule Terrell Hills appointments with travel time built in; crews typically arrive within the stated window regardless of which neighborhood. The entire city is roughly 1.5 square miles, so response logistics are straightforward.
- Terrell Hills Estates
- Old Terrell Hills
- Northridge
- Morningside
- East Terrell Hills
Service Area - Cities Near Terrell Hills

Our San Antonio office dispatches crews throughout the metro area. We regularly serve San Antonio, TX, which surrounds Terrell Hills entirely, plus Alamo Heights, TX to the north, Castle Hills, TX to the northwest, and Leon Valley, TX to the west. Scheduling is coordinated from our metro office for all locations.
Serving Terrell Hills, TX - Our Local Coverage Area
We’re based in the Terrell Hills 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 Terrell Hills

Do I need a permit for duct cleaning or repair in Terrell Hills?
No permit is required for cleaning or sealing existing ductwork in Terrell Hills; only structural modifications or new HVAC installations trigger permitting through the City of San Antonio, which provides municipal services to the enclave.
How quickly can you schedule service in Terrell Hills?
Most Terrell Hills appointments are scheduled within 3-5 business days; we don’t claim same-day service because duct cleaning is planned maintenance, not an emergency response. Call (726) 600-7155 to check current availability.
Do you work with Terrell Hills HOAs?
We’ve completed jobs in multiple Terrell Hills neighborhoods with HOA notification requirements; we provide written scope and insurance documentation on request, and our crews arrive in marked vehicles with uniformed, background-checked technicians per Haven Standard Clause 3: Verified Crews.
Frequently Asked Questions
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 Terrell Hills Customers Say
"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."Flat price agreed up front, no per-vent add-ons at the end. That was the whole reason I did not call the coupon company."
- Suzanne B."The dryer vent was almost completely blocked with lint. They showed me the photograph and I understood immediately why the dryer had been running twice."
- Lucia M.




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