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 Company in Terrell Hills, TX
Air duct cleaning in Terrell Hills typically runs $350 – $650 for a whole-home system, with most jobs completed in one visit. We’re Hollis Air Duct Cleaning, and we’ve learned that homes here aren’t like the rest of Bexar County. Terrell Hills is its own city with its own building inspection department, surrounded entirely by San Antonio, and the housing stock is dominated by large, custom-built mid-century ranches with duct networks that were never designed for modern filtration standards. Call (361) 326-5060 for a free estimate.
Why Terrell Hills Homes Are Different
Terrell Hills operates its own permitting and code enforcement, completely separate from San Antonio or Bexar County. That means any duct modification, sealing work, or HVAC-related project that might be routine elsewhere can trigger a local code review. We’ve coordinated with the city’s building office enough to know the process, and we build that time into our scheduling.
The housing stock here is distinctive: mid-century to late-20th-century custom ranch-style and two-story homes on generous lots, many with full attics and original ductwork. Flexible duct runs, leaking seams, and poorly sealed returns are common. These systems weren’t built for the pollen loads and near-constant cooling demand that South Texas imposes.
The climate is relentless. HVAC systems run almost year-round, pushing dust, pollen, and humidity through ductwork continuously. High humidity creates condensation inside unsealed ducts, and biological growth follows. We’ve pulled buildup from Terrell Hills systems that hasn’t seen a brush in thirty years. The city’s strict tree-preservation rules also mean many attics and exterior duct chases stay shaded, so they dry slower after cleaning. That affects how we schedule and ventilate the work.
Our Main Terrell Hills Services
Most Terrell Hills homeowners call us for one of three jobs. Each has its own page with full details.
Air Duct Cleaning in Terrell Hills
We clean the full supply and return network with a Rotobrush rotary brush system and negative-air extraction. In Terrell Hills, that often means navigating attics with original flexible ductwork from the 1960s or 1970s, working carefully around aging insulation and tight chase ways. We photograph the before condition and the after, so you see what came out. Air Duct Cleaning in Terrell Hills

Dryer Vent Cleaning in Terrell Hills
Dryer vent cleaning here runs into two common issues: long vent runs through exterior walls (common in ranch-style layouts) and lint accumulation in partially crushed or sagging flexible transition ducts. We clear the full run from dryer to termination, check airflow with a meter, and flag any fire-safety issues. Dryer Vent Cleaning in Terrell Hills

Duct Sealing in Terrell Hills
Many Terrell Hills homes lose 20 – 30% of conditioned air through leaks in the attic or crawl space. We seal accessible seams and connections with mastic and metal-backed tape, then verify with a pressure test. Because Terrell Hills has its own inspection department, we coordinate any required permits directly. Duct Sealing in Terrell Hills

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.
Brands We Service in Terrell Hills
We carry parts and filtration products from Honeywell, Aprilaire, Abatement Technologies, and Guardsman. Our crews run Rotobrush rotary systems and Nikro negative-air machines. Most filter replacements and component swaps are same-visit. our brands
Pricing for Air Duct Cleaning Company in Terrell Hills, TX
| Service | Typical range in Terrell Hills |
|---|---|
| Whole-home air duct cleaning (single system) | $350 – $650 |
| Whole-home air duct cleaning (two systems) | $550 – $950 |
| Dryer vent cleaning | $120 – $220 |
| Duct sealing (per system, accessible ductwork) | $450 – $850 |
| Register and grille deep cleaning | $15 – $25 each |
| Sanitizing treatment (per system) | $75 – $150 |
| Return plenum cleaning | $80 – $150 |
| Main trunk line cleaning (additional) | $100 – $200 |
What pushes price up in Terrell Hills: multiple HVAC zones, extensive flexible ductwork that requires hand brushing, and homes where the attic access is limited or the duct network spans unusually long distances. What doesn’t change the price: we give you one flat price per system, written down, before any work starts. No per-vent add-ons, no surprises at the door.
Neighborhoods We Serve in Terrell Hills
We work across the full city limits. Crews dispatch from our San Antonio coordination office and typically arrive within the quoted window anywhere in Terrell Hills.
- Old Terrell Hills
- Terrell Hills Estates
- Ridgemont
- North Terrell Hills
- Westover Hills adjacencies
Service Area – Cities Near Terrell Hills
We also serve homeowners in Houston, TX, San Antonio, FL, Dallas, GA, and Fort Worth, TX. Scheduling and dispatch for Terrell Hills are coordinated from our San Antonio office.
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 Company in Terrell Hills
Standard air duct cleaning does not require a permit in Terrell Hills. Duct sealing or any modification to the HVAC distribution system may trigger the city’s building inspection review, which we handle directly. Call (361) 326-5060 and we’ll confirm whether your specific job needs coordination.
We typically schedule within a few days, and our San Antonio coordination office dispatches crews to Terrell Hills with arrival windows we honor. We don’t overbook, and we call if traffic shifts the window.
We’re familiar with the city’s residential standards and work quietly, with marked vans and uniformed technicians. If your HOA requires notice for service vehicles, let us know when you book and we’ll provide documentation.
Ready for a free estimate? Call Hollis Air Duct Cleaning at (361) 326-5060. We’ll give you a written price before any work starts, and every job is backed by our 365-Day Done Right Promise.
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
"They checked each section with a camera and showed me the dust before and after. Thorough and honest."
- Nicole H."Duct sealing along with the cleaning cut our summer bill. Straight talk and fair price."
- Gwen O."Sealed some leaking duct joints in the crawl space with mastic. Rooms that were always cold now get air."
- Ronald W.




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