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
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Before
AfterAir Duct Cleaning in Castle Hills, TX
Whole-system HVAC cleaning in Castle Hills typically runs $380-$680 for a standard mid-century ranch home, with air quality and sanitizing treatments adding $180-$420 depending on whether mold, bacteria, or residual cedar pollen is the primary concern. Castle Hills homes built between 1950 and 1972 present a specific challenge: original sheet-metal or early flex-duct systems now serving modern high-efficiency air handlers, creating pressure mismatches and accelerated particulate buildup that newer neighborhoods simply don’t face. We schedule Castle Hills jobs through our Dallas-Fort Worth dispatch office, with crews working the San Antonio metro area daily. Call (726) 600-7155 for a written estimate before any work begins.
Why Castle Hills Homes Are Different
Castle Hills is a fully incorporated city surrounded on all sides by San Antonio, and it maintains its own building and mechanical permit requirements separate from San Antonio’s. Contractors who assume one city permit covers both jurisdictions learn otherwise quickly. For ductwork, this means any repair or modification that alters the original system needs Castle Hills-specific permitting, not a San Antonio filing.
The housing stock is almost uniformly mid-century ranch, 1,500-2,500 square feet, built between roughly 1950 and 1972. Many still run original or first-generation replacement ductwork in attic spaces that hit extreme temperatures nine months of the year. We regularly find deteriorating fiberglass duct liner, collapsed inner flex-duct sections, and disconnected joints at panned-floor returns in these older systems.
The cedar pollen factor is real. Castle Hills sits on the edge of the Hill Country, and Ashe juniper pollen season from December through February produces some of the highest counts in the United States. Homes seal up tight while recirculating pollen-laden air through ducts that haven’t been cleaned since the previous winter. Post-cedar-season duct cleaning isn’t an upsell here; it’s a practical annual need for residents with allergies or asthma.
Our Main Castle Hills Services
Castle Hills homeowners call us most often for these three services, each with its own dedicated page:
Air Duct Cleaning in Castle Hills
We clean the full duct network in Castle Hills homes, including supply runs, return trunks, and plenums, using negative-pressure extraction with Rotobrush and Nikro equipment. The uniform age of housing here means we see predictable patterns: heavy debris at first elbows, degraded liner at attic transitions, and cedar pollen compacted in return lines after February. Every job ends with a Documented Photo Record of every run, delivered as a standard deliverable. Air Duct Cleaning in Castle Hills
Dryer Vent Cleaning in Castle Hills
Dryer vent blockages in Castle Hills often involve mid-century vent routing through slab foundations or long horizontal runs across attics that sag with age. Lint accumulation in these older configurations is a genuine fire hazard, and we clear the full line from appliance to termination with rotary brushing and high-velocity air. The written price covers the complete cleaning; no per-foot add-ons. Dryer Vent Cleaning in Castle Hills
Duct Repair & Sealing in Castle Hills
Castle Hills duct repair addresses the specific failures common to 1950s-1970s systems: separated flex-duct inner cores, rusted sheet-metal seams, and failed mastic at plenum connections. Because Castle Hills issues its own mechanical permits, we file correctly for any repair that modifies the original system layout. All repair work includes before-and-after photography and the 365-Day Done Right Promise in writing. Duct Repair & Sealing in Castle 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.
BeforeAfterHVAC Cleaning in Castle Hills
HVAC cleaning in Castle Hills means working on equipment connected to duct systems never designed for modern air handlers. The original low-capacity furnaces and window-unit infrastructure forced upgrades onto aging distribution networks, and the result is blower wheels caked with debris, evaporator coils choked with particulate, and condensers struggling against Hill Country dust. We document every component before touching it. Our HVAC Cleaning service covers the full mechanical system, not just the ducts.
Evaporator Coil Cleaning
Signs you need it
Ice buildup on refrigerant lines, weak airflow from registers, or a musty smell when the AC cycles on in Castle Hills homes usually means the evaporator coil is clogged with dust and pollen.
What it costs in Castle Hills
Evaporator coil cleaning in Castle Hills typically ranges from $280 to $450, with price varying by accessibility and whether the coil requires removal for proper cleaning.
How we do it
We access the coil through the plenum or air handler cabinet, apply foaming cleaner approved for aluminum fins, rinse with low-pressure water to avoid fin damage, and photograph the coil before and after.
Blower Cleaning
Signs you need it
Vibration noise from the air handler, uneven heating or cooling across rooms, or a blower wheel visibly caked with gray fuzz indicates it’s past due for cleaning.
What it costs in Castle Hills
Blower wheel and housing cleaning in Castle Hills generally falls between $220 and $380, depending on whether the wheel must be removed for access.
How we do it
We remove the blower assembly when possible, clean the wheel blades and housing with compressed air and soft brushes, balance-check the wheel on reinstallation, and document with before-and-after photos.
What HVAC Cleaning Costs in Castle Hills
| Item | Typical range in Castle Hills |
|---|---|
| Evaporator coil cleaning | $280 - $450 |
| Blower wheel and housing cleaning | $220 - $380 |
| Condenser coil cleaning | $180 - $320 |
How often should HVAC cleaning be done in Castle Hills?
Every 2-3 years for the mechanical components, with annual duct cleaning if residents have cedar pollen sensitivity or visible dust accumulation. Call (726) 600-7155 to schedule a free estimate.
Can HVAC cleaning fix uneven temperatures between rooms?
It often helps significantly when the cause is restricted airflow from dirty coils or blower wheels, though duct leakage may require separate sealing. We diagnose the root cause before quoting any work.
Air Quality & Sanitizing in Castle Hills
Air quality and sanitizing in Castle Hills addresses what accumulates in 50-to-70-year-old duct systems during cedar pollen season and through humid Hill Country summers: mold in fiberglass liner, bacteria in condensate pans, and persistent odors that standard cleaning won’t remove. Our Air Quality & Sanitizing service treats the source, not the symptom, with documented before-and-after verification.
Mold Treatment
Signs you need it
Visible black or green staining on registers, a wet cardboard smell when the system runs, or recent water intrusion in the attic ductwork suggests active mold growth.
What it costs in Castle Hills
Mold treatment for a standard Castle Hills ranch home ranges from $450 to $780, including application, dwell time, and post-treatment verification sampling.
How we do it
We apply EPA-registered antimicrobial through the full duct network, allow proper dwell time per manufacturer specification, and verify treatment with post-application photo documentation of treated surfaces.
UV Light Installation
Signs you need it
Recurring mold or bacterial growth despite cleaning, or a household member with immunocompromise who needs continuous air-stream sterilization, indicates UV-C is appropriate.
What it costs in Castle Hills
UV-C light installation in Castle Hills air handlers runs $380 to $650, including the lamp assembly, mounting at the coil or blower location, and electrical connection.
How we do it
We mount a Honeywell or Aprilaire UV-C lamp at the coil or blower housing to irradiate passing air and inhibit microbial growth on wet surfaces, with annual lamp replacement scheduled.
What Air Quality & Sanitizing Costs in Castle Hills
| Item | Typical range in Castle Hills |
|---|---|
| Mold treatment (whole system) | $450 - $780 |
| UV-C light installation | $380 - $650 |
| Bacteria sanitizing treatment | $280 - $520 |
Is mold treatment safe for pets and kids?
We use EPA-registered products with manufacturer-specified re-entry times, typically 2-4 hours after application, and we document the products used on your written job record for your reference.
Does UV light actually work in older Castle Hills systems?
UV-C is effective at the coil and blower surfaces where it is installed; it does not sterilize the full duct network, so we pair it with mechanical cleaning for complete results. Call (726) 600-7155 to discuss whether UV is appropriate for your system.
Brands We Service in Castle Hills
We stock parts and service equipment from Honeywell, Aprilaire, and other major manufacturers, with most common filters, UV lamps, and media available without ordering delay. For less common components in Castle Hills’ aging housing stock, we source within 24-48 hours through our Dallas-Fort Worth supply chain. See our brands for the full list.
Pricing for Air Duct Cleaning in Castle Hills, TX
| Service | Typical range in Castle Hills |
|---|---|
| Whole-system air duct cleaning (standard ranch) | $380 - $680 |
| HVAC cleaning (evaporator coil) | $280 - $450 |
| HVAC cleaning (blower wheel) | $220 - $380 |
| HVAC cleaning (condenser coil) | $180 - $320 |
| Mold treatment (whole system) | $450 - $780 |
| UV-C light installation | $380 - $650 |
| Bacteria sanitizing treatment | $280 - $520 |
| Dryer vent cleaning | $150 - $280 |
Prices in Castle Hills run toward the higher end of these ranges when systems have original 1950s-1970s ductwork with limited access panels, degraded liner requiring careful handling, or cedar pollen compacted in multiple return lines. Every job starts with a written price under Haven Standard Clause 1, agreed before any work begins, with no per-vent add-ons or post-arrival upsells.
Neighborhoods We Serve in Castle Hills
Castle Hills is compact, and our crews reach any address within the city limits on standard scheduling. These are the neighborhoods we work most frequently:
- Castle Hills Estates
- Olmos Park Terrace adjacencies
- North Castle Hills
- West Avenue corridor ranches
- Original 1950s core near City Hall
Response scheduling is coordinated through our Dallas-Fort Worth office with same-week availability typical for Castle Hills.
Service Area - Cities Near Castle Hills
We serve Castle Hills directly and work regularly in surrounding communities. Homeowners in San Antonio, TX, Alamo Heights, TX, Terrell Hills, TX, and Leon Valley, TX can schedule the same documented service with written upfront pricing and the 365-Day Done Right Promise.
Serving Castle Hills, TX - Our Local Coverage Area
We’re based in the Castle 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 Castle Hills
Standard cleaning and sanitizing do not require permits. If we find damage requiring duct repair or modification that alters the original system layout, we file the appropriate Castle Hills mechanical permit, not a San Antonio permit, because Castle Hills is an independent incorporated city with its own building department.
We typically schedule within 3-5 business days, with flexibility for households affected by severe cedar pollen reactions during peak season. All calls are answered by a live person who can check real availability.
Older systems with original sheet-metal or degraded flex-duct require more time and care to clean without causing damage. Our price includes the full documented photo record, written warranty, and no post-arrival add-ons, which coupon-priced competitors often exclude.
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 Castle Hills Customers Say
"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."My allergies genuinely improved. They also told me the ducts did not need sealing, which I had been quoted for elsewhere."
- Petra K.