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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After
Before
After
Before
AfterAir Duct Cleaning in Castle Hills, TX
Whole-system HVAC cleaning in Castle Hills typically runs $450-$850 for a single-family home, with air quality and sanitizing add-ons ranging $200-$500 depending on whether mold treatment or UV installation is needed. Most Castle Hills homes were built between 1952 and the mid-1970s with original ductwork that has never been opened for inspection. Call (830) 549-6847 for a written estimate before any work begins.
We dispatch crews to Castle Hills from our Dallas-Fort Worth scheduling office, and the jobs we book here differ from newer suburbs in one respect: the housing stock is old enough that we regularly document failures you cannot see from a register. Our crews carry Rotobrush and Nikro negative-pressure extraction systems sized for the rigid sheet-metal trunk lines and early flex-duct branches common in Castle Hills attics.
Why Castle Hills Homes Are Different
Castle Hills incorporated in the early 1950s and built out almost entirely within twenty years. That means the majority of homes here contain original or first-generation ductwork that has run San Antonio’s eight-to-nine-month cooling season for roughly fifty years straight. Attic installations are standard, and decades of heat cycling have cracked sealants and separated flex connections.
The second factor is mountain cedar. Castle Hills sits in the heart of Texas Hill Country cedar-fever territory, where Ashe juniper pollen floods exterior air intakes at extreme concentrations from December through February. Technicians working here regularly find return-air plenums packed with a yellowish-gray crust of cedar pollen layered over years of dust. Homeowners who replaced filters infrequently during the 1970s through 1990s often left this material to bake into duct liner, making Castle Hills attic duct interiors visually and chemically different from anything in a 2000s-era subdivision across the city line.
The combination of aging fiberglass duct liner and accumulated biological debris means standard brush-and-vacuum cleaning often reveals conditions that require more than a surface pass. We photograph every run so the homeowner sees what we found before we discuss next steps.
Our Main Castle Hills Services
Castle Hills homeowners contact us most often for these three services, each with its own dedicated page and pricing:
Air Duct Cleaning in Castle Hills
We clean the full duct network, from return-air plenum through trunk lines to each register, using negative-pressure extraction with Rotobrush contact cleaning for lined metal and flex-duct branches. Castle Hills jobs often require additional passes where cedar pollen has bonded to fiberglass liner. Every run is photographed before and after. Air Duct Cleaning in Castle Hills.
Dryer Vent Cleaning in Castle Hills
Dryer vent blockages in Castle Hills typically occur where 1970s-era vinyl or foil transition ducts have sagged in attic runs, creating lint traps that standard brushes cannot clear. We use Nikro rotary whip systems with reverse airflow to dislodge packed lint, then verify flow with anemometer readings at the exterior cap. Dryer Vent Cleaning in Castle Hills.
Duct Repair & Sealing in Castle Hills
Sealant failure at flex-duct connections and cracked plenum seams are the most common issues we document in Castle Hills attics. We repair with mastic and mechanical fasteners, then pressure-test the system to verify seal integrity. Every repair scope is written and priced before work starts. 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
Castle Hills homes run cooling eight to nine months annually, and the evaporator coils, blowers, and condensers in these 1950s-1970s systems accumulate debris faster than equipment in cooler climates. Original installations often lack proper filter housings, allowing unfiltered return air to coat internal components with the same cedar pollen and dust we find in ductwork. HVAC Cleaning addresses the mechanical side of this accumulation.
Evaporator Coil Cleaning
Signs you need it
Ice formation on the coil housing, weak airflow from registers, or a musty odor when the compressor cycles on.
What it costs in Castle Hills
Evaporator coil cleaning in Castle Hills typically ranges $280-$450.
How we do it
We remove the coil access panel, apply foaming cleaner formulated for aluminum fins, 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 airflow between rooms, or dust puffing from registers at startup.
What it costs in Castle Hills
Blower motor and wheel cleaning in Castle Hills typically ranges $220-$380.
How we do it
We remove the blower assembly, clean the squirrel cage and motor housing with compressed air and contact solvent, balance the wheel, and document amp draw before reinstalling.
What HVAC Cleaning Costs in Castle Hills
| Item | Typical range in Castle Hills |
|---|---|
| Evaporator coil cleaning | $280-$450 |
| Blower cleaning | $220-$380 |
| Condenser cleaning | $180-$320 |
How do I know my HVAC components need cleaning, not just my ducts?
If you have cleaned your ducts but still smell must when the compressor runs, or if ice forms on the coil line set, the debris is likely inside the air handler, not the duct network. Call (830) 549-6847 and we’ll inspect both.
Will cleaning my evaporator coil improve cooling in a 1960s Castle Hills system?
Yes, if the coil is fouled; a clean coil transfers heat properly and can restore 10-15% of lost capacity, though it cannot compensate for refrigerant leaks or undersized equipment common in that era.
Air Quality & Sanitizing in Castle Hills
Castle Hills homes built before 1975 often contain duct liner that has absorbed fifty years of humidity, pollen, and organic debris, creating conditions where microbial growth persists even after mechanical cleaning. The cedar pollen load here adds a distinctive particulate layer that standard filtration does not address. Air Quality & Sanitizing targets these biological and chemical residues.
Mold Treatment
Signs you need it
Visible dark spotting on duct liner, a persistent earthy odor after cleaning, or allergy symptoms that worsen when the system runs.
What it costs in Castle Hills
Mold treatment for a full system in Castle Hills typically ranges $350-$650.
How we do it
We apply EPA-registered antimicrobial through the duct network using a cold-fogger, allow prescribed dwell time, then extract residual moisture with negative-pressure drying.
UV Light Installation
Signs you need it
Repeated microbial growth after cleaning, or a household member with immunocompromise who needs continuous surface sanitization in the air handler.
What it costs in Castle Hills
UV-C light installation in Castle Hills typically ranges $400-$750 per lamp assembly.
How we do it
We mount a Honeywell or Aprilaire UV lamp downstream of the evaporator coil, wire to the blower circuit for automatic operation, and verify irradiance with a meter at installation.
What Air Quality & Sanitizing Costs in Castle Hills
| Item | Typical range in Castle Hills |
|---|---|
| Mold treatment | $350-$650 |
| UV light installation | $400-$750 |
| Bacteria sanitizing | $250-$450 |
Does UV light kill mountain cedar pollen in Castle Hills ducts?
No, UV-C sanitizes microbial surfaces but does not remove particulate; for cedar pollen we pair UV with upgraded filtration, typically a MERV 11 or higher media filter installed at the return plenum.
How do I know mold treatment worked?
We photograph treated surfaces before and after, and if laboratory confirmation is requested we can coordinate third-party post-treatment sampling at additional cost.
Brands We Service in Castle Hills
We stock parts and service equipment from Honeywell, Aprilaire, Abatement Technologies, and Guardsman, with filter media and UV lamps carried on every Castle Hills truck for same-visit installation when needed. our brands
Pricing for Air Duct Cleaning in Castle Hills, TX
| Service | Typical range in Castle Hills |
|---|---|
| Whole-system air duct cleaning | $450-$850 |
| Dryer vent cleaning | $150-$280 |
| Duct repair & sealing (minor) | $200-$400 |
| Duct repair & sealing (extensive) | $500-$1,200 |
| Evaporator coil cleaning | $280-$450 |
| Blower cleaning | $220-$380 |
| Condenser cleaning | $180-$320 |
| Mold treatment | $350-$650 |
| UV light installation | $400-$750 |
| Bacteria sanitizing | $250-$450 |
Prices in Castle Hills run toward the higher end of these ranges when attics contain original fiberglass-lined ductwork requiring additional contact time, or when cedar pollen has bonded to liner surfaces. Haven Standard Clause 1 requires a written price before any work starts, every time, with no exceptions.
Neighborhoods We Serve in Castle Hills
Castle Hills is compact and fully built out, so response scheduling is consistent across the city, typically next-day or two-day availability depending on season. We serve these representative neighborhoods:
- Castle Hills Estates
- North Castle Hills
- Castle Hills Village
- West Avenue corridor
- Fredericksburg Road area
Service Area - Cities Near Castle Hills
CleanRun crews serve Castle Hills from our Dallas-Fort Worth scheduling office, with regular routes through New Braunfels, TX, Cibolo, TX, Seguin, TX, and Schertz, TX. Each city has distinct housing stock and climate exposure that changes how we approach duct and HVAC cleaning.
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
No permit is required for cleaning or sealing existing ductwork in Castle Hills; permits apply only to new HVAC installations or structural modifications, which we coordinate with the city when needed as part of larger repair scopes.
We typically book Castle Hills jobs within one to two business days; peak cedar season, January through February, may extend to three days due to elevated call volume.
Castle Hills is almost entirely single-family residential; we focus on detached homes here and do not market to multi-family properties within the city limits.
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
"My allergies genuinely improved. They also told me the ducts did not need sealing, which I had been quoted for elsewhere."
- Petra K."Thorough job on the ducts and the dryer vent. Left the house clean and the paperwork was clear."
- Rafael I."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.