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 Missouri City, TX
Complete HVAC cleaning in Missouri City typically runs $380-$680 for a whole-home system, with air quality treatments ranging $180-$450 depending on scope. In Quail Valley’s 1970s-era homes, we regularly find evaporator coils caked with debris from decades of continuous Gulf Coast humidity cycling. Crews dispatch from our Houston office and carry Rotobrush and Abatement Technologies equipment sized for both the original tract homes off Cartwright Road and the larger Sienna builds near Highway 6. Call (346) 253-1822 for a written estimate before any work begins.
Why Missouri City Homes Are Different
Missouri City sits on Fort Bend County’s most expansive clay soils, the kind that shrinks in drought and swells after rain, shifting slab foundations enough to pull ductwork apart at the plenum. In Quail Valley neighborhoods developed from 1972 through 1985, we’re working with original fiberglass duct board and early flex duct that has endured 40-50 years of attic temperatures exceeding 140°F each summer. That combination, unique to this pocket of the Houston metro, means deteriorated liner, loose collars, and mold infiltration show up as routine findings on our camera inspections, not surprises.
The newer Sienna master-planned community, built from the late 1990s through the 2010s, presents a different profile: better-engineered slabs, pier-and-beam construction in some sections, and flex duct that hasn’t yet reached end-of-life. But even there, the subtropical humidity that blankets Missouri City ten months a year keeps HVAC systems running nearly continuously, accelerating coil fouling and microbial growth inside air handlers. Two housing eras, two distinct duct conditions, one shared climate.
Our Main Missouri City Services
These are the three services Missouri City homeowners request most often, each with its own dedicated local page.
Air Duct Cleaning in Missouri City
We clean every duct run with negative-pressure extraction, photographing the interior before and after so you can verify the debris removal. In Quail Valley homes, we often find disconnected flex sections at the plenum that require repair before cleaning can be effective. Every job includes a written price before work starts and a Documented Photo Record delivered when we finish. Air Duct Cleaning in Missouri City

Dryer Vent Cleaning in Missouri City
Lint accumulation in dryer vents is a fire hazard, particularly in homes where the vent run exceeds 15 feet through attic space. We use rotary brushing and high-velocity air to clear the full line, then verify airflow with a meter. The work is quoted in writing before we begin, backed by our 365-Day Done Right Promise. Dryer Vent Cleaning in Missouri City

Duct Repair & Sealing in Missouri City
Foundation movement from Fort Bend County clay soils frequently separates duct joints and cracks duct board at the plenum. We repair with mechanical fastening and mastic sealant, then pressure-test to verify. Every repair scope is documented in writing with a fixed price before any work proceeds. Duct Repair & Sealing in Missouri City

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 Missouri City

Missouri City’s year-round cooling load and attic conditions above 140°F mean evaporator coils and blower assemblies accumulate debris faster than in drier climates. In Quail Valley homes with original air handlers, we regularly photograph coils with 3-5 years of compacted buildup restricting airflow by 30% or more. Our HVAC Cleaning service addresses each component with equipment matched to the contamination level we find.
Evaporator Coil Cleaning
Signs you need it
Ice forming on refrigerant lines, weak airflow from registers, or cooling bills that climb without thermostat changes.
What it costs in Missouri City
Evaporator coil cleaning typically runs $180-$340 depending on accessibility and contamination level.
How we do it
We apply foaming cleaner, rinse with low-pressure water, and capture runoff with a sealed pan system to protect the air handler cabinet.
Blower Cleaning
Signs you need it
Vibration noise from the air handler, uneven airflow room-to-room, or dust streaking from supply registers.
What it costs in Missouri City
Blower assembly cleaning ranges $140-$280 based on motor type and debris depth.
How we do it
We remove the blower wheel and housing, clean each vane with compressed air and solvent, balance the assembly, and photograph before reinstallation.
What HVAC Cleaning Costs in Missouri City
| Item | Typical range in Missouri City |
|---|---|
| Evaporator coil cleaning | $180-$340 |
| Blower assembly cleaning | $140-$280 |
| Full HVAC system cleaning | $380-$680 |
How do I know my HVAC system needs cleaning, not just my ducts?
If rooms cool unevenly, the air handler makes new noise, or your energy bill rises without rate changes, the coils or blower likely need attention. We inspect both during every duct evaluation and show you the photo evidence before quoting. Call (346) 253-1822 for a free estimate.
Can HVAC cleaning fix the musty smell when my AC first turns on?
That odor usually comes from microbial growth on the evaporator coil or in the condensate pan, both addressed with coil cleaning and pan treatment. In Missouri City’s humidity, we find this in roughly half of Quail Valley systems over 15 years old. Call (346) 253-1822 for a free estimate.
Air Quality & Sanitizing in Missouri City

Missouri City’s subtropical humidity creates ideal conditions for mold and bacterial growth inside duct systems, particularly in Quail Valley homes where decades of condensation have degraded duct board interiors. Our Air Quality & Sanitizing service targets these biological contaminants with treatments applied after mechanical cleaning, not instead of it.
Mold Treatment
Signs you need it
Visible dark spotting on duct board or registers, musty odor that persists after cleaning, or family members with unexplained respiratory irritation.
What it costs in Missouri City
Whole-system mold treatment ranges $280-$520 depending on contamination extent and duct material.
How we do it
We apply an EPA-registered fungistatic treatment to all interior surfaces after negative-pressure cleaning, with dwell time verified before system restart.
UV Light Installation
Signs you need it
Recurring mold despite prior treatment, or a coil that requires annual cleaning due to rapid biological regrowth.
What it costs in Missouri City
UV-C lamp installation runs $320-$580 including fixture, bulb, and electrical connection to the air handler.
How we do it
We mount a Guardsman or comparable UV fixture downstream of the coil with a sight glass for bulb inspection, wired to the blower circuit for automatic operation.
What Air Quality & Sanitizing Costs in Missouri City
| Item | Typical range in Missouri City |
|---|---|
| Mold treatment (whole system) | $280-$520 |
| UV light installation | $320-$580 |
| Bacteria sanitizing | $180-$350 |
Is mold in my ducts common in Missouri City?
In Quail Valley homes with original duct board, we find active mold in approximately one-third of systems over 25 years old due to humidity infiltration through degraded seals. Sienna homes show lower rates but are not immune. Call (346) 253-1822 for a free estimate.
Does UV light actually prevent mold, or just slow it?
Properly installed UV-C at the coil surface prevents mold colonization by breaking DNA bonds; it does not treat existing duct contamination, which requires mechanical cleaning first. We install Guardsman fixtures sized to the air handler CFM. Call (346) 253-1822 for a free estimate.
Brands We Service in Missouri City
We stock filters, coils, and UV components from Honeywell, Aprilaire, and Guardsman, with most common sizes available on our Houston-area service trucks for same-visit replacement. See our brands for the full equipment roster including Rotobrush and Abatement Technologies cleaning systems.
Pricing for Air Duct Cleaning in Missouri City, TX

| Service | Typical range in Missouri City |
|---|---|
| Whole-home air duct cleaning | $320-$580 |
| Dryer vent cleaning | $120-$220 |
| Evaporator coil cleaning | $180-$340 |
| Blower assembly cleaning | $140-$280 |
| Full HVAC system cleaning | $380-$680 |
| Duct repair & sealing (per system) | $280-$620 |
| Mold treatment (whole system) | $280-$520 |
| UV light installation | $320-$580 |
| Bacteria sanitizing | $180-$350 |
Prices increase with system size, contamination depth, and accessibility issues such as attic air handlers in Quail Valley’s tight eaves. Every quote is written and fixed before work begins under Haven Standard Clause 1; the price on the page is the price you pay.
Neighborhoods We Serve in Missouri City
We schedule Missouri City appointments with arrival windows confirmed by text, typically offering next-day or two-day availability depending on season. Our crews know the difference between Quail Valley’s original slab neighborhoods and Sienna’s varied phases, and we arrive with equipment sized accordingly.
- Quail Valley
- Sienna
- Lake Olympia
- Brightwater
- Hunters Glen
Service Area - Cities Near Missouri City

CleanRun crews serve homeowners throughout Fort Bend and southwest Harris counties, with Stafford, TX and Sugar Land, TX to the north, Fresno, TX to the south, and Bellaire, TX inside the Loop. Scheduling and dispatch are coordinated from our Houston office, with route optimization that keeps arrival times predictable across the full service area.
Serving Missouri City, TX - Our Local Coverage Area
We’re based in the Missouri City 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 Missouri City

Standard duct cleaning and sanitizing do not require permits in Missouri City. Duct repair that modifies the HVAC system’s structural connections or electrical components may need inspection; we handle permit documentation when our scope crosses that threshold and include any fees in the written quote.
We typically offer next-business-day or two-day availability for Missouri City appointments, with seasonal peaks in July-August and January extending that slightly. All scheduling is confirmed by text with technician name and photo under Haven Standard Clause 3: Verified Crews.
Yes. We carry equipment configurations for both the compact attics and original duct board common in Quail Valley and the larger modern systems in Sienna. Our written quote reflects the actual conditions we find, not a one-size-fits-all rate.
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 Missouri City Customers Say
"On time, professional, and explained what the readings meant without talking down to me."
- Warren E."My allergies genuinely improved. They also told me the ducts did not need sealing, which I had been quoted for elsewhere."
- Petra K."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.




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