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
HVAC cleaning in Missouri City typically runs $380-$620 for a full system, and every job starts with a written price before we touch a single panel. Homes here face a double burden: original flex-duct systems in Quail Valley and Hunters Glen are 35-45 years old, well past their service life, and Hurricane Harvey’s flooding along Oyster Creek left post-remediation mold in ductwork that standard visual inspections missed. We dispatch crews from our Houston office to serve Missouri City locally. Call (346) 251-8919 for a written estimate.
Why Missouri City Homes Are Different
Missouri City’s housing stock splits between 1970s-1990s tract homes in western Fort Bend County and late-1990s-2010s construction in Sienna. Both generations relied on flex-duct HVAC runs through unconditioned attics, and both are now at or past peak service life. Fort Bend County’s expansive clay soils shift slabs and framing enough to disconnect duct boots and crimp joints over time.
The climate compounds this. Attic temperatures here exceed 130-140°F in summer while dew points stay above 70°F for months. That combination degrades flex-duct inner liners and creates condensation on supply registers that feeds mold colonies inside ducts. In Sienna-area homes near the Brazos River floodplain, we regularly find black mold growth in crawl-space duct chases even where no official flooding occurred, because the regional water table wicks humidity into unconditioned spaces year-round. Homeowners call it “musty AC smell.” It’s chronic duct contamination.
Our Main Missouri City Services
These are the three services Missouri City homeowners call about most. Each has its own dedicated page with full pricing and scope details.
Air Duct Cleaning in Missouri City
We clean every duct run with negative-pressure extraction, photographing the interior before and after so you can see what was removed. In Missouri City’s older subdivisions, we regularly find 2-4 inch debris build-up at flex-duct elbows where sagging has created low points. Our crews use Rotobrush and Nikro equipment on every job. Air Duct Cleaning in Missouri City

Dryer Vent Cleaning in Missouri City
Dryer vent blockages are common here because lint combines with Gulf Coast humidity to form dense mats that restrict airflow and create fire risk. We clean the full run from appliance to termination with rotary brushes and verify airflow restoration with a meter. Every job includes before-and-after photos. Dryer Vent Cleaning in Missouri City

Duct Repair & Sealing in Missouri City
Disconnected boots, crimped flex duct, and failed tape seals are standard findings in Missouri City’s aging housing stock. We repair or replace damaged sections and seal joints with mastic, then pressure-test the system to verify integrity. All work is documented with photos and backed by our 365-Day Done Right Promise. 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

HVAC cleaning in Missouri City addresses what the climate and housing age create: evaporator coils clogged with mold and dust, blowers coated in debris that reduces airflow, and condensers struggling against Gulf Coast pollen loads. We use Rotobrush, Nikro, and Abatement Technologies equipment on every job, and every system component is photographed before and after. HVAC Cleaning is our most called-for service in Fort Bend County because the combination of aging flex duct and extreme attic heat degrades system performance faster than in newer, higher-elevation suburbs.
Evaporator Coil Cleaning
Signs you need it
Ice formation on refrigerant lines, weak airflow from registers, or a musty smell when the AC cycles on in Missouri City’s humid months.
What it costs in Missouri City
Evaporator coil cleaning typically runs $180-$340 depending on accessibility and contamination level.
How we do it
We remove the coil assembly when possible, apply foaming cleaner, rinse with low-pressure water, and photograph the fin surface before reassembly.
Blower Cleaning
Signs you need it
Uneven heating or cooling across rooms, longer cycle times, or visible dust ejection when the fan starts.
What it costs in Missouri City
Blower cleaning typically runs $160-$280 for standard residential units.
How we do it
We remove the blower motor and wheel, clean each blade with compressed air and solvent, balance the assembly, and reinstall with torque verification.
What HVAC Cleaning Costs in Missouri City
| Item | Typical range in Missouri City |
|---|---|
| Full HVAC system cleaning | $380-$620 |
| Evaporator coil cleaning | $180-$340 |
| Blower cleaning | $160-$280 |
How do I know the HVAC cleaning was actually done?
Every duct run and component is photographed before and after, and you receive the complete photo record as a standard deliverable, not upon request. Call (346) 251-8919 for a written estimate.
Why does my AC smell musty even after filter changes?
In Missouri City’s climate, mold colonizes evaporator coils and drain pans where standing water meets constant humidity; filter changes don’t reach these internal components. Call (346) 251-8919 for a written estimate.
Air Quality & Sanitizing in Missouri City

Air quality and sanitizing in Missouri City targets the mold and bacteria that thrive in flex-duct systems exposed to 130°F attic heat and 70°F+ dew points for months each year. Sienna-area homes near the Brazos floodplain show particular susceptibility to hidden mold in crawl-space chases. We use Honeywell and Aprilaire equipment, and every treatment is photographed and documented. Air Quality & Sanitizing addresses what homeowners describe as “that smell” that returns weeks after standard cleaning.
Mold Treatment
Signs you need it
Visible black or green growth on registers, recurring musty odor after cleaning, or documented water damage in the home’s history.
What it costs in Missouri City
Mold treatment typically runs $280-$480 depending on contamination extent and duct accessibility.
How we do it
We apply EPA-registered antimicrobial through the full duct system, fog unconditioned spaces where mold originates, and verify reduction with post-treatment photo documentation.
UV Light Installation
Signs you need it
Repeated mold recurrence after treatment, family members with allergy symptoms that worsen when AC runs, or a home in flood-prone sections of Sienna or near Oyster Creek.
What it costs in Missouri City
UV light installation typically runs $320-$520 for a properly sized unit with installation.
How we do it
We mount a Honeywell or Aprilaire UV-C lamp at the evaporator coil location, wire to the air handler power supply, and verify irradiance levels with a meter.
What Air Quality & Sanitizing Costs in Missouri City
| Item | Typical range in Missouri City |
|---|---|
| Mold treatment | $280-$480 |
| UV light installation | $320-$520 |
| Bacteria sanitizing | $240-$400 |
Will mold come back after treatment?
In Missouri City’s humid climate, mold returns if the moisture source isn’t addressed; we identify and document the source, and UV light installation prevents recurrence at the coil. Call (346) 251-8919 for a written estimate.
Is post-Harvey mold still a problem in Missouri City?
We regularly find active mold in ducts of homes that flooded in 2017 and received surface remediation without duct inspection, particularly in Quail Valley and Sienna drainage corridors. Call (346) 251-8919 for a written estimate.
Brands We Service in Missouri City
We stock parts and service equipment from Honeywell, Aprilaire, Rotobrush, and Nikro, with common components available for same-day repair. Our technicians carry Guardsman and Abatement Technologies supplies for sanitizing work. our brands
Pricing for Air Duct Cleaning in Missouri City, TX

| Service | Typical range in Missouri City |
|---|---|
| Full HVAC system cleaning | $380-$620 |
| Evaporator coil cleaning | $180-$340 |
| Blower cleaning | $160-$280 |
| Condenser cleaning | $140-$240 |
| Air handler cleaning | $200-$360 |
| Mold treatment | $280-$480 |
| Bacteria sanitizing | $240-$400 |
| Odor removal | $220-$380 |
| UV light installation | $320-$520 |
| Air purifier installation | $400-$680 |
Prices increase in Missouri City when systems haven’t been serviced in 5+ years, when flex duct has collapsed and requires access panel creation, or when post-flood mold requires multiple treatment passes. Every price is written and agreed before work starts, per Haven Standard Clause 1.
Neighborhoods We Serve in Missouri City
We serve homeowners across Missouri City with crews dispatched from our Houston office. Typical scheduling is available within 3-5 business days, with emergency mold treatment prioritized.
- Quail Valley
- Hunters Glen
- Sienna
- Oyster Creek
- Lake Olympia
Service Area - Cities Near Missouri City

Our crews work throughout Fort Bend and Harris counties, with regular routes to Stafford, TX, Sugar Land, TX, Fresno, TX, and Bellaire, TX. Scheduling is coordinated from our Houston office for all locations.
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

Most residential duct cleaning and sanitizing does not require a permit in Missouri City, but duct repair or replacement that alters the HVAC system’s capacity may need Fort Bend County review; we verify requirements before quoting and include any permit costs in the written price.
Standard appointments are typically available within 3-5 business days; mold treatment and post-flood assessments are prioritized based on health risk. We do not charge expedite fees.
Yes, our technicians cover all Missouri City neighborhoods from the same dispatch pool, though Sienna’s newer construction and Quail Valley’s aging flex-duct systems require different equipment configurations that we confirm when you call.
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
"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."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.




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