Air Duct Cleaning in Angleton — One Price Per System, Agreed Before We Start

Air Duct Cleaning in Angleton, TX

Air duct cleaning in Angleton, TX typically costs $280–$550 for a full residential system and is usually completed in 3–4 hours. We’re Lone Star Air Duct Cleaning Service Houston, and our crew makes the run down State Highway 288 to Angleton regularly, usually within 45 minutes of a call from the 77515 or 77516 ZIP codes. Owner Scott Gray leads every job personally, bringing two decades of hands-on duct work to homes shaped by Brazoria County’s Gulf Coast humidity and Hurricane Harvey’s lasting impact. Call us at (855) 683-5929 for a free estimate.

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Why Angleton Homes Are Different

Angleton sits deep in Brazoria County’s Gulf Coast flood plain, and Hurricane Harvey inundated large swaths of the area in 2017. Countless homes that were gutted and rebuilt still have original or hastily replaced duct systems that absorbed moisture during flooding, making mold-colonized ductwork a pervasive problem years later. The bulk of Angleton’s housing stock consists of 1950s–1980s ranch-style, slab-on-grade homes built during the petrochemical boom; many retain long flex duct runs that sag, disconnect at joints, and trap debris in ways newer construction doesn’t. With relative humidity near or above 80% most of the year, HVAC systems run almost continuously as dehumidifiers, accelerating dust and mold accumulation inside ducts.

Air Duct Cleaning in Angleton

Our Air Duct Cleaning work in Angleton addresses contamination patterns you won’t find in higher-elevation communities just 20–30 miles north. The distinctive dark, musty biofilm we regularly discover on lower surfaces of floor-level supply runs comes directly from Harvey floodwater wicking into ductwork through slab penetrations and unsealed boots. We clean the full supply and return network with Rotobrush rotary systems and Nikro HEPA vacuums, pulling out coastal dust, pollen, and mold spores that settle in Angleton’s near-constant air circulation.

Residential Duct Cleaning

Angleton’s ranch homes built during the 1950s–1980s boom — slab-on-grade, low-pitched roofs, long flex duct runs through hot attics — accumulate debris differently than two-story suburban builds. A residential full system cleaning runs $280–$450 for up to 10 vents, or $400–$550 for 11–20 vents. For homes near the San Bernard River floodplain, we pay special attention to slab penetration points where Harvey’s moisture legacy still feeds biological growth.

Commercial Duct Cleaning

Angleton’s commercial spaces — medical offices along East Mulberry, retail near the Brazos Mall corridor — run larger HVAC systems under heavier load. We bring Abatement Technologies commercial-grade HEPA collection scaled for bigger ductwork, with pricing at $0.25–$0.45 per square foot. Scott Gray has cleaned systems for Angleton businesses where production dust or medical-grade air requirements demand documented completion.

How much does air duct cleaning cost in Angleton?

Most Angleton homeowners pay $280–$550 depending on vent count, accessibility, and contamination severity. That Harvey biofilm takes longer to remove than standard dust loading, and disconnected joints or damage may need repair before cleaning. We agree on one flat price per system before starting — no per-vent add-ons, no surprises. Call (855) 683-5929 for an exact quote; estimates are free.

Dryer Vent Cleaning in Angleton

Dryer vent cleaning in Angleton typically runs $150–$280 for a standard single-family home, with most jobs completed in under two hours. We’re familiar with the stretch down TX-288 and the rural roads off County Road 46 — Scott Gray and our crew make the run from Houston regularly, and we know the difference between a quick suburban job and the heavy-duty service that Angleton’s acreage properties demand. Our Dryer Vent Cleaning includes full camera inspection before we quote.

Vent Cleaning and Lint Removal

We clean with Rotobrush rotary brush systems paired with Nikro HEPA vacuums. For Angleton’s longer rural vent runs, that rotary action matters — a standard shop vac won’t agitate packed lint in a 30-foot run. Standard dryer vent cleaning for single-family homes with runs under 15 feet costs $150–$195; extended runs of 15–30 feet on rural properties run $195–$250. In the 1950s–1980s ranch homes common around Angleton, we often find original flex duct that’s sagging and trapping lint in low spots.

Vent Rerouting

Detached workshops, barn conversions, and rural outbuildings often have vent runs that are too long, too twisted, or pitched wrong. We reroute with rigid metal duct — never the crush-prone flex that fails under heat and lint load. Vent rerouting with rigid metal replacement typically costs $280–$450. We took a call from a homeowner off County Road 46 where a detached workshop’s dryer vent was clogged with mud daubers and lint, backing up so badly the dryer took three cycles to dry a load.

Why do Angleton dryer vents get a dark, musty biofilm worse than nearby towns?

Angleton’s position in the Brazoria County flood plain means Harvey floodwater wicked into ductwork through slab penetrations and unsealed boots, and that moisture legacy continues feeding biological growth in vent runs years later. The distinctive dark biofilm we find on lower vent surfaces here is nearly absent in higher-elevation communities just 20–30 miles north. If your home was built before 2017 or rebuilt after Harvey, this contamination is worth inspecting. Call (855) 683-5929 for a camera scope.

HVAC Cleaning in Angleton

HVAC cleaning in Angleton typically runs $280–$580 for a full system service, and we usually book within 48 hours. We know the local housing stock — the 1950s ranch homes off Mulberry Street, the post-Harvey rebuilds near the Brazos River flood plain — and we understand how Angleton’s 80%+ humidity forces systems to run as dehumidifiers almost year-round. Our HVAC Cleaning targets the components where that constant workload concentrates contamination.

Evaporator Coil Cleaning

Angleton’s evaporator coils work harder than almost anywhere in the Houston metro. With humidity hanging near 80% most of the year, your coil is essentially a dehumidifier running in overdrive. That constant condensation traps dust, pollen, and mold spores. We remove the coil assembly, clean with foaming agents safe for aluminum fins, and treat with Guardsman antimicrobial coating where biological growth is present. Evaporator coil cleaning typically costs $180–$320.

Air Handler Cleaning

The air handler is where Angleton’s problems concentrate. In older ranch homes around Angleton High School, original air handlers sit in closets or garages with minimal sealing; humidity wicks in, blower wheels cake with debris, and drain pans grow algae. We disassemble the blower housing, clean with Nikro HEPA-contained vacuums, and clear drain lines with pressurized flush. A full air handler cleaning runs $280–$450. For post-Harvey rebuilds with newer handlers, we inspect for premature wear from the 2017–2019 rush installation period.

How does Hurricane Harvey still affect HVAC cleaning in Angleton today?

Harvey’s 2017 flooding left mold colonies in ductwork that many homeowners don’t know exists. In Angleton’s slab-on-grade ranches, floodwater wicked into flex duct through slab penetrations and unsealed boots, creating biofilm that persists years later. We regularly find dark, musty contamination on lower duct surfaces during cleaning — contamination absent in homes just 20 miles north. If your home was built before 1990 or rebuilt after Harvey without full duct replacement, assume risk until inspected. Call (855) 683-5929.

Duct Repair & Sealing in Angleton

Duct repair and sealing in Angleton typically costs $280–$650 for most residential jobs. Scott Gray, our owner and lead technician, has spent two decades working on the exact duct systems found in Brazoria County’s ranch-style homes: long flex runs, slab-on-grade penetrations, and metal trunk lines corroded by Gulf Coast humidity. Our Duct Repair & Sealing stops the leaks that pull unconditioned attic air and crawlspace moisture directly into your living space.

Flex Duct Repair

The bulk of Angleton’s residential stock retains original or early-replacement flex duct runs that sag, disconnect at joints, and trap debris. Post-Harvey rebuilds added hastily installed ductwork in 2017–2019 that’s already showing premature wear. We replace collapsed or torn flex duct with properly sized, insulated runs — not the undersized R-4 insulation common in emergency rebuilds. Flex duct repair or replacement per run costs $180–$340. We support flex duct with proper strapping every 4 feet to prevent future sag.

Duct Sealing

Leaky ducts in Angleton don’t just waste money — they pull humid attic air directly into your living space. We pressurize the system and use smoke testing to locate every leak, then seal with mastic or foil-backed tape depending on location. Whole-system duct sealing with mastic typically runs $280–$450. For Angleton’s acreage properties with detached workshops, we extend sealing to auxiliary duct runs that feed outbuildings, accounting for longer spans and greater temperature differentials.

Why do my floor ducts always feel sticky and smell musty after a few months?

You’re almost certainly pulling moisture through unsealed slab penetrations, a pattern we see constantly in Angleton’s ranch-style homes built on grade. The sticky feeling is condensation on duct surfaces; the musty smell is microbial growth feeding on that moisture. We seal the boots with hydrophobic mastic and inspect the interior for biofilm. Call (855) 683-5929 and we’ll show you exactly what’s happening with a borescope camera.

Air Quality & Sanitizing in Angleton

Air quality sanitizing in Angleton typically costs $275–$650 depending on contamination severity. If your Angleton home still carries a musty smell years after Hurricane Harvey, the problem likely isn’t surface-level — it’s legacy mold colonizing ductwork that floodwater reached through slab penetrations. Our Air Quality & Sanitizing treats the biological contamination that mechanical cleaning alone won’t eliminate.

Mold Treatment

Last spring we treated a 1960s ranch on Palm Street where the homeowner complained of musty smell that worsened when the AC ran. Inside the floor-level supply runs we found dark biofilm coating the lower duct surfaces — classic Harvey aftermath wicking through the slab. Single-zone mold treatment runs $275–$350; whole-home mold remediation costs $350–$650. We use Rotobrush agitation with Abatement Technologies HEPA extraction, then follow with Guardsman sanitizing fog.

Bacteria Sanitizing

Standard duct cleaning removes debris. It doesn’t kill what’s living in it. In Angleton, where HVAC systems run almost continuously as dehumidifiers, that constant airflow spreads bacteria through every room. We apply Guardsman EPA-registered sanitizing agents with proper dwell time and fogging pressure to reach past the first few feet of duct. Bacteria sanitizing as a standalone service in Angleton typically costs $275–$425. We recommend pairing it with mechanical cleaning for homes that haven’t been professionally cleaned within two years.

Does UV light installation help with Harvey-era mold?

UV-C lights significantly reduce mold regrowth in Angleton homes still fighting Harvey-legacy contamination, but they’re part of a system, not a standalone fix. We position Honeywell and Aprilaire UV units at the coil and in supply plenums to kill spores before colonization, which helps maintain results after we’ve completed mechanical remediation. For homes with active, extensive biofilm, we always clean first, then install UV for ongoing control. Typical Angleton UV light installation runs $450–$850.

Brands We Service in Angleton

We maintain and install equipment from Honeywell, Aprilaire, and Guardsman, with parts stocked for common Angleton system configurations. Most repairs that don’t require specialty ordering finish same-day. See our brands for the full roster.

Pricing for Air Duct Cleaning in Angleton, TX

Neighborhoods We Serve in Angleton

We work across Angleton’s full residential and commercial footprint, from established neighborhoods to newer developments and rural acreage. Most properties in the 77515 and 77516 ZIP codes can be reached within 45 minutes of a call.

• Palm Street area (1960s ranch homes)
• East Mulberry corridor (medical and retail)
• Locust Street neighborhoods (petrochemical-era housing)
• Brazos Mall vicinity
• County Road 46 rural properties

Service Area — Cities Near Angleton

We regularly serve Angleton, TX from our Houston base, and we make the run to neighboring Brazoria County communities several times weekly. Our service area includes Alvin, TX to the northeast, Manvel, TX to the north, Fresno, TX and Sienna Plantation, TX toward the Houston metro, and Santa Fe, TX to the east. If you’re unsure whether we cover your property, call (855) 683-5929 and we’ll confirm.

FAQs About Air Duct Cleaning in Angleton