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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AfterFast, Reliable Air Duct Cleaning Across League City
Air duct cleaning in League City typically runs $380-$680 for a full residential system, with post-flood mold remediation adding $200-$450 depending on contamination depth. Most jobs are scheduled within 3-5 business days, and every estimate starts with a written price before any panel comes off.
We’re the Air Duct Cleaning in League City crew homeowners call when they want to see what was actually inside their ducts, not just hear a vacuum run. Our scheduling desk in Houston dispatches background-checked, uniformed technicians to League City daily - from the newer builds along FM 518 to the 1990s subdivisions tucked against Clear Creek. We know the parking restrictions at the Bay Colony townhomes, the tight equipment access at Harbour Pointe condos, and the specific failure patterns that Gulf moisture and 140°F attics produce in this market. Call (346) 253-1822 and a live person will answer, 24/7.
Why CleanRun Air Duct Cleaning Pearland Is League City’s Preferred Air Duct Cleaning Company
We’ve been documenting our work since 2013. Every League City job gets the same deliverable: a written price before work starts, a photo record of every duct run before and after, and the 365-Day Done Right Promise backed in writing under Haven Standard Clause 1. No manager approval needed. If it’s not right, we make it right.
Our technicians are identified by name before arrival, operate under Haven Standard Clause 3: Verified Crews, and carry professional-grade equipment from Rotobrush, Abatement Technologies, and Aprilaire - brands customers can look up independently. We’ve served over 52,000 homes, every one with that same documented record.
League City homeowners specifically bring us competitor estimates under our Free Second Opinion policy. We put our number next to theirs in writing. No obligation. The difference is usually scope: whether the quote includes the return plenum, the evaporator coil, or just the supply registers.
Our Air Duct Cleaning Services in League City
Return Duct Cleaning
Return ducts pull air from your living space back to the HVAC unit, and in League City they’re where we find the most serious post-Harvey contamination. The return plenum - the large box behind your main grille - is the first place floodwater entered through utility chases in Clear Creek floodplain homes. We were called to a 1999 two-story in the Clear Creek floodplain where the homeowner kept getting musty odors from the upstairs registers two years after Harvey. Our tech popped the return-air grille in the upstairs hall and found black mold and standing flood debris inside the plenum; we ran camera inspection down the flex runs, hit them with agitation tools under negative pressure with HEPA filtration, and the odor was gone after the system cleaning. Every return duct cleaning includes full video inspection and a documented photo record of the plenum interior.
Video Inspection
We don’t guess. Our Air Duct Cleaning team runs a lighted camera through every duct run before quoting remediation scope, especially critical in League City’s flood-affected housing stock. The camera shows exactly where flex duct has separated at mastic joints, where fiberglass insulation has degraded in 140°F attic heat, and where biological growth is active versus dormant. Customers receive these images as part of the standard job record. In League City’s dense housing - apartments off FM 518, condos at South Shore Harbour - video inspection also verifies whether ductwork is original or was replaced during post-Harvey renovation, a distinction that changes both pricing and approach.
Full System Cleaning
A full system cleaning addresses supply ducts, return ducts, the plenum, the evaporator coil, and the blower assembly as one integrated scope. In League City this matters more than in drier markets. Persistent Gulf moisture keeps dew points elevated along the Galveston Bay estuary, so poorly insulated duct runs condense during the long cooling season and recontaminate evaporator coils within months of a coil cleaning alone. Cleaning the coil without addressing duct contamination is half a job. Our full system cleaning uses negative-pressure extraction - a large vacuum attached to the main trunk that pulls dislodged debris through the entire system rather than pushing it into your living space - with HEPA filtration on the exhaust.
Residential Duct Cleaning
League City’s explosive growth from the late 1980s through the 2000s produced a dense stock of suburban tract homes almost universally built with flexible duct systems routed through unconditioned attics that routinely exceed 140°F in summer. That extreme heat degrades flex-duct connections and mastic joints over time, causing separated seams that pull hot, fiberglass-laden attic air directly into living spaces - a failure mode technicians find on nearly every older service call here. Residential cleaning includes register removal, mechanical agitation with Rotobrush tools, and negative-pressure extraction through the main trunkline, with Duct Repair & Sealing in League City available when separated seams need more than cleaning.
Commercial Duct Cleaning
League City’s commercial base - medical offices along I-45, retail at Baybrook Mall perimeter, marina services at South Shore Harbour - requires scheduled cleaning that doesn’t disrupt operations. We work around business hours, coordinate with building maintenance on roof access for larger equipment, and provide the same documented photo record as residential jobs. Commercial systems typically use rigid metal ductwork rather than flex, which changes our agitation approach but not our documentation standard.
Supply Duct Cleaning
Supply ducts push conditioned air into each room, and in League City they often show a different contamination profile than returns. Where return plenums hold flood silt and mold, supply runs more commonly accumulate fine dust and fiberglass particles from degraded flex-duct liner. We clean each supply run individually from the register back to the trunk, with before-and-after photos per run. In homes with zoning systems - increasingly common in League City’s 2010s builds - we isolate and clean each zone separately to prevent cross-contamination.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
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Our equipment roster includes Rotobrush agitation systems, Abatement Technologies negative-pressure machines, and Aprilaire media filters - professional-grade tools customers can verify independently. We stock common replacement components for League City systems, including flex-duct repair sleeves and mastic sealant rated for 140°F attic exposure, so minor repairs don’t require a return trip. For homes with integrated air quality equipment - Honeywell electronic air cleaners, Guardsman UV systems - we coordinate cleaning scope with those components so nothing gets bypassed or damaged.
Common Air Duct Cleaning Problems We See in League City Homes
- Post-Harvey mold in return plenums. In Clear Creek-floodplain subdivisions, technicians routinely pop off return-air grilles and find standing debris and black mold deep inside plenums on homes that were “dried out,” remediated, and relisted without anyone touching the HVAC ductwork. Post-flood duct inspection has effectively become a standard first step on any League City estimate.
- Separated flex-duct seams in 140°F attics. The city’s 1990s-2000s tract homes used flexible duct routed through unconditioned attics. That extreme heat degrades mastic joints over time, pulling hot, fiberglass-laden attic air directly into living spaces. We find this on nearly every older service call.
- Condensation on poorly insulated duct runs. Positioned along the Galveston Bay estuary, League City receives persistent Gulf moisture that keeps dew points elevated even compared to Houston proper. Poorly insulated supply lines sweat during the long cooling season, creating conditions for biological growth that recontaminates coils within months.
- Shared dryer vent stacks in condos and townhomes. Dense League City housing - Bay Colony, Harbour Pointe, South Shore Harbour - often routes dryer vents through a common stack. One clogged unit backs up into neighbors’ units. Cleaning requires coordination with building management and access to the roof or utility chase, not just the individual vent termination.
Pricing for Air Duct Cleaning in League City, TX
A typical full residential duct cleaning in League City runs $380-$680 for a single-system home with 8-12 supply registers and 2-3 return grilles. Post-Harvey mold remediation in return plenums adds $200-$450 depending on contamination depth and whether the plenum liner requires replacement. Commercial systems start at $850 and scale with linear footage and access complexity.
| Service | League City Price Range |
|---|---|
| Full residential system cleaning (single HVAC) | $380-$680 |
| Return duct cleaning with video inspection | $220-$390 |
| Post-flood mold remediation (return plenum) | $200-$450 |
| Evaporator coil cleaning (add-on) | $140-$220 |
| Dryer vent cleaning (single-family) | $120-$180 |
| Commercial duct cleaning | $850-$2,400 |
What moves the number: register count, system accessibility (crawl space vs. attic), whether video inspection reveals separated ductwork requiring repair, and mold remediation scope. Every price is written before work starts, every time, under Haven Standard Clause 1. No per-vent pricing. No add-on surprises after the van is on your drive. Call (346) 253-1822 for a written estimate - estimates are free.
We Also Serve Cities Near League City
Our crews work the full Clear Lake area daily, including League City proper plus Webster, Dickinson, Friendswood, and Seabrook. Scheduling is coordinated from our Houston office, with route density that keeps travel time minimal across this cluster. Same documentation standard, same written pricing, same 365-Day Done Right Promise.
Serving League City, TX - Our Local Coverage Area
We’re based in the League 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 - Air Duct Cleaning in League City
Yes. Ductwork is the most common HVAC component that was never touched during flood remediation in Clear Creek floodplain subdivisions. Return plenums and supply runs often still hold flood silt and active mold colonies, and standard drying equipment doesn’t reach inside sealed ductwork. We start every post-Harvey estimate with video inspection of the return plenum. Call (346) 253-1822 to schedule - estimates are free.
Three local factors: 140°F+ unconditioned attics that degrade flex-duct mastic, persistent Gulf moisture that condenses on poorly insulated runs, and post-Harvey flood contamination that continues degrading plenum liners years after the water receded. Inland suburbs see the heat issue but not the moisture loading or flood history. Call (346) 253-1822 and we’ll show you what your specific system looks like inside.
Not automatically - but we find active mold in roughly 40% of League City estimates, concentrated in flood-affected neighborhoods and homes with chronic condensation issues. Video inspection determines whether standard agitation and negative-pressure extraction suffice, or whether antimicrobial treatment and plenum liner replacement are indicated. The camera shows the difference. Call (346) 253-1822 for a written scope.
We coordinate with building management 48 hours ahead on parking permits, roof access, and utility chase entry. Our Abatement Technologies portable units fit through standard doorways and elevator openings. For shared systems, we isolate each unit’s ductwork with pneumatic dampers before cleaning to prevent debris migration. Schedule through your building or directly - call (346) 253-1822.
Most likely, yes - dense League City housing including Bay Colony, Harbour Pointe, and South Shore Harbour properties typically routes dryer vents through a common vertical stack. Individual unit cleaning without addressing the full stack solves nothing; lint backups reoccur within weeks. We clean the full stack from roof termination to each unit connection, with building management coordination and documentation photos of the stack interior. Call (346) 253-1822 to confirm your building’s configuration.
Ready to see what’s inside your ducts? Call (346) 253-1822. A live person answers 24/7. We’ll schedule video inspection, deliver a written price before any work starts, and leave you with a documented photo record of every duct run - plus the 365-Day Done Right Promise in writing.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving League City under the Haven Standard since 2013.