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 $350-$650 for a complete residential system and $800-$1,800 for commercial properties, with most jobs scheduled within a few business days. Morton’s Air Duct Cleaning dispatches crews from our Houston office to serve League City directly, and we’ve worked the subdivisions from Tuscan Lakes to South Shore Harbour enough times to know what hides in those original builder-grade flex runs. Call (323) 918-4345 for a free written estimate before any work starts.
We’re the Air Duct Cleaning team that families in League City call when they’ve already had one bad experience, a crew that stirred up dust and left without showing what got pulled out. Our approach is different. We explain what we’ll do, walk you through the price on paper, then show you the photo of your clean ducts before we pack up. That’s the Cedarwell Care Promise, and it’s how we’ve worked since 2005.
Why Morton’s Air Duct Cleaning Is League City’s Preferred Air Duct Cleaning Company
League City homeowners know their homes. They know which rooms never cool evenly, which closets smell musty when the AC kicks on, and which vents blew fine silt after the last flood season. We listen for those details because they tell us where to look first.
Our crews serve League City regularly enough that we recognize the flex duct layouts in Tuscan Lakes, Westover Park, and Magnolia Creek without pulling attic access panels. We’ve found crushed runs above garage ceilings in South Shore Harbour, loose collars pulling 140°F attic air into supply lines near Calder Road, and Harvey silt still caked in return boots that other companies vacuumed at the register and called clean.
Every technician is background-checked, arrives in uniform, and carries shoe covers and drop cloths for your floors. We work quiet when there’s a toddler napping. We choose pet-safe products where they’re available. And a live person answers our phone 24/7, not a voicemail tree.
The 365-Day Done Right Promise backs every job. If something isn’t right, we make it right. Full stop. No expiration anxiety, no fine print.
Ductwork Cleaning in League City
Ductwork Cleaning in League City means source removal from the entire HVAC distribution system, not just vacuuming visible registers. Because League City’s housing stock is concentrated in 1990s-2010s master-planned subdivisions like Tuscan Lakes, South Shore Harbour, Westover Park, and Magnolia Creek, most duct systems here are original builder-grade flex routed through attics that routinely exceed 140°F in summer. That combination of extreme attic heat and Gulf Coast humidity is why we find inner-liner degradation and sagging runs at the 15-25 year mark far more often than in older inner-loop Houston neighborhoods with shorter, more accessible duct runs. A typical residential Ductwork Cleaning in League City runs $350-$650 depending on system size and contamination level.
What the Process Actually Involves
We establish negative pressure at the air handler using a Nikro or Abatement Technologies HEPA-filtered collection unit, then agitate contamination loose with Rotobrush contact cleaning tools or compressed air whips. Every vent cover comes off. We clean the return boot, the supply plenum, and the main trunk lines. In League City homes near Clear Creek, we pay special attention to low-point sags where floodwater wicked into flex runs and left silt residue that standard surface cleaning misses.
When Your League City Home Needs It
Schedule Ductwork Cleaning when you notice uneven airflow between rooms, visible dust puffing from vents at startup, or a persistent musty smell that changes with the AC cycle. In League City’s climate, with dewpoints above 75°F from April through October, any duct leakage into a hot attic introduces moisture-laden air that accelerates mold colonization inside insulated flex lines. Waiting until symptoms worsen usually means the contamination has spread past the point where cleaning alone solves the problem.
Air Duct Inspection in League City
Air Duct Inspection in League City uses video camera equipment to document the actual condition inside your ductwork before any cleaning decision gets made. Given that most League City homes in our service area sit on original 15-25 year old flex duct systems in 140°F+ attics, we consider camera inspection essential, not optional. A residential Air Duct Inspection in League City typically costs $150-$250 and includes a full written report with photo documentation.
What We Document
Our techs feed a lighted camera through the supply and return lines to record inner-liner condition, sagging runs, crushed sections, and any visible microbial growth. We note loose collars, unsealed plenum joints, and points where attic air is being drawn into the system. In subdivisions like Westover Park and Magnolia Creek, we routinely find disconnected flex runs that homeowners never knew existed, quietly pulling hot, humid attic air into their living spaces for years.
When Inspection Saves You Money
An Air Duct Inspection prevents paying for cleaning that cannot work. If your flex duct inner liner is degraded, no amount of agitation will restore it to NADCA-acceptable condition, and we tell you that before quoting a cleaning that would waste your money. We also catch situations where the real problem is a loose collar at the air handler or a disconnected return boot, fixes that cost far less than full system replacement but require access and sealing work, not just vacuuming.
Trusted Brands We Service in League City
Morton’s Air Duct Cleaning works with professional-grade equipment from Rotobrush, Nikro, Aprilaire, and Abatement Technologies, not rental-shop vacuums with duct attachments. Rotobrush contact cleaning heads scrub contamination loose from duct walls while HEPA filtration captures it. Aprilaire media filters and Honeywell electronic air cleaners integrate with the duct systems we clean. For League City homes with persistent humidity issues, we stock Guardsman antimicrobial treatments and can recommend Aprilaire whole-home dehumidifiers that work with your existing HVAC. Parts and supplies are kept at our Houston office, so most League City jobs need no ordering delay.
Common Air Duct Cleaning Problems We See in League City Homes
- Harvey silt still trapped in low-point flex sags. In Tuscan Lakes, we opened up a return boot that a homeowner had been told was “dried out” after Harvey and found silt still caked at the low-point sag of the flex run, with visible mold along the inner liner. Our tech used agitation tools and HEPA filtration under negative pressure to do true source removal, then sealed the loose collar at the air handler where attic air was being pulled into the supply and return ducts. The MERV rating on the filter had been too low to catch the fine silt, so we upgraded it and the homeowner’s recurring musty smell finally cleared.
- Inner-liner degradation on 15-25 year old flex duct. The plastic inner liner of builder-grade flex installed in the 2000s becomes brittle and porous in League City’s extreme attic heat. Contamination adheres to the degraded surface where standard cleaning cannot fully remove it. We flag this during inspection so you know whether cleaning will meet NADCA standards or if section replacement is the honest recommendation.
- Loose collars and unsealed plenum joints pulling humid attic air. Every time the blower cycles, negative pressure draws 140°F, moisture-laden Gulf Coast air through gaps at the air handler connection. We find this constantly in Calder Road and Highway 518 corridor homes. Cleaning without sealing these points means the contamination source remains active.
- Crushed or disconnected flex runs hidden above garage ceilings or behind insulation. Original builder installs in South Shore Harbour and Magnolia Creek often routed flex through tight spaces where settling or storage activity has flattened or pulled apart the duct. No register vacuuming finds this. Camera inspection does.
Pricing for Air Duct Cleaning in League City, TX
Most League City homeowners pay between $350 and $650 for complete residential duct cleaning covering supply ducts, return ducts, and the main trunk lines. Commercial systems in League City office parks or retail spaces along I-45 typically run $800-$1,800 depending on square footage and system complexity. Air Duct Inspection alone costs $150-$250 and includes photo documentation.
What moves the price: system size (number of vents and returns), contamination level (light household dust versus post-flood silt and mold), accessibility (crawl space versus attic work), and whether we find conditions requiring repair or sealing beyond standard cleaning. We give you one flat price per system, agreed in writing before work starts. No per-vent add-ons. No surprises when the invoice arrives.
Every estimate is free. Call (323) 918-4345 and we’ll schedule a time that works around your family’s routine.
We Also Serve Cities Near League City
Morton’s Air Duct Cleaning regularly dispatches crews to Webster, Kemah, Dickinson, and Friendswood from our Houston office. Whether you’re in a waterfront home near Kemah Boardwalk or a subdivision off FM 518 in Friendswood, the same Cedarwell Care Promise applies: written price upfront, background-checked uniformed techs, and a photo of your clean system before we leave.
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 About Air Duct Cleaning in League City
League City sits directly in the Clear Creek watershed and experienced repeated catastrophic flooding, the 2015 Tax Day flood, the 2016 Memorial Day flood, and Hurricane Harvey in 2017, leaving a significant share of the housing stock with ductwork that was either submerged or exposed to extreme post-flood humidity. Combined with the area’s persistent Gulf Coast marine air pushing indoor relative humidity well above the mold-growth threshold, duct systems here carry a measurably higher risk of microbial contamination than in comparable inland Houston suburbs, making air duct cleaning a genuine remediation need rather than routine maintenance. If your home is near Calder Road or the Highway 518 corridor and you smell mustiness when the AC cycles, call (323) 918-4345 for an inspection.
Yes, and here’s why. Most 2000s-era League City subdivisions used builder-grade flex duct routed through unconditioned attics. At 15-25 years old, that flex is hitting the age where inner-liner degradation, sagging runs, and loose collars are common. A camera inspection finds crushed or disconnected sections that register vacuuming would never reveal, and it documents whether the duct is cleanable to NADCA standards or needs section replacement. The $150-$250 inspection cost often saves homeowners from paying for cleaning that cannot work. Call (323) 918-4345 to schedule.
NADCA, the National Air Duct Cleaners Association, sets the industry standard for source removal, meaning contamination must be dislodged and captured at the point of generation, not just moved around. Negative pressure means we hook a powerful HEPA-filtered collection unit to your air handler so the entire system is under vacuum while we work. This prevents the silt, mold spores, and fine particulate in your League City ducts from escaping into your living space during cleaning. Any company that skips negative pressure is stirring up what you’re paying them to remove. Call (323) 918-4345 and we’ll explain how we set this up on your specific system.
The smell is likely coming from a loose collar or unsealed plenum joint at the air handler itself, pulling humid Gulf Coast attic air into the return side every time the blower cycles. In League City’s climate, that attic air carries enough moisture to re-wet surfaces that were just cleaned, restarting mold growth within weeks. We see this constantly in homes where a previous cleaner vacuumed the registers but never accessed the air handler cabinet. Our inspection includes the plenum and collar connections, and we seal what we find as part of the job, not as an extra charge. Call (323) 918-4345 if your closet still smells after a previous cleaning.
For League City homes without flood history or known contamination, every 5-7 years is reasonable maintenance given the area’s high humidity and pollen loads. Homes near Clear Creek with any flood exposure, or any home with original 2000s flex duct showing uneven airflow or musty odors, should start with an inspection to determine whether cleaning or repair is needed now. After any major weather event that introduced moisture to the system, inspection within the same season is prudent. Call (323) 918-4345 for a free estimate and we’ll give you a schedule based on your home’s actual condition.
Written by Paul Adeyemi, Owner at Morton’s Air Duct Cleaning, serving League City since 2005.