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.
Before
After
Before
After
Before
AfterAir Duct Cleaning in League City, TX
HVAC cleaning in League City typically runs $380-$620 for a full system, and most jobs require addressing both the evaporator coil and the ductwork because Gulf moisture makes partial cleaning ineffective here. We dispatch crews from our Houston office to serve League City homeowners with documented photo records on every visit. Call (346) 253-1822 for a written estimate before any work starts.
Why League City Homes Are Different
League City’s housing boom from the late 1980s through the 2000s filled the city with tract homes built with flexible duct systems routed through unconditioned attics. Those attics routinely exceed 140°F in summer, degrading flex-duct connections and mastic joints until separated seams pull hot, fiberglass-laden attic air directly into living spaces. We find this failure mode on nearly every older service call here.
The city’s position between Galveston Bay and Clear Lake keeps relative humidity persistently higher than inland Houston suburbs. Hurricane Harvey inundated neighborhoods along the Clear Creek floodplain in 2017, and a significant share of 1990s-2000s homes had ductwork that absorbed floodwater moisture. In floodplain subdivisions, we routinely pop off return-air grilles and find standing debris and black mold deep inside plenums on homes that were dried out and relisted without anyone touching the HVAC ductwork. Post-flood duct inspection has become a standard first step on any League City estimate.
Our Main League City Services
Most League City calls fall into three categories: duct cleaning for routine maintenance or post-flood concerns, dryer vent cleaning for safety and efficiency, and duct repair for separated seams and flood damage.
Air Duct Cleaning in League City
We clean the full duct system with negative-pressure extraction, photographing every run before and after. In League City, this almost always includes addressing biological growth in the plenum due to Gulf moisture. Every job gets a written price before work starts and a 365-Day Done Right Promise backed in writing. Air Duct Cleaning in League City covers our full process.
Dryer Vent Cleaning in League City
Lint accumulation accelerates in humid coastal air, and longer vent runs common in League City’s 2000s-era homes compound the problem. We clear the full run from appliance to termination, verify airflow with a meter, and document the before-and-after condition. Dryer Vent Cleaning in League City includes our flat-rate pricing structure.
Duct Repair & Sealing in League City
Separated flex-duct seams, flood-damaged insulation, and degraded mastic joints are the standard finds here. We replace damaged sections, seal connections with proper materials, and pressure-test the system before closing. Duct Repair & Sealing in League City details our repair scope.
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.
BeforeAfterHVAC Cleaning in League City
Full HVAC Cleaning in League City means addressing the evaporator coil, blower assembly, and condenser as an integrated system because Gulf moisture causes rapid recontamination when any component is skipped. The city’s 1990s-2000s tract homes with attic ductwork create a specific pattern: coils fouled with biological growth distribute spores through separated duct seams, and cleaning one without the other wastes the customer’s money. We photograph every component before and after, deliver a written scope, and back the work with our 365-Day Done Right Promise.
Evaporator Coil Cleaning
Signs you need it
Ice buildup on refrigerant lines, musty airflow from registers, or cooling that cannot keep up with the thermostat in League City’s long humid season.
What it costs in League City
Evaporator coil cleaning typically runs $180-$340 as a standalone service.
How we do it
We access the coil through the plenum, apply foaming cleaner, rinse with low-pressure water, and photograph the full surface before reassembly.
Blower Cleaning
Signs you need it
Vibration at startup, reduced airflow at registers, or dust streaks on the blower housing visible when the filter is removed.
What it costs in League City
Blower cleaning typically runs $140-$260.
How we do it
We remove the blower assembly, clean the wheel and housing with compressed air and solvent, balance the wheel, and document runout with a photo.
What HVAC Cleaning Costs in League City
| Item | Typical range in League City |
|---|---|
| Evaporator coil cleaning | $180-$340 |
| Blower cleaning | $140-$260 |
| Full HVAC system cleaning (coil + blower + condenser) | $380-$620 |
How do I know my HVAC was actually cleaned?
Every component is photographed before and after, and you receive the photo record as a standard deliverable with your written invoice. If a company cannot show you the inside of your own blower housing, the work is unverified.
Why does my coil get dirty again so fast?
In League City’s humid climate, a dirty duct system reinoculates the coil with spores and debris; we address both together to break the cycle. Call (346) 253-1822 for an exact quote - estimates are free.
Air Quality & Sanitizing in League City
Air Quality & Sanitizing in League City addresses a specific coastal problem: persistent Gulf moisture keeps dew points elevated even compared to Houston proper, making condensation on poorly insulated duct runs a near-constant risk. In Harvey-affected neighborhoods along Clear Creek, we find active mold colonies in plenums on homes that passed general remediation without HVAC inspection. Our treatments target the biological load with documented before-and-after verification, not masking agents.
Mold Treatment
Signs you need it
Visible black or green growth on register grilles, musty odor that intensifies when the system cycles on, or post-flood occupancy without duct inspection.
What it costs in League City
Mold treatment typically runs $280-$480 depending on plenum access and contamination extent.
How we do it
We apply an EPA-registered antimicrobial to affected surfaces, run negative-pressure extraction during treatment, and deliver post-treatment lab or photo verification.
UV Light Installation
Signs you need it
Recurring coil fouling despite cleaning, allergy symptoms that spike with HVAC use, or a home in a high-humidity floodplain area.
What it costs in League City
UV light installation typically runs $320-$520 including the lamp and electrical connection.
How we do it
We mount a UV-C lamp in the supply plenum, wire to the blower circuit for synchronized operation, and verify irradiance at the coil surface.
What Air Quality & Sanitizing Costs in League City
| Item | Typical range in League City |
|---|---|
| Mold treatment | $280-$480 |
| UV light installation | $320-$520 |
| Full air quality package (treatment + UV + filter upgrade) | $580-$920 |
Is mold treatment safe for my family?
We use EPA-registered products applied with negative-pressure containment, and the system remains offline until clearance is verified; no occupant exposure occurs during treatment.
How long does UV light last?
Lamps typically maintain effective output for 9,000-12,000 hours, and we include replacement scheduling in the installation documentation. Call (346) 253-1822 for an exact quote - estimates are free.
Brands We Service in League City
We stock parts and service equipment from Aprilaire, Abatement Technologies, Guardsman, and Rotobrush, with most common filters, UV lamps, and antimicrobial treatments available without ordering delay. our brands lists the full equipment roster.
Pricing for Air Duct Cleaning in League City, TX
| Service | Typical range in League City |
|---|---|
| Air duct cleaning (whole system) | $320-$580 |
| Dryer vent cleaning | $120-$220 |
| Evaporator coil cleaning | $180-$340 |
| Blower cleaning | $140-$260 |
| Full HVAC system cleaning | $380-$620 |
| Duct repair & sealing (per system) | $240-$480 |
| Mold treatment | $280-$480 |
| UV light installation | $320-$520 |
Prices increase with system size, accessibility issues in tight League City attics, and post-flood contamination requiring extended remediation. Every price is written and agreed before any work starts, per Haven Standard Clause 1.
Neighborhoods We Serve in League City
We serve League City from the Clear Creek floodplain to the newer developments near Highway 96, with crews dispatched from our Houston office. Most League City appointments are scheduled within a few business days.
- Clear Creek Country
- South Shore Harbour
- Magnolia Creek
- Creekside
- Westover Park
Service Area - Cities Near League City
Our crews cover the full Clear Lake and Bay Area corridor, including Webster, TX to the north, Dickinson, TX to the east, Friendswood, TX to the northwest, and Seabrook, TX along the bayfront. Scheduling is coordinated from our Houston office for all locations.
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
Standard residential duct cleaning does not require a permit in League City; duct modifications or full system replacements may trigger permit requirements through the city’s building department, and we handle any necessary documentation as part of the job scope.
Most League City homeowners receive an appointment within 2-4 business days; post-flood inspections and mold concerns are prioritized based on severity. Call (346) 253-1822 for current availability.
We work in HOA-governed communities throughout League City and follow any access or parking protocols your association requires; our technicians arrive in marked vehicles with identification provided before arrival, per Haven Standard Clause 3: Verified Crews.
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 League 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."They found a disconnected duct in the crawl space that had been dumping conditioned air under the house for years. Photographed it, quoted the repair, fixed it."
- Devon A.