Whole-home duct cleaning
Dryer vent cleaning
Camera inspection
Sanitizing & deodorizingWhole-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.
Fast, Reliable Air Duct Cleaning Across La Porte
Air duct cleaning in La Porte costs between $350 and $700 for a typical single-family home, depending on system size and how much industrial residue has built up. We schedule most jobs within a week and complete a full-system cleaning in one visit. Call Hollis Air Duct Houston at (713) 936-5800 for a written quote before any work begins.
La Porte homes deal with something most Houston suburbs never see. Ductwork here collects an oily, gray particulate film from petrochemical fallout off the Ship Channel. It clings to duct walls, traps moisture, and shortens the life of your HVAC system. Our crews know exactly what that looks like and what it takes to remove it properly. We live with the same coastal air you do, and we clean for it.
Why Hollis Air Duct Houston Is La Porte’s Preferred Air Duct Cleaning Company
We’ve cleaned ducts in La Porte long enough to know the difference between normal household dust and the dense, sticky residue that settles in homes near Baytown and the refineries. That matters. A crew that treats La Porte ducts like they’re in Katy or Sugar Land will under-agitate and leave the worst of it behind. We don’t.
Every job in La Porte gets a written price before anything starts. That price does not move once our tech is at your door. Our technicians are background-checked and uniformed, and they work by The Garrison Code: show up inside the window, price it in writing, do the job by the book, leave the site clean. Roy Castellanos leads our crews with a simple rule: if you wouldn’t want it in your own home, it doesn’t go in a customer’s.
Phones are answered by a live person 24 hours a day. You won’t reach a voicemail loop or wait until Monday to schedule. Call (713) 936-5800 and a person picks up.
Styles & brands we work with




Air Duct Cleaning Services in La Porte
Air Duct Cleaning Services in La Porte means removing the buildup inside your supply and return duct runs, air handler, blower motor, and evaporator coil. A typical La Porte home needs this every 3 to 5 years, but homes within a few miles of the Ship Channel often need it every 2 to 3. The oily residue from petrochemical fallout bonds to surfaces and holds moisture, which speeds up regrowth after a superficial clean.
We use negative-air machines from Nikro with HEPA filtration and rotary brush agitation from Rotobrush. The brush mechanically breaks the sticky film off duct walls. The negative pressure pulls it out of your home instead of blowing it around. That combination is what actually removes the contaminant. A vacuum alone won’t lift petrochemical film off duct walls.
Full System Cleaning
We clean the entire path air travels: supply ducts, return ducts, air handler, blower motor, evaporator coil, and registers. If you skip any one of those, the system recontaminates within weeks. A La Porte system with a dirty air handler will blow that residue right back into freshly cleaned ducts.

Video Inspection
Before we start and after we finish, we run a camera through your duct runs. You see what the duct walls looked like before and what they look like when we’re done. For homeowners who’ve been burned by a fogging upsell before, this is how you verify the work actually got done.

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.
HVAC Duct Cleaning in La Porte
HVAC Duct Cleaning in La Porte focuses on the mechanical components of your system, not just the visible register covers. The evaporator coil, blower motor, and air handler live in a humid environment all summer. Add the particulate load from nearby industrial activity and these components collect a dense, damp grime that reduces airflow and strains the blower.
We clean the entire HVAC path with equipment suited to coastal contamination. A Honeywell filtration upgrade is worth considering for La Porte homes with persistent industrial dust. But cleaning comes first. A better filter on a dirty system just chokes the airflow further and your electric bill climbs with it.
Supply and Return Duct Cleaning
Supply ducts carry conditioned air out to your rooms. Return ducts pull air back to the air handler. Both collect the same oily film, but returns usually see more because they pull unfiltered air from living spaces. We clean both under negative pressure, so the dust exits through the HEPA filter, not into your living room.
Commercial Duct Cleaning
Retail shops, offices, and medical spaces in La Porte deal with the same industrial particulate load as homes. We schedule commercial jobs around operating hours and provide a written verification of work, including before-and-after video for your records.
Trusted Brands We Service in La Porte
Our crews use professional-grade equipment from Rotobrush, Nikro, and Guardsman on every La Porte job. These are the same tools commercial HVAC crews run, not hardware-store gear. We explain what each piece does in plain terms while we work, so you understand what you’re paying for. If you want to add filtration upgrades from Honeywell, we can install them same visit and explain why they matter for a home this close to industrial air.
Common Air Duct Cleaning Problems We See in La Porte Homes
- Oily gray film on duct walls. In neighborhoods like Bayside Terrace, this residue is a mix of household dust and petrochemical fallout. It won’t vacuum off. It needs mechanical agitation to break the bond before HEPA extraction can remove it.
- Mold growth without visible flooding. High humidity from Galveston Bay condenses inside duct runs, especially where pier-and-beam crawl spaces let moist air rise. Mold feeds on the oily residue, which holds water better than plain dust.
- Blower motors caked with debris. Systems that have never had their air handler cleaned accumulate a layer on the blower wheel. The fan has to work harder, airflow drops, and the far bedrooms never cool right in August.
- Pier-and-beam contamination cycles. Crawl spaces with exposed soil keep recontaminating cleaned ducts. If you don’t address the moisture and intrusion pathway, a clean system can be dirty again within a single humid season.
In Bayside Terrace, our crew opened the supply registers of a 1960s pier-and-beam home and found the duct runs coated in that signature oily gray dust. Using Rotobrush agitation tools with HEPA-filtered negative pressure, we pulled out a mix of industrial fallout and household lint that had bonded to the duct walls. Because the home had never had its air handler cleaned, we also removed a layer of debris from the blower motor and evaporator coil, restoring airflow to the far bedroom that had been suffocating for years.
See the difference
Before
After
Before
After
Before
AfterPricing for Air Duct Cleaning in La Porte, TX
A typical single-family home in La Porte runs $350 to $700 for a complete system cleaning. Homes over 2,500 square feet or with heavily contaminated ductwork fall between $600 and $900. Commercial spaces are quoted per project after an inspection. These are whole-system prices, not per-vent teaser rates. The price we write down before work starts is the price you pay. No one adds on fees once the equipment is in your home.
What changes the cost is system size, number of returns, accessibility, and how much residue has built up. A 1970s rancher near Spencer Highway with original ductwork and a dirty air handler costs more than a 1990s home that’s been cleaned before. Call (713) 936-5800 for a free, written estimate. We’ll tell you the price before you commit to anything.
We Also Serve Cities Near La Porte
Our Air Duct Cleaning crews cover La Porte and the surrounding communities. If you’re in Baytown, Seabrook, Webster, or League City, we schedule the same way: written price first, uniformed tech on time, job done to The Garrison Standard. Same live-person phone line at (713) 936-5800. Same 365-Day Done Right Promise in writing. Air Duct Cleaning in La Porte is what this page covers, but the standard doesn’t change at the city line.
Serving La Porte, TX - Our Local Coverage Area
We’re based in the La Porte 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 La Porte
La Porte sits close to the Houston Ship Channel and a dense cluster of petrochemical facilities. The airborne particulate from those operations settles into homes and bonds with household dust inside ductwork. It forms an oily film that traps more dust and moisture, so the system loads up faster than in suburbs farther from industrial activity. Most La Porte homes need cleaning every 2 to 4 years, not the 5 to 7 you’ll hear quoted for the metro as a whole. Call (713) 936-5800 and we’ll tell you what we typically find in homes near yours.
No. Fogging sprays a sanitizer mist through the ducts and kills surface microbes temporarily, but it does not remove the oily dust and particulate film that the microbes feed on. Within weeks, humidity from Galveston Bay rehydrates that residue and the mold and bacteria regrow. A proper clean uses mechanical agitation to break the residue off the duct walls, then negative-pressure HEPA extraction to remove it from the home entirely. If someone quotes you just a fogging job, ask them what they’re doing about the petrochemical film. Call (713) 936-5800 for a quote that includes real source removal.
Yes. The humid subtropical air keeps relative humidity high most of the year. Inside duct runs, that moisture condenses on dust and the oily residue from nearby industrial emissions. Mold grows on that wet, organic material even if your home has never flooded. Homes on pier-and-beam foundations are at higher risk because moisture from the soil rises into the crawl space and gets pulled into the return ducts. We inspect duct interiors for moisture and microbial growth as part of every La Porte job. Call (713) 936-5800 for a free assessment.
Every 2 to 3 years. Homes from that era in La Porte typically have original ductwork that was not sealed to modern standards. The combination of aging ducts, pier-and-beam foundations, high coastal humidity, and industrial particulate means they load up faster than newer construction. If your 1970s home has never had its ducts cleaned, the first cleaning will likely reveal significant buildup. Schedule the first one, then reassess after two years based on what we found. Get a written quote at (713) 936-5800.
That oily gray film is a mixture of household lint, dander, and petrochemical fallout from the Ship Channel and nearby refinery operations. The oiliness comes from the industrial emissions that settle into homes. It is not normal household dust, and it won’t vacuum out with standard equipment. Whether it’s dangerous depends on the specific composition and how long it’s been accumulating, but it absolutely degrades indoor air quality and provides a food source for microbial growth. A proper source removal with Rotobrush agitation and HEPA negative pressure will lift it out. Call (713) 936-5800 and we’ll show you exactly what’s in your ducts with a video inspection before and after.
Call Hollis Air Duct Houston for Air Duct Cleaning in La Porte
La Porte homes need a different kind of duct cleaning than the rest of Houston. We know that because we’ve been doing this since 2004, and we’ve seen what the Ship Channel air leaves behind. When you call (713) 936-5800, you’ll get a live person, a straight answer, and a written price before any work starts. Every job is covered by the 365-Day Done Right Promise. If something isn’t right within a year, we come back and make it right at no charge. That’s not a vague guarantee. It’s in writing, on every job.
Written by Roy Castellanos, Owner at Hollis Air Duct Houston, serving La Porte and the Houston metro since 2004.