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
AfterFast, Reliable HVAC Cleaning Across South Houston
HVAC cleaning in South Houston typically costs $349 – $689 for a complete system, including furnace duct cleaning, AC coil cleaning, blower cleaning, and air handler cleaning. We serve every neighborhood off Winkler Drive, Galveston Road, Spencer Highway, and Allen-Genoa Road. Our HVAC Cleaning team covers South Houston weekly. You’ll get a written flat price before any work starts, and a live person answers at (737) 727-2314 whenever you call.
Why Cardinal Air Duct Cleaning Is South Houston’s Preferred HVAC Cleaning Company
South Houston homeowners put up with a lot from their HVAC systems. The humidity off the Gulf pushes air conditioners to run nearly year-round here, and the 1950s through 1970s ranch homes that dominate the city were built with duct layouts that were never designed for that kind of load. That means dust, lint, and the kind of biological growth that thrives in warm, damp air handlers pile up faster in South Houston than in drier parts of the metro.
We’re part of the Relay Home Co. family, founded 2005, and every location operates under The Relay Visibility Guarantee. For you, that means a live trackable arrival window, before-and-after photo documentation of your own ducts, and a digital invoice you can pay by link. Omar Haddad leads the team that dispatches to South Houston from our Houston office. You’ll know the technician’s name before they knock.
Our South Houston customers consistently tell us the same thing: nobody else gave them a written price before touching the system, and nobody else showed them photos proving the work was actually done. That’s exactly why we built our process this way.
Furnace Duct Cleaning in South Houston
Furnace Duct Cleaning in South Houston means clearing the supply and return ducts that carry heated air from your furnace through the house. In this city, many of those ducts are original flex or sheet metal from the 1950s and 1960s, and they’ve spent decades in unsealed, semi-conditioned attics. Rodent activity, roach intrusion, and years of Gulf-humidity dust make these systems genuinely worth cleaning, not just a nice-to-have.
A standard furnace duct cleaning for a South Houston ranch home runs $349 – $549, depending on the number of returns and the condition of the duct lining. We don’t charge per vent. One flat price per system, written and agreed before the Rotobrush or Nikro equipment even comes off the truck.
Source removal with negative pressure
We don’t just knock dust loose and hope for the best. Our techs run agitation tools through the ductwork while a HEPA-filtered vacuum maintains negative pressure. That means loosened debris goes directly into the containment unit, not back into your living room. For South Houston homes with pier-and-beam foundations, we also address return ducts that run through crawlspaces where rodent droppings and moisture are common.
When furnace ducts need attention
You’ll see it in the register grilles first: gray fuzz around the fins, dust streaks on the walls above the vents, or a billow of dust when the heat first kicks on in December. If your furnace blower has been running for years without a cleaning, the blower motor itself may be caked, which shortens its life and strains the system.
AC Coil Cleaning in South Houston
AC Coil Cleaning in South Houston addresses the evaporator coil inside the air handler and, where accessible, the condenser coil outside. In South Houston, the evaporator coil is a magnet for the kind of biological growth that thrives when warm Gulf air passes over cold metal for eight months a year. A dirty coil reduces heat transfer, raises energy bills, and eventually causes freezing or short-cycling.
Coil cleaning in South Houston runs $180 – $340 for the evaporator coil and $120 – $250 for the condenser coil, depending on access and buildup. We quote it as part of a full HVAC cleaning or as a standalone service. Either way, the price is written before we start.
Evaporator coil and blower cleaning
When we pull the air handler panel on a typical South Houston home, it’s not unusual to find the evaporator coil matted with gray lint and the blower fins coated in dust. We clean the coil with proper coil cleaner, rinse and verify drainage, then clean the blower motor and housing. The difference in airflow is measurable. Homeowners near College Park and South Houston Gardens tell us the registers push harder and the system runs noticeably less.
Coil treatment for South Houston humidity
After cleaning, we can apply a coil treatment that slows regrowth in high-humidity environments. It’s not a miracle product, but in South Houston’s climate it genuinely helps keep the coil cleaner longer. We don’t push it on every job. We mention it when the conditions call for it.
Trusted Brands We Service in South Houston
We clean and service systems built around Honeywell, Aprilaire, Carrier, Lennox, Trane, and Rheem components, and our equipment fleet runs on Nikro HEPA vacuums, Rotobrush agitation tools, and Abatement Technologies containment units. We don’t use truck-mounted shop-vac shortcuts. Our techs carry the filters and treatment products that match South Houston’s humidity profile, and because we keep common replacement parts stocked, most repairs happen the same visit.
Common HVAC Cleaning Problems We See in South Houston Homes
- Short-cycling and musty odors from unsealed attics. The original flex duct in a 1960s South Houston ranch has almost certainly been compromised by heat, humidity, or rodents. Air bypasses the filter and the coil loads up with biological growth.
- Return ducts pulling from pier-and-beam crawlspaces. Homes on Winkler Drive and Allen-Genoa Road often have returns running under the floor. If the duct lining tears, it’s pulling crawlspace air, roach debris, and rodent droppings into the house.
- Dust caked on blower motors from year-round AC use. The system runs most of the year here, and the blower never gets a break. Built-up dust causes imbalance, bearing wear, and reduced airflow.
- Visible dust streaks above supply registers. That’s a sign the duct interior is shedding. It’s not a cleaning issue you can solve with a better filter. The source has to be removed.
Pricing for HVAC Cleaning in South Houston, TX
Here’s what we actually charge in South Houston. A complete HVAC cleaning including furnace duct cleaning, evaporator coil cleaning, blower cleaning, and air handler cleaning runs $349 – $689 for a standard single-family home. Evaporator coil cleaning alone is $180 – $340. Condenser cleaning is $120 – $250. The price is one flat rate per system, written before we start, and it doesn’t change at the door. No per-vent pricing. No surprise line items. Call (737) 727-2314 for a free estimate.
We Also Serve Cities Near South Houston
Our routes reach well beyond South Houston’s city limits. If you’re searching for HVAC Cleaning in South Houston but live just outside, we regularly serve Pasadena, Galena Park, Deer Park, and Pearland. Same flat pricing, same written guarantee.
Serving South Houston, TX - Our Local Coverage Area
We’re based in the South Houston 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 HVAC Cleaning in South Houston
Every 3 to 5 years is realistic for most South Houston homes. The Gulf humidity and year-round AC use mean air handlers and coils load up with dust and biological growth faster here than in drier climates. If you’ve never had it done and the home was built before 1980, start with a camera inspection. We do those as part of the estimate. Call (737) 727-2314 to schedule one.
One flat price per system, written before we start. We don’t do per-vent pricing, because that’s exactly how South Houston homeowners get burned with a $49 “special” that turns into a $900 invoice once the crew counts registers. Our price covers the full system: supply ducts, return ducts, air handler, blower, and coil. You sign off on the number before anything gets touched.
Yes. Every job includes before-and-after photo documentation of your ductwork, shown on our tech’s tablet before they leave. This is part of The Relay Standard booking experience. You see exactly what was pulled out and what the ducts look like after. If you can’t tell the difference, we haven’t finished.
Yes, if the smell is coming from biological growth on the evaporator coil or debris inside the ducts. HVAC Cleaning with coil treatment removes the growth and the odor source. If the smell comes from a mouse nest in the return or a dead rodent in the duct, we’ll find it during the camera inspection and tell you plainly. Call (737) 727-2314 for an exact quote.
We don’t promise same-day service, because a proper HVAC cleaning is a scheduled, multi-hour job. What we do offer is a live trackable arrival window and a live person on the phone 24/7. Omar Haddad’s team dispatches from our Houston office across South Houston every week, and most customers get on the schedule within a few days. Call (737) 727-2314 to find the next available slot.
If your system is short-cycling, pushing musty air, or you just want a real camera inspection of what’s inside your ducts, call Cardinal Air Duct Cleaning at (737) 727-2314. Written price before any work starts. Before-and-after photos of your own ducts. One flat rate for the whole system.
Written by Omar Haddad, Owner at Cardinal Air Duct Cleaning, serving South Houston through the Relay Home Co. family since 2005.