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.
Fast, Reliable HVAC Cleaning Across Canyon Lake
HVAC cleaning in Canyon Lake, TX typically runs $450 – $900 for a full system cleaning, and most jobs are completed in 3 – 5 hours. We cover every neighborhood from Startzville to the peninsula, and our crews arrive with written pricing before any work begins. If you’re noticing dust at your registers or a musty smell when the AC kicks on, call (737) 727-2314 and we’ll walk through what’s actually going on.
Canyon Lake sits on limestone, and that changes what builds up inside your ducts. Fine calcium-rich dust settles differently than the clay-heavy grit you’d find over in New Braunfels or San Marcos. Add lake humidity to the equation and you get a very specific type of buildup that requires more than a quick register vacuum. We know what that means for your system because we work in these homes every week.
Why Cardinal Air Duct Cleaning Is Canyon Lake’s Preferred HVAC Cleaning Company
We’re part of the Relay Home Co. family, founded in 2005, and every job we run follows The Relay Standard: a live trackable arrival window, before-and-after photo documentation, and a digital invoice you can pay from your phone. No paper clipboards, no vague four-hour windows, no wondering who’s actually showing up.
Canyon Lake homeowners consistently tell us the same thing: they’ve been burned by crews that quoted low, showed up late, and left them with a bigger bill and no proof the work was done. Our HVAC Cleaning team operates differently. You get a written price before a single duct is touched, and that price doesn’t change at the door. The technician’s name, photo, and background check are visible before they arrive.
Every job includes the 365-Day Done Right Promise. If the work isn’t right within a full year, we return and correct it at no charge. That’s not a warranty on paper. It’s a standing offer that applies to every booking, no exceptions, no fine print.
Furnace Cleaning in Canyon Lake
Furnace cleaning in Canyon Lake isn’t a seasonal luxury, it’s how you keep limestone dust from baking onto your heat exchanger and circulating through the house every winter. Most furnaces here pull return air through filter grilles that haven’t been sealed properly against attic dust, and the blower motor grinds that fine powder into every duct run. Our furnace cleaning includes the heat exchanger, blower assembly, return plenum, and supply ducts. A standard furnace cleaning in Canyon Lake runs $180 – $340 as a standalone service, depending on system size and how much buildup has accumulated.
Blower and Heat Exchanger Service
We pull the blower wheel, clean each blade, and inspect the heat exchanger for hairline cracks that indicate burner inefficiency. A dirty blower wheel can reduce airflow by up to 30%, which means your furnace runs longer and hotter for the same thermostat setting. On Canyon Lake’s limestone-heavy air, that’s a compounding problem.
Return Plenum Sealing
Many Canyon Lake homes have return plenums made from plywood or unfiltered attic air gaps. We inspect, clean, and seal those surfaces so the air your furnace reheats is the air you want in your lungs, not what’s been sitting in your attic. This step alone cuts the amount of dust reaching your supply registers dramatically.
For a furnace cleaning quote specific to your square footage and system layout, call (737) 727-2314 and we’ll give you a flat price before we schedule anything.
AC Vent Cleaning in Canyon Lake
AC vent cleaning in Canyon Lake addresses the supply and return registers, the branch ducts behind them, and the air handler cabinet where moisture from the lake air promotes mildew growth. Homeowners off FM 2673 and near the water see this in early summer: the first few AC cycles blow out a damp, musty smell. That’s mildew in the return ductwork, and it won’t fix itself. Vent cleaning in Canyon Lake runs $200 – $450 for a complete supply and return side cleaning, including register removal, agitation, and HEPA vacuum extraction.
Supply Register Cleaning
We remove each supply register, clean the vanes, and use Rotobrush agitation tools to dislodge the calcium-rich dust that clings to duct walls. Negative-pressure extraction, meaning the loosened debris goes straight into our Nikro HEPA vacuum, not back into your living room. Then we clean the register itself and reinstall it.
Air Handler and Condenser Cleaning
If your condenser coils are caked with limestone dust and cottonwood debris from the lake, your AC works harder than it should. We clean the coil fins, clear the condensate drain line, and inspect the air handler for standing moisture. A clean coil means lower amp draw, which means lower summer electric bills. And here, with eight months of cooling, that adds up.
Call (737) 727-2314 for a flat AC vent cleaning price based on your system count.
Trusted Brands We Service in Canyon Lake
We work on every major furnace and AC brand found in Canyon Lake homes: Carrier, Trane, Lennox, Goodman, Rheem, and older Broan and York systems still running off the lake. Our techs stock common filters and coil cleaners matched to MERV ratings from Guardsman and Aprilaire, so we’re not running to a supply house mid-job. If your system needs a part during cleaning, especially an older unit off the beaten path near Startzville or the peninsula, we’ll tell you before we touch it. No surprise part charges. That’s a fast turnaround for Canyon Lake customers and it’s part of how we run service calls.
Common HVAC Cleaning Problems We See in Canyon Lake Homes
- Fine limestone dust accumulation. Canyon Lake sits on the Edwards Aquifer recharge zone, and the limestone plateau produces a fine, calcium-heavy dust that gets pulled into return ducts and coats blower motors and coil fins. It’s not the same as clay dust in neighboring towns, and it requires HEPA extraction to remove fully.
- Lake humidity mildew in return ducts. Homes near the water, especially those with two-system configurations, often develop mildew in the return side. This is a source removal problem, not a register vacuum problem. Camera inspection shows exactly where the growth is, and negative pressure removes it at the source.
- Older Broan air handlers pulling attic dust. Two-system homes off FM 2673 near Startzville frequently have older air handlers with poorly sealed return plenums. The result is a rusty film on supply registers and dust re-entering the home within weeks of a basic cleaning.
- Per-vent pricing bait and switch. Some crews quote a low per-vent price and then inflate the total once they see the home has two systems or long duct runs. We quote one flat price per system before we start, and that price is based on the system’s actual size and condition.
Pricing for HVAC Cleaning in Canyon Lake, TX
Here’s what we see in Canyon Lake’s market. A single-system HVAC cleaning, including the evaporator coil, blower, air handler, and all supply and return ducts, typically runs $450 – $700. A two-system home on the peninsula or near Startzville runs $700 – $950. Furnace-only cleaning runs $180 – $340. AC vent cleaning alone runs $200 – $450. What changes the price: how many HVAC units your home has, how accessible the ductwork is (crawlspace vs. attic), and how much buildup is present. Older homes with two systems and long supply runs sit at the higher end. Newer single-system homes sit lower. We never quote per vent because per-vent pricing hides the true total. You get one flat price per system before work begins. To get your price, call (737) 727-2314. Estimates are free.
We Also Serve Cities Near Canyon Lake
Our HVAC Cleaning in Canyon Lake coverage extends to the surrounding communities. We regularly work in New Braunfels, Bulverde, San Marcos, and Schertz. If you’re on the northwest side of the lake or further up FM 306, give us a call and we’ll confirm coverage and give you a flat quote for your system.
Serving Canyon Lake, TX - Our Local Coverage Area
We’re based in the Canyon Lake 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 Canyon Lake
Every 3 – 5 years for most Canyon Lake homes, but homes within a quarter mile of the water or on heavily wooded lots may need it every 2 – 3 years. Humidity from the lake and limestone dust both accelerate buildup. If you haven’t had your ducts camera-inspected in three years, call (737) 727-2314 and we’ll check before recommending anything.
One flat price per system means we quote you a single dollar figure for the entire HVAC unit and its ductwork before we start, and that number does not change. Per-vent pricing is how bait-and-switch crews work: a low initial quote that doubles once they count every register in a two-system home. We quote per system because it’s honest and because Canyon Lake homes with two units deserve a price based on actual scope, not vent count.
Yes. Canyon Lake’s humidity means return ducts stay damp longer, and damp return ducts grow mildew. That’s why camera inspection and negative pressure source removal matter here more than in drier towns like Bulverde or Schertz. A basic register vacuum will not solve a mildew problem in your return ductwork. Call (737) 727-2314 if you’re noticing a musty smell from your vents.
Yes, on every job. You’ll receive photo documentation showing the inside of your ducts before cleaning and the same angles after. These are your ducts, not stock photos. It’s how you know the work was actually done, and it’s why we operate under The Relay Visibility Guarantee.
For a standard single-system home in Canyon Lake, expect $450 – $700 for a complete cleaning. Two-system homes run $700 – $950. Anything below $300 for a full system should raise questions about whether the crew is setting up proper negative pressure or just vacuuming registers. For a precise quote based on your system, call (737) 727-2314 and we’ll give you a number over the phone.
Written by Omar Haddad, Owner at Cardinal Air Duct Cleaning, serving Canyon Lake, TX.




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