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.
Air Duct Cleaning Company in San Marcos, TX
Air duct cleaning in San Marcos, TX typically costs $380-$640 for a standard single-system home, with older two-story tract homes from the 1990s running higher due to longer flex-duct runs and years of inland-valley dust loading. We’re Morton’s Air Duct Cleaning, and we’ve worked inside enough San Marcos homes to know exactly what the Santa Ana winds leave behind in your return plenums. Our crews arrive with Rotobrush and Nikro equipment, written pricing in hand before any work starts, and a 365-Day Done Right Promise on every job. Call (323) 918-4345 for a free estimate.
Why San Marcos Homes Are Different
San Marcos sits in an inland North County valley that funnels and amplifies Santa Ana wind events. When those hot, dry winds blow at 30-60 mph through the Twin Oaks corridor, they pull fine desert dust and charred chaparral particulate straight into HVAC intakes across the city. Unlike homes ten miles west in Carlsbad or Oceanside, San Marcos neighborhoods like San Elijo Hills and Twin Oaks Valley sit squarely in the wildland-urban interface. That means your ducts collect wildfire ash and smoke residue on top of normal seasonal dust – something we saw clearly after the 2017 Lilac Fire.
Add to that the housing stock itself. San Marcos grew fast between 1985 and 2010, and most of the homes we service are 1990s and 2000s master-planned tract builds. The original flex ductwork in those homes is now 20 to 30 years old, which is exactly the age when connections loosen, flex liners tear, and accumulated dust finally becomes visible at the registers. Homeowners here aren’t just getting a cleaner system – they’re getting an inspection of ductwork that has quietly aged past its design life. That matters more in an inland valley where the AC runs hard for four to five months straight and pulls a lot of air through those aging runs.
Our Main San Marcos Services
The two calls we get most from San Marcos homeowners involve the same root problem: ducts and vents that have been quietly loading up with inland dust and pet hair for years. Each service has its own page with full pricing and local details.
Air Duct Cleaning in San Marcos
Most San Marcos duct systems we open have a layer of fine ochre-tan dust mixed with gray pet dander and, depending on the neighborhood, a trace of charred chaparral from wildfire season. We run Rotobrush and Nikro agitation tools through trunk lines and branch runs, vacuum the return-air plenum, and finish with a filter check so the system holds its clean longer. The 20-30 year old flex duct in many Rancho Coronado and San Elijo Hills homes makes this a genuinely useful service – loose connections and small tears surface during cleaning, and you’ll see the before-and-after photo of your own system before we leave. Air Duct Cleaning in San Marcos covers the full process, pricing, and what to expect on the day.

Dryer Vent Cleaning in San Marcos
Lint accumulation in San Marcos dryer vents builds faster than the national average, partly because the dry inland air keeps lint loose and mobile, and partly because higher-capacity dryers in large tract homes push more lint through longer vent runs. We clean the full run from dryer to exterior termination cap, clear blockages, and use Nikro inspection equipment to confirm the vent moves air properly before we pack up. If your laundry room smells like damp lint or clothes take two cycles to dry, the vent is the first place to look. Full details on Dryer Vent Cleaning in San Marcos.

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.
Brands We Service in San Marcos
We service all major HVAC and dryer vent setups found in San Marcos homes, including systems built around Aprilaire filtration and Guardsman components. Our crews arrive with professional-grade Rotobrush and Nikro equipment, and we keep common replacement filters and vent caps stocked for same-visit turnaround. See our brands for the full equipment list.
Pricing for Air Duct Cleaning Company in San Marcos, TX
| Service | Typical range in San Marcos |
|---|---|
| Standard single-system air duct cleaning | $380 - $640 |
| Two-story tract home cleaning | $580 - $850 |
| Dryer vent cleaning | $95 - $165 |
| Return-air plenum deep clean | $120 - $210 |
| Supply register cleaning (per home) | $70 - $140 |
| Whole-home filtration inspection | $85 - $190 |
| Post-renovation duct cleaning | $570 - $1,020 |
| Pet dander and odor treatment | $220 - $420 |
| Flex duct inspection and reseal (select homes) | $180 - $320 |
What pushes a San Marcos price toward the higher end is almost always age and access. Homes in San Elijo Hills with long vertical chases, tight attic access, and 25-year-old original flex duct take longer to do right – and we won’t shortcut the process to match a lower bid. Before any work starts, you get a written price for your specific system. That price does not change when the van pulls up.
Neighborhoods We Serve in San Marcos
Our crews work across San Marcos regularly, from the newer builds in San Elijo Hills down to the established streets of Rancho Coronado and Twin Oaks Valley Ranch. Because we schedule for the area rather than rushing between distant cities, most San Marcos homes can be seen within a few days of the first call.
- San Elijo Hills
- Rancho Coronado
- Twin Oaks Valley Ranch
- Old Creek Ranch
- Discovery Hills
Service Area – Cities Near San Marcos
We also serve homeowners in the surrounding inland corridor and nearby communities. If you’re in Kyle, TX, New Braunfels, TX, or Buda, TX, we can schedule your duct or vent cleaning with the same written pricing and care standards we bring to San Marcos. We also serve Canyon Lake, CA for select appointments, with scheduling coordinated from our Austin office.
Serving San Marcos, TX - Our Local Coverage Area
We’re based in the San Marcos 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 Company in San Marcos
Most San Marcos homes can be scheduled within three to five business days of your call. We batch routes in the area so homeowners in San Elijo Hills and Twin Oaks Valley aren’t waiting on a technician driving in from the other side of the county. Call (323) 918-4345 and we’ll give you a specific date, not a window.
No HOA approval is needed for interior duct or dryer vent work. We arrive in a plainly marked vehicle, work inside your home and at the exterior vent cap, and can coordinate access if your community has gate codes or parking restrictions. Let us know when you book and we’ll note it for the crew.
If something about your duct or vent cleaning isn’t right – a register missed, a vent cap not properly reattached, or a concern you spot after the crew leaves – we return and make it right within the year. It’s stamped on every San Marcos job, and it applies the same way in every neighborhood we work. Call (323) 918-4345 for an exact quote, and you’ll have the number in writing before we start.
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 San Marcos Customers Say
"Ducts and dryer vent both. They put runners down the whole hall and wore booties. Spotless after, and they showed me photos of what came out. Worth every penny."
- Bonnie Vo"Spotless work. They laid drop cloths everywhere and I was honestly impressed there was zero mess at the end. Showed me the dirt they pulled out so I could see it was worth it."
- Shelby Dunham"New house, old dusty ducts. They were gentle in the house, laid down drop cloths, and double checked every register was sealed back up. Air smells fresh now."
- Scott Hemmings




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