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 Lake San Marcos, CA
Air duct cleaning in Lake San Marcos typically runs $350 – $650 for a whole-home system, with most jobs scheduled within a week and completed in a single visit. The 1970s and 1980s housing stock here, much of it originally built with electric forced-air heat pumps, means we’re often cleaning legacy ductwork that’s been modified, extended, or left with abandoned runs after decades of HVAC upgrades. We’re Hollis Air Duct Cleaning, part of the Garrison Partners family, and we serve Lake San Marcos with written upfront pricing, background-checked uniformed technicians, and the 365-Day Done Right Promise on every job. Call us at (361) 326-5060 for a free estimate.
Why Lake San Marcos Homes Are Different
Lake San Marcos isn’t a typical suburban grid. It’s a tight, lake-centered community where most homes date to the late 1960s through the 1980s, and many were built with electric forced-air systems that have seen multiple HVAC upgrades over the years. Those upgrades often left behind mismatched flex duct, abandoned trunk lines, and connections that never got properly sealed. When we clean ducts here, we’re not just vacuuming debris, we’re mapping what’s actually still in use and what’s been left to collect dust in attics or crawlspaces.
The inland North County climate works against these systems too. Hot, dry summers pull dust and allergens through every gap, while mild, damp winters can let moisture sit in unconditioned attic ducts and crawlspace runs. We’ve found moisture stains and even rodent nesting evidence in lakefront homes where ducts pass through unconditioned spaces. And because Lake San Marcos is heavily HOA-governed, scheduling often requires coordinating with association rules and working around lake-adjacent access constraints that don’t exist in standard subdivisions. Wildfire smoke events in the region can also force ash and soot into HVAC systems, creating sudden spikes in demand for thorough duct cleaning.
Our Main Lake San Marcos Services
Homeowners in Lake San Marcos call us most often for these three services, each with its own dedicated local page:
Air Duct Cleaning in Lake San Marcos
Our rotary brush system, powered by Rotobrush equipment, agitates debris from duct walls while a high-capacity vacuum pulls it out of your home. In Lake San Marcos, we often find that original rigid metal trunks have been patched with flex duct that sags or leaks at the joints, so our technicians inspect for airflow restrictions while they clean. We use negative-air methods from Nikro when the buildup is heavy or when mold is suspected from winter moisture exposure. Every job gets a written price before we start and is covered by our 365-Day Done Right Promise. Air Duct Cleaning in Lake San Marcos

Dryer Vent Cleaning in Lake San Marcos
Dryer vent cleaning in Lake San Marcos addresses a real fire hazard that builds faster than most homeowners expect. The same dry climate that fills ducts with dust also creates ideal conditions for lint accumulation, and many older homes here have vent runs that are longer or more convoluted than modern codes allow. Our technicians use professional-grade brushes and high-velocity air to clear the full run from dryer to termination, checking for proper airflow at the exterior cap. We document the before-and-after with photos you can see. Dryer Vent Cleaning in Lake San Marcos

Duct Sealing in Lake San Marcos
Duct sealing in Lake San Marcos often delivers the biggest comfort improvement for the investment, especially in homes where decades of modifications have left joints and connections leaking conditioned air into attics and crawlspaces. We apply mastic sealant and mechanical fasteners to accessible joints, and we use pressure testing to verify results. For Lake San Marcos homes with unconditioned crawlspace or attic runs, sealing can drop energy bills measurably and reduce the dust load that makes cleaning necessary more often. Duct Sealing in Lake 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 Lake San Marcos
We stock parts and filters from Honeywell, Aprilaire, Abatement Technologies, and Guardsman, and we carry Rotobrush and Nikro cleaning equipment on every truck. Most replacement components for standard residential systems are available same-day, and we coordinate dispatch from our Los Angeles office to keep Lake San Marcos appointments on schedule. See our brands for the full equipment roster.
Pricing for Air Duct Cleaning Company in Lake San Marcos, CA
| Service | Typical range in Lake San Marcos |
|---|---|
| Whole-home air duct cleaning (single system) | $350 – $650 |
| Whole-home air duct cleaning (two systems) | $550 – $950 |
| Dryer vent cleaning (standard run) | $120 – $200 |
| Dryer vent cleaning (long or rooftop run) | $180 – $280 |
| Duct sealing (partial, accessible joints) | $400 – $700 |
| Duct sealing (whole-home, pressure-tested) | $800 – $1,500 |
| Mold remediation add-on (light, localized) | $200 – $400 |
| Heavy debris / post-construction cleaning | $500 – $900 |
Prices in Lake San Marcos push toward the higher end when homes have multiple abandoned duct runs that need capping, when access is limited by compact utility closets in condos, or when HOA scheduling constraints require after-hours work. We write the price down before any work starts, and that number does not move at the door.
Neighborhoods We Serve in Lake San Marcos
We work across the full Lake San Marcos community, from lakefront properties to the condo and townhome clusters near the golf course. Most appointments are scheduled within a week, with dispatch coordinated to keep drive times short and arrival windows reliable.
- Lakefront and near-lake single-family homes
- San Marcos Creek Villas (condo/townhome area)
- Grandon Village
- Woodland Hills adjacent properties
- San Marcos Boulevard corridor residences
Service Area – Cities Near Lake San Marcos
Our crews work Lake San Marcos directly and also serve surrounding North County and metro areas. We regularly schedule jobs in Los Angeles, CA from our dispatch office there, and we run routes to San Diego, CA, San Jose, CA, and San Francisco, CA for larger commercial accounts or coordinated multi-location service.
Serving Lake San Marcos, CA - Our Local Coverage Area
We’re based in the Lake 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 Lake San Marcos
Most Lake San Marcos HOAs require advance notice for any work involving exterior access, rooftop equipment, or shared utility chases in condo buildings. We provide written scope descriptions on request and can coordinate directly with your property manager to keep the job compliant.
After regional wildfire events, we prioritize Lake San Marcos homeowners who report ash or soot odors from their HVAC systems. Call (361) 326-5060 and we’ll get you scheduled as soon as possible, typically within a few days during normal periods and faster when air quality events spike demand.
The mix of original 1970s rigid duct, later flex additions, and abandoned runs means two homes of similar size can have very different duct configurations. We price by what your system actually requires, not by square footage, which is why we inspect before quoting and put the price in writing.
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 Lake San Marcos Customers Say
"Dryer vent was packed with lint and took two hours to dry a load. Cleaned it out from the roof cap down. One cycle again."
- Paula Q."No sales pitch. Told me which parts of the system were fine and only cleaned what needed it."
- Ted L."They checked each section with a camera and showed me the dust before and after. Thorough and honest."
- Nicole H.




Before
After
Before
After
Before
After