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.
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Before
AfterAir Duct Cleaning Company in San Marino, CA
Air duct cleaning in San Marino means working inside some of the oldest and most carefully preserved homes in the San Gabriel Valley. Most of these estate homes were built between the 1920s and 1950s, long before central air conditioning existed. What we find inside their walls and attic spaces is almost always a retrofit: ductwork forced through original plaster, around chimneys, and into spaces never meant for airflow. That changes the job. It changes how we clean, how long it takes, and what it costs. If you’re looking for an air duct cleaning company in San Marino that understands pre-war construction and retrofit duct systems, call us at (980) 447-2498.
Why San Marino Homes Are Different
San Marino is not a tract-home city. The housing stock is dominated by custom-built estate homes in Spanish Colonial Revival, Tudor, and English Cottage styles, most constructed between roughly 1920 and 1955. Central air came decades later, usually retrofitted in the 1970s through the 1990s. That retrofit is the single most important thing we deal with on San Marino jobs. Duct runs thread through thick lath-and-plaster walls, original balloon-frame cavities, and oversized attics where builders improvised paths that modern load calculations would never approve.
We routinely find original rigid duct board with deteriorating fiberglass facing, disconnected plenum joints hidden inside finished ceilings, and runs far longer than they should be. One San Marino signature we see over and over: the HVAC system punched into the original structure through an interior chimney chase or a closed-off servants’ stairwell. Those shortcuts, taken during 1970s and 80s retrofits, create inaccessible duct segments and chronic debris traps. Homes in neighboring Alhambra or Arcadia rarely present the same conditions.
Then there’s the air itself. San Marino sits at the foot of the San Gabriel Mountains, directly below the Angeles National Forest. During fire season, wildfire smoke funnels straight down into the valley and gets pulled into leaky duct systems. Santa Ana winds add desert dust through any unsealed penetration. The SCAQMD consistently flags the San Gabriel Valley air basin among Southern California’s highest zones for PM2.5 particulate accumulation. Older duct systems here collect that contamination on an almost annual cycle.
Our Main San Marino Services
Most San Marino homeowners reach out to us for one of two reasons: their ducts have never been properly cleaned since the home was retrofitted, or their dryer vent has become a lint trap that their laundry room keeps warning them about. Here’s what each job involves in San Marino.
Air Duct Cleaning in San Marino
Negative-pressure extraction is the core of what we do. We seal the system and pull debris out rather than pushing it around, which matters in older San Marino homes where dust has been settling inside retrofit duct runs for decades. Rotobrush and Nikro equipment lets us reach into the long, irregular runs common in these estate homes. After the cleaning, we walk you through what came out. Read the full breakdown on our Air Duct Cleaning in San Marino page.
Dryer Vent Cleaning in San Marino
Dryer vents in San Marino often run long distances through finished walls and attics, sometimes twenty feet or more before they reach the exterior. That’s a recipe for lint accumulation and reduced airflow. Lint is combustible, and a restricted vent is the leading cause of dryer fires. We use specialized equipment including a dryer vent lint trap bypass to clear the full run and verify airflow at the termination point. See specifics on our Dryer Vent Cleaning in San Marino page.
Air Duct Repair in San Marino
Older duct systems fail in predictable ways. Disconnected joints, crushed flex runs, deteriorating duct board, and gaps at plenum connections are all common in San Marino’s retrofit systems. We repair and reseal these issues, then test the system. Every repair comes with a written guarantee. If a covered repair doesn’t hold, we return at no charge. Details are on our Air Duct Repair in San Marino page.
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 Marino
We work on duct systems from every major manufacturer, and our trucks carry components for the brands most common in San Marino homes. Rotobrush and Nikro equipment handles the cleaning side. For air-quality components, we work with products from Honeywell, Aprilaire, Abatement Technologies, and Guardsman. Most common parts are stocked on the truck, which means fewer return trips. See our brands for the full list.
Pricing for Air Duct Cleaning Company in San Marino, CA
San Marino pricing runs higher than the regional average because the systems are older, the runs are longer, and the access is often difficult. Here are typical ranges for the jobs we quote most often here.
| Service | Typical Range in San Marino |
|---|---|
| Whole-home air duct cleaning (single system) | $395 – $695 |
| Whole-home air duct cleaning (dual system) | $595 – $995 |
| Dryer vent cleaning | $145 – $225 |
| Air duct repair (minor: sealing, small section replacement) | $225 – $595 |
| Air duct repair (moderate: multiple joints, crushed flex runs) | $595 – $1,195 |
| Air duct repair (extensive: plenum rebuild, major re-routing) | $1,195 – $2,495 |
| Duct board replacement (per section) | $195 – $495 |
| Plenum sealing or rebuild | $295 – $895 |
| Flex duct replacement (per run) | $145 – $395 |
| Air purification add-on (Honeywell or Aprilaire) | $395 – $1,195 |
What pushes a San Marino quote toward the top of these ranges is access: runs threaded through finished ceilings, chimney chases, and walls that require careful work to avoid disturbing original plaster. The written quote you receive before any work begins is the price you pay, period. No per-vent add-ons, no surprise line items at the end.
Neighborhoods We Serve in San Marino
We work throughout San Marino, from the estate streets near Lacy Park to the homes tucked against the Huntington Library grounds and the neighborhoods along the northern edge approaching the mountains. Scheduling in San Marino is generally straightforward, and our Los Angeles office coordinates dispatch for local crews serving the city.
- Lacy Park area
- Huntington Drive corridor
- St. Albans Road estates
- Virginia Road area
- Oak Knoll border neighborhoods
Service Area – Cities Near San Marino
Beyond San Marino, our teams cover the surrounding San Gabriel Valley and nearby communities. We regularly serve homeowners in San Gabriel, CA, Alhambra, CA, Pasadena, MD, and South Pasadena, FL. If you’re in one of these areas, the same pricing, same written guarantee, and same verified technician standards apply.
Serving San Marino, CA - Our Local Coverage Area
We’re based in the San Marino 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 Marino
Most San Marino homeowners can get on the schedule within a week, though we work with you if there’s a specific reason to move faster, like a recent renovation or a smoke event that pushed debris into the system. Call (980) 447-2498 and we’ll find a slot that fits.
Interior duct cleaning does not require city permits or HOA approval because nothing structural changes. If repair work involves exterior vent terminations or roofline penetrations, your HOA may have architectural review requirements. We can tell you what the job involves before you submit anything.
We serve San Marino directly. Scheduling and dispatch are coordinated from our Los Angeles office, and crews work in San Marino weekly. Every technician arrives in a marked uniform with a photo ID badge, and you receive the tech’s name and photo before the visit. Call (980) 447-2498 to speak with a live person, any hour of the day.
Call (980) 447-2498 for a free estimate on air duct cleaning in San Marino. The price is put in writing before any work begins, and it’s the price you pay. No surprises, no pressure, no bait-and-switch.
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 Marino Customers Say
"We had construction dust packed into every register after a remodel. They sealed off the returns, used negative pressure, and left the floors cleaner than they found them."
- Paul E."I liked that I knew who was coming in. Name and photo texted ahead, badge at the door. He was quiet, careful with the furniture, and thorough."
- Cheryl A."Thorough job on all eleven vents and the main trunk. Took longer than the three hours they quoted, but he told me early and kept working. Air feels fresher."
- Meredith L.