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 Lorenzo, CA
Air duct cleaning in San Lorenzo is a different job than it is almost anywhere else in the East Bay. Most homes here are Bohannon tract houses built between 1944 and the early 1950s, and most still carry crawl-space ductwork that was never meant to last 80 years. We plan every San Lorenzo visit around that reality: damp crawl spaces, aged flex ducts, and tight clearances under single-story stucco homes. If you’re looking for an air duct cleaning company in San Lorenzo that gives you a written price before work starts, call (323) 918-4345.
Why San Lorenzo Homes Are Different
San Lorenzo was California’s first large-scale post-WWII planned suburb, developed almost entirely by David Bohannon starting in 1944. That means block after block of nearly identical 1,000 to 1,200 square foot single-story stucco homes, now 75 to 80 years old. The original heating design in most of these houses put a gas furnace in a hall closet and ran ductwork through a low-clearance dirt crawl space, often just 16 inches of room to work in.
The age matters, but so does what has happened since. Many of those first-generation ducts were upgraded with flex duct decades ago, and that flex now sits on damp soil under the subfloor. San Lorenzo’s location right next to San Lorenzo Creek and close to the Bay means the microclimate runs moister than inland Hayward or Castro Valley, especially through winter and spring. We regularly open crawl-space access panels in San Lorenzo and find vapor barriers that have failed, duct insulation that has wicked moisture, and rodent activity that has chewed through flex sections. None of this is unusual here. It is the standard condition of a 1940s Bohannon home, and it changes how the work should be done.
For our home service area, we treat San Lorenzo as its own job type: crawl-space-first, moisture-aware, and honest about what a duct system this old can and cannot be restored to.
Our Main San Lorenzo Services
Two services account for the large majority of calls we receive from San Lorenzo homeowners, and each has its own dedicated page with pricing, process details, and local notes.
Air Duct Cleaning in San Lorenzo
Air duct cleaning on a Bohannon-era home starts with the crawl space, not the vents. We inspect the flex runs and sheet-metal sections under the subfloor, because that is where 75 to 80 years of dust, rodent debris, and Bay-adjacent humidity have settled. The work uses professional equipment from Rotobrush and Nikro, sized to handle the low-clearance crawl spaces that define the San Lorenzo housing grid. Before any work begins, you get a written price. Full details are on the service page: Air Duct Cleaning in San Lorenzo.
Dryer Vent Cleaning in San Lorenzo
Dryer vents in San Lorenzo tend to run through crawl spaces or short wall cavities, and in a 1940s home the vent run is often shorter than modern code would like. Lint accumulates quickly, and the same moisture that affects ductwork can turn lint into a dense, stubborn blockage. We clean the full vent run with equipment from Nikro and Abatement Technologies, and we photograph the work before we leave. Full details are on the service page: Dryer Vent Cleaning in San Lorenzo.
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 Lorenzo
Every duct system carries manufacturer-specific components, and most San Lorenzo homes have a mix of decades-old and newer equipment. Our techs work on systems built around Honeywell, Aprilaire, and Nikro components, among others. Replacement parts are stocked locally in the Bay Area, so most jobs need only one visit. See our brands for the full list.
Pricing for Air Duct Cleaning Company in San Lorenzo, CA
Here is what you can expect to pay for air duct and dryer vent work in San Lorenzo. These are whole-system ranges, not per-vent teaser prices, and the number we quote before work starts is the number on your invoice.
| Service | Typical Range in San Lorenzo |
|---|---|
| Air duct cleaning, whole system (small single-story home) | $350-$550 |
| Air duct cleaning, whole system (larger or two-story addition) | $550-$850 |
| Crawl-space duct replacement (single run) | $220-$450 per run |
| Air duct sanitizing treatment (after cleaning) | $150-$300 |
| Dryer vent cleaning (single-story, short run) | $120-$200 |
| Dryer vent cleaning (long run, crawl-space or multi-story) | $200-$350 |
| Crawl-space vapor barrier repair (small section, with duct work) | $250-$500 |
| Rodent debris and contaminated duct removal | $300-$700 |
Homes on the Bohannon grid with original crawl-space flex that has never been replaced tend to run at the upper end of these ranges, because aged ductwork is harder to clean without damage and often needs sections replaced rather than flushed. We show you the written price for your entire job before anything starts, so there is never a surprise on the invoice.
Neighborhoods We Serve in San Lorenzo
We work throughout San Lorenzo, from the streets immediately adjacent to San Lorenzo Creek up through the numbered avenues and the blocks east toward the hills. Each neighborhood is its own variation on the Bohannon theme, and the crawl spaces tell the story of what has happened over 80 years. Our typical San Lorenzo scheduling time is within the same week, and we ask about school pickups, nap hours, and pets when we book.
- San Lorenzo Village (the original Bohannon grid)
- Delmar district
- Bockman Road area
- Hesperian Boulevard corridor
- The blocks adjacent to San Lorenzo Creek
Service Area – Cities Near San Lorenzo
Our crews serve San Lorenzo and the surrounding East Bay cities with the same written-price-before-work standard. Homeowners in Castro Valley, CA and San Leandro, CA regularly schedule with us for duct and dryer vent work. We also maintain service pages for Union City, GA and Oakland, FL for our service partners in those regions.
Serving San Lorenzo, CA - Our Local Coverage Area
We’re based in the San Lorenzo 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 Lorenzo
Most San Lorenzo jobs are scheduled within the same week, and we make sure you have a written price before the crew arrives. We coordinate scheduling around nap times, school drop-offs, and whatever else your household needs. Call (323) 918-4345 and a real person will pick up.
No permit is required for air duct or dryer vent cleaning in San Lorenzo, and most HOAs in the Village do not get involved in interior mechanical work. If your home has a crawl-space access point that runs through a shared wall or a neighbor’s lot, we will tell you before work starts.
Yes. We work across the full Bohannon grid, including homes along Hesperian Boulevard, the numbered avenues, and the blocks near San Lorenzo Creek. If you are not sure whether your home is in our San Lorenzo service area, call (323) 918-4345 and we will confirm.
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 Lorenzo 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