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.
Before
After
Before
After
Before
AfterFast, Reliable Air Duct Cleaning Across San Lorenzo
Air duct cleaning in San Lorenzo typically costs between $290 and $540 for a full system on a standard 1,200 to 1,800 square foot Bohannon-era ranch home, with most jobs completed in three to five hours. If you’re on Via Alamitos, Paseo Grande, or any of the original San Lorenzo Village streets, you already know the housing stock well: 70 to 80-year-old tract homes with retrofitted HVAC and ductwork running through damp, low-clearance crawl spaces. We work these systems every week, and we know exactly what to expect when we open a register or drop into a crawl space off Hesperian Boulevard. Call (980) 447-2498 for a free estimate, and we’ll give you a written price before any work begins.
Why Linden Air Duct Cleaning Is San Lorenzo’s Preferred Air Duct Cleaning Company
San Lorenzo homeowners call us because we treat the crawl space as part of the duct system. Most companies vacuum the registers and call it done. We go under the house, because that’s where the problem lives. Since 2004, the Air Duct Cleaning team at Linden has worked these Bohannon tract homes, and we’ve seen the same failure modes repeat themselves: pulled-apart flex duct joints, rotted strapping, and mold staining on duct interiors from the marine layer that keeps crawl spaces damp from March through October. Our techs arrive in marked uniforms, and before they ever knock on your door, their name and photo come to your phone. They show a photo ID badge at the door. Every time. That’s the Threshold Standard, and it’s been our operating rule for more than two decades.
We’re headquartered in the San Francisco Bay Area, with crews dispatched locally to San Lorenzo throughout the week. When you call, a live person answers. No voicemail loops, no automated queues. You speak with a human being who can answer questions about crawl-space access, equipment, and pricing, then schedule a visit that respects your time and your household.
HVAC Duct Cleaning in San Lorenzo
HVAC Duct Cleaning in San Lorenzo means more than running a brush through a few registers. On these 1940s and 1950s ranch homes, it means accessing the crawl space, inspecting every supply and return run, and removing what’s actually living and accumulating inside: mold colonies, ground-moisture-laden insulation debris, pet dander, and decades of fine particulate that blows through tiny children’s bedrooms and into the lungs of older homeowners. A full residential system in San Lorenzo typically runs $290 to $540 depending on square footage, number of returns, and crawl-space access difficulty.
Supply Duct Cleaning
Supply ducts carry conditioned air from the furnace to every room. In San Lorenzo Village homes, those supply lines often run through the wettest part of the crawl space, where gaps at the boot connections pull in damp air and fine soil. We clean and reseal these runs using negative-pressure extraction, which means the debris is pulled out of the duct and into a HEPA-filtered vacuum, not blown back into your living space.
Return Duct Cleaning
Return ducts in these older homes are often the dirtiest part of the system. They sit low, they draw from the floor, and in raised-foundation houses they pull air through leaky crawl-space connections. We’ve removed handfuls of degraded insulation, rodent nesting material, and damp organic matter from returns under houses off Bockman Road and Channel Street. When we’re done, the return path is clean and the air handler isn’t straining against restricted flow.
Vent Cleaning in San Lorenzo
Vent Cleaning in San Lorenzo covers the registers, grilles, and the short boot connections where visible dust and biological growth accumulate. If you can see gray or black staining around the vent fins in a bedroom off Paseo Largavista, that’s not just surface dust. It’s often the visible edge of a fungal colony growing on the duct interior, fed by the crawl-space moisture that defines this part of the East Bay flatlands. Vent cleaning on a standard three-bedroom ranch here runs $90 to $190 as part of a full system job, and a few dollars more as a standalone service.
Register and Boot Cleaning
We remove each register, clean the boot by hand and with HEPA-fitted agitation tools, and reinstall it with the original screws and a clean seal. You’d be surprised how much of the odor problem in a San Lorenzo house comes from the first eighteen inches of duct behind the register.
Full System Cleaning
For homes on the original Village streets where the ducts have never been cleaned since installation, we recommend the full system route. That means every supply line, every return, the plenum, the blower cabinet, and the accessible crawl-space transitions. On a 1,400-square-foot Bohannon ranch, expect $410 to $540, and plan on us being there for the better part of an afternoon.
Trusted Brands We Service in San Lorenzo
We run professional-grade Rotobrush agitation tools and Nikro HEPA-filtered negative-air machines on every San Lorenzo job. When we encounter standing water or active microbial growth in a crawl space, we recommend and install air-quality products from Honeywell and Aprilaire, including whole-house filtration and dehumidification where the marine layer demands it. We stock common replacement parts for these systems locally, which means faster turnaround when your ducts need a grill, a boot, or a section of flex duct replaced. We don’t sell equipment you don’t need. We show you the before-and-after photos from our camera inspection, and we explain what we found in plain English.
Common Air Duct Cleaning Problems We See in San Lorenzo Homes
- Mold and mildew on duct interiors: The East Bay marine layer keeps raised-foundation crawl spaces humid from spring through early fall. That moisture seeps into duct systems through gaps at joints and boots, and we regularly find active fungal growth on the interior surfaces. This is not a surface problem; it requires source removal, not a quick blow-through.
- Collapsed or separated flex duct retrofits: The original Bohannon homes were built before central HVAC, and decades of Hayward Fault micro-movement plus rotted strapping means many of those 1970s and 1980s retrofits have pulled apart inside the crawl space. We find disconnected runs under more than half of the original Village homes we inspect.
- Ground-moisture insulation debris in returns: Low-clearance crawl spaces with degraded duct wrap and loose insulation mean return ducts pull in fine particle debris you don’t want in your bedroom air. This material is often damp, clumped, and carrying microbial spores.
- Restricted airflow from years of neglect: Because the ductwork is hidden under the house and the house is 70-plus years old, many systems have simply never been serviced. The blower motor works harder, energy bills creep up, and the house still feels stuffy. A camera inspection shows exactly what’s blocking flow.
On a 1951 Bohannon ranch off Via Alamitos, we pulled an 1980s flex duct retrofit that had partially collapsed and separated at a joint inside the crawl space. Its strapping had rotted from chronic dampness. We used our Rotobrush agitation tools through the accessible sections and a Nikro HEPA vacuum under negative pressure to perform source removal on the supply and return ducts. Then we camera-inspected the run, reconnected the failed joints, and checked the blower motor amp draw to confirm the air handler was no longer straining against restricted flow. The homeowner’s musty odor complaint cleared within a week.
Pricing for Air Duct Cleaning in San Lorenzo, CA
Here’s what we quote in this market: a full residential system cleaning on a 1,200 to 1,800 square foot San Lorenzo home runs $410 to $540. A smaller apartment or condo system with four to six registers typically falls between $290 and $370. Vent-only cleaning for a standard three-bedroom house runs $90 to $190. Commercial systems in the retail and light industrial spaces along Hesperian Boulevard are quoted per job based on square footage and duct complexity, but you’ll have a written price in hand before we start. The variables that move the number: number of returns, crawl-space clearance, whether the ducts have ever been cleaned, and whether we find separated runs that need reconnection. Call (980) 447-2498 and we’ll give you a firm number, not a guess.
We Also Serve Cities Near San Lorenzo
Our crews serve the wider East Bay, including Air Duct Cleaning in San Lorenzo and nearby Castro Valley, San Leandro, Union City, and Oakland. If you live just outside the Village or off 880 in one of those neighboring communities, the same written-price guarantee and Threshold Standard apply.
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 in San Lorenzo
Every three to four years is realistic for these Bohannon-era homes, and more often if you have pets, smokers, or visible mold growth at the registers. The crawl-space moisture profile in San Lorenzo means ducts here accumulate biological material faster than in drier parts of the East Bay. If you’re not sure whether it’s time, call (980) 447-2498 and we’ll help you decide based on a camera inspection.
Because the marine layer keeps your crawl space damp, and that moisture enters the duct system through loose joints and boots. When the furnace kicks on in late spring or the AC runs in summer, the warmth activates whatever is growing inside. We treat this with source removal and, where needed, recommend crawl-space moisture control from Aprilaire. If the smell returns after a surface cleaning, that’s why.
Yes. Decades of micro-movement along the Hayward Fault, combined with damp-rotted strapping in raised-foundation crawl spaces, means flex duct sections slowly pull apart at the joints. We find separated connections in a large share of original San Lorenzo Village homes. It’s not alarmism; it’s what we see every month on camera inspections.
We run Rotobrush agitation tools and Nikro HEPA-filtered negative-air machines. For whole-house filtration and humidity management, we install and maintain products from Honeywell and Aprilaire. These are trade-trusted brands, and we keep common parts on hand for faster service.
Yes. We work in crawl spaces with 18 to 24 inches of clearance regularly. It’s slow, uncomfortable work, but it’s where the problem lives in these homes, and skipping the crawl space means leaving the source of the contamination in place. We’ll tell you upfront if access conditions require extra labor, and that cost will be in the written price before we begin.
Call Linden Air Duct Cleaning for a Free San Lorenzo Estimate
If you live in San Lorenzo Village, along Hesperian Boulevard, off Bockman Road, or anywhere else in the 94580 and surrounding neighborhoods, call (980) 447-2498 today. We’ll schedule a visit, send you the tech’s name and photo before arrival, and put a written price in front of you before any work begins. The 365-Day Done Right Promise backs every job in writing: if the work isn’t right, we make it right. Owned by Marcus Veale and operated to the Threshold Verified standard since 2004, Linden Air Duct Cleaning serves San Lorenzo homeowners who want accountability, not a sales pitch.
Written by Marcus Veale, Owner at Linden Air Duct Cleaning, operating to the Threshold Verified standard since 2004.