Air Duct Cleaning Services in San Lorenzo, CA
Most San Lorenzo homes were built in the same decade, with the same ductwork, facing the same problems all at once. Air duct cleaning in San Lorenzo typically runs $350-$650 for a full system clean, and Bellows Air Duct & Vent Co. completes most jobs in a single visit with camera-verified results you’ll see for yourself. We’ve been driving to San Lorenzo since 2012, and our office in Bell means we’re usually on your street within the hour when you call (844) 685-6342.
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.
Why San Lorenzo Homeowners Choose Bellows Air Duct & Vent Co.
San Lorenzo homeowners don’t call us because we’re the cheapest. They call because they’ve already tried the coupon guys, and they don’t want to do it again.
We’ve built our reputation in neighborhoods like Floresta Gardens and Washington Manor by showing up when we say, charging the price we quoted, and leaving proof behind. Every job gets a camera inspection before and after. You’ll see what was in your ducts, and you’ll see them clean. Our 90-Day Done Right Promise means if anything isn’t right, we come back at no charge. No paperwork to file, no manager to escalate to. We fix it because we said we would.
Our technicians are background-checked and uniformed, and they answer to a live person at our office 24 hours a day. Not an app. Not a callback tomorrow. A real person who can dispatch someone to your home on Hesperian Boulevard or Bockman Road right now if you need us.
Air Duct Cleaning Services We Offer in San Lorenzo
Air Duct Cleaning
We clean the full supply and return duct system using professional-grade Rotobrush and Nikro equipment, with camera documentation at every stage. This is our core service for San Lorenzo’s aging Bohannon tract homes, where decades of crawl-space exposure have left ducts contaminated with moisture, mold, and debris. Learn more about our Air Duct Cleaning in San Lorenzo.
Dryer Vent Cleaning
Lint accumulation in dryer vents is a leading cause of house fires, and San Lorenzo’s older homes often have vent runs that were never designed for modern dryer loads. We clear the full line from appliance to exterior termination and verify airflow with digital measurement. Learn more about our Dryer Vent Cleaning in San Lorenzo.
HVAC Cleaning
Beyond ducts, we clean the blower assembly, evaporator coil, and cabinet interior where mold and dust collect and recirculate through your home. In San Lorenzo’s humid crawl-space environment, these components often harbor contamination the homeowner never sees until we show them. Learn more about our HVAC Cleaning in San Lorenzo.
Duct Repair & Sealing
The original sheet metal and early flex-duct in San Lorenzo’s 1940s-1950s homes has reached end of life. We repair separated joints, seal leaks with mastic and metal tape, and replace collapsed or rodent-damaged sections through our Duct Repair & Sealing in San Lorenzo. Every repair is pressure-tested and camera-verified before we leave.
Air Quality & Sanitizing
After mechanical cleaning, we apply Air Quality & Sanitizing in San Lorenzo with EPA-registered sanitizers to duct surfaces where mold and bacteria have taken hold. For San Lorenzo homes with chronic moisture issues near the creek or bay, this treatment helps prevent rapid recontamination.
Neighborhoods We Serve in San Lorenzo
We’ve worked in virtually every corner of the 94580 ZIP, but these are the areas we find ourselves in most often:
- Floresta Gardens - original Bohannon tracts with raised foundations and crawl-space duct runs
- Washington Manor - mid-century ranches showing simultaneous duct aging across the neighborhood
- Hesperian area - homes near the commercial corridor with mixed original and modified systems
- San Lorenzo Creek vicinity - properties with the highest moisture exposure and mold prevalence
Wherever you are in San Lorenzo, our response time is typically under an hour from your call.
Why San Lorenzo’s Climate & Housing Affect Air Duct Cleaning
San Lorenzo is not like Castro Valley or San Leandro, where housing was built across multiple decades with varied designs. David Bohannon developed nearly the entire town between 1944 and 1955 as one of California‘s first large-scale planned suburbs, and the result is a 94580 ZIP code filled with nearly identical ranch and minimal traditional homes, all turning 70-plus years old at the same time, all with ductwork routed through raised-foundation crawl spaces.
These crawl spaces sit a mile or two from San Francisco Bay and directly adjacent to the San Lorenzo Creek corridor. The marine layer rolls in and stays. Humidity persists year-round in ways it doesn’t in drier East Bay cities like Livermore or Dublin. That moisture doesn’t just make ducts dirty; it makes them a different kind of dirty. Where inland homes accumulate dry dust, San Lorenzo ducts grow mold and mildew on the interior surfaces. The original insulation wrapping breaks down and falls away, leaving bare metal sweating in humid air.
Then there’s the rodent problem. The original tract construction left flex-duct connection points and gaps that rats and mice have been exploiting for generations. Our technicians find nesting debris, droppings, and chewed sections block after block across San Lorenzo in patterns that simply don’t repeat this uniformly in neighboring cities with more varied housing stock. It’s not a random occurrence here. It’s the predictable condition of a specific house type in a specific place at a specific age.
This is why a generic duct cleaning doesn’t suffice for most San Lorenzo homes. The contamination is deeper, the damage is structural, and the environmental pressure is constant. We address it with equipment and protocols sized for the actual condition, not a standard package.
Air Duct Cleaning in San Lorenzo, Built on the K.E.Y.S. Code
The Bay Area’s mix of salt air, redwood pollen, and decades-old ranchers with original ductwork means your system works harder than it should. We inspect with a camera before we touch a thing, clean to the collar, and show you after. Dryer vents get cleared to code, because lint fires are real and preventable. One honest price, no surprises on the bill. we coordinate through our San Francisco Bay Area service area
We stand behind it with the Keystone Standard: 90 days, in writing, no arguing. Named for the oldest air-moving tool there is. Clean air, the old craft way.
Air Duct Cleaning in San Lorenzo
Bay Area summers pull cool air through ducts that stay damp half the year, and winter heaters stir up what settled in them. We inspect with a camera before we touch anything, clean to the collar, and show you after. Dryer vents get cleared to code, because lint fires are preventable and we treat them that way. One honest price, no surprises on the bill. we coordinate through our San Francisco Bay Area service area
We hire local, train apprentices into journeymen, and answer the phone with a person. The Keystone Standard applies to every job: 90 days, in writing, no arguing. We’ll be there when we say.
Air Duct Cleaning in San Lorenzo
Bay Area summers pull cool air through ducts that stay damp half the year, and winter heaters stir up what settled in them. We inspect with a camera before we touch anything, clean to the collar, and show you after. Dryer vents get cleared to code, because lint fires are preventable and we treat them that way. One honest price, no surprises on the bill. we coordinate through our San Francisco Bay Area service area
We hire local, train apprentices into journeymen, and answer the phone with a person. The Keystone Standard applies to every job: 90 days, in writing, no arguing. We’ll be there when we say.
Air Duct Cleaning in San Lorenzo
Bay Area summers pull cool air through ducts that stay damp half the year, and winter heaters stir up what settled in them. We inspect with a camera before we touch anything, clean to the collar, and show you after. Dryer vents get cleared to code, because lint fires are preventable and we treat them that way. One honest price, no surprises on the bill. we coordinate through our San Francisco Bay Area service area
We hire local, train apprentices into journeymen, and answer the phone with a person. The Keystone Standard applies to every job: 90 days, in writing, no arguing. We’ll be there when we say.
Pricing for Air Duct Cleaning in San Lorenzo
We don’t bait with a low number and change it at the door. When you call (844) 685-6342, we’ll ask about your home’s size, system configuration, and any known issues, then give you a firm price before we schedule. The number on the phone is the number on the invoice.
| Service | Typical Range in San Lorenzo |
|---|---|
| Standard full-system air duct cleaning (single furnace, up to 12 vents) | $350 - $550 |
| Larger homes or dual-zone systems (13-20+ vents) | $550 - $850 |
| Dryer vent cleaning (standalone service) | $125 - $195 |
| HVAC component cleaning (blower, coil, cabinet) | $200 - $350 |
| Duct repair/replacement (per section, varies by accessibility) | $150 - $400 |
| Mold/sanitizing treatment post-cleaning | $150 - $300 |
Standing offers for San Lorenzo homeowners: $50 off any repair over $250, free second opinion on any written estimate, $89 seasonal tune-up, and a permanent 5% senior and veteran discount. Call for an exact quote on your home - estimates are free.
Service Area - Cities Near San Lorenzo
We also serve homeowners in San Leandro, Castro Valley, Hayward, and Union City with the same upfront pricing and camera-verified standards. Our Bell location puts us within easy reach of the entire southern Alameda County corridor.
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
Most San Lorenzo homes fall in the $350-$650 range for a complete system clean, depending on vent count and system accessibility. The Bohannon tract homes’ crawl-space configurations sometimes add time compared to attic-duct homes, which we account for in our upfront quote. Call (844) 685-6342 for a free estimate on your specific home.
Given the persistent moisture from the bay and creek corridor, we recommend every 3-5 years for San Lorenzo homes, or sooner if you notice musty odors, visible mold, or reduced airflow. The 70-year-old ductwork in most 94580 homes simply can’t shed moisture the way newer systems do. Call us to schedule an inspection if you’re unsure.
Yes, and in San Lorenzo we do it regularly. We mechanically clean the duct surfaces first, then apply an EPA-registered sanitizer to address mold and mildew growth. We don’t just mask the problem - we remove the contamination and show you the camera footage to prove it. If the mold has compromised the duct material itself, we’ll recommend repair or replacement options with upfront pricing.
Repair is often practical for isolated damage in one or two sections, which runs $150-$400 per area. Full replacement becomes the better value when multiple sections are compromised by rodent damage, corrosion, or collapsed insulation, which we see frequently in the original Bohannon tracts. We’ll show you the camera footage and give you both options with firm prices so you can decide. Call (844) 685-6342 for an assessment.
We usually can. Our Bell office dispatches to San Lorenzo neighborhoods like Floresta Gardens and Washington Manor with typical response times under an hour for standard calls, same day for most scheduled work. Calls are answered by a live person 24 hours a day, and we carry the equipment to complete most jobs in a single visit. Call (844) 685-6342 to check today’s availability.
Ready to see what’s in your ducts? Call Bellows Air Duct & Vent Co. at (844) 685-6342 for a free estimate. We’ll give you an honest price before we start, show you camera proof when we’re done, and stand behind the work for 90 days in writing. That’s the square deal we’ve offered since 2012.
Written by the team at Bellows Air Duct & Vent Co., serving San Lorenzo since 2012.
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
"Did the dryer vent while they were here for a small add on price. The dryer finishes a load in one cycle now instead of two."
- Adam Pruitt"They ran a negative air machine on the whole system rather than the shop vac on a stick that the cheap outfit uses. Showed me the before and after photos from inside the trunk line and it was genuinely disgusting."
- Katie Sullivan"Two guys, about three hours, plastic down at every register, and they wiped the vent covers before putting them back."
- Grace Chen