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 costs between $380 and $620 for most single-family homes, with larger or heavily deteriorated systems running up to $900. The work is typically completed in half a day. San Lorenzo is one of the East Bay’s most concentrated markets for seriously degraded ductwork, thanks to the Bohannon-era ranch homes that dominate the town and the damp marine air that settles into their crawl spaces. Call us at (469) 972-3151 for a written quote before any work begins.
Why San Lorenzo Homes Are Different
San Lorenzo is built around the David D. Bohannon tract homes of San Lorenzo Village, a planned community mass-produced beginning in 1944 for returning WWII veterans. Those small ranch-style houses now have crawl-space duct systems that are 70 to 80 years old. The original galvanized runs were often retrofitted in the 1970s and 80s with flex duct, and we routinely find that flex sagging, kinked, or fully disconnected at the joints.
What makes San Lorenzo harder on ducts than nearby cities is the moisture. The town sits in the southern East Bay fog belt, with marine air funneling off the Bay and through the San Lorenzo Creek corridor. Crawl spaces stay damp through the cool season, and that ground moisture wicks up into unvented or poorly vented crawl spaces, accelerating corrosion on metal ductwork and mold colonization inside flex runs. We see far more mold-affected systems here than in drier East Bay cities like Livermore or Pleasanton, just a few miles inland.
For homeowners, that means a routine cleaning in San Lorenzo often uncovers collapsed flex duct, corroded joints, and insulation breakdown that restricts airflow and traps biological debris. The cleaning itself is the same process we use everywhere, but the condition of what we find is consistently worse here.
Our Main San Lorenzo Services
Two jobs account for nearly every call we take in San Lorenzo: cleaning the air ducts that move heated and cooled air through the home, and clearing the dryer vent line that exhausts to the outside.
Air Duct Cleaning in San Lorenzo
Our Air Duct Cleaning in San Lorenzo work starts with an inspection of the supply and return runs, most of which sit in crawl spaces in Bohannon-era homes. We use negative-air extraction, meaning a powerful vacuum pulls debris out of the ducts while brush agitation works the walls loose. That matters more in San Lorenzo because the damp crawl-space conditions mean the debris is often heavier and more compacted than in drier areas. Every job ends with before-and-after photos of your own ducts so you can see the work was done.
Dryer Vent Cleaning in San Lorenzo
Our Dryer Vent Cleaning in San Lorenzo service clears the full length of the lint line, from the dryer connection out to the exterior termination. San Lorenzo Creek’s persistent humidity makes lint cling harder inside the pipe, and a clogged vent line is a genuine fire hazard that deserves a trained technician, not a DIY attempt from the outside. The technicians clear the line from both directions using a lint trap bypass to reach the entire run. We check airflow at the end with a manometer so you have a verified reading.
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
We work on systems built around Honeywell, Aprilaire, and Nikro components, and we maintain local stock of the replacement parts most often needed in San Lorenzo homes. That means most turnarounds happen within the same week. See our brands for the full list.
Pricing for Air Duct Cleaning Company in San Lorenzo, CA
| Service | Typical range in San Lorenzo |
|---|---|
| Whole-home air duct cleaning (single system, up to 12 vents) | $380-$620 |
| Each additional vent over 12 | $25-$35 |
| Crawl-space duct access and remediation of separated flex runs | $250-$480 |
| Mold-affected duct cleaning with HEPA filtration | $550-$900 |
| Dryer vent cleaning (single-story, direct termination) | $95-$140 |
| Dryer vent cleaning (two-story home or long lateral run over 15 ft) | $140-$210 |
| Roof or upper-story vent termination access | $65-$110 |
| Full-home duct cleaning combined with dryer vent cleaning | $430-$690 |
| HEPA filtration upgrade during duct cleaning (Honeywell or Aprilaire) | $320-$650 |
San Lorenzo prices run higher than average because the work frequently involves crawling into damp, tight spaces to reach separated flex runs and corroded galvanized joints. The written quote you get before we start is the price you pay, with no door-step revisions.
Neighborhoods We Serve in San Lorenzo
We work throughout San Lorenzo Village and the smaller residential pockets around it. Here are the areas we serve most often:
- San Lorenzo Village
- Del Rey neighborhood
- Hesperian Boulevard corridor
- Bohannon tract homes east of the creek
- Lower Washington Manor
Most San Lorenzo jobs are reached within a single arrival window, since the town is compact and our scheduling is coordinated from our San Francisco Bay Area office.
Service Area – Cities Near San Lorenzo
While this page covers San Lorenzo specifically, our crews also serve nearby East Bay communities. Homeowners in Castro Valley, CA, San Leandro, CA, and the surrounding area can call the same number for written pricing and the same 365-Day Done Right Promise. We also handle jobs in Union City, GA and Oakland, FL through our network.
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 one arrival window, and we confirm that window when you call. The town is compact and our scheduling is coordinated from the Bay Area office, so we’re typically able to match a specific window rather than a vague “sometime between 8 and 5.” Call (469) 972-3151 and we’ll give you a firm window on the spot.
No. Air duct and dryer vent cleaning are considered routine maintenance, not alterations, so no HOA permission is required anywhere in San Lorenzo. The work happens inside your home and in the crawl space, and no exterior changes are made. If you’re in a managed community and want extra certainty, we’re happy to confirm with your property manager.
Yes, it does. Every job in San Lorenzo gets the same written 365-Day Done Right Promise as every other job we do. If the work falls short within the guarantee period, we return and make it right at no charge. It’s documented in writing on every single job, so you have something to point to, not a verbal assurance. Call (469) 972-3151 for a free estimate and a written price before any work begins.
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
"My wife's allergies were awful every morning. Had the ducts done and it's made a real difference. Tech was on time and wore booties in the house without me asking."
- Rob Pendergast"Bought an older home and the previous owners had pets everywhere. After Kestrel did the ducts the stale smell was just gone. On time, quick, and they showed me the filter they pulled."
- Preston Ngata"Our dryer was taking two cycles to dry a load. They cleaned the vent and pulled out a frightening amount of lint. Dries in one cycle now and honestly I feel better about the fire risk."
- Marcus Lee