Whole-home duct cleaning
Dryer vent cleaning
Camera inspection
Sanitizing & deodorizingWhole-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.
Air Duct Cleaning Company in San Lorenzo, CA
Air duct repair in San Lorenzo usually means finding and sealing the gaps in 60- to 70-year-old sheet-metal ductwork before cleaning can even make sense. Most of the homes here were built in the late 1940s and 1950s, and their original ducts are typically loose at the seams, taped with dried-out fabric, and pulling unfiltered crawl-space air straight into the house. We run Rotobrush agitation, Nikro HEPA extraction, and Abatement Technologies negative-pressure containment so the work fixes the system instead of just stirring dust around. Call (855) 382-9257 for a free estimate.
Why San Lorenzo Homes Are Different
San Lorenzo is unincorporated Alameda County, and most of its housing stock went up fast after WWII, concentrated in the 94580 ZIP. The typical place is a single-story ranch or stucco tract home on a generous lot, owner-occupied for decades with the original forced-air system still in place. That is the defining fact of duct work here: not flex-duct retrofits, but aged sheet-metal runs with friction-fit joints that have loosened over 60-plus years of service.
The climate pushes dust and corrosion in ways a newer East Bay suburb doesn’t see. Cool, foggy summers and damp winter air keep dust slightly tacky inside the ducts, so it clings instead of blowing through. Fall, right after the summer windows-closed season, and early spring are the natural cleaning windows. Around the San Lorenzo Village area especially, we routinely find separated duct seams under the house where crawl-space dust has been pulled into the supply air for years. County permitting governs duct and HVAC changes, and the work usually involves older plenum runs through the crawl space or attic.
Styles & brands we work with
- Whole-home duct cleaning
- Dryer vent cleaning
- Camera inspection
- Sanitizing & deodorizing
Our Main San Lorenzo Services
Two services cover most of what San Lorenzo homeowners call us about: cleaning the ducts and clearing the dryer vent. Each one has its own dedicated page because the process, equipment, and pricing are different enough to deserve separate treatment.
Air Duct Cleaning in San Lorenzo
Most San Lorenzo homes have never had their ducts cleaned, and the original 1950s metal runs hold decades of dust, pet hair, and construction debris from long-ago remodels. We send a rotating brush through every reachable supply and return run to break the crust loose, then pull it out with HEPA-rated extraction so it doesn’t get pushed into the living space. Negative-pressure containment throughout keeps the work clean. Air Duct Cleaning in San Lorenzo covers the full process, pricing, and what to expect when we inspect your system.
Dryer Vent Cleaning in San Lorenzo
Dryer vents in these older San Lorenzo homes often run long horizontal distances from the laundry room to an exterior wall, sometimes through the crawl space. Lint builds up in the low spots, restricts airflow, and becomes a fire hazard that has nothing to do with how full the lint trap is. We clean the full vent run, not just the first few feet. Dryer Vent Cleaning in San Lorenzo explains the process, the warning signs, and the local factors that make this a priority here.
Air Duct Repair in San Lorenzo
Air duct repair in San Lorenzo is usually about sealing what time and the bay climate have undone. After six or seven decades, the taped seams on 1950s sheet-metal ducts have dried and failed, friction-fit joints have pulled apart, and sections under the house have separated enough to pull crawl-space air directly into the supply stream. That means the system is heating and cooling the crawl space while blowing dust, insulation fibers, and damp air into the rooms. Cleaning alone won’t fix that. We seal, reconnect, or replace the compromised sections so the air actually reaches the registers. This is the full-service Air Duct Repair work we do, using inspection first and repair before cleaning whenever the ductwork needs it.
Ductwork Repair
Signs you need it
Rooms that stay stuffy or never reach the same temperature as the rest of the house, visible dust streaks around registers, or a crawl space that smells stale when the system kicks on.
What it costs in San Lorenzo
Ductwork repair in San Lorenzo typically runs $350 to $750 depending on how many seams, joints, or small sections need work.
How we do it
We locate every failed seam and separated joint, clean the mating surfaces, seal with mastic and aluminum tape, and re-support sagging runs.
Duct Replacement
Signs you need it
Crushed, rusted, or torn sections of duct, or runs so deteriorated in the crawl space that sealing makes less sense than replacing.
What it costs in San Lorenzo
Duct replacement in San Lorenzo typically costs $1,500 to $3,200 for a partial system replacement using insulated metal duct.
How we do it
We cut out the failed sections, fit new metal duct to the existing layout, seal every joint, and confirm airflow at the registers before we leave.
What Air Duct Repair Costs in San Lorenzo
| Item | Typical range in San Lorenzo |
|---|---|
| Ductwork repair (seams, joints, small sections) | $350 – $750 |
| Partial duct replacement | $1,500 – $3,200 |
| Full-system duct replacement | $3,000 – $6,000 |
Pricing moves with the age of the system, how much of the duct sits in a tight crawl space, and whether the original 1950s layout needs re-routing to work properly.
Can you repair ducts without replacing the whole system?
Yes, most San Lorenzo duct problems are localized. We find the failed seams and separated joints, clean and seal them, and replace only the sections that are crushed or rusted through. You get a written estimate before any work starts.
Why do my ducts keep separating under the house?
Original 1950s friction-fit joints loosen over decades, and damp winter air softens the old materials. Crawl-space movement and aging supports make it worse. Properly sealed and supported replacements hold far longer. Call (855) 382-9257 for an inspection.
Brands We Service in San Lorenzo
We work with the filtration and air-quality equipment already installed in San Lorenzo homes, including Honeywell, Aprilaire, and Guardsman systems. Knowing these lines means we understand how the ducts connect to the filtration, not just the metal. See our brands for details on what we service and stock.
See the difference
Before
After
Before
After
Before
AfterPricing for Air Duct Cleaning Company in San Lorenzo, CA
| Service | Typical range in San Lorenzo |
|---|---|
| Air duct cleaning (whole home) | $450 – $900 |
| Dryer vent cleaning | $125 – $250 |
| Ductwork repair (seams, joints, small sections) | $350 – $750 |
| Partial duct replacement | $1,500 – $3,200 |
| Full-system duct replacement | $3,000 – $6,000 |
| HVAC duct installation (new runs) | $2,000 – $4,500 |
| Air duct replacement (partial) | $1,500 – $3,200 |
| Ductwork installation (new construction or addition) | $2,500 – $5,000 |
What pushes a San Lorenzo job higher is usually crawl-space access, how much of the original 60-plus-year-old duct has to come out, and whether the layout needs adjustment to move air properly. Whatever the scope, we agree on one flat price before work starts and the written estimate sets the final number.
Neighborhoods We Serve in San Lorenzo
We cover the whole San Lorenzo area, and most of the work clusters in the older tract neighborhoods where the 1950s ductwork is still original. On any given day we are typically moving between these areas:
- San Lorenzo Village
- Heron Bay
- Bay-O-Vista
- The neighborhoods north of Hesperian Boulevard
- The east side near the San Lorenzo Creek corridor
Response time across San Lorenzo is consistent, usually same-day or next-morning during our Sunday through Friday dispatch window.
Service Area – Cities Near San Lorenzo
People in the neighboring unincorporated and small-city communities often call us for the same aging ductwork issues. We work regularly in Ashland, CA, Cherryland, CA, Castro Valley, CA, and Fairview, CA. If you are just outside the San Lorenzo line, call and we will tell you straight whether we cover your street.
Serving San Lorenzo, CA – Our Local Coverage Area
We serve San Lorenzo and nearby communities. Use the map below to see the area we cover. If you’re nearby, we can almost certainly help.
FAQs About Air Duct Cleaning Company in San Lorenzo
Yes, we cover the entire 94580 ZIP and the surrounding unincorporated areas. Most calls come from the 1950s tract neighborhoods, but we work in every part of San Lorenzo, including homes on the hillside edges and near the bay flats.
As an unincorporated area, San Lorenzo falls under Alameda County permitting for duct replacement and HVAC changes. Repairs and cleaning typically do not require a permit, but replacement work may. We can tell you what applies to your specific job during the estimate.
Most San Lorenzo jobs are scheduled same-day or next-morning, Sunday through Friday. Call (855) 382-9257. We answer 24/7. Fast dispatch from 7am to 7pm.
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 now finishes a load in one cycle instead of two."
- Grace Lin"Job was done well and the house smells better. There was some dust knocked loose around a couple of the registers that I had to wipe down afterward."
- Kurt Norris"Found a disconnected run in the crawlspace while they were in there and told me about it rather than cleaning around it."
- Renee Thompson