Level 1 sweep and inspection to the NFPA 211 annual standard - flue, crown, cap, and flashing checked and photographed
Chimney sweep logs do not sweep chimneys. They loosen some creosote - which then falls where a brush and vacuum still have to collect it.
Before
After
Before
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Before
AfterChimney Company in San Lorenzo, CA
San Lorenzo homeowners deal with a very specific kind of chimney problem: nearly every home here was built by Kaiser Community Homes between 1944 and 1950, which means most flues are original clay tile, most brick crowns are original-spec, and most dampers have been seized for years. The marine layer off the Bay adds moisture that accelerates mortar breakdown and creosote formation. Alcott Chimney Sweep works these flues every week, and we know what to expect before the ladder goes up. Call (336) 863-3889 for a free estimate from a team that works San Lorenzo’s housing stock daily.
Why San Lorenzo Homes Are Different
San Lorenzo was developed almost entirely by Kaiser Community Homes in the mid-to-late 1940s as planned postwar worker housing. That single-builder, single-era construction window means the overwhelming majority of chimneys in this community are original 1944 – 1950 economy-construction brick-and-clay-tile flues now approaching 80 years old. They’re all aging on the same timeline, and they fail in the same predictable ways.
What we see most often on San Lorenzo calls: spalled brick crowns, cracked clay flue liners, failing mortar joints, and long-seized cast-iron dampers that haven’t moved in decades. The smoke chamber transition is a known weak point in Kaiser-era construction, and it’s almost always the first place the clay tile cracks. A sweep working San Lorenzo learns the defect pattern street to street. Add the persistent low-level marine moisture that rolls in off the Bay, and you get moss and efflorescence on exterior brick, plus cooler, wetter stack conditions that produce heavier creosote deposits than inland East Bay cities, even with light seasonal use.
If your home falls in the 1944 – 1952 build window, the single most useful thing you can do is get a camera inspection before you burn again. Homeowners are often told their flue needs thousands of dollars in liner work. We don’t ask you to take anyone’s word for it. Our camera inspection produces photos you can see yourself, and we’ll tell you plainly when work can wait.
Our Main San Lorenzo Services
The two services San Lorenzo homeowners call about most are chimney sweeping and chimney inspection, with gas fireplace repair close behind. Each has its own dedicated San Lorenzo page with pricing, process, and what to expect.
Chimney Sweep in San Lorenzo
A standard sweep in San Lorenzo removes creosote, the tar-like buildup that causes chimney fires, plus soot and any debris that’s fallen in from a deteriorated crown. Given how many Kaiser-era flues have original clay liners, we pay close attention to how much creosote comes out and where it’s accumulating, because that tells us where the liner may be cracking. A sweep is the right first step for most San Lorenzo homeowners, and it gives you a baseline before burning season. Chimney Sweep in San Lorenzo
Chimney Inspection in San Lorenzo
In San Lorenzo, an inspection is less about “is it dirty” and more about “is this 80-year-old flue still safe to use.” We run a camera through the flue and document the smoke chamber transition, where Kaiser-built clay tile tends to crack first. You get photos you can review yourself. If a liner is cracked, we walk you through options and tell you honestly whether a repair can safely wait. No recommendation without camera evidence you can see for yourself. Chimney Inspection in San Lorenzo
Gas Fireplace Repair in San Lorenzo
Many San Lorenzo ranch homes have gas fireplaces retrofitted into the original brick firebox. We service the gas line, pilot assembly, thermocouple, and burner, using professional trade parts rather than box-store substitutes. A gas fireplace that won’t light or stays on when it shouldn’t is a safety issue, and we treat it that way. If you smell gas, evacuate and call 911 first; then call us once the gas is off. Gas Fireplace Repair 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
We work with DuraFlex liner systems, Olympia Chimney caps and dampers, and Famco and Copperfield components. Parts are stocked locally, and most common replacements are installed same-visit. Our brands page covers the full lineup.
Pricing for Chimney Company in San Lorenzo, CA
| Service | Typical range in San Lorenzo |
|---|---|
| Standard chimney sweep | $180 – $340 |
| Chimney inspection (Level 1) | $200 – $350 |
| Chimney inspection with camera (Level 2) | $350 – $600 |
| Gas fireplace service call | $150 – $300 |
| Gas fireplace repair (minor parts incl.) | $250 – $550 |
| Crown repair | $350 – $850 |
| Clay flue liner repair (spot) | $400 – $900 |
| Full flue reline (DuraFlex stainless) | $3,000 – $6,500 |
| Damper replacement | $250 – $600 |
| Chimney cap installation | $200 – $500 |
What pushes prices up in San Lorenzo is the age of the Kaiser-era build. Cracked clay tile at the smoke chamber transition, spalled crowns, and seized dampers are the default condition on 1944 – 1950 construction, so a sweep often uncovers a repair that a newer home wouldn’t need. Whatever the final number is, you’ll get a written price before any work starts. No surprises, no pressure. If we see something we can’t fully diagnose with the camera, we’ll tell you before any quote is final.
Neighborhoods We Serve in San Lorenzo
San Lorenzo’s tract layout means the neighborhoods are consistent, and so are the chimney defects. We work throughout the village, with most calls in the residential blocks east of Hesperian Boulevard and west of the hills.
- San Lorenzo Village
- Ashland border area
- Hesperian Boulevard corridor
- Bockman Road area
- Via Alamitos and surrounding blocks
Most San Lorenzo calls can be scheduled within a few business days. Burning-season appointments fill up faster, so late September through January is the window to book ahead.
Service Area – Cities Near San Lorenzo
We cover San Lorenzo and the surrounding East Bay communities. If you’re in a neighboring town, we can usually schedule the same week. We also serve Castro Valley, CA, San Leandro, CA, Union City, GA, and Oakland, FL. If you’re unsure whether we cover your block, call and a live person will confirm.
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 Chimney Company in San Lorenzo
For most standard sweeps and inspections, no permit is required. For structural repairs, relines, or firebox rebuilds, Alameda County may require a permit depending on the scope. We’ll tell you at the quote stage and handle the paperwork where it applies.
Book a few weeks ahead if you can, especially before the fall burning season. September through January is the busiest window, and Bay Area rain can push exterior work around. Call (336) 863-3889 and we’ll find a slot that works.
Schedule an inspection before you light anything. In San Lorenzo’s Kaiser-era homes, flues that have sat unused collect moisture, and original clay liners are often cracked at the smoke chamber transition. We’ll camera-inspect and tell you exactly what’s needed. Estimates are free, and the work is scheduled at your pace.
What happens when you call
- 1A real person answersNo phone trees - talk to a local chimney 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
"Cap, screen, and a full inspection with photos sent to my phone. Easy to understand and a fair price."
- Tomas Y."Very respectful of my home. Took off his boots and wiped the hearth when finished."
- Carol D."Annual inspection and sweep. He used a camera to check the liner and found a cracked tile I had no idea about. Gave me a written estimate and did not push."
- Janet W.