How Hearthstone Chimney Co. of San Francisco Was Born in San Francisco
It was a Tuesday morning in late October of 1984, and the fog hadn’t lifted off the Sunset District yet. We’d been sweeping chimneys for another outfit, running calls from the Presidio down to Daly City, and something had been eating at us for months. A woman in Noe Valley, maybe seventy years old, had called us back three times for the same draft problem. Each time, the company sent someone different, each one upsold her something new, a stainless liner she didn’t need, a cap that didn’t fit right. She’d paid over eight hundred dollars and still couldn’t light a fire without smoking up her living room.
We spent four hours in her basement that morning, tracing the flue with a mirror and a flashlight, and found the real problem: a partially collapsed smoke shelf, hidden behind a botched repair from the previous decade. Took us two days to fix it proper. She baked us oatmeal cookies and wrote a letter to the company. They filed it in the trash and reprimanded us for “excessive time on site.”
That night, we called our wife from a payphone on Mission Street and said, “We’re doing this ourselves.” Not starting a company. Bringing something to San Francisco that the city didn’t have: a sweep who’d crawl into the dark places and tell you the truth, who’d fix what was actually broken, who’d charge you for the work done and not a penny for the fear sold. Hearthstone Chimney Co. opened its San Francisco branch six weeks later, operating out of a borrowed garage on Geneva Avenue. The promise was simple then, and it’s simple now: a square deal, no surprises on the bill, and we’ll be there when we say.
Our Founder’s Personal Connection to the Chimney Cleaning Trade
People ask how we got into this line of work, and the honest answer is: we fell into it backwards and found we couldn’t leave. We’d been working construction in South San Francisco, framing mostly, and a general contractor needed someone to run a brush up a flue on a Victorian in Pacific Heights. The regular sweep had quit. We took the job because we needed the forty dollars, and because we were curious what was up there.
What we found was a layer of glazed creosote, thick as peanut butter, clinging to terracotta flue tiles that had been in place since the 1890s. The smell hit first, sharp and chemical, old fires compressed into something almost alive. Then the texture of it, the way it resisted the brush and then gave way in chunks. Then the light coming down from the top, showing us the whole history of that house in ash and soot. We’d been building walls for years, and suddenly we were touching the inside of something, the lung of a home that had warmed five generations.
That was forty-two years ago. We’ve swept chimneys in Chinatown walk-ups where the flue runs through three floors of restaurant exhaust, in Tiburon hillside homes where the Pacific wind tests every seal, in Visitacion Valley bungalows where the original masons left their thumbprints in the mortar. Every firebox is different. Every smoke shelf has its own geology. You could give us a blindfold and a handful of soot, and we’d tell you if it came from oak or almond, if the draft was running fast or lazy, if the homeowner had been burning green wood.
If we weren’t doing this, we’d probably be fishing. Not sport fishing, the patient kind, standing in waders at first light, reading water. It’s the same appeal: you can’t rush it, you can’t fake it, and the thing you’re after is hidden until you learn to see. What gets us out of bed is the same thing that got us into that Noe Valley basement: someone needs help with something they don’t understand, and we understand it. That’s not a job description. That’s a way of being useful in the world.
Meet Our Team - The Person Behind Every Job
We’re the owner and founder of this branch, and after forty-two years, we’re still on ladders. We hold state licensure as required for chimney work in California, carry full insurance and bonding, and train every technician who works under our name to the same standard we demand of ourselves: level-2 camera inspections on every service call, documented with photos you can see and a plain-English verdict you can understand.
What separates us from a franchise technician sent from a dispatch center? We live here. We know that San Francisco’s marine layer corrodes metal caps faster than inland heat, that the clay soil in the Mission shifts masonry differently than the bedrock in Nob Hill, that a chimney in Sausalito faces salt air that eats mortar joints from the outside in. We source our materials accordingly, favoring Gelco and Olympia Chimney hardware for coastal durability, specifying Famco and Copperfield components where the job demands it.
On weekends, you’ll find us at the Alemany Farmers Market, not networking, just buying peppers and talking to people we’ve swept for twenty years. Our commitment to you is personal: if we touch your chimney, we stand behind it. No paperwork, no arguing. That’s not a slogan. That’s how we sleep at night.
Our Promise to San Francisco Homeowners
Our values aren’t framed on a wall. They show up in what we do when no one’s watching.
Krafted right. We use trained journeymen, proper materials, no shortcuts. A few years back, a homeowner in Emeryville called us after another company installed a liner that collapsed in six months. We pulled it out with a winch, found they’d skipped the insulation required by code, and did it over with the right materials from Olympia Chimney. Cost us a day we hadn’t planned. That’s the job.
Every time. The four hundredth inspection gets the same care as the first. We’ve swept the same chimney in the Mission District eleven times since 2014. The owner doesn’t watch anymore. She doesn’t have to.
Your home first. We work in your house the way we’d work in our mother’s. Boot covers, drop cloths, vacuum after ourselves. If we nick a mantel, we fix it before we mention it.
Standing behind it. The Keystone Standard: ninety days, in writing, no arguing. If it’s not right, we come back. We’ve honored that promise since 1984, and we intend to keep honoring it until we hang up our brushes.
Our Credentials
- State-licensed for chimney and fireplace work in California
- Insured & bonded for residential and commercial service
- 42+ years serving San Francisco homeowners
- Strong local reputation built on repeat customers and word-of-mouth referral
These aren’t decorations. They’re what lets you open your door to us. State licensure means we’ve met California’s examination and continuing-education requirements for work that affects your home’s safety. Insurance and bonding mean if something goes wrong, you’re not left holding the bag. Forty-two years means we’ve been here long enough to have swept for your neighbors, probably more than once. And a reputation built slowly, job by job, means we can’t afford to burn you - because in San Francisco, word travels, and we plan to be here when your grandchildren need their chimneys swept.
Rooted in San Francisco
We’ve swept chimneys in every neighborhood this side of the Bay, from the tight Victorians of the Mission District to the hillside homes of Noe Valley, from the fog-wrapped flats of Visitacion Valley to the wind-scoured ridges above Sausalito. We’ve worked through the Loma Prieta aftershocks, the dot-com boom that converted every fireplace to gas, the pandemic winters when San Francisco burned more wood than it had in decades. Our hours are Monday through Friday, 7:30 AM to 8:00 PM, Saturday and Sunday, 8:00 AM to 7:30 PM, because this is a craft, not an emergency room, and doing it right means doing it rested. The hearthstone is the stone the whole home gathered around. That’s what we keep. That’s what we’ve kept, here in San Francisco, since 1984.
Written by the team at Hearthstone Chimney Co. of San Francisco, serving San Francisco since 1984.