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Gas fireplace serviceLevel 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.
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AfterHow Much Does Chimney Repair Cost in San Francisco?
Chimney repair in San Francisco typically costs between $250 and $2,500, with most homeowners paying around $700 to $1,200 for common fixes like crown repair, repointing, or flashing replacement. A standard chimney sweep before any repair work runs $179 to $299, while major structural rebuilds can reach $6,000 or more depending on access and damage. We give every customer a written price before any work starts, so you’ll know your exact number before we touch a single brick.
San Francisco’s mix of 1920s stucco row houses, Victorian-era masonry, and mid-century fireplace inserts means no two chimneys age the same way. That’s why we price by the job, not by a menu on a website. But here’s what the 2026 market looks like for the repairs we do most.
Key Takeaways
- Most San Francisco chimney repairs land between $250 and $2,500, with $700 – $1,200 the sweet spot for common issues.
- Chimney crown repair or rebuild: $350 – $1,000 depending on size and crack severity.
- Mortar joint repointing (tuckpointing): $15 – $30 per square foot of chimney surface.
- Flashing repair or replacement: $300 – $900, higher on steep-pitch roofs common in Noe Valley and the Castro.
- Chimney liner installation (DuraFlex or Olympia Chimney systems): $1,800 – $4,500.
- We answer calls 24/7 with a live person and provide free, written estimates. Call (831) 534-3789.
Chimney Repair Cost Breakdown (2026)
Here’s what we charge across the San Francisco market. These ranges reflect typical residential jobs in neighborhoods from the Sunset to Bernal Heights, accounting for roof pitch, chimney height, and material availability.
| Repair Type | Typical Cost Range | What It Includes |
|---|---|---|
| Chimney sweep (pre-repair) | $179 – $299 | Full flue cleaning, creosote removal, basic safety check |
| Chimney crown repair | $350 – $1,000 | Crack sealing or full crown rebuild with proper overhang |
| Repointing (tuckpointing) | $15 – $30 per sq ft | Mortar joint removal and replacement, usually 10 – 40 sq ft of chimney face |
| Flashing repair/replacement | $300 – $900 | Step and counter flashing around the chimney base, includes roof sealant |
| Chimney cap installation | $150 – $450 | Stainless steel or copper cap, spark arrestor included |
| Damper replacement | $250 – $650 | Top-mount or throat damper, bracket and seal replacement |
| Liner installation (DuraFlex, Olympia) | $1,800 – $4,500 | Stainless steel liner, insulation, top plate, and connection to appliance |
| Firebox repair | $400 – $1,200 | Brick or refractory panel replacement, mortar repair inside the firebox |
| Partial rebuild (top 2 – 4 feet) | $1,500 – $4,000 | Teardown and rebuild of the chimney top, new crown, new cap |
| Full chimney rebuild | $5,000 – $12,000+ | Complete teardown to the roofline, full masonry rebuild |
These numbers are not placeholders. They represent what we actually quote in San Francisco, where labor rates, permit requirements, and roof access are different than in the East Bay or South Bay. For example, a liner installation in a two-story Marina District home with a steep roof costs more than the same job in a single-story Excelsior bungalow, simply because of ladder setup, fall protection, and time on the roof.
What Drives the Price Up
- Roof pitch and access. A 12/12 pitch in Diamond Heights requires scaffolding or roof brackets. A 4/12 pitch in the Richmond District doesn’t. The difference can add $200 – $600 to a flashing or crown job.
- Chimney height. Three-story Edwardians in Pacific Heights have chimneys that tower 15 – 20 feet above the roof. More height means more staging, more safety equipment, and more labor.
- Age of the mortar. Pre-1940 chimneys in San Francisco were often built with lime-based mortar. Matching it properly requires custom-mixed materials, not off-the-shelf Type S from a hardware store.
- Structural damage from earthquakes. We see chimneys cracked along the roofline after every significant quake. If the masonry has shifted, you’re looking at a partial rebuild, not a repoint.
- Permit requirements. San Francisco requires permits for any chimney rebuild that alters the structure. The permit fee and inspection schedule add $200 – $500 to the total.
What Keeps the Price Lower
- Early detection. A hairline crack in the crown caught during an annual inspection is a $350 fix. Left alone for three winters, it becomes a $2,500 rebuild.
- Single-story access. Homes in the Outer Sunset or Visitacion Valley with walkable roofs skip the scaffolding costs entirely.
- Small flue diameter. A 6-inch liner costs less in materials than an 8-inch or 10-inch liner, both of which are common in older San Francisco fireplaces.
- Good roof condition. If your roof around the chimney is solid, we don’t need to factor in repair work to adjacent shingles or underlayment.
What Affects Chimney Repair Pricing in San Francisco
San Francisco is not a cheap market for chimney work, and the reasons are specific to how this city is built. Here’s what moves the needle:
- Fog and moisture exposure. The Sunset, Richmond, and Ingleside sit in the fog belt. Chimneys there absorb moisture nearly year-round, which accelerates mortar breakdown and crown cracking. Repairs in these neighborhoods often need more extensive prep work than the same job in sunnier Mission Bay.
- Building age. Most of San Francisco’s housing stock dates from 1900 to 1950. Chimneys from that era weren’t built with modern flue liners or expansion joints. When we open them up, we frequently find hidden damage that changes the scope.
- Roof access. Row houses share chimney stacks. If your chimney abuts a neighbor’s house, we need coordinated access and sometimes neighbor permission for staging. It adds time, and time is labor.
- Seismic retrofitting requirements. San Francisco building codes now require chimney bracing or strapping during any significant rebuild. It’s a safety measure that protects your home in an earthquake, but it adds $300 – $700 to a rebuild project.
- Material availability. We install professional trade brands like DuraFlex, HeatShield, Gelco, Olympia Chimney, Famco, and Copperfield. These aren’t box-store products, and sometimes the specific component for a 1920s chimney needs to be ordered. Supply chain delays can extend timelines but don’t typically change the quoted price, because we lock it in writing before work begins.
- Chimney location within the house. A chimney running through the center of a home (common in Victorian floor plans) is structurally protected but harder to access for liner installation. An exterior chimney on a side wall (common in Sunset and Richmond row houses) is easier to reach but takes more weather abuse.
Common Chimney Problems in San Francisco Homes and What They Cost to Fix
When we inspect chimneys across San Francisco, from Sea Cliff to the Excelsior, the same issues come up again and again. Here’s how they break down by cost and what we do about them.
Chimney Crown Cracks: $350 – $1,000
The crown is the concrete slab at the very top of the chimney that sheds water away from the flue. In San Francisco’s wet winters, cracked crowns let water seep into the masonry behind the brick face. We see this constantly in fog-belt homes. A minor crack is a $350 repair with sealant and patchwork. A crown that’s crumbling needs a full pour with a proper drip edge and expansion gap, which runs $700 – $1,000.
Deteriorated Mortar Joints: $15 – $30 per Square Foot
Mortar is the glue between bricks, and in a city where the air carries salt and fog moisture, mortar erodes faster than the brick itself. Repointing, which means grinding out the old mortar and packing in new mortar matched to your home’s era, typically costs $15 – $30 per square foot of chimney face. An average San Francisco chimney has 20 – 40 square feet of exposed face, so a full repoint lands around $300 – $1,200.
Leaking Flashing: $300 – $900
Flashing is the metal barrier where the chimney meets the roof. When it fails, water runs down the chimney chase and into the attic. On steep San Francisco roofs, flashing repair takes longer because the technician needs roof brackets and fall protection. You’ll pay toward the higher end of the $300 – $900 range for a two-story home in Noe Valley or Glen Park with a 10/12 pitch.
Cracked or Missing Chimney Liner: $1,800 – $4,500
The liner is the stainless steel or clay tube inside your chimney that contains heat and combustion gases. In older San Francisco homes, clay tile liners crack over time, and the gaps let carbon monoxide leak into wall cavities. We install DuraFlex and Olympia Chimney stainless steel liner systems, which are the brands chimney professionals specify. The job involves dropping the old liner, sizing the new one to your flue, and connecting it properly to your fireplace or furnace. Most liner replacements run $1,800 – $4,500 in San Francisco.
Firebox Damage: $400 – $1,200
The firebox is the brick box where your fire actually burns. After decades of heat cycling, the mortar between firebrick crumbles and the brick itself can spall, meaning the face pops off. We repair fireboxes with refractory panels or firebrick rated for direct flame contact, not standard brick from a home center. Typical repairs run $400 – $1,200.
The Real Cost of Skipping a Repair
We hear it at least once a week: “It’s been like that for years, I just don’t use the fireplace much.” Here’s what that delay actually costs in San Francisco:
- A $350 crown crack becomes a $2,500 partial rebuild after two wet winters of freeze-thaw cycling and moisture penetration.
- A $300 flashing leak becomes a $3,000 attic repair plus mold remediation. Water travels fast in San Francisco’s damp climate.
- A cracked liner becomes a carbon monoxide risk. That’s not a cost issue, that’s a safety issue. If the liner fails, gas fumes don’t go up the flue. They go into your home.
- A wobbly chimney after a quake becomes a structural hazard. San Francisco is seismically active. A chimney that shifted during the 2014 Napa quake or any smaller event since may already be compromised.
The cheapest chimney repair is the one that happens early. An annual inspection costs $179 – $299. Most of the time, it catches problems while they’re still in the hundreds of dollars, not the thousands.
How to Save on Chimney Repair in San Francisco
- Get an inspection before problems compound. A yearly check from a technician who knows San Francisco chimneys will catch crown cracks before they split, flashing gaps before they leak, and mortar erosion before bricks loosen.
- Ask about bundling. If you need a sweep plus a repair, doing them on the same visit saves the second trip charge. We combine sweep and repair jobs to keep costs down.
- Use the right materials the first time. We install professional trade materials like HeatShield resurfacing and Copperfield caps because they outlast cheap substitutes. A $50 box-store cap that rusts in one foggy winter costs more in the long run than a $250 stainless cap that lasts 20 years.
- Act on minor issues during dry season. Roof work in San Francisco moves faster from May through October. Dry roofs are safer, which means less time setting up fall protection. You’ll likely come in at the lower end of the range.
- Call for a written estimate before you commit. Every Alcott job includes a written price before any work begins. That means no surprise charges at the end, and you can plan around the exact number. Estimates are free. Call (831) 534-3789.
Why We Price the Way We Do
Alcott Chimney Sweep has been serving San Francisco homeowners since 2002. Our owner, Ruben Castellano, built this company on a simple idea: a homeowner should know exactly who is coming to their house and exactly what the work will cost before the truck pulls up. That’s not a marketing slogan. It’s how we operate every single day.
We don’t compete with bargain-rate chimney services that quote low over the phone and pad the bill after they see the job. We charge a fair price for the actual work, put it in writing, and stand behind it with a written guarantee on every repair. If something we fixed fails within the coverage period, the second visit is free. That’s the 365-Day Done Right Promise, and it’s included on every job at no extra charge.
You’ll also know who’s coming. Every Alcott technician is background-checked and identity-verified through the Threshold Standard, which is part of our Threshold Group family of home-service companies. Before we arrive, you’ll receive the technician’s name and photo. When they ring the bell, they’ll be wearing a uniform and carrying a photo ID badge. No exceptions. We know that opening your door to a stranger is a real concern, whether you’re home alone, watching young kids, or just want to know exactly who’s on your property before they set foot there.
Our phones are answered around the clock by a live person. No voicemail, no callback queue. If your chimney is leaking at 11 p.m. during a storm, you’ll talk to someone who can help, not a recording.
The Chimney Repair Process in San Francisco
Here’s how a typical repair works when you call Alcott:
- You call (831) 534-3789. A live person answers, asks about the issue, and schedules a visit.
- You receive a technician’s name and photo before we arrive, so you know exactly who to expect at the door.
- The technician inspects the chimney and walks you through what’s wrong in plain English. No scare tactics, no pressure.
- You receive a written price for the full scope of work before anything starts. If the price doesn’t work for you, that’s fine. You owe nothing.
- We complete the repair using professional trade materials: DuraFlex liners, HeatShield resurfacing, Gelco sealants, Olympia Chimney components, Famco connectors, and Copperfield caps.
- You get a written guarantee on the repair, valid for 365 days. If the fix fails, we return free of charge.
FAQs – Chimney Repair Cost in San Francisco
How much does a standard chimney repair cost in San Francisco?
A common chimney repair in San Francisco, like crown repair, flashing replacement, or repointing, costs $250 – $2,500. The average job runs $700 – $1,200. Full liner installations start around $1,800, and partial rebuilds typically run $1,500 – $4,000. Call (831) 534-3789 for a free written estimate on your specific chimney.
Is it cheaper to repair or replace a chimney?
Repairing is almost always cheaper than rebuilding. A partial rebuild of the top 2 – 4 feet costs $1,500 – $4,000, while a full rebuild runs $5,000 – $12,000 or more in San Francisco. Most chimneys never need a full replacement if problems are caught early. We give honest assessments because we guarantee our repairs in writing. If the second visit is free when a repair fails, we have no reason to sell you work you don’t need. Call (831) 534-3789 for a straight answer on your chimney’s condition.
How much does a chimney crown repair cost?
Chimney crown repair in San Francisco costs $350 – $1,000. Small crack sealing runs $350 – $500, while a full crown rebuild with proper drip edge and expansion gap runs $700 – $1,000. Crown damage is one of the most common issues we see in fog-belt neighborhoods like the Sunset and Richmond, where constant moisture accelerates cracking. Call (831) 534-3789 for a free estimate.
Can you repair a chimney the same day?
Most minor repairs, like cap installation, small flashing patches, or crown crack sealing, can be completed same-day for $150 – $900. Larger jobs like liner installation or partial rebuilds require one to three days depending on access. We answer calls 24/7 with a live person, so if you need an urgent repair after a storm or before using your fireplace, call (831) 534-3789 and we’ll tell you exactly when we can be there.
How much does chimney leak repair cost?
Chimney leak repair in San Francisco typically costs $300 – $900 when the cause is flashing or crown damage. If the leak has progressed to interior water damage or rotted framing, the total can reach $1,500 – $3,000. Leaks on steep-pitch roofs in neighborhoods like Noe Valley or Corona Heights run toward the higher end because of fall protection requirements. Call (831) 534-3789 to schedule an inspection and get a written price.
Do I need a permit for chimney repair in San Francisco?
For most repairs, including crown work, repointing, flashing, and liner installation, no permit is required. San Francisco requires a permit only when the chimney structure itself is being torn down and rebuilt, which applies to partial and full rebuilds. We handle the permit process for you on any job that needs one. Call (831) 534-3789 if you’re not sure what your chimney needs.
Get Your Free Chimney Repair Estimate in San Francisco
If your chimney is leaking, cracking, or hasn’t been inspected in more than a year, don’t wait for a small problem to become a structural one. Ruben Castellano and the Alcott team have been repairing San Francisco chimneys since 2002, and we’re ready to help with yours.
You’ll get a written price before any work starts, a written guarantee on every repair, and a technician you’ve already seen by name and photo before they arrive. Call (831) 534-3789 any time, day or night. A live person answers, every single time. We’re proud to serve homeowners throughout San Francisco, from the Richmond and Sunset to Bernal Heights, Noe Valley, the Mission, and beyond. For more on our chimney repair work in the city, see our Chimney Repair in San Francisco page or head back to our home page to learn more about how we work.
Pricing reflects the San Francisco market as of 2026. Alcott Chimney San Francisco offers free estimates – call (831) 534-3789.
Written by Ruben Castellano, Owner at Alcott Chimney San Francisco, serving San Francisco since 2002.
What Our Customers Say
"Damper was stuck shut and I thought I'd need a new one. He freed it and lubricated it for almost nothing. Honest guys."
- Calvin M."Good chimney cleaning. They found a small gap in the mortar and quoted the repair, which was a bit more than I wanted to spend. Did the sweep and left the repair for later without any pressure."
- Stuart L."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.