Trusted Chimney Repair for San Francisco Homeowners
Affordable Chimney Repair in San Francisco, CA typically costs between $450 and $3,800 depending on the scope, and most repairs can be scheduled within 24 to 48 hours. Hearthstone Chimney Co. has been fixing chimneys across San Francisco since 1984, and our technicians complete most jobs in a single visit with no-hassle upfront pricing. Call (855) 408-5567 - a live person answers, day or night.
San Francisco’s chimneys take a beating. The salt air off the Pacific corrodes metal flashings. The summer fog cycle wicks moisture into brickwork, then the sun bakes it out, expanding and contracting the mortar until it crumbles. In neighborhoods like Noe Valley and Visitacion Valley, we’ve seen original 1920s chimneys where the mortar has turned to sand, and in the Mission District, we’ve found earthquake-shifted stacks pulling away from the wall - which is why homeowners there often need Chimney Repair - Noe Valley specialists who understand local conditions. Warren Eckhart started this company over 42 years ago because he believed homeowners deserved a square deal: photos they could see, a plain-English verdict, and a crew that shows up when promised. That hasn’t changed. Every repair we make is backed by our 90-Day Done Right Promise - in writing, no arguing. If it’s not right, we come back.
What Our Chimney Repair Service Includes
Mortar Repointing
Mortar repointing is the process of grinding out deteriorated mortar between bricks and packing fresh, matched mortar into the joints. In San Francisco, we repoint chimneys most often in homes built before 1960, where the original lime mortar has succumbed to decades of fog and wind. Our crew uses mortar mixes compatible with your existing brick - harder Portland cement for newer construction, softer lime-based mixes for historic Victorians in Alameda and Noe Valley - so the repair moves with the structure instead of cracking again in two seasons.
Spalling Brick Repair
Spalling happens when water freezes inside brick faces, popping off layers like peeling bark. We see it constantly on San Francisco chimneys that lack proper caps or where failed flashing has let runoff saturate the stack. Hearthstone technicians cut out spalled bricks to sound substrate, source matching replacements from local suppliers familiar with the Bay Area’s clay compositions, and reset them with proper drainage angles so water sheds instead of pools.
Chimney Waterproofing
Waterproofing is a breathable silane or siloxane treatment applied to clean, sound masonry that repels liquid water while letting vapor escape. We apply it after repointing or spalling repairs, never as a band-aid over active deterioration. In San Francisco’s climate, a proper waterproofing job from Hearthstone lasts 7 to 10 years, and we document the application date on your inspection report so you know when to re-treat.
Flashing Repair
Flashing is the metal seam where your chimney penetrates the roofline, and it’s the single most common leak point we find in San Francisco homes. Our crews work with copper, galvanized steel, and lead - whatever matches your roof system - and we always inspect the underlying decking for rot before sealing anything back up. In the hillside neighborhoods of Sausalito and Tiburon, where wind-driven rain hits at odd angles, we install stepped counter-flashing with reglets cut into the masonry for a mechanical seal that caulk alone can’t match.
Chimney Rebuilding
When a chimney has shifted off its foundation, suffered major earthquake damage, or deteriorated past the point of spot repair, we rebuild. This means dismantling to a sound course, pouring a new crown, and reconstructing with matching brick and proper structural ties to the building frame. Warren Eckhart personally reviews every rebuild estimate in San Francisco to confirm we’re not tearing down what could be saved, or patching what needs to come out. Our rebuilds include a new concrete crown sloped for drainage and a proper cap from Famco or Copperfield.
Tuckpointing
Tuckpointing is the decorative and functional practice of cutting narrow grooves into mortar joints and filling them with a contrasting lime putty line, common in San Francisco’s historic brickwork. It’s more than cosmetic - the technique seals joints against moisture while preserving the architectural character the city requires in designated historic districts. Our masons match the original joint profile, whether it’s struck, weathered, or grapevine, and we pull permits when the work touches a landmark property.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Brands We Service for Chimney Repair
We’ve installed and repaired thousands of components from Gelco, Olympia Chimney, and Famco over our 42 years in San Francisco. Gelco caps and dampers hold up particularly well against the salt air we get in the Sunset and Richmond districts - we’ve serviced hundreds of their units and keep their stainless hardware in stock. Olympia Chimney’s liner systems are our go-to for gas conversions in older San Francisco flats where the original terracotta liner can’t handle modern appliance exhaust temperatures. Famco’s custom-fabricated caps fit the odd-sized flues we find in pre-war construction from Chinatown to the Mission District.
We also work extensively with Copperfield’s professional-grade repair mortars and sealants, and with HeatShield for cerfractory resurfacing of deteriorated flue liners. Whether you have a Gelco cap, an Olympia liner, or hardware from another manufacturer entirely, we can source the right parts and install them to factory specification. No builder-grade substitutes, no improvising with whatever’s in the truck.
Signs You Need Chimney Repair Right Now
- White efflorescence or green moss on exterior brick. These are moisture signatures. Efflorescence is mineral salts left behind as water evaporates through the masonry, and moss means the brick is staying wet long enough to support growth. Both indicate failed mortar joints, a compromised crown, or flashing leaks that will accelerate deterioration through San Francisco’s wet season.
- Bits of brick or mortar in your fireplace or on the roof below the chimney. This is spalling or joint failure in progress. The material coming down had to come from somewhere, and that somewhere is your chimney structure. We’ve responded to calls in Daly City and South San Francisco where homeowners ignored this sign for one season and faced a partial rebuild the next.
- Rust stains on the chimney face or roof near the flashing. Rust means metal is corroding, and the metal most exposed on a chimney is the flashing or the damper frame. In San Francisco’s marine environment, galvanized steel can fail in under 15 years. We inspect the full flashing assembly, not just the visible counter-flashing, because the step flashing hidden under shingles is often where the real leak starts.
- Smoke filling the room when you light a fire. This can indicate a blocked flue, but it can also mean a shifted chimney with a compromised flue liner creating backdraft conditions. After ruling out a simple obstruction, we run a Level-2 camera inspection to see if the liner has cracked or the chimney has tilted enough to break the draft. In earthquake country, structural shifting is always on our checklist.
- A new water stain on the ceiling near the chimney breast. By the time you see this inside, water has already traveled through the roofing, decking, and insulation. The source is almost always failed flashing or a cracked crown letting water behind the masonry. We trace the actual entry point rather than sealing the interior stain, because covering the symptom guarantees the structure keeps rotting.
Our Chimney Repair Process - Step by Step
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Schedule your inspection. Call (855) 408-5567 and a live person will answer, 24 hours a day. We’ll find a window that works for you, usually within 24 to 48 hours for non-emergencies. Same-day service is available for active leaks or structural concerns.
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Level-2 camera inspection and documentation. Our technician arrives in uniform, background-checked, and equipped with a video scanning system. We photograph every defect from the flue interior to the crown, and we show you the footage on site. You get a plain-English verdict, not a technical manual - this is cracked, this is why it matters, this is what we recommend.
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Written estimate with upfront pricing. Before any work begins, you receive a detailed estimate with line-item costs. The number on the estimate is the number on the invoice. We explain where the price comes from, what factors could change it (hidden rot, for instance), and how long the repair will take.
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Professional repair with documented materials. Our crew arrives with the specified materials - DuraFlex liner, HeatShield resurfacing compound, Gelco or Famco cap, Olympia Chimney components - and completes most repairs in a single visit. We photograph the finished work and note any maintenance recommendations for your records.
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Final walkthrough and written guarantee. You inspect the repair with our technician, ask any remaining questions, and receive documentation of the 90-Day Done Right Promise. If anything isn’t right, we come back. No paperwork to file, no argument about whether the issue is “covered.” We stand behind it because we plan to be serving San Francisco for decades to come.
How Much Does Chimney Repair Cost in San Francisco?
Best Chimney Repair in San Francisco, CA pricing reflects the city’s labor costs, access challenges on steep lots, and the premium materials required for a marine climate. Here’s what we typically see:
- Tuckpointing or spot mortar repointing: $450-$1,200 for accessible sections of a standard residential chimney
- Spalling brick repair (localized): $680-$1,800 depending on brick matching requirements and height
- Flashing repair or replacement: $550-$1,400 for standard roof pitches; steep or tile roofs run higher
- Chimney waterproofing treatment: $380-$950 based on square footage and prep work needed
- Partial chimney rebuild (above roofline): $2,400-$4,800
- Full chimney rebuild including foundation: $5,500-$12,000+ for historic or structurally compromised stacks
Several factors move these numbers. Access is the big one in San Francisco - chimneys on three-story Victorians with no rear yard require scaffolding or boom lifts that add labor hours. Matching century-old brick can require sourcing from specialty suppliers in Oakland or beyond. And the scope often expands once we open things up: a flashing repair can reveal rotted roof decking, or repointing can expose a liner that needs HeatShield resurfacing.
The best way to avoid overpaying is to get a detailed, written estimate with line-item costs before work starts - which is exactly what Hearthstone provides. Our estimates are free, and we offer a free second opinion on any written estimate from another company. Call (855) 408-5567 to schedule yours.
Chimney Repair Near San Francisco - Our Service Area
We repair chimneys throughout San Francisco proper and in the surrounding communities where many of our longtime customers have relocated. Our typical response time is same-day to 48 hours in the city, and within 72 hours for Chimney Repair in Mission District, Chimney Repair in Chinatown, Noe Valley, Visitacion Valley, and the Richmond and Sunset districts. We also serve Daly City, South San Francisco, Sausalito, Tiburon, Emeryville, Oakland, and Alameda on scheduled routes. If you’re unsure whether we cover your address, call - a live person will tell you straight.
Serving San Francisco, CA - Our Local Coverage Area
We’re based in the San Francisco area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Frequently Asked Questions - Chimney Repair in San Francisco
Chimney repair fixes structural and functional damage to the chimney stack, crown, flashing, or liner, while cleaning removes combustible creosote deposits from the flue. You might need both, but they are distinct services with different tools, materials, and safety protocols. If you’re unsure which you need, schedule an inspection and we’ll tell you exactly what condition your system is in.
Most repairs we perform in San Francisco - repointing, flashing replacement, waterproofing, cap installation - are completed in a single visit of 3 to 6 hours. Larger projects like partial rebuilds may take 1 to 2 days, and full rebuilds with foundation work can run 3 to 5 days. We give you a specific time estimate with your written quote, and we don’t leave scaffolding or materials in your yard overnight without cause.
Typical repairs range from $450 for localized tuckpointing to $4,800 for a partial rebuild, with most homeowners spending between $800 and $2,200 for standard mortar and flashing work. Full rebuilds start around $5,500. Your exact cost depends on access, materials matching requirements, and what we find once work begins. Call (855) 408-5567 for a free, no-obligation estimate with upfront pricing.
Yes. We are experienced with all three brands and stock common repair parts for Gelco dampers and caps, Olympia Chimney liner systems, and Famco custom-fabricated components. If your chimney has hardware from another manufacturer, we can source and install compatible professional-grade replacements. We do not use builder-grade substitutes.
Yes. A live person answers our phones 24 hours a day, 7 days a week, and we prioritize active leaks, structural damage, and post-earthquake safety concerns. For true emergencies - a chimney struck by lightning, a partial collapse, or sudden water intrusion during a storm - we aim to have a technician on site within hours. Call (855) 408-5567 anytime.
Every repair is covered by our 90-Day Done Right Promise, backed in writing with no paperwork required if you need us back. If the repair fails due to our workmanship or materials within 90 days, we return and make it right at no charge. For materials like DuraFlex liners and HeatShield resurfacing, manufacturer warranties may extend beyond our labor guarantee - we document these for your records.
Clear a path to your fireplace and move any fragile items from the mantel, as vibrations from masonry work can travel. If the repair involves exterior work above the roofline, ensure our technician has access to your yard or driveway for ladder or scaffold placement. We’ll handle permits if required, and we’ll protect your floors and furnishings with drop cloths. Questions about your specific setup? Call (855) 408-5567 and we’ll walk you through it.
Schedule Your Chimney Repair Service in San Francisco Today
Call (855) 408-5567 now and a live person will answer, 24 hours a day. We’ll schedule your free estimate at a time that works for you, provide upfront pricing with no surprises, and back every repair with our 90-Day Done Right Promise in writing. Hearthstone Chimney Co. has provided San Francisco Chimney Repair since 1984, and we plan to be here when you need us again. A square deal, done right - that’s the Keystone Standard.
Written by Warren Eckhart, Owner at Hearthstone Chimney Co., serving San Francisco since 1984.