Fast, Reliable Chimney Liner & Rebuild Across Hillsborough
Chimney liner replacement and rebuild work in Hillsborough typically runs $2,800-$8,500 depending on flue count and liner material, with most multi-flue estate jobs completed in two to three days. Our Chimney Liner & Rebuild crews make the run from San Francisco to Hillsborough daily, and we know the 94010 ZIP well enough to bring the right diameter liners and crown forms without a second trip. If your chimney is drafting poorly, showing brick spalling, or failing a pre-sale inspection on the Peninsula, call (855) 408-5567. A live person answers, 24 hours a day.
We’ve been working on Hillsborough chimneys since the early 1980s. The town is one of only a handful of incorporated places in the country that prohibits all commercial and multi-family construction, which means every job we take here is a private estate, and nearly every estate was built between the 1920s and 1950s with two to four original masonry fireplaces as standard. A chimney technician in Hillsborough is almost never servicing a single flue. Multi-stack, multi-flue jobs on 70-to-100-year-old brick chimneys are what we expect when we cross Skyline Boulevard.
Why Hearthstone Chimney Co. of San Francisco Is Hillsborough’s Preferred Chimney Liner & Rebuild Company
Warren Eckhart founded this company in 1984, and we’ve built our reputation on the kind of work that gets talked about at neighborhood gatherings on El Cerrito Avenue and Carolan Avenue. Hillsborough homeowners tend to stay in their homes for decades, and they remember which contractors showed up on time, explained the problem plainly, and left the job site clean. Our 90-Day Done Right Promise is in writing with no arguing. If it’s not right, we come back. That matters in a town where your next customer lives three doors down.
Our Level-2 camera inspections end with photos you can see and a plain-English verdict. No jargon, no scare tactics. We document like engineers and explain like craftsmen. Background-checked, uniformed technicians complete most jobs in a single visit, and the number on your estimate is the number on your invoice. Calls are answered by a live person every hour of every day, not a voicemail queue.
Response time to Hillsborough is typically same-day or next-day during the busy season from October through March, when marine-layer moisture and winter rains accelerate the deterioration that’s been creeping through aged mortar joints all summer.
Our Chimney Liner & Rebuild Services in Hillsborough
Stainless Steel Liner Installation
Stainless steel liner installation is the backbone of what we do in Hillsborough. The original clay tile flue liners in these 1920s-1950s estates were never designed for modern gas inserts, and decades of thermal cycling have left them cracked, spalled, or missing entirely. We install DuraFlex and Olympia Chimney stainless steel liners rated for both wood-burning and gas applications, with proper insulation blankets that meet California building code for zero-clearance installations. A typical single-flue stainless steel liner in Hillsborough runs $2,800-$4,200; multi-flue estate jobs with four or more flues range from $6,500-$8,500.
On a Tudor Revival estate near the Tilton Avenue historic district, our crew relined a four-flue chimney stack where the original clay tiles had spalled from decades of marine-layer moisture. We installed DuraFlex stainless steel liners for flues serving the living room, den, and two bedrooms, preserving the original decorative dampers while adding spark arrestors. The homeowner had lived there thirty-two years and never realized the flues were compromised until a pre-sale inspection flagged third-degree glazed creosote in two of the four.
Flexible Liner Systems
Flexible liners solve the offset and bend problems common in Hillsborough’s older masonry. Many of these chimneys were built with multiple directional changes between the firebox and the crown, and rigid stainless steel won’t navigate them without breaking the flue wall. We use DuraFlex flexible liners with corrugated walls that conform to existing channels while maintaining proper draft. Flexible liner jobs in Hillsborough typically fall between $3,200-$5,000 for a single flue, depending on length and access. These are particularly useful for bedroom fireplaces on second floors where the chimney run is long and irregular.
Liner Replacement
Full liner replacement becomes necessary when the existing liner, whether clay tile or an older metal insert, has deteriorated beyond repair. In Hillsborough, we see this most often after water infiltration through cracked mortar crowns rusts out existing metal liners, or when third-degree glazed creosote has bonded so thoroughly to clay tile that cleaning would destroy the flue. Liner replacement costs in Hillsborough range from $3,500-$6,000 per flue, with multi-flue discounts for estates. We pull the old material, inspect the surrounding masonry with our camera system, and install new liners with proper top-sealing dampers and spark arrestors from Famco.
Partial and Full Chimney Rebuild
Partial rebuilds address the crown, shoulders, and upper courses of brick where marine-layer moisture does its worst damage. A typical partial rebuild in Hillsborough runs $4,500-$7,500. Full chimney rebuilds, reserved for structures where the stack has shifted, the wythes have separated, or spalling brick has compromised structural integrity, range from $12,000-$22,000 depending on height, scaffolding requirements, and whether we’re preserving or replacing decorative corbelling and caps. We source matching brick through Copperfield supply networks when possible, and we document every stage with photos for the homeowner and any required permit file.
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.
Trusted Brands We Service in Hillsborough
We work exclusively with professional-grade materials from DuraFlex, HeatShield, Gelco, Olympia Chimney, Famco, and Copperfield. No builder-grade substitutes. For Hillsborough estates with custom requirements, we stock common diameters and termination fittings locally to avoid the two-week special-order delays that can derail a pre-sale timeline or a winter project. Gelco caps and Famco dampers integrate cleanly with the decorative ironwork common in Spanish Colonial and Mediterranean Revival chimneys here, and Olympia Chimney’s multi-flue caps can be powder-coated to match existing roof hardware.
Common Chimney Liner & Rebuild Problems We See in Hillsborough Homes
- Third-degree glazed creosote in multiple flues after years of neglect. Homeowners wait five to ten years between cleanings, then discover hardened, tar-like creosote that simple brushing won’t remove. In Hillsborough’s climate, where fireplaces burn low and slow for atmosphere rather than heat, this buildup is proportionally heavier per burn hour than in colder regions. The glazed layer insulates the flue, accelerates deterioration of clay tile, and creates a severe chimney fire hazard.
- Crumbled mortar crowns allowing water infiltration. The persistent fog and sustained winter rain from October through April drive moisture into aging mortar joints on 70-to-100-year-old chimneys. Once the crown fails, water runs down the flue wall, rusting stainless steel liners, rotting adjacent framing, and spalling brick faces from freeze-thaw cycles during the Peninsula’s occasional cold snaps.
- Original clay tile liners spalled by marine-layer moisture. Hillsborough’s coastal hill location traps fog against chimney stacks for weeks at a time. Clay tile absorbs this moisture, expands, and flakes away in layers. The resulting rough surface catches creosote and reduces flue diameter, causing smoking fireplaces and carbon monoxide risks.
- Decorative dampers that no longer seal, discovered during pre-sale inspections. Many Hillsborough homes change hands after decades with one owner, and the buyer’s inspection often reveals multiple flues with failed dampers, no spark arrestors, and liners that predate modern safety standards. These findings trigger emergency liner replacements to close escrow on schedule.
Pricing for Chimney Liner & Rebuild in Hillsborough, CA
We’re plain about what things cost. Here’s what Hillsborough homeowners typically see on our estimates:
- Single-flue stainless steel liner installation: $2,800-$4,200
- Flexible liner system for offset flues: $3,200-$5,000
- Full liner replacement with crown repair: $3,500-$6,000 per flue
- Partial chimney rebuild (crown, shoulders, upper brick): $4,500-$7,500
- Full chimney rebuild: $12,000-$22,000
- Level-2 camera inspection with photo report: $289-$389
Multi-flue estates receive proportional pricing, and we apply our standing $50 Off Any Repair Over $250, plus a permanent 5% Senior and Veteran discount. The number on your estimate is the number on your invoice. Call (855) 408-5567 for a free, no-obligation assessment of your specific chimney.
We Also Serve Cities Near Hillsborough
Our crews work throughout the Peninsula daily. If you’re in Hillsborough, Burlingame, Millbrae, San Mateo, or San Bruno and need chimney liner or rebuild work, we can typically schedule within 24-48 hours. The same live-answer phone line, the same upfront pricing, the same 90-Day Done Right Promise applies across every city we serve.
Serving Hillsborough, CA - Our Local Coverage Area
We’re based in the Hillsborough 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 - Chimney Liner & Rebuild in Hillsborough
Because Hillsborough bans all commercial properties, every chimney job here involves multiple flues on estates built between the 1920s-1950s, often with original clay tile liners and aged mortar joints that require full stainless steel liner systems rather than simple repairs. The original clay tile has typically spalled or cracked from decades of thermal cycling and marine-layer moisture, and patching individual tiles in a multi-flue stack is neither durable nor cost-effective. Call (855) 408-5567 for a camera inspection that will show you exactly what your flues look like - estimates are free.
The town sits in the coastal hills of the Peninsula where persistent marine-layer fog and sustained winter rain from October through April drive moisture into aging mortar joints and brick faces, accelerating spalling and efflorescence on older masonry chimneys. This same moisture penetrates cracked clay tile and rusts older metal liners from the outside in. Stainless steel liners with proper insulation and top-sealing dampers are the only long-term solution we’ve found that holds up to this environment. We can assess your chimney’s moisture exposure during a free estimate.
We install DuraFlex, Olympia Chimney, and Gelco liners exclusively, with Famco dampers and Copperfield termination hardware as needed for custom applications. These are professional-grade materials, not builder-grade substitutes, and we stock common sizes to avoid delays on time-sensitive jobs like pre-sale repairs. For historic homes where decorative dampers must be preserved, we fabricate custom transition pieces that maintain original appearance while meeting modern safety standards. Call (855) 408-5567 to discuss your specific chimney configuration.
Every twelve months, regardless of use frequency. Paradoxically, the mild Peninsula climate means most Hillsborough fireplaces see only occasional, low, smoldering decorative fires, and these deposits create proportionally heavy creosote per burn hour. Infrequent use is a hidden hazard, not a safety benefit, because homeowners skip inspections for years until a pre-sale or remodeling discovery reveals third-degree glazed creosote and crumbling mortar crowns across multiple flues. Our $89 Seasonal Tune-Up includes a basic inspection and cleaning recommendation.
Yes. We regularly preserve original decorative dampers in Tudor Revival, Spanish Colonial, and Mediterranean estates while installing new stainless steel liners and modern spark arrestors. The key is custom-fabricated transition collars that seal between the new liner and the existing damper throat without altering the visible ironwork. Warren Eckhart has overseen these integrations for over four decades, and our technicians document every fitting with photos before and after. Call (855) 408-5567 to schedule a Level-2 inspection that includes a preservation plan for your specific damper.
Written by Warren Eckhart, Owner at Hearthstone Chimney Co., serving Hillsborough and the Peninsula since 1984.