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.
Gelco Chimney Cleaning in San Francisco, NY | Emberly Chimney Cleaners
We provide San Francisco Fireplace Services including independent Gelco chimney cleaning, inspection, and repair, and the short version is this: if your Gelco liner or damper was installed before 2010, there’s a good chance fog moisture and Loma Prieta-era shifting have quietly worked on it for years. We’re Emberly Chimney Cleaners, and our name is the inspection standard we work to: NFPA 211 Level 2, camera down the flue, written price before any work starts. Call (980) 580-8641 for a free estimate.
Why San Francisco Residents Choose Us for Gelco Service
Most chimney companies in San Francisco can sweep a flue. Few can tell you what they actually saw inside your Gelco liner, show you the footage, and hand you a written price before touching a single brick. That’s the difference Corrine Halstead built this company on. Corrine grew up in Inwood, at the northern tip of Manhattan, where century-old chimneys were everywhere and mostly ignored. She studied building trades technology at Bronx Community College and spent years on inspection and cleaning crews across all five boroughs before running Emberly Chimney Cleaners under the Haven Standard.
We’re an independent Gelco sales & service provider, not manufacturer-affiliated. That matters because we recommend what actually holds up in San Francisco’s damp, salty air, not what a brand rep wants us to push. We stock factory-matched Gelco components when a like-for-like repair makes sense, plus 316L stainless aftermarket liners and heavy-gauge dampers that outlast originals here. Every technician is background-checked, uniformed, and the license number sits on the page. Clause 1 of the Haven Standard means you get a written price, written scope, and written warranty before anyone starts.
Common Gelco Chimney Cleaning Problems We Solve in San Francisco

- Single-ply liner seam splits at offsets: Gelco’s single-ply stainless liners from the 2000s fatigue at corrugation points, and San Francisco’s post-1989 re-leveled foundations push chimney stacks out of plumb just enough to concentrate stress at offset bends. The camera shows a seam that’s opened like a zipper.
- Refractory mortar delamination in Victorian fireboxes: Gelco masonry restoration kits used spray-applied refractory mortar during Loma Prieta-era rebedding jobs. San Francisco’s near-daily marine layer keeps unpainted brick chronically damp, and that washcoat spalls off in sheets, not flakes.
- Tee body separation after long idle stretches: Bay Area Air Quality Management District Spare the Air no-burn days mean fireplaces sit cold for entire seasons. Then a permitted burn day arrives, and a sudden hot fire stresses the pre-installed tee body connection on post-2010 Gelco multi-ply liners until it separates from the liner wall.
- Top-sealing damper corrosion: Older Gelco top-sealing dampers exposed to San Francisco’s salt-tinted fog develop frame corrosion that seizes the plate shut or leaves it loose enough to rattle in the wind off Twin Peaks.
- Foam-stuffed flues hiding failed liners: We regularly find Victorian chimneys that were foam-sealed or brick-capped after Loma Prieta and never properly reopened. The Gelco liner underneath often hasn’t been inspected in three decades.
Before
AfterGelco Service in San Francisco: What Local Conditions Mean for Your Equipment
Here’s something specific to San Francisco that wouldn’t show up the same way in Oakland or Daly City: the 1989 Loma Prieta earthquake cracked flue liners in ways that are invisible from the firebox. In the Western Addition, nearly one in four Gelco chimney inspections we perform reveals a foam-stuffed or brick-capped flue that was sealed after the quake and never properly reopened before a fireplace was used again. The homeowner lights a fire on a rare permitted burn day, smoke pours into the living room, and the camera shows a liner that’s been quietly deteriorating behind a foam plug for thirty-plus years. Moisture from the permanent fog layer has been working the mortar joints the entire time. What looks like a simple cleaning is often a structural assessment. Clause 4 of the Haven Standard requires a documented photo record on every job, so you’ll see exactly what we see before any repair conversation begins.
Gelco Models & Products We Service in San Francisco

We work on Gelco Single-Ply Stainless Liners, common in 2000s-era San Francisco Victorian retrofit jobs, and Gelco Multi-Ply Flexible Liners with pre-installed tee bodies, typical of post-2010 retrofits. We also handle Gelco masonry chimney restoration kits with spray-applied refractory mortar. For parts, we install factory-matched Gelco components when a like-for-like repair preserves the original warranty structure, but more often we recommend aftermarket 316L stainless liners and heavy-gauge dampers because they simply hold up better in San Francisco’s damp, salty air. Materials are sourced from DuraFlex, HeatShield, Gelco, Olympia Chimney, Famco, and Copperfield through Haven’s buying network, which keeps pricing honest.
Gelco Service Pricing in San Francisco
Expect a standard Gelco chimney cleaning and Level 2 camera inspection in San Francisco to run between $280 and $480 depending on flue height and access. If we find liner damage or damper corrosion, repairs start around $350 for isolated seam work. Full liner replacement with 316L stainless typically lands between $2,200 and $4,500 depending on the flue run and roof access, which is often steep in neighborhoods like Noe Valley and the Castro. A written estimate costs nothing, and it includes the camera footage, the scope in writing, and the warranty in writing before any work begins. Call (980) 580-8641 for an exact quote.
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.
FAQs - Gelco Chimney Cleaning in San Francisco
Spare the Air no-burn days can keep San Francisco fireplaces idle for entire seasons, which means moisture intrusion, nesting, and debris buildup go unnoticed, and creosote hardens into a glassy Class III glaze that’s harder to remove. Then a permitted burn day hits and a cold, damp system gets a sudden hot fire, which is exactly when thermal stress failures like tee body separation show up. The fix is a pre-season sweep and Level 2 camera inspection before burn season starts. Call (980) 580-8641 to book one.
No. The 1989 earthquake shifted chimney stacks throughout San Francisco, and the damage often sits in flue liner seams and mortar joints you cannot see from the firebox. A single-ply Gelco liner from that era is now 30-plus years old, and fog moisture has been working it the whole time. The only way to know is a Level 2 camera inspection, which we include on every visit. If money’s tight, a visual check will at least rule out the worst.
Because San Francisco’s near-daily marine layer keeps brick chimneys damp year-round, and moisture migrating through unpainted brick causes the spray-applied refractory mortar from Gelco restoration kits to delaminate and spall. It’s not a usage problem; it’s a moisture exposure problem. Repointing with the right mortar formulation and addressing the moisture entry point at our Chimney Cap & Crown in San Francisco is the actual fix. Our crews do this work regularly in the Richmond and Sunset districts, where fog sits the longest.
Yes. Older Gelco top-sealing dampers exposed to San Francisco’s salt-tinted fog develop frame corrosion that seizes the plate or leaves it open just enough to rattle in onshore wind. We repair isolated damper component failures where the frame is still sound, but we recommend heavy-gauge aftermarket dampers for chimneys with direct fog exposure, which is most rooftops in Noe Valley. Call (980) 580-8641 and we’ll get a camera on it.
Usually, yes, but it starts with removing the foam carefully and running a Level 2 camera inspection to see what the liner actually looks like after three decades sealed behind a plug. In the Western Addition and Mission District, we commonly find the Gelco liner intact but moisture-damaged at the crown. Sometimes it needs full replacement. You’ll see the footage yourself and get a written price before any work starts.
Service Areas Near San Francisco

We serve the full San Francisco service area, including Noe Valley, the Castro, the Western Addition, the Richmond, and the Sunset, plus surrounding Bay Area communities. Our sister teams also provide Gelco service in Columbus and Gelco service in Fort Worth for homeowners with properties in those regions.
Book Your Gelco Service in San Francisco Today
If your Gelco chimney hasn’t been inspected since Loma Prieta, or you’ve skipped a season and want certainty before burn days start, call (980) 580-8641. We answer live, 24/7, and we’ll get you on the schedule with a written price before any work begins.
Written by Corrine Halstead, Owner at Emberly Chimney Cleaners, serving San Francisco under the Haven Standard since 2009.





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