Sweep & inspection
Caps & crowns
Flue relining
Masonry repair
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.
Gelco Chimney Cleaning in Redwood City, CA
We provide independent Gelco chimney cap and damper service across Redwood City, from sweeping and inspection to cap replacement and crown repair. The thing that makes our Gelco work different here is simple: most Redwood City caps fail from bay moisture and seismic-shifted masonry, not creosote. That changes what we look for on every pre-1950 chimney. Call (844) 980-4364 for a free estimate. We answer 24/7.
Why Redwood City Residents Choose Us for Gelco Service
We’re not a generalist handyman outfit. We work exclusively with professional-grade chimney brands like Gelco, DuraFlex, HeatShield, Olympia Chimney, Famco, and Copperfield. When a Gelco cap rusts through at the screen weld or a damper gasket hardens, we know the part because we handle these systems every week across the Peninsula. Raul Escobar, our owner, spent years in the trade before starting Chimney Cleaning Fremont in 2011, and he built the crew around one standard: repair what can be repaired, replace what can’t, and never leave a homeowner guessing. We show you the damaged part before we touch it. That is how we earn trust in Redwood City.
We’re an independent Gelco service provider. No manufacturing affiliation, no factory-authorized badge. We say that plainly on every job because it matters: our loyalty is to the homeowner, not a brand’s parts catalog. If a Gelco part is the right fix, we use it. If a quality USA-fabricated stainless cap fits the crown better, we tell you that too.
Styles & brands we work with
- Sweep & inspection
- Caps & crowns
- Flue relining
- Masonry repair
- Gas fireplace service
Common Gelco Chimney Cleaning Problems We Solve in Redwood City
- Rusted screen welds on galvanized and early stainless caps. Wind-driven rain off the bay hits Redwood City chimneys year-round, not just in winter. We see Gelco caps with the screen rusted through at the welds even on fireplaces that barely get used. The cap still looks fine from the ground, but the screen is gone and embers can get out.
- Hardened top-seal damper gaskets. Gelco chimney cap damper assemblies have a gasket that seals the flue when the damper is closed. After a decade of Redwood City’s mild-but-wet winters, that gasket hardens and loses its seal. Cold damp air slips down the flue, and the steel collar starts corroding quietly.
- Snapped cap mounting legs on shifted brick crowns. On pre-1950 homes in Mount Carmel and Eagle Hill, original brick chimneys have absorbed 120-plus years of seismic shaking along the San Andreas fault zone. The crown is rarely level. Gelco cap legs seize, bolt heads snap, and the cap sits crooked or works loose.
- Clogged multi-flue cap screens. Older Gelco multi-flue caps sized for two or three small flues collect creosote flakes and bay grit faster than you’d expect. Draft drops, smoke backs up into the room, and the fireplace runs lazy. A quick screen cleaning fixes it, but if the cap is rusting too, cleaning buys time, not safety.
- Loose or missing caps after noticeable earthquakes. After the 1989 Loma Prieta aftershocks, local sweeps in Redwood City got calls about bricks shifted off chimneys in the older downtown blocks. Any cap, Gelco included, is only as solid as the crown beneath it. We check the cap mounting and the crown on every older home we touch.
Gelco Service in Redwood City: What Local Conditions Mean for Your Equipment
Redwood City caps take a beating from wind-driven rain coming off the bay all year, not just in winter. That is the single biggest difference between servicing a Gelco cap here and in, say, an inland city with dry summers and quiet winters. Moisture intrusion and rust, not creosote buildup, drive most of our Gelco cap and damper calls. Add the older housing stock, Victorians, Craftsmans, and Edwardian row houses near downtown with original brick chimneys that have shifted from decades of seismic micro-movement, and you get a pattern: a Gelco cap that would last twenty years on a flat, stable crown fails in ten because the mounting surface moved and the bay rain never stopped. On one 1900s Edwardian near Mount Carmel, a homeowner’s multi-flue Gelco cap had rusted through at the screen welds and one mounting leg had cracked loose where the original brick crown sat out of level. We pulled the failed cap, repaired the crown and repointed the shifted mortar joints, then seated a new stainless multi-flue cap sized to the actual, slightly skewed flue spread so it drafts cleanly and sheds bay rain. The owner said a prior sweep had just caulked around the old cap and moved on. That is what we do differently.
Gelco Models & Products We Service in Redwood City
We service Gelco Top-Mount Multi-Flue Caps, Gelco Single-Flue Stainless Caps, Gelco Chimney Cap Damper assemblies, and Gelco Ventilated Rain Caps. When a Gelco part fits the original crown layout, we use it. When the flue arrangement has shifted and an OEM retrofit no longer seats correctly, we move to a quality USA-fabricated stainless cap sized to the actual spread. No forcing parts that don’t fit. No padding the job with a replacement you don’t need. If a Gelco cap or damper is structurally sound but the seal or screen has failed, we repair it rather than push a full replacement. We are an independent shop, not a distributor, so the right part wins every time.
See the difference
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After
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AfterGelco Service Pricing in Redwood City
Gelco cap and damper service in Redwood City is priced per job by written estimate. What drives the cost: whether we’re sweeping and inspecting, repairing a screen or gasket, replacing a single cap, or rebuilding a shifted crown before seating a new multi-flue cap. A chimney sweep with inspection typically runs $180 to $340. Cap replacement ranges from $350 to $900 depending on flue size and crown condition. Top-seal damper replacement runs $400 to $950. Crown repair, when mortar joints have shifted, adds $500 to $1,400. These are typical ranges, not a quote. Your written estimate sets the final price.
| Service | Typical Redwood City Range |
|---|---|
| Chimney sweep with inspection | $180 – $340 |
| Gelco cap replacement | $350 – $900 |
| Top-seal damper replacement | $400 – $950 |
| Crown repair / repointing | $500 – $1,400 |
Call (844) 980-4364 for an exact quote. Estimates are free, and we show you photos of what we found before any work starts.
Serving Redwood City, CA – Our Local Coverage Area
We serve Redwood City and nearby communities. Use the map below to see the area we cover. If you’re nearby, we can almost certainly help.
FAQs – Gelco Chimney Cleaning in Redwood City
If the rust is only on the screen and the cap body is solid, we can replace the screen and keep the cap. If the rust has moved into the cap frame or mounting legs, a replacement is the safer route, because a failed mounting leg on a Redwood City brick chimney is a cap waiting to come off in the next windstorm. We’ll show you photos and explain what we’d do before you spend a dollar. Call (844) 980-4364 for a free estimate.
Yes. We install Gelco top-seal damper assemblies on older brick chimneys when the flue is in good shape and the crown can hold a proper mount. On pre-1950 homes with shifted brick, we repair and level the crown first, because a top-seal damper only seals correctly when it sits flat. Forcing one onto an out-of-level crown guarantees a bad seal.
Check the mounting legs and the crown before you replace anything. Shifted brick often means the crown is out of level, and the cap legs have been taking stress they were never designed for. We inspect the whole assembly, repoint the shifted mortar if needed, and then decide whether the existing Gelco cap can be re-seated or needs to go.
Usually it comes down to two things: how close your roof sits to the bay wind and what kind of fires you burn. A Redwood City home with a west-facing chimney and unseasoned wood will clog a screen in half the time of an east-facing chimney burning dry hardwoods. We clean the screen and check the cap body for rust while we’re up there.
Yes, and it matters more here than inland. A stiff gasket means the damper no longer seals, so damp winter air rides down the flue and corrodes the steel collar. In Redwood City’s wet Nov – Mar stretch, that is a slow leak that turns into a repair bill. We can replace the gasket or the damper assembly before the collar rusts through. Call (844) 980-4364 for an exact quote, estimates are free.
Service Areas Near Redwood City
We serve Redwood City and nearby Peninsula towns including Palo Alto, Fremont, Santa Clara, Hayward, and Newark. If you’re just outside Redwood City, call and ask. We’ll tell you straight if we can get a crew to you.
Book Your Gelco Service in Redwood City Today
If your Gelco cap is rusted, your damper gasket is stiff, or your older Redwood City chimney hasn’t been checked since the last earthquake scare, call (844) 980-4364 for a free estimate. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday.
Written by Raul Escobar, Owner at Chimney Cleaning Fremont, serving Redwood City since 2011.