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 Pasadena, CA | Sherwood Chimney Sweep
We provide independent Gelco chimney cleaning, cap replacement, and damper service throughout Pasadena. What makes our work here different is simple: we know how Pasadena’s 100-year-old chimneys and Santa Ana winds punish Gelco components, so we clean with an eye toward what’s about to fail next. If you own a Gelco cap or damper in Pasadena, call (833) 589-8498 for a straight answer about what needs fixing and what can wait.
Sherwood Chimney Sweep has worked on hundreds of Gelco caps, dampers, and flue components across Pasadena’s Craftsman bungalows and Spanish Colonials. We’re not manufacturer-authorized. We’re independent. That means we tell you when a part is worth repairing and when it’s better to replace it with a properly matched aftermarket stainless steel unit. Call (833) 589-8498 and you’ll get Noel Carver’s honest assessment, not a sales pitch.
Why Pasadena Residents Choose Us for Gelco Service
Most chimney companies in Pasadena treat a Gelco cap as a generic part. We don’t. We know the failure patterns specific to Gelco hardware: galvanized caps that corrode at the seams, damper hinges that seize after months of no-burn days, mesh screens that split under UV and let palm debris through. When we arrive at your Pasadena home, we’re not guessing. We’re looking for the problems we’ve seen dozens of times on the same models.
Noel Carver grew up in South Pasadena, not far from Garfield Park, and trained in building systems and ventilation at Pasadena City College before spending over twenty years diagnosing chimney problems across the San Gabriel Valley. That local background matters when you’re dealing with a historic home. Noel understands what Pasadena’s original clay flue tiles can take and what they can’t, and he’ll explain it in plain terms. We use OEM Gelco replacement parts when they’re available for an exact fit, but we also stock aftermarket stainless steel caps that hold up better in our climate. We’re here for Pasadena service area homeowners who want a chimney specialist, not a generalist.
Styles & brands we work with





Common Gelco Chimney Cleaning Problems We Solve in Pasadena
Here’s what we see most often on Gelco installations in Pasadena:
- Corroded galvanized steel caps detaching after Santa Ana wind events. Pasadena’s wind season peels back caps that have been quietly rusting for years. We replace them before birds move in and block the flue.
- Stainless steel mesh screens degrading from dry rot and UV exposure. Pasadena’s hot, dry summers bake these screens until they split. Palm fronds and small animals then find their way into your flue. During cleaning we check every Gelco screen for signs of failure.
- Damper hinges seizing from months of no-burn alerts. When Pasadena declares a no-burn day, your damper sits closed. Months later the hinge has locked up, and you’re losing conditioned air or getting draft back into the house. We free these or replace them during a routine Gelco service.
- Cap mounts loosening as mortar crowns crack from seismic movement. Pasadena sits in earthquake country. Even small tremors crack old mortar crowns, and Gelco caps mounted to those crowns begin to sit askew and leak water into the flue.
- Creosote glazing from infrequent use. With Pasadena’s winter no-burn restrictions, fireplaces sit idle for long stretches. Creosote doesn’t get burned off; it hardens into a glaze that requires more than a standard sweep. We handle it with the right brushes and solvents for Gelco-lined flues.
Gelco Service in Pasadena: What Local Conditions Mean for Your Equipment
Pasadena’s Bungalow Heaven Historic District changes how Gelco cap replacement works. If you live in this neighborhood, you already know that any exterior alteration to your Craftsman home passes through design review. What you may not know is that chimney caps count. Our crew has navigated this process repeatedly: we specify a Gelco-style stainless steel cap that matches the original profile, handle the necessary documentation with the city’s planning department, and install a unit that meets both historic guidelines and modern safety standards. Neighboring cities like Altadena don’t enforce this, but Pasadena does, and it changes the timeline and the product selection for your Gelco replacement. After a strong Santa Ana wind event, our crew was called to a 1912 Craftsman bungalow on North Marengo Avenue in Bungalow Heaven where a Gelco multi-flue cap had been peeled back and a bird’s nest was blocking the flue. We removed the nest, replaced the corroded cap with a custom-fabricated Gelco-style stainless steel cap that matched the home’s historic profile, and conducted a Level 2 camera inspection to check the original clay tiles for damage. The homeowner was relieved that we preserved the architectural look while restoring safe function.
Gelco Models & Products We Service in Pasadena
We service the full Gelco product range commonly found on Pasadena homes, including the Gelco Multi-Flue Cap, Gelco Custom Cap, Gelco Top-Mount Damper, and Gelco Chimney Cap with Screen. Our approach to parts is straightforward: when an OEM Gelco replacement is available and makes sense, we use it. When a Gelco component has failed due to a known weakness, like galvanized steel corrosion in our dry climate, we recommend a high-quality aftermarket stainless steel replacement that will outlast the original. We stock common Gelco-compatible caps and damper hardware locally, so most Pasadena replacements happen within days, not weeks. For everything from cap replacement to multi-flue cap installation to chimney waterproofing, we’re the independent Gelco sales & service team Pasadena trusts for straight answers.
See the difference
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AfterGelco Service Pricing in Pasadena
Expect a Gelco chimney cleaning in Pasadena to run between $180 and $340, depending on flue size, creosote condition, and whether we’re also cleaning a furnace flue or dryer vent. If we’re replacing a Gelco cap, that’s separate from cleaning; typical cap replacement with a quality stainless steel unit runs $280 to $650, and a custom cap for a multi-flue historic chimney can go higher. Damper repair or replacement adds $150 to $400 depending on the model and how much of the existing hardware can be salvaged. We give you a flat price before we begin, after we’ve looked at what’s actually there. The estimate includes a full visual inspection plus camera work if you need it, and you’ll see the photos yourself. Call (833) 589-8498 for a free estimate with no pressure. If it can wait, we’ll tell you it can wait.
Serving Pasadena, CA — Our Local Coverage Area
We’re based in the Pasadena area and know this community well, including South Pasadena Gelco service. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Gelco Chimney Cleaning in Pasadena
You can replace just the cap in almost every case. A damaged Gelco cap does not usually mean the chimney itself is compromised. We’ll inspect the cap mount, the mortar crown beneath it, and the flue tiles above the roofline. If the crown is intact and the tiles are sound, a new cap is all you need. Call (833) 589-8498 and we’ll give you a direct answer after a camera inspection.
No-burn days mean your fireplace sits unused for weeks or months at a time, and Gelco top-mount dampers have hinges and pivot points that seize when they’re not cycled. You’ll notice a damper that won’t close tightly, or one that won’t open at all when the first cold day arrives. We check damper operation as part of every East Pasadena Gelco service and can usually free a seized hinge before it fails completely. If it won’t move, we replace the damper and set you up for smoother operation next season.
Yes, Gelco multi-flue caps are often the best option for Pasadena’s original double-brick chimneys. Many Craftsman-era chimneys have two or more flues in a single chase, and a custom-fit multi-flue cap provides shared protection without altering the chase’s appearance. We measure each flue tile individually, since 100-year-old masonry is rarely perfectly square, and order a cap sized to the largest tile with appropriate spacing for the others. Custom fabrication is available when the profile is unusual.
Look for visible rust streaks down the side of your chimney, a cap that sits noticeably crooked, missing or torn mesh screen, or water staining on the ceiling near the fireplace. Inside the firebox, look for small piles of debris or animal nesting material that has fallen past a compromised cap. Any of these means the cap has stopped doing its job and should be assessed soon. Call (833) 589-8498 and we’ll take a look from the roof or send a camera up the flue.
Yes. We’ve installed Gelco-style caps on multiple Bungalow Heaven homes, and we’re familiar with the design review expectations for this Pasadena historic district. We’ll document the existing cap profile, select or fabricate a replacement that matches it closely, and provide what your planning contact needs to approve the work. The process takes a little longer, but it’s the right way to protect both your chimney and your home’s architectural character. Call (833) 589-8498 for an exact quote.
Service Areas Near Pasadena
Sherwood Chimney Sweep provides Gelco chimney cleaning and cap replacement throughout Pasadena and the surrounding San Gabriel Valley. If you’re in Bungalow Heaven, northwest Pasadena, or the east side near Sierra Madre Boulevard, we’re close by. We also serve Gelco service in La Habra Heights, Gelco service in East Los Angeles, and nearby communities including El Monte, Rosemead, Temple City, and Avocado Heights.
Book Your Gelco Service in Pasadena Today
A clean chimney doesn’t announce itself. That’s the point. The quiet ones are the safe ones. If you haven’t had your Gelco cap, damper, and flue inspected in the past year, call (833) 589-8498 today for a free estimate. We’re independent, we’re local, and we’ll tell you the truth about what your Pasadena chimney needs.
Written by Noel Carver, Owner at Sherwood Chimney Sweep, serving Pasadena, San Marino Gelco service, and the San Gabriel Valley.