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 South Pasadena, CA | Ashwood Chimney Sweep
We provide independent Gelco chimney cleaning and service across South Pasadena, CA, and San Marino Gelco service as well. Most of our Gelco calls here aren’t about heavy creosote – they’re about untangling 1970s – 80s conversion-era inserts, aging clay tile liners, and cracked crowns that look fine from the street. Ashwood Chimney Sweep knows Gelco fireboxes, inserts, and gas log sets from years of working the bungalow stock in 91030 and 91031. Call (833) 805-3229 for an honest look before your next burn season.
Why South Pasadena Residents Choose Us for Gelco Service
We’re an independent Gelco service provider, not manufacturer-affiliated or authorized. That matters in South Pasadena, where so many Gelco gas-log and insert conversions were dropped into original 1920s – 40s masonry fireboxes decades ago. An authorized dealer’s first instinct may be replacement. Ours is diagnosis. We’ve pulled apart enough old conversions to know when a failing Gelco damper is the problem, when a cracked clay-tile liner is the real issue, and when a unit is genuinely past its service life. Norm Castillo, who leads our team, has been working flues and venting systems across Southern California for close to two decades, and he’s the kind of person who’ll tell you not to spend money before you tell him what you’re seeing. We carry OEM Gelco parts where they’re still available, and quality aftermarket equivalents for discontinued hardware – always rated for the specific Gelco model in your firebox. That’s the practical side of working on older equipment: knowing what fits and what doesn’t.
Styles & brands we work with





Common Gelco Chimney Cleaning Problems We Solve in South Pasadena
- Sticking or seized dampers on older Gelco inserts. South Pasadena’s long, dry Mediterranean off-season means a Gelco insert can sit unused for eight or ten months. Damper and baffle hardware seizes from idle cycling, not heavy burn. We free them, replace worn components, and set the throw correctly.
- Cracked or warped firebox panels behind intact facades. Many Gelco inserts and gas log sets went into South Pasadena hearths during the 1970s – 80s energy conversion wave. Heat exchanger and firebox panels from that era crack or warp over time, often hidden behind a front that looks fine from the living room. We find these during cleaning and inspection, before they become a combustion-safety problem.
- Liner and flue-collar corrosion where retrofitted Gelco inserts meet original clay-tile flues. This is the single most common Gelco issue we see in South Pasadena’s older bungalow rows. The stainless collar and liner from a Gelco insert mated against a 1920s-era clay flue creates a corrosion point, especially with decades of temperature cycling and occasional Santa Ana downdrafts.
- Fouled glass, gaskets, and gas-log burners from long idle periods. In a climate where fireplaces light maybe a dozen nights a year, Gelco gas sets develop issues from sitting more than from running. Burner ports clog with fine dust. Gaskets dry and lose their seal. Glass accumulates a stubborn haze. We clean and service all of it during a standard Gelco chimney cleaning.
- Cracked crowns and spark arrestors on 1920s-era chimneys that look fine from the curb. South Pasadena’s older chimneys have been settling for nearly a century, and the occasional big Santa Ana wind blast finishes what time started. We routinely find damaged crowns on chimneys that look perfectly sound from the sidewalk. If the crown is compromised, water gets into the brickwork, and that becomes a structural problem fast.
Gelco Service in South Pasadena: What Local Conditions Mean for Your Equipment
South Pasadena’s east-side bungalow rows are full of Gelco gas-log and insert conversions done during the 1970s – 80s energy era, and the leftover liners and venting from those jobs are still sitting in the flues. On one of the older bungalow rows off the east side of town, we opened a Gelco gas-log set that had been dropped into a 1920s masonry firebox during an old conversion and found the original clay-tile liner cracked where the venting met it, with a crown above it already split from settling. That’s a typical South Pasadena situation: the visible hearth looks fine, but the flue above it was never properly addressed after the conversion. We pulled and documented the old conversion hardware, repaired the crown, and set the Gelco set up with proper venting so it drew correctly again. For Gelco owners in South Pasadena and nearby areas like San Gabriel, the practical takeaway is that an older conversion often needs a Level 2 inspection, not just a sweep. The chimney may have been untouched since the day the gas log set went in. A clean flue isn’t a luxury – it’s just the job done right.
Gelco Models & Products We Service in South Pasadena
We service Gelco direct-vent gas fireplace inserts, Gelco wood-burning fireplace inserts, Gelco gas log sets and vented gas log burners, and Gelco factory-built fireboxes with listed chimney. Our Gelco sales & service work covers cleaning, inspection, damper repair, glass and gasket replacement, burner service, and liner assessment. For parts, we use OEM Gelco components where they’re still available and match the unit’s rating. For discontinued hardware, we source quality aftermarket equivalents from professional trade suppliers – the same sources that stock DuraFlex, Olympia Chimney, and Famco ventilation components. We repair when the box, liner, and heat exchanger are sound. When a unit is past the point where repair makes sense, we say so plainly, and we’ll show you why.
See the difference
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Before
AfterGelco Service Pricing in South Pasadena
Gelco chimney cleaning in South Pasadena typically runs between $180 and $420, depending on what we find and how much un-fucking the previous decades left behind. A straight clean on a well-maintained gas log set runs lower. A Gelco insert in an original clay-tile flue with conversion-era venting still in place runs higher, because we’re pulling old hardware, documenting it, and checking the liner above the firebox. Level 2 inspections for conversion-era Gelco installations in South Pasadena typically run $180 – $340 and include camera documentation of the flue interior. A crown repair on a cracked 1920s-era chimney top in this area often lands between $400 and $800, depending on the extent of the damage and whether we need to address adjacent mortar joints. Our estimate is free, and we’ll show you photos of anything we recommend. Call (833) 805-3229 for an exact quote.
Serving South Pasadena, CA — Our Local Coverage Area
We’re based in the South Pasadena 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 South Pasadena
A Level 2 inspection is the right call for a conversion-era Gelco installation in South Pasadena. Level 1 covers accessible portions of the chimney and is fine for annual maintenance on systems that haven’t changed. A 1970s – 80s conversion with unknown venting, possible original clay-tile liners still in place, and decades of idle cycles needs a deeper look. We camera the flue, document what’s above the firebox, and tell you what actually needs work. Call (833) 805-3229 to schedule one.
The smell and poor draft usually come from three things we find in South Pasadena homes: a clogged or damaged flue from a decades-old conversion, a damper that’s partially seized and not throwing correctly, or a cracked clay-tile liner that allows smoke and combustion gases to leak into the surrounding masonry. The mild creosote loads here mean the smell is rarely from buildup – it’s almost always structural or mechanical. We diagnose all three on a standard Gelco service call.
Yes. That’s actually the majority of our Gelco service work in South Pasadena. Units that sit for years develop specific problems: gaskets dry out, burner ports clog with fine dust, dampers seize, and gas valves can stick. We disassemble what needs disassembling, clean what needs cleaning, replace deteriorated seals and hardware, and test the unit under fire before we leave. Long idle periods are a service challenge, not a reason to replace.
It depends on what’s between the insert and the clay tile. Many South Pasadena conversions used minimal or improvised venting, and after 40 or 50 years of temperature cycling, the junction between the Gelco collar and the original clay liner is often corroded or cracked. Sometimes it’s fine and just needs cleaning. Sometimes it’s a combustion-gas leak waiting to become a carbon monoxide problem. We camera the flue and show you exactly what’s there before recommending anything. If the liner is failing, HeatShield lets us restore it – not just document the problem.
We repair dampers whenever the surrounding components are sound. On older Gelco inserts, the damper hardware is often seized or loose, not broken, and a service kit with OEM or properly rated aftermarket parts brings it back. If the damper itself is cracked, severely warped, or the firebox around it is compromised, we’ll be straight with you about whether replacement makes sense. Most of the dampers we see in South Pasadena can be repaired.
Service Areas Near South Pasadena
We serve all of South Pasadena, including the 91030 and 91031 ZIP codes and the older bungalow rows off the east side. We also take Gelco service calls in Pasadena, Alhambra, San Marino, Highland Park, and Los Angeles neighborhoods with similar 1920s – 40s housing stock. If you’re in South Pasadena service area territory, we can usually schedule you within the week. We also run Gelco service in Downey and Gelco service in Los Alamitos for clients in those areas.
Book Your Gelco Service in South Pasadena Today
If you’ve got a Gelco fireplace or insert in South Pasadena and it hasn’t been looked at in years, call (833) 805-3229. We’ll schedule the service, show up on time, and tell you what’s actually going on in your flue – with photos to back it up. Estimates are free.
Written by Norm Castillo, Owner at Ashwood Chimney Sweep, serving South Pasadena since our first flue here – and every one since.