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 Covina, CA | Ashwood Chimney Sweep
We provide independent Chimney Sweep in Covina for Gelco equipment across the 91722, 91723, and 91724 ZIP codes. The thing that makes our Gelco work here different is simple: we know Covina’s post-WWII tract chimneys, and we know where Gelco inserts and log sets fail inside them. Call (833) 805-3229 to book a sweep and inspection with a crew that services Gelco equipment on original clay-tile flues every week.
We’re not a Gelco dealer and we’re not affiliated with the manufacturer. We’re Gelco sales & service specialists in the practical sense: we clean, inspect, and repair Gelco fireplace inserts, gas log sets, doors, caps, and spark arrestors using Gelco-compatible OEM parts when available and quality aftermarket equivalents when they’re not. Serving all of Covina service area, from the older tracts near downtown to the newer developments east of the 57.
Why Covina Residents Choose Us for Gelco Service
Norm Castillo founded Ashwood Chimney Sweep after nearly two decades working the San Gabriel Valley and Inland Empire, his trade roots going back to a Chaffey College building systems program in Rancho Cucamonga. He’s the guy you talk to when a Gelco gas log set vents wrong and nobody can figure out why. When Norm’s crew shows up at a Covina house, they already know the chimney was likely built between the late 1940s and the 1970s, possibly converted to gas, possibly untouched since the conversion.
We service Gelco equipment on masonry stacks that most sweep companies treat as a simple brush job. They aren’t. A cracked clay tile behind a Gelco insert is a repair conversation, not a brushing. We bring a Level 2 camera scope on service calls where the flue is original, because that’s the only way to see what’s happening behind the firebox. We’re licensed and insured, and we repair with the same materials professional contractors specify.
Styles & brands we work with





Common Gelco Chimney Cleaning Problems We Solve in Covina
- Cracked clay tile behind Gelco inserts. Covina’s 1950s and 60s tract homes were built with original clay-tile flue liners. Gelco wood-burning inserts dropped into those fireboxes concentrate heat at the tile, and after decades of thermal cycling plus seismic movement, the tiles crack. A top-down sweep won’t catch it. We scope it every time.
- Smoky, lazy drafts from Gelco gas log sets after summer idle. Through the hot San Gabriel Valley summer, Gelco gas log sets and inserts sit unused for months. Pest nests and wind-driven debris pack the firebox and smoke chamber. First cold night, the fireplace won’t draft and smoke rolls back into the room. That’s the most common call we get in September and October.
- Rusted or missing spark arrestors on Gelco caps. In the older tracts near downtown Covina (91722 and 91723), Gelco chimney caps and spark arrestors have taken decades of Santa Ana wind and direct summer sun. Screens corrode, fasteners vibrate loose, and whole arrestors go missing. Birds get in. Water gets in. The flue takes damage no brush fixes.
- Seized Gelco dampers on long-idle fireplaces. Homeowners who haven’t lit a fire in years often find their Gelco damper won’t budge, then force it. Bent or cracked dampers never seat properly afterward, which means draft problems all season. We replace them with compatible dampers that actually fit the throat.
- Eroded mortar crowns above Gelco fireplaces in the 91722/91723 tracts. The same Santa Ana winds that strip arrestors also break down the mortar crowns on exterior masonry stacks. Water gets behind the crown, soaks into the brick, and eventually runs down into the flue and smoke chamber. Gelco equipment can’t operate safely on a flue that’s wet and degrading.
Gelco Service in Covina: What Local Conditions Mean for Your Equipment
Covina’s post-WWII tract chimneys near downtown were built with exterior masonry stacks and clay-tile liners. Here’s what that means if you own Gelco equipment: the same Santa Ana wind and summer sun that erode mortar crowns also strip spark arrestor screens off Gelco caps. On 91722 and 91723 Gelco fireplaces, we routinely find water intrusion and bird nesting before anyone has lit a fire — the same pattern we watch for during West Covina Gelco service calls. The failure pattern is predictable but it’s also invisible from the ground. You won’t see a rusted screen or a missing arrestor from your driveway. You’ll see the smoke rolling back into your living room on the first cold night.
That’s why our Gelco service calls in Covina default to a Level 2 camera inspection whenever the flue is original clay tile. We’re looking for cracked tiles at the smoke chamber, water staining in the flue, and nests packed against the arrestor. On a ranch house off Citrus Avenue near downtown Covina, we opened a Gelco insert in an original clay-tile flue and found the tile cracked at the smoke chamber plus a cap screen rusted through and a nest jammed against the arrestor. We scoped it, swept out the hardened creosote and debris, repointed the eroded crown, and set a new multi-flue cap with a serviceable spark arrestor before the first cold snap. That’s the job done right.
Gelco Models & Products We Service in Covina
We service the Gelco equipment actually installed in Covina’s housing stock, both original installs and retrofit work. Gelco wood-burning fireplace inserts. Gelco gas log sets and gas fireplace inserts. Gelco fireplace glass door and screen enclosure kits. Gelco spark arrestors and chimney caps. Our parts approach is functional, not label-driven: Gelco-compatible OEM parts when they’re available, quality aftermarket equivalents when they’re not. Dampers, caps, spark arrestors, and door gaskets get judged on fit and function. What’s stocked locally for fast Covina turnaround includes common cap sizes, spark arrestor replacement screens, damper hardware, and door gasket material. The rest we order quickly from suppliers in the trade.
See the difference
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After
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AfterGelco Service Pricing in Covina
A Gelco chimney cleaning in Covina typically runs $180 to $260 for a standard sweep with visual inspection. If the flue is original clay tile and hasn’t been inspected in years, a Level 2 camera scope adds $100 to $150 and usually earns its cost the first time it catches a cracked tile or a packed nest. Creosote removal in severe glazing situations can run toward $450 or more depending on the condition. Crown repair on exterior Covina masonry stacks typically runs $450 to $900. Gelco-compatible cap or spark arrestor replacement usually lands between $150 and $400 installed. We give free estimates and flat-price sweeps agreed before we book the work. Call (833) 805-3229 for an exact quote on your Gelco equipment.
Serving Covina, CA — Our Local Coverage Area
We’re based in the Covina 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 Covina
Yes. A brush sweep only cleans the creosote off the flue walls; it cannot tell you whether the clay tile behind your Gelco insert is cracked or shifted. Covina’s 1950s tract chimneys have lived through decades of seismic movement and thermal cycling, so we scope the flue with a Level 2 camera on any original clay-tile fireplace. The cost is modest and it tells you what the sweep can’t. Call (833) 805-3229 to schedule a sweep and scope together.
Because birds, insects, and wind-driven debris packed the flue while the fireplace was idle through the hot San Gabriel Valley summer. Gelco gas log sets are sensitive to draft; even a small nest in the smoke chamber or debris against the arrestor changes the airflow enough to make the fire lazy and smoky. A sweep plus a visual check of the cap and arrestor fixes most of these Covina calls. Call (833) 805-3229 and we’ll get it sorted before the next cold snap.
It’s a real problem in Covina’s 91722 and 91723 neighborhoods especially, where exterior masonry stacks have taken decades of Santa Ana wind and sun. A rusted or missing arrestor lets birds in, lets water in, and leaves embers unguarded at the top of your flue. We replace Gelco-compatible caps and arrestors with serviceable screens that actually keep the flue closed off between fires. Call (833) 805-3229 for a free estimate.
Yes. We do both in one visit. The eroded crown above a Gelco insert is usually a repairable masonry job, not a demolition. We clean and scope the Gelco equipment, then repoint or repair the crown with professional-grade materials. One contractor handles the whole flue, not just the easy parts. Call (833) 805-3229 to book it.
On a Covina tract home, the fireplace itself is usually sound enough to accept a gas conversion, but the flue needs to be clean, the damper needs to seat, and the cap and arrestor need to be in serviceable condition. We assess all of that before a conversion, and we’re honest when the original clay tile has cracked enough that a new liner is the right call. That conversation is based on camera evidence, not guesswork. Call (833) 805-3229 for a full assessment.
Service Areas Near Covina
We service Gelco equipment throughout Covina and the surrounding San Gabriel Valley and Inland Empire communities. If you’re in Gelco service in Citrus, we cover that area too. Up the hill, Gelco service in Piñon Hills is part of our route. We also work in Fontana, Bloomington, Rialto, and the neighborhoods in between.
Book Your Gelco Service in Covina Today
If your Gelco fireplace hasn’t been looked at this year, call (833) 805-3229. We’ll schedule a sweep and inspection, scope the flue if it’s original clay tile, and give you a straight answer about what your Covina chimney actually needs. A clean flue isn’t a luxury – it’s just the job done right.
Written by Norm Castillo, Owner at Ashwood Chimney Sweep, serving Covina and the San Gabriel Valley for close to two decades.