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 Walnut Park, CA | San Bernardino Chimney Sweep
Most chimney companies in Walnut Park treat a cleaning as a quick pass with a brush. We treat it as a full inspection of the flue, crown, cap, and damper, because on the original clay-tile chimneys in 90255, the problem is rarely the soot. It’s usually what the wind and rain have done to the Gelco components up top. We’re an independent Gelco service provider, not a manufacturer affiliate, so we’ll tell you straight when a cap just needs re-anchoring versus when the crown underneath it has failed. Call us at (877) 516-7159 and we’ll come out, take a look, and give you an honest read on what your chimney actually needs.
Why Walnut Park Residents Choose Us for Gelco Service
Allen Prescott grew up near the Kendall Drive corridor in San Bernardino and has spent the better part of three decades working on Inland Empire chimneys before bringing that experience to the 90255 area. Why does that matter for a Gelco cap or damper? Because the failures we see aren’t catalog failures. They’re what happens when a stainless cap meets Santa Ana gusts, salt-laden air, and a mortar crown that’s been quietly spalling since the 1950s. We know how Gelco components age in exactly these conditions.
When you call us for Gelco sales & service, you get a crew that works on chimney and ventilation systems exclusively. We’re not a handyman outfit squeezing chimney work between other jobs. And because we also handle chimney repair, we don’t just report a cracked crown and leave you to find someone else. We find it, we fix it, and we make sure the Gelco cap or damper on top is doing its job. Parts compatibility matters: we keep aftermarket components sized to Gelco mounts on hand, and we can install OEM Gelco parts when you want an exact match. That means faster turnarounds for Walnut Park homes, where the chimney stack is often tight to the property line and you don’t want to wait two weeks for a part.
Styles & brands we work with





Common Gelco Chimney Cleaning Problems We Solve in Walnut Park
Here’s what we actually find on Gelco-equipped chimneys across Walnut Park, and what the local conditions have to do with it:
- Wind-loosened caps after Santa Ana events. The dense, tightly packed lots in Walnut Park mean chimney stacks sit exposed at alley height with little windbreak. Gelco stainless caps take the brunt of those gusts, and the mounting tabs loosen or lift. Once that happens, rain and pests get straight into the flue.
- Corroded or torn cap screens. Walnut Park sits in the near-coastal basin, and the salt-laden air works on screen mesh over time. A corroded screen is an open door for birds and rodents, especially into original clay-tile flues that have no liner to catch what gets through.
- Dried-out top-mount damper gaskets. Hot, dry summers in 90255 bake the gaskets on Gelco top-mount dampers until they crack. The damper stops sealing, the chimney drafts poorly, and that occasional winter fire smokes back into the living room.
- Rusted fasteners at the crown. Gelco cap legs and fasteners rust where they bolt into a crumbling mortar crown. The rust accelerates crown spalling, and the whole assembly gets wobbly on original 1920s to 1950s masonry stacks.
- Re-capped but still leaking. We see chimneys where someone slapped a new cap on an old, cracked clay-tile flue and called it done. In Walnut Park, where many flues are original and unlined, a cap alone won’t fix spalling tile or crown damage. The repair has to come first.
Gelco Service in Walnut Park: What Local Conditions Mean for Your Equipment
Here’s the thing about Walnut Park specifically: because the lots are so tight, the chimney stack is often the tallest structure in the alley. That means wind-driven rain and Santa Ana gusts hit Gelco caps and crowns here harder than they would on an open-lot home in a spread-out suburb. The cap isn’t just sitting up there catching soot, it’s taking sideways rain and 60-mile-an-hour gusts on a regular basis, year after year.
We see the result on Gelco caps across the 90255 stretch: mounting legs that have worked loose, screens that have torn, and crowns that have crumbled under the constant flexing. A routine sweep in Walnut Park is honestly the smaller part of the job. The bigger part is checking how well the Gelco components are anchored, whether the crown is still intact, and whether waterproofing has failed. If we’re servicing a Gelco cap on a bungalow near Alameda Street, we’re looking at the fasteners first, not the flue. Wind-driven rain gets in, the crown spalls, the cap shifts, and then you’ve got water in the firebox and a flue that needs more than sweeping. On a stucco bungalow off Alameda Street in 90255, our tech found a Gelco multi-flue cap with two mounting legs rusted through where they met a spalled mortar crown. The cap had shifted enough to let rain into the unlined clay tiles. We repointed the crown, coated it for waterproofing, and set a properly anchored Gelco-compatible multi-flue cap. The homeowner’s next winter fire drafted cleanly, with no water stains in the firebox. That’s the difference between a sweep and a real inspection.
Gelco Models & Products We Service in Walnut Park
We service the full Gelco product line as it applies to residential chimneys in Walnut Park: multi-flue stainless steel caps, single-flue chimney caps, top-mount dampers, and fireplace glass door and screen assemblies. If you’ve got a Gelco cap on a two-flue stack or a Gelco damper on an original clay-tile chimney, we know the mount patterns, the tab spacing, and the gasket dimensions. When a customer needs a specific finish or wants an exact match, we order OEM Gelco components. When they want to save a little and get moving fast, we stock quality aftermarket caps and dampers sized to fit Gelco mounts, so turnaround on a Walnut Park job is often days, not weeks. And if your chimneys need cleaning or your dryer vent has been ignored, let us know, we handle those too; we’re based out of San Bernardino Chimney Sweep so you’re getting our full Walnut Park service area coverage without a second company.
See the difference
Before
After
Before
After
Before
AfterGelco Service Pricing in Walnut Park
Serving Walnut Park, CA — Our Local Coverage Area
We’re based in the Walnut Park 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 Walnut Park
My Gelco cap is rattling in Santa Ana winds – is that a repair or a replacement?
Usually a repair. The rattle is almost always a loose mounting tab or a leg that’s worked free from a spalled crown. We’ll tighten and re-anchor what’s salvageable, and only recommend replacement if the cap itself is cracked or the fasteners have rusted through. Call (877) 516-7159 and we’ll tell you which one you’ve got.
Can you service a Gelco top-mount damper on an original 1940s clay-tile flue with no liner?
Yes, we can. The damper mounts to the flue opening, so the tile condition below it matters for the chimney overall, but not for the damper’s mount. That said, if the flue is cracked or the crown is failing, we’ll tell you before we put a new damper on. Replacing the damper without fixing the flue is wasted money in Walnut Park.
Do you carry Gelco caps for narrow-lot homes in Walnut Park where the stack is tight to the property line?
We carry aftermarket caps sized to Gelco mounts in common flue dimensions, including the smaller single-flue footprints we see on the dense 90255 lots. If you need a specific Gelco finish or an exact OEM match, we source it directly. The property line matters for access, not for the cap itself, and we’ve worked on plenty of Walnut Park chimneys where the ladder barely fits.
How does the hot, dry summer and short rainy season affect my Gelco cap and crown?
The dry heat bakes damper gaskets until they crack and lose their seal. Then the short, occasionally intense rainy season sends wind-driven water at the cap and crown from the side, not just from above. The combination is tough on fasteners and mortar. That’s why crown waterproofing gets as much attention as the sweep in Walnut Park. We’ll assess yours and give you a straight answer on what’s needed.
Can you tell me if my Gelco cap fits an older Spanish-style stucco chimney?
If it’s mounted now, it fit at some point, but that doesn’t mean it fits well. We regularly find caps on Walnut Park’s Spanish-style stucco chimneys that were sized for a different flue dimension or rigged with adapters that failed. We’ll check the mount, the tab spacing, and the seal, and tell you honestly whether the cap is doing its job. The estimate is free; call (877) 516-7159.
Service Areas Near Walnut Park
In addition to Walnut Park, our Gelco service coverage extends to nearby communities, including Gelco service in Signal Hill, San Bernardino, Colton, Rubidoux, and Rialto. We also provide Gelco service in La Crescenta-Montrose for homeowners further into the San Gabriel foothills. If you’re not sure whether we cover your street, call and ask.
Book Your Gelco Service in Walnut Park Today
If your Gelco cap is loose, your damper won’t seal, or you haven’t had your flue checked in longer than you can remember, don’t put it off another season. Call (877) 516-7159 for a free estimate. Allen Prescott and the crew will come out, take a careful look at the whole system, and tell you plainly what needs to happen and what can wait. A clean flue isn’t a luxury – it’s just how you keep the fire where it belongs.
Written by Allen Prescott, Owner at San Bernardino Chimney Sweep, providing Gelco repair in Huntington Park, Walnut Park, and surrounding areas since he narrowed his focus to chimney maintenance and venting safety.