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 Bostonia, CA | San Bernardino Chimney Sweep
We clean and repair Gelco fireplaces and inserts throughout Chimney Sweep – Bostonia‘s 92021 ZIP as an independent service provider, not a manufacturer-authorized dealer. What sets our work apart here is simple: we know the original builder-grade Gelco prefab units that went into Bostonia’s 1960s and 70s tract homes, and we know exactly what Santa Ana seasons do to their caps, dampers, and flue tiles. Call (877) 516-7159 for a free estimate and we’ll tell you what your unit actually needs, not what a parts catalog suggests.

Why Bostonia Residents Choose Us for Gelco Service
Most of the Gelco fireplaces in Bostonia are original equipment. They were installed when the house was framed, and a surprising number have never had their flue tiles replaced or their caps inspected since the day the builder closed the permit. Allen Prescott, our owner, grew up near the Kendall Drive corridor in San Bernardino and has spent the better part of three decades working on chimneys and fireplaces throughout Inland Empire homes, including hundreds in Crest Gelco service areas and Bostonia’s older tracts. That repetition matters. We can usually tell from the street what a Gelco prefab unit is likely to show us inside, because we’ve opened enough of them off Broadway and around Bostonia County Park to recognize the patterns.
We’re an independent company, which means we have no incentive to push a full replacement when a sweep, a cap, or a refractory panel does the job. We stock Gelco-compatible parts for the common vintage units, and when we find damage, we explain it with camera footage you can see for yourself. You can read more about our Gelco sales & service approach on our brand page. For homeowners across the Bostonia service area, that combination of local familiarity and straight reporting is the reason they call us first.
Styles & brands we work with





Common Gelco Chimney Cleaning Problems We Solve in Bostonia
- Bent or torn caps from Santa Ana gusts. Caps on west-facing Gelco prefab units take the brute force of fall winds, and in Bostonia’s older tracts we regularly find them bent open or missing screw anchors. A cap that’s loose or open lets oak leaves and grit pour into the flue between fires, which sets up the exact conditions for a blocked chimney when you light that first fire in November.
- Hardened creosote after a long idle season. Bostonia’s hot, dry summers leave fireplaces untouched for months. Creosote that would have stayed soft in a coastal climate turns brittle and glazed here. It takes mechanical brushing, sometimes with a rotary loop, to get it off the flue walls, and it does not come down with a hand brush alone.
- Seized dampers on Gelco inserts. A throat damper that sat closed since March can rust into place, especially in single-story tract homes where the chimney cap has been leaking unnoticed. We’ve opened dozens in Bostonia where the first cold-night attempt to turn the handle just bends the linkage. This needs freeing, lubricating, and sometimes a replacement damper plate.
- Cracked refractory panels in original builder-grade chases. The prefab Gelco fireplaces installed in Bostonia’s 1960s – 70s homes used refractory panels that were adequate for occasional use. Decades of hotter, longer fires crack them. A cracked panel exposes the metal firebox behind it, and burning in that condition accelerates rust and frame distortion.
- Debris-packed flues hiding broken tile joints. Fall winds drive leaf litter and twigs down uncapped or open flues, but what we often find underneath the debris is the real issue: a cracked clay tile joint that’s been compromised for years. The debris is a fire hazard by itself, but the tile damage is what determines whether the flue can be swept and used or needs a liner repair.
Gelco Service in Bostonia: What Local Conditions Mean for Your Equipment
Bostonia’s housing stock has a specific legacy that shows up on every Gelco job here. These 1960s and 70s tract homes were built with fireboxes and clay flues sized for casual, occasional burning. The original owner’s manual assumed a handful of fires each December, maybe a few more in January. Today’s Bostonia homeowner tends to burn hotter and longer, often with manufactured logs or densified wood that puts more heat up the flue than the original clay tile was specified to handle. The result is predictable to anyone who’s swept enough of these homes: spalling on the inner tile surface, hairline cracks at the mortar joints, and in some cases a full longitudinal crack running up the chimney. In these same homes, many of those flue tiles have never been replaced since the house was new.
What this means for Gelco owners specifically is that a simple cleaning call often turns into a Level 2 camera inspection revealing tile damage that nobody knew existed because the creosote was covering it. That’s why we pull the firebox, brush thoroughly, and then run a camera up the flue on nearly every Bostonia first-time cleaning. We’d rather show you the crack in the tile than have you find out about it as glowing ember passes through to the chase. A clean flue isn’t a luxury, it’s just how you keep the fire where it belongs.
Gelco Models & Products We Service in Bostonia
We work on the Gelco equipment most common to Bostonia’s single-story tract builds: the original prefab wood-burning fireplaces with factory metal chimneys, Gelco inserts retrofitted into masonry fireboxes, gas log sets and decorative gas fireplaces, and the multi-flue caps and chase cover assemblies that top many of these units, including those we service for Granite Hills Gelco service customers. Our parts approach is matched to vintage, not to whatever’s current in the catalog. We use Gelco-compatible OEM or equal-quality aftermarket caps, dampers, and refractory panels, and we verify fit against the unit’s actual model and year of manufacture before ordering. For older Gelco units, that often means sourcing a correct-depth refractory panel or a specific damper plate rather than forcing a universal replacement that doesn’t seat properly.
See the difference
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AfterGelco Service Pricing in Bostonia
A standard Gelco fireplace cleaning and Level 1 inspection in Bostonia typically falls between $180 and $290, depending on how many seasons of creosote have built up and whether the cap or damper needs adjustment during the visit. If we find tile cracks or refractory damage during the sweep, a Level 2 camera inspection adds $150 to $300, and that’s often the difference between knowing your flue is sound and guessing. Cap replacement varies with the cap size and mounting type; screened stainless caps for common Gelco prefab flues usually run $140 to $260 installed. Our estimates are free and we confirm the price after looking at the unit, not before we’ve seen it. Call (877) 516-7159 and we’ll give you an exact quote for your fireplace.

Serving Bostonia, CA — Our Local Coverage Area
We’re based in the Bostonia 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 Bostonia
Usually yes, but with a caveat. We sweep and inspect original Gelco units in Bostonia all the time, and many of them are still mechanically sound. The concern is the clay flue tile behind the creosote. If a camera inspection shows no cracking or spalling, the unit can be swept and used normally. If the tile has split, burning as-is risks heat reaching the chase. We’ll show you the camera footage and tell you straight what needs repair. Call (877) 516-7159 to schedule a cleaning and inspection.
The Santa Anas hit Bostonia from the east and northeast, but west-facing chimney caps catch the swirling gusts that wrap around roof peaks and hit from odd angles. A cap held by cheap sheet-metal screws or worn anchor points will work loose within a season or two. We replace it with a properly anchored screened cap sized to the flue, and we check the anchor points rather than just swapping the cap. Call (877) 516-7159 and mention your cap, and we’ll take a look when we’re next in the 92021 ZIP.
Two things usually explain it in Bostonia. First, summer heat bakes any remaining creosote into a hard glaze inside the flue, and that can smell strongly on humid or cool days. Second, open or damaged caps let oak leaves and twigs fall into the flue and collect above the damper. We’ve pulled half a trash bag of debris from Gelco flues in Bostonia and handled Gelco repair in Winter Gardens for units that hadn’t been burned since the prior winter. The fix is a sweep and, if the cap is damaged, a replacement. Call (877) 516-7159 for an estimate.
We carry and order Gelco-compatible parts for the older prefab units that dominate Bostonia’s tract homes: refractory panels, cap assemblies, damper plates, and chase covers. Replacement is only something we recommend when the firebox or flue integrity cannot be safely restored. We’d rather repair a structurally sound unit than sell you a replacement you don’t need. Call (877) 516-7159 and we’ll tell you what’s fixable.
Once a year. Even light use produces creosote, and Bostonia’s summers harden it where it sits. The bigger issue is debris: a few Santa Ana events can pack a cap’s mesh or fill a flue with leaves whether you burn or not. Annual sweeping keeps the flue clear and gives us a chance to spot cap or tile damage before it becomes a repair. Call (877) 516-7159 to book your next cleaning.
Service Areas Near Bostonia
In addition to Bostonia, our Gelco service covers other Inland Empire communities, including Gelco service in El Cajon, Gelco service in Harbison Canyon, and nearby neighborhoods across the 92021 corridor and beyond. If you’re on the edge of Bostonia and not sure whether we cover your street, call (877) 516-7159 and ask.
Book Your Gelco Service in Bostonia Today
If your Gelco fireplace hasn’t been cleaned in the last year, or you’re not sure whether your cap survived the last Santa Ana season, we can help. Call (877) 516-7159 and we’ll schedule your sweep, inspect what needs inspecting, and give you an honest answer about your flue.
Written by Allen Prescott, Owner at San Bernardino Chimney Sweep, serving Bostonia and the Inland Empire.