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 Overland, MO
We provide independent Gelco chimney cleaning and service across Overland, MO, and we’re not affiliated with the manufacturer. The thing that makes our Gelco work in Overland different is the housing itself: this is a built-out, post-war streetcar suburb where most chimney systems have been reworked twice, from coal to wood to gas, and that history shapes every cleaning and inspection we do. You get a Hawk-eyed look from cap to firebox, quality parts that actually fit your Gelco equipment, and a flat price agreed before we book the sweep. Call (866) 596-7310. We answer 24/7.

Why Overland Residents Choose Us for Gelco Service
Gelco equipment has its own habits, and technicians who see it regularly know where it fails. We’re an independent shop that services Gelco on its own merits. No manufacturer warranty network behind us. That independence is the point: we tell you what the inspection shows, not what a parts contract wants us to sell.
Overland is dense, older, and full of chimneys that have stories. On streets like Woodson and Lackland, the brick bungalows are close together and the exterior stacks sit low against neighboring roofs, so a cleaning visit often means staging carefully between tight rooflines. We plan for that.
Our technicians have up to 12 years of experience with wood, gas, and solid-fuel systems. We work with professional-grade products from DuraFlex, HeatShield, and Copperfield, and we source quality components that match your Gelco vent geometry precisely. Scheduled cleanings are booked on a flat price agreed in advance, the inspection includes a camera view of the flue, and we stand behind the work. From cap to firebox, one company handles the sweep, the inspection, and any repair.
Styles & brands we work with
- Sweep & inspection
- Caps & crowns
- Flue relining
- Masonry repair
- Gas fireplace service
Common Gelco Chimney Cleaning Problems We Solve in Overland
Here’s what we actually find when we open up Gelco systems in Overland:
- Failed gaskets and seals at the vent collar on direct-vent Gelco gas units. Overland’s humid summers push these seals hard, and homeowners often notice the draft or odor complaint in air-conditioning season, not at first fire. The fix starts with checking the collar and re-sealing the connection.
- Gelco wood inserts dropped into unlined original clay-tile flues. Many Overland chimneys were converted from coal to wood to gas and never lined along the way. The transition where the insert collar meets the old tile becomes a creosote trap, and that’s exactly where we look first during a cleaning.
- Dampers and firebox components that warp or corrode. Our freeze-thaw winters and sticky summers take a toll. A damper that won’t seat lets heat straight up the flue, and it’s a common find in older Gelco assemblies around Overland.
- Glass-door gaskets and cap screens that degrade. Worn gaskets and screens let water in, which accelerates spalling on the weather side of exterior brick stacks. On a dense Overland lot, that weather side is usually the side facing the neighbor’s roof.
- Smoking or smelling on cold startups. A Gelco insert with a compromised collar-to-flue connection backdrafts until the flue warms. Cleaning alone won’t fix it; the transition has to be inspected and resealed.
Gelco Service in Overland: What Local Conditions Mean for Your Equipment
63114 is a built-out 1950s streetcar suburb, not new construction and not rural acreage. That single fact drives how Gelco insert and cap work goes here. Exterior brick chimney stacks sit close to neighboring roofs, so setup happens between tight rooflines, and the stack you’re looking at may have been reworked twice already: coal first, then wood, then gas. When a Gelco wood insert goes into that kind of chimney, the collar usually mates to original clay-tile flue that lost mortar joints years after the fuel conversion, with no liner ever added above it. The result is a creosote trap at the transition and, on the weather side, brick that’s spalling from decades of swelling and shrinking. A typical Overland call starts with a Gelco insert that smokes or smells on startup in a small brick bungalow. The technician usually confirms the transition and any spalling with a Level 2 inspection, then the fix is relining or resealing that transition, cleaning out the creosote trap, re-gasketing the insert, and fitting a new cap. Because lots are tight, staging between close-set neighboring roofs is part of the job, not an afterthought. That’s the reality a generic Gelco or Overland page skips.
Gelco Models & Products We Service in Overland
We service Gelco direct-vent gas fireplace units, wood-burning fireplace inserts, glass-door and screen assemblies, and chimney caps and top-sealing damper accessories. Each type fails in its own way, so the cleaning and inspection approach changes: a direct-vent gas unit gets focused attention on vent collars and gaskets, while a wood insert gets the full flue and transition checked.
On parts, genuine Gelco gaskets, dampers, and cap components are the right call where they’re still available. For discontinued pieces, quality aftermarket equivalents are fine if they match the vent geometry precisely. Our stance is simple: repair and reseal a sound Gelco unit rather than replace it. If the firebox or vent collar is rotted through, replacement is the safer spend, and we’ll say so plainly.
See the difference
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After
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After
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AfterGelco Service Pricing in Overland
Every job is priced per job by a written estimate, and the estimate is free. Cleaning and inspection are quoted together as one flat price agreed before we book. Repair work, from re-gasketing a vent collar to relining a flue, depends on what the camera shows and on access, and tight rooflines on Overland’s dense lots can affect the labor. Nothing gets recommended without camera evidence you can see for yourself, and we’ll tell you plainly when work can safely wait. Call (866) 596-7310 for an exact quote. Estimates are free.

Serving Overland, MO – Our Local Coverage Area
We serve Overland and nearby communities. Use the map below to see the area we cover. If you’re nearby, we can almost certainly help.
FAQs – Gelco Chimney Cleaning in Overland
No. We’re an independent Gelco service provider and have no partnership, authorization, or warranty relationship with the manufacturer. We service Gelco equipment on its own merits through inspection, cleaning, and repair, and source quality parts that fit it correctly.
A compromised connection between the insert collar and the clay-tile flue is almost always the cause. The flue backdrafts until it warms up, which is why a cold fall morning shows it first. A Level 2 inspection confirms the transition and any creosote trap or spalling, and resealing or relining usually resolves it.
Failed gaskets and seals at the vent collar let in odor and draft, and Overland’s humid summers make those seals fail faster. Air-conditioning season can push basement air back through the vent, which is why the smell shows up in warm months. A vent collar check and re-seal is the first step. Call (866) 596-7310 to book an inspection.
Usually yes, if the original tile was never lined after the coal-to-wood-to-gas conversions that are common in Overland bungalows. Unlined clay tile with failed mortar joints turns the insert transition into a creosote trap. The Level 2 inspection determines whether relining is necessary or resealing the transition is enough, and we show you the camera evidence before recommending either.
Yes, in most cases. We repair and reseal what’s still sound and match the vent geometry with quality aftermarket equivalents when genuine components are discontinued. If the housing is rotted through, we’ll tell you replacement is the safer spend. Call (866) 596-7310 for an exact quote.
Masonry expands and contracts through our freeze-thaw winters, which cracks mortar joints and spalls the weather side of exterior brick stacks. That movement stresses the seals where a Gelco assembly meets the chimney, so glass-door gaskets and cap screens degrade and let water in. Regular inspections catch it early, and estimates are free at (866) 596-7310.
Service Areas Near Overland
We also serve homeowners in Gelco-equipped homes across St. Louis, Clayton, Jennings, Webster Groves, and Lemay. If you’re just outside Overland, including toward St. Ann or University City, call and we’ll confirm coverage. We’re an independent provider serving Overland and its neighbors.
Book Your Gelco Service in Overland Today
Call (866) 596-7310 for a free estimate on Gelco chimney cleaning, Level 2 inspection, gas fireplace service, or cap replacement in Overland. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday. Nothing gets recommended without camera evidence you can see, and the written estimate sets the final price.
Written by the team at Hawk Chimney Sweep.