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 Dallas, TX | Flint Chimney Co Dallas
Gelco chimney cleaning in Dallas typically costs $189 – $329 for a standard sweep and inspection, and most jobs wrap up in 90 minutes to two hours. We’re Flint Chimney Co Dallas, and we’ve been servicing Gelco prefab and masonry chimneys across the metroplex since 2002 as part of the Garrison Partners family. The thing that separates our Gelco work here: we know Dallas squirrel damage comes from pecan-tassel decay east of the Trinity, and we stock the stainless caps that actually stop re-entry. Call (361) 492-4099 for a written estimate before any tool leaves the truck.
Why Dallas Residents Choose Us for Gelco Service
We see Gelco chimney failures weekly in Dallas, not occasionally. That repetition teaches you what a factory diagram can’t. Hank Delano, our owner, learned the trade at Los Angeles Trade-Technical College and has spent the better part of two decades putting that education to work as a Dallas Chimney Sweep on roofs across the city. He and the crew know which Gelco cap models fail fastest under North Dallas tree canopy, which flue tiles crack first after long humid summers, and which prefab sections rust out when roof flashing lifts during spring storms.
We’re an independent Gelco service provider, not a manufacturer-authorized repair center. That independence means we recommend the part that actually solves the problem, not the one with the best margin. When OEM Gelco cap mesh fails because it’s half-inch galvanized that squirrels chew through in two seasons, we install aftermarket stainless steel caps with half-inch openings sized to the chimney. We also carry Gelco sales & service parts knowledge that covers the round galvanized double-wall prefab models common in 1970s – 1990s Dallas tract homes, plus the clay-tile-lined masonry flues from the 1960s – 1980s brick builds.
Every job gets a written price before work starts. Every repair carries our 365-Day Done Right Promise in writing. And a live person answers the phone around the clock at (361) 492-4099.
Styles & brands we work with





Common Gelco Chimney Cleaning Problems We Solve in Dallas
- Squirrel-chewed cap mesh. Gelco caps from the 1990s used standard galvanized wire that fails within 15 – 20 years under North Dallas tree canopy. We see this constantly in Preston Hollow and Lake Highlands, where squirrels shred the mesh, then birds and bats move in. The fix is a stainless cap with half-inch openings, installed after the flue is cleared.
- Nest debris and animal middens in seldom-used flues. Dallas’s hot, humid summers mean fireplaces sit unused for months. Gelco prefab chimneys become sheltered nesting cavities for chimney swifts, wasps, and squirrels. A standard sweep removes the debris; a cap replacement keeps it from returning.
- Moisture-warped clay flue tiles. In older Gelco clay-lined masonry chimneys around Dallas, long humid periods without fires cause tiles to absorb moisture, crack, and flake into the firebox. We find fissured tile sections during Level 2 inspections and recommend relining with DuraFlex or HeatShield rather than patching.
- Surface rust and through-wall corrosion on prefab metal chimneys. Dallas high winds and heavy rain lift roof flashing around Gelco prefab chases, letting water run down the outer shell. Once through-wall rust appears, prefab modules need replacement. We scope the flue to show you exactly where the corrosion sits before recommending anything.
- Hardened creosote glaze from pecan and oak. Dallas burns a lot of pecan and oak. One heavy evening of poorly seasoned wood in a seldom-used Gelco prefab flue can leave a hardened glaze that routine brushing won’t remove. We identify glaze during inspection and apply chemical treatment rather than forcing wire brushes through.
Gelco Service in Dallas: What Local Conditions Mean for Your Equipment
Here’s the Dallas-specific fact that changes how we approach Gelco service. Dallas’s older pecan orchards sit east of the Trinity River, and pecan-tassel decay gives squirrels a high-protein, low-effort food source that keeps populations unusually dense in Lake Highlands and White Rock neighborhoods. Dense squirrel populations mean more chewing. More chewing means more open flues. And an open Gelco flue in a 1980s tract home off White Rock Trail is an invitation for chimney swifts to nest inside the double-wall pipe. Last April, our techs pulled a Gelco prefab chimney in Lake Highlands where the galvanized cap had been chewed open by squirrels. Inside: two gray squirrel middens and a dead chimney swift. We removed the nest debris, wire-brushed the interior Gelco flue, and installed a custom stainless steel cap with half-inch openings. That homeowner has had zero re-entry all winter. If you own a Gelco chimney east of the Trinity, the question isn’t whether squirrels will find your cap. It’s whether the cap you have now is stainless or galvanized.
Gelco Models & Products We Service in Dallas
We work on the Gelco equipment most common across Dallas housing stock: Gelco Prefabricated Metal Chimney systems with round galvanized outer shells and double-wall construction, typical of 1970s – 1990s suburban builds; Gelco Clay Tile Lined Masonry Flues in 1960s – 1980s brick homes; Gelco Cast-in-Place Chimney Crowns; and Gelco Multi-Flue Cap Assemblies. When parts are needed, we stock aftermarket stainless steel caps and flue liners sized to Gelco dimensions for fast turnaround across Dallas. We prefer aftermarket where the original was under-tough, like half-inch mesh. We repair when the crown, cap, and flue remain serviceable. Once prefab modules show through-wall rust or tile sections are fissured, we recommend replacement and won’t band-aid a chimney past its safe lifespan.
See the difference
Before
After
Before
After
Before
AfterGelco Service Pricing in Dallas
A standard Gelco chimney sweep and inspection in Dallas runs $189 – $329, depending on chimney height, access, and what we find inside. Cap replacement with a stainless steel half-inch-mesh cap typically adds $150 – $300. Crown coating runs $225 – $450. Squirrel or bird nest removal is included in the sweep when it’s accessible, but heavy middens or dead animals may add $50 – $150 for debris disposal and sanitizing. Every estimate is written and in your hand before work begins. No exceptions. Call (361) 492-4099 and we’ll walk through what your Gelco chimney actually needs.
Serving Dallas, TX - Our Local Coverage Area
We’re based in the Dallas 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 Dallas
Gelco prefab chimneys from the 1990s shipped with standard galvanized cap mesh that squirrels chew through in one or two seasons, especially east of the Trinity where pecan orchards keep squirrel populations dense. Once the mesh is open, the flue becomes a nesting cavity for chimney swifts, wasps, and more squirrels. The fix is a stainless steel cap with half-inch openings. Call (361) 492-4099 and we’ll inspect what’s on your chimney now.
Yes, in most cases. A Gelco cast-in-place crown can be cleaned, sealed, and coated without pulling the prefab chimney apart. We inspect for cracks and spalling first. If the crown is structurally sound, we coat it with a waterproof sealant. If it’s crumbling, coating alone won’t hold, and we’ll recommend replacement instead of charging you for a coating that fails in six months.
For a Gelco chimney that’s seen regular use and no known damage, a Level 1 inspection with the sweep is usually enough. But if you’ve had squirrels, water leaks, lifted flashing, or tile flaking in the firebox, we recommend our Chimney Inspection in Dallas with Level 2 camera work. The camera shows exactly what’s happening inside the flue, and you get the footage. That’s how you know whether a repair is real or whether the work can wait.
Gelco prefab metal chimneys don’t get waterproofed the way masonry does, but the chase top, flashing, and cap need sealing and maintenance to keep water out of the double-wall pipe. Water intrusion through lifted flashing is the main driver of surface rust and through-wall corrosion on Dallas Gelco prefabs. We check flashing sealant on every Gelco service call.
It can be, because Dallas pecan and oak burn hot and produce a lot of creosote when the wood isn’t fully seasoned. One heavy evening of green wood in a Gelco prefab flue that sat unused through a humid summer can leave a hardened glaze that routine sweeping won’t remove. We test for glaze and apply chemical treatment when needed. Call (361) 492-4099 for an exact quote, and we’ll tell you what your flue actually needs.
Service Areas Near Dallas
We serve Dallas and the surrounding communities, including Dallas service area coverage throughout the metroplex. Our Gelco crews regularly work in Irving, Carrollton, Lakewood, Highland Park, and Duncanville. If you’re nearby and own a Gelco chimney, we can help. We also offer Gelco service in Irving and Gelco service in Carrollton with the same written-price policy.
Book Your Gelco Service in Dallas Today
If your Gelco chimney needs a sweep, a cap, or a straight answer about what’s actually wrong, call (361) 492-4099. We’ll schedule a visit, put the price in writing before work starts, and back any repair with our 365-Day Done Right Promise. A live person answers, day or night.
Written by Hank Delano, Owner at Flint Chimney Co Dallas, serving Dallas since 2002.