Level 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.
Caps & crowns
Masonry repair
Before
After
Before
After
Before
AfterGelco Chimney Cap & Crown in Marietta: What to Know First
We provide independent Gelco chimney cap and crown service in Marietta, typically completing cap replacements and crown repairs within one to three business days of inspection. Every job starts with a camera-scan of the flue and a written price before any work begins - no exceptions. If you own a Gelco cap or crown and you’re seeing rust streaks, water in the firebox, or masonry deterioration on your chimney top, call us at (470) 288-2763. We’ll run the camera, show you what we found, and hand you a written scope with a fixed price before we touch a tool.
This page is for Marietta homeowners who already have Gelco products installed and need honest assessment of whether to repair, coat, or replace. We’re not Gelco dealers. We’re an independent service provider who sources Gelco-compatible parts through Haven’s buying network alongside DuraFlex, HeatShield, and other proven lines.
How Gelco Products Fail - and How We Fix Them
- Gelco Single-Flue Caps (Model A and B Series): The 304 stainless mesh on these caps holds up well in Marietta’s humidity, but the spot-welded corner seams crack after 8-12 years of thermal cycling. We see this most often on homes near Kennesaw Mountain where afternoon sun hits the stack hard, then evening shade drops the metal temperature fast. When we find seam separation, we don’t caulk over it. We source a replacement cap with fully welded corners or move the homeowner to a multi-flue design if the flue count allows.
- Gelco Multi-Flue Caps (Premier and Ultra Series):strong> The lid-over-base design sheds water until the stainless lid pins back out of their aluminum brackets. This is a known Gelco issue: dissimilar metals expand at different rates, and after enough Marietta summers the pin holes wallow out. We replace with pinned-through designs or step up to a fully welded lid assembly, depending on chimney width and the homeowner’s timeline.
- Gelco Crown Coat (Brushable Sealant): Homeowners apply this hoping to avoid a full crown pour, but Crown Coat has a specific failure mode on Georgia chimneys: it traps moisture if applied over active spalling, and our freeze-thaw cycles - fewer than up north, but sharp when they hit - pop it off in sheets. We only specify Crown Coat after mechanical grinding removes loose material and the crown passes a moisture-meter reading below 15 percent.
- Gelco Top-Mount Dampers Integrated with Caps: The cast-aluminum throat plates warp when homeowners burn pine-heavy loads, which is common in Marietta where split pine is cheap and plentiful. A warped plate won’t seal, and the homeowner loses the energy savings that sold them the damper. We assess plate flatness with a straightedge, replace just the plate if the frame is square, or quote a full assembly if the frame has twisted.
- Gelco Animal-Proofing Screens (Add-On Mesh): The ⅝-inch mesh keeps out raccoons but clogs with catalpa and oak catkins every April and May. We’ve pulled screens packed solid on homes near Marietta Square where the mature canopy is thick. We clean what we can, but if the homeowner’s chimney is under heavy tree cover we recommend switching to ¾-inch mesh or a solid-top cap with side vents - better airflow, less maintenance.
Our Gelco Chimney Cap & Crown Process
- 1
Call and schedule. A live person answers, day or night. We book a Level 2 inspection with camera scan.
- 2
Camera first, quote second, work third - in that order, every time. Corrine Halstead trained every tech on this sequence. We run the camera down the flue, photograph the crown from the roof, and moisture-map the masonry before naming a price.
- 3
Parts decision. If the cap is salvageable, we say so. If replacement is needed, we quote OEM Gelco or a compatible aftermarket unit from our Haven network, with the trade-offs written out: warranty coverage, gauge of metal, expected lifespan in Marietta’s climate.
- 4
Repair or replace. Crown work gets ground, sealed, and poured if structural. Cap work gets measured, fitted, and secured with stainless fasteners - never sheet-metal screws that rust out in three years.
- 5
Test and document. We run water over the crown, check cap fit with a smoke pencil, and burn a test fire if conditions allow. Every photo goes into your record under Haven Standard Clause 4.
- 6
Written warranty and follow-up. You get a written scope, written price, written warranty, and our 365-Day Done Right Promise. If it’s not right, we make it right.
BeforeAfterWhat Gelco Chimney Cap & Crown Costs in Marietta
| Service | Typical Range | What Moves the Price |
|---|---|---|
| Gelco single-flue cap replacement | $340-$580 | Flue size, mesh gauge, access height |
| Gelco multi-flue cap replacement | $620-$1,100 | Chimney width, lid style, damper integration |
| Crown repair with Crown Coat | $280-$450 | Prep work needed, crown square footage |
| Full crown pour (concrete) | $1,200-$2,400 | Chimney size, form complexity, reinforcement |
| Top-mount damper plate replacement | $180-$340 | Plate material, frame condition |
These are real Marietta prices for Gelco-compatible work, not bait-and-switch ranges. The only way to know your exact number is to get the camera up and see what’s actually happening on your chimney. Call (470) 288-2763 - estimates are free, and we bring the camera on every visit.
Why Marietta Homeowners Call Emberly Chimney Cleaners Marietta for Gelco Work
We’ve inspected more than 38,000 chimneys since 2009, and a healthy share of those were Gelco caps on homes built during Marietta’s 2015-2020 building boom. We know which Gelco series were spec’d by which builders, which corners were cut, and how to fix them without selling you what you don’t need.
Our techs are background-checked, uniformed, and named before they arrive - you’ll get a text when they’re on the way. Every price is written before work starts, every job gets a photo record, and every repair is backed by our 365-Day Done Right Promise. If Gelco parts are back-ordered, we have DuraFlex, HeatShield, and other proven lines ready through Haven’s buying network. We’re independently owned and operated, not a franchise, and we’ve been at this long enough to know that showing you the problem beats telling you about it.
FAQs
No - but Gelco’s original warranty on most caps is 10 years from manufacture date, and many Marietta homes are already past that. As an independent Gelco service provider, we don’t extend Gelco’s factory warranty, but our 365-Day Done Right Promise covers our workmanship and the parts we install. Bring us your paperwork and we’ll tell you exactly where you stand.
Yes, for most lines. Gelco maintained consistent sizing on single-flue caps through multiple model years, and Haven’s buying network stocks common sizes. For discontinued multi-flue lids or custom widths, we fabricate compatible solutions from Olympia Chimney or Copperfield stock. We’ll never leave you waiting on a back-order without a backup plan.
Replace it if you can stick a pencil into cracks deeper than ¼ inch, if the crown is thinner than 2 inches at any point, or if spalling has exposed the brick below. Coat it only after grinding and if the underlying concrete is sound. We’ll show you the moisture-meter reading and the camera footage so you can decide with real information, not pressure.
Most single-flue replacements take 90 minutes to two hours on site. Multi-flue caps or jobs requiring damper integration run three to four hours. We book a half-day window, arrive within the texted ETA, and clean the roof and yard before we leave. Call (470) 288-2763 to check this week’s availability - estimates are free.
Rust runs down the flue, stains the masonry, and eventually opens gaps where water enters the chimney structure. In Marietta’s humid summers, that water drives mold in the smoke chamber and accelerates spalling in the crown below. The repair gets more expensive, not less. We can show you exactly where the water’s going on camera - call (470) 288-2763 and we’ll book a look.
Written by Corrine Halstead, Owner, Emberly Chimney Cleaners Marietta at Emberly Chimney Cleaners Marietta, serving Marietta and nearby areas.