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
AfterHeatShield Chimney Repair in Marietta: What to Know First
We provide independent HeatShield chimney repair in Marietta, typically completing most jobs within one to three business days after inspection. Most HeatShield liner and refractory repairs in our market run between $1,200 and $3,800 depending on whether we’re addressing localized joint failure or full smoke chamber parging. We don’t start any HeatShield work until you’ve seen the camera footage and have our written price in hand - that’s Clause 1 of the Haven Standard, and it’s how we’ve operated since 2009.
This page is for Marietta homeowners who know they’ve got a HeatShield product in their chimney system and need straight answers about what’s failing, what it’ll cost, and who can fix it without voiding whatever warranty coverage remains. If that’s you, call us at (470) 288-2763 or read on for the specifics.
How HeatShield Products Fail - and How We Fix Them
- Cerfractory Foam joint separation in HeatShield UL-Listed lining systems. The Cerfractory Foam mixture can pull away from stainless collars at the liner joints, especially where Marietta’s clay-heavy soil puts subtle settling stress on the chimney stack. We see this most in homes built during the 1985-2005 boom off Sandy Plains Road and in the Paper Mill Road corridor. Our fix: camera-locate the separation, remove the failed foam, re-prep the joint with HeatShield-compatible bonding agent, and re-apply to factory thickness. We pressure-test before we leave.
- Smoke chamber parging degradation in HeatShield’s Chamber-Tech 2000 installations. The parging layer thins or cracks when the original application missed the 2-inch minimum thickness spec, which happens more than it should. In Marietta’s older ranch homes near Whitlock Avenue, we’ve found Chamber-Tech that’s worn to paper-thin in spots. We re-parge to NFPA 211 spec using HeatShield-compatible refractory or, when the homeowner prefers, a Gelco smoke chamber alternative that meets the same temperature rating.
- Flue gasses bypassing the HeatShield liner through hidden gaps. This isn’t always visible from the firebox. The gap forms where the Cerfractory sleeve ends short of the flue tile or where a previous installer skipped the mandatory collar expansion joint. Our Level 2 camera scan finds it every time. We sleeve with DuraFlex stainless or re-line with new HeatShield, depending on what the footage shows and what you’ve budgeted.
- Thermal shock cracking after improper curing. HeatShield liners need a controlled first-fire sequence that many homeowners never received in writing. Fast temperature spikes from gas-log retrofits - common in East Cobb and Marietta infill renovations - can spider-crack the surface. We assess crack depth with the camera, map the pattern, and either patch with OEM-compatible refractory or recommend full re-line if the cracks penetrate to the substrate.
- Moisture intrusion at the crown accelerating HeatShield liner deterioration. Marietta’s March-May storm season drives water down a compromised crown, and the Cerfractory Foam absorbs it at any exposed edge. The liner delaminates from the inside out. We repair the crown first, often with a Gelco crown seal or pour, then address the HeatShield damage. Fixing the liner without stopping the water is a waste of your money, and we’ll tell you so before we quote.
Our HeatShield Chimney Repair Process
- 1
Call and schedule. A live person answers, day or night. We ask whether you know your HeatShield product line or have prior inspection paperwork. We book a Level 2 inspection slot, usually within 48 hours in Marietta.
- 2
Camera-first inspection. Corrine Halstead’s techs run the camera down the flue before touching tools. You watch the feed on a tablet if you’re home. We document liner condition, joint integrity, smoke chamber thickness, and any moisture staining. This becomes your photo record under Haven Standard Clause 4.
- 3
Written price, written scope. We name the fix, the parts source (OEM HeatShield, compatible aftermarket, or DuraFlex/Gelco alternative), and the total. No work starts until you have this in writing. Camera first, quote second, work third - in that order, every time.
- 4
Repair and pressure test. We complete the HeatShield repair to manufacturer spec or better, then run a pressure test on liner joints and a final camera pass to confirm the fix.
- 5
Documentation and guarantee. You receive the photo record, the written warranty, and our 365-Day Done Right Promise. If it’s not right, we make it right. That’s stamped on every job.
BeforeAfterWhat HeatShield Chimney Repair Costs in Marietta
| Repair Type | Typical Range | What Moves the Price |
|---|---|---|
| Localized Cerfractory Foam joint repair | $1,200 - $1,900 | Number of joints, access height, scaffolding need |
| Smoke chamber re-parging (Chamber-Tech 2000) | $1,800 - $2,800 | Chamber size, thickness required, whether throat damper must come out |
| Partial liner re-line with HeatShield-compatible sleeve | $2,400 - $3,400 | Linear feet, number of offsets, condition of existing collar hardware |
| Full liner replacement (HeatShield or DuraFlex alternative) | $3,200 - $5,500+ | Flue diameter, story height, whether the crown and chase need work first |
These are real 2024-2025 price ranges for the Marietta market, based on jobs we’ve completed from Kennesaw Mountain to the East Cobb line. Every estimate is free, and we honor our Free Second Opinion on any competitor’s written quote. Call (470) 288-2763 for your exact number.
Why Marietta Homeowners Call Emberly Chimney Cleaners Marietta for HeatShield Work
We’ve inspected and cleaned more than 38,000 chimneys since 2009, and a growing share of our Marietta work involves HeatShield systems installed during the 2000s building surge. Corrine Halstead grew up in Queens, trained at Apex Technical School in Manhattan, and has spent the better part of two decades on roofs across Marietta - including plenty of afternoons on older homes along Whitlock Avenue where the masonry tells its own story. She knows what HeatShield failure looks like in this specific clay-soil, humid-subtropical climate, and her techs are trained to spot the gap patterns that generic sweeps miss.
We’re independently owned and operated, not a franchise, and we source materials through Haven’s buying network from HeatShield, DuraFlex, Gelco, Olympia Chimney, Famco, and Copperfield specifically to keep customer prices honest. The 365-Day Done Right Promise applies to every HeatShield repair we touch. Background-checked, uniformed technicians. License number on the page. A named tech assigned, with a text when they’re on the way.
FAQs
Using an unauthorized installer can void remaining warranty coverage on newer HeatShield installations. As an independent HeatShield service provider, we document every repair with photos and manufacturer-compatible materials so you have a record if warranty questions arise later. For systems still under original warranty, we flag this during inspection and discuss OEM-part options. Call (470) 288-2763 and we’ll check your install date against warranty terms.
Most localized joint repairs or smoke chamber parging jobs finish in four to six hours. Full re-lines typically require a full day plus cure time before the first fire. We schedule to minimize your downtime and never rush the cure. For a timeline specific to your chimney, call for a free inspection.
We source both OEM HeatShield components and compatible aftermarket refractories through Haven’s buying network. We recommend OEM when warranty coverage is active or when the job spec demands it. For older systems where HeatShield has discontinued a specific collar or mix formulation, we use DuraFlex or Gelco alternatives that meet or exceed the same temperature and pressure ratings. The written quote names the part source before work starts.
The camera decides. Surface cracking confined to the Cerfractory topcoat often repairs with localized patching. Cracks that reach the substrate, multiple joint separations, or liner sections that have thinned below 1/4-inch typically mean replacement is the honest recommendation. We show you the footage, explain the threshold, and quote both options when both are viable. Nothing is recommended without camera evidence you can see for yourself.
Gap or crack in a HeatShield liner allows flue gasses, including carbon monoxide, to leak into wall cavities or living space. In Marietta’s tighter-built homes from the 2015-2025 construction wave, that risk compounds because there’s less natural air exchange. Creosote can also accumulate in hidden gaps and ignite. The repair can often wait a few weeks if the system isn’t in active use, but we don’t recommend burning through another season on a compromised liner. Call (470) 288-2763 for a free inspection and we’ll tell you honestly whether yours can wait.
Written by Corrine Halstead, Owner, Emberly Chimney Cleaners Marietta at Emberly Chimney Cleaners Marietta, serving Marietta and nearby areas.