Masonry repair
Sweep & inspection
Caps & crowns
Flue relining
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.
Trusted Gas Fireplace Repair for Marietta Homeowners
Gas Fireplace Repair in Marietta typically runs $150 to $600 depending on what has failed, and most jobs are done in a single visit. A fireplace that won’t light, flames that burn weak and blue, or a smell of gas when the unit turns on all point to problems that a trained tech should see sooner rather than later. At Hadley Chimney Marietta, we’ve repaired gas fireplaces across Cobb County since 2003, and we still do what most repair companies won’t: we show you the photo evidence before you spend a dime. Call (762) 249-4619 for a free estimate, or keep reading to understand exactly what a repair in Marietta involves and what it should cost.
Key Takeaways
- Most gas fireplace repairs in Marietta run $150 to $600, with thermocouple and thermopile replacements at the lower end.
- Hadley Chimney Marietta has repaired gas fireplaces since 2003 and operates under The Relay Visibility Guarantee.
- You receive a written price before work begins, photo documentation of every repair, and a 365-Day Done Right Promise.
- We respond to gas odors and other urgent symptoms quickly, and a live person answers our phone 24/7 at (762) 249-4619.
Styles & brands we work with
What Our Gas Fireplace Repair Service Includes
Gas fireplaces in Marietta homes fail for a small set of predictable reasons: pilot assemblies wear out, thermocouples stop sensing the flame, valves stick, and burners clog with dust from Georgia red clay and pollen season. Our repair service covers the whole unit, from the gas valve to the glass gasket, so you are not left chasing a second contractor for a second opinion. Here is what we actually do on a repair call.
Pilot Assembly Repair and Replacement
The pilot assembly is the small flame that stays lit and ignites your main burner. When it won’t stay lit, flickers, or lights with a weak yellow flame, the assembly is usually failing. We replace pilot assemblies with OEM parts from brands like Famco and Copperfield, clean the pilot orifice carefully, and adjust the flame to burn properly against the thermocouple and thermopile.
Thermocouple and Thermopile Replacement
These are the two small sensors that sit in the pilot flame. The thermocouple tells the gas valve it is safe to keep gas flowing, and the thermopile generates the small electrical current that powers the valve and wall switch. When either sensor wears out, the fireplace will not stay lit, or it shuts off minutes after you start it. Hadley Chimney Marietta tests both with a multimeter on every call so we replace only the part that has actually failed, then we confirm the millivolt reading before we leave.
Gas Valve Repair and Replacement
The gas valve controls fuel flow into the burner. A sticking valve may cause the fireplace to ignite slowly, fail to turn off, or produce a clicking sound without a flame. This is also the part that can leak gas internally, which is why a gas odor around the valve is a repair we treat as urgent. We source valves by the exact model number of your fireplace and pressure-test the gas line after installation to confirm there is no leak at any fitting.
Burner Cleaning and Replacement
A gas burner clogged with dust, pet hair, or construction debris burns unevenly and can produce soot on the glass or a yellow, lazy flame. We remove the burner, clean each port individually, and inspect the burner pan for rust or cracking. If the burner is too far gone, we replace it with a compatible unit rather than patching a part that will fail again next season.
Ignition System Repair
Whether your fireplace uses a standing pilot, an intermittent pilot, or a direct spark ignition, the ignition system is the most common cold-weather failure point. We diagnose the control module, spark electrode, and wiring, then replace the failed component. This is a repair where guessing costs you money, and we prefer to test with a meter before we quote a part.
Glass, Gasket, and Seal Replacement
The glass panel on a gas fireplace is not regular window glass; it is high-temperature ceramic rated to handle direct flame contact. Cracked or clouded glass is a safety issue and a sign that the gasket seal around it may be worn. We replace broken panels with the correct ceramic glass for your unit and install new gasket material so combustion gases stay inside the firebox where they belong.
Venting and Termination Cap Repair
Direct-vent gas fireplaces depend on a clear path from the firebox out through the wall or roof. Birds, leaves, and squirrel nests are common blockages in Marietta, especially in neighborhoods with mature oak trees like Indian Hills and East Cobb. We inspect the vent run, clear debris, repair loose termination caps, and correct vent pitch issues that cause the unit to overheat and shut down.
Remote and Wall Switch Repair
A fireplace that won’t respond to the remote or wall switch may have a failed receiver, dead batteries in the control box, or a wiring fault behind the wall. We test the signal with a known-good transmitter, inspect the low-voltage wiring, and replace receivers only when the wiring tests clean. This keeps the fix permanent instead of a rotating battery replacement.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Brands We Service for Gas Fireplace Repair
Hadley Chimney Marietta repairs gas fireplaces from every major manufacturer, and we also offer our Gas Fireplace Repair in Kennesaw, but we have deep hands-on time with the brands most common in Cobb County homes. HeatShield ceramic repair compound shows up often in our work on older fireboxes where the refractory panels have cracked from years of heat cycling. We are certified in the HeatShield system, so when the firebox liner is damaged, we can often repair it in place instead of recommending a full tear-out.
We also work steadily on units built with Olympia Chimney venting and Famco gas components. Olympia vent systems run through many direct-vent installations in Marietta neighborhoods like Whitlock and West Cobb, and we know their termination caps, pipe sizes, and clearance requirements by heart. We also handle Powder Springs Gas Fireplace Repair with the same expertise. Famco parts are common in gas log sets and burners, and we stock their most frequently replaced components like pilots, orifices, and connectors. If your fireplace is another brand entirely, we can still help; the diagnostic process is the same and the parts network we use covers nearly every gas fireplace sold in the Atlanta market.
Signs You Need Gas Fireplace Repair Right Now
- The flame burns yellow or orange instead of blue. A healthy gas flame is mostly blue with maybe a small yellow tip. A yellow, lazy flame means incomplete combustion, often from a clogged burner or vent restriction, and it produces carbon monoxide and soot. This is a repair, not a wait-and-see.
- You smell gas when the fireplace lights. A brief wisp when the burner first ignites can be normal, but a persistent gas odor while the fireplace runs or when the unit is off indicates a leak at a fitting, valve, or supply line. Call us at (762) 249-4619, and we will walk you through what to do while we send a tech your way.
- The fireplace shuts off after a few minutes. This is the classic thermopile or thermocouple failure pattern. The unit lights, warms up, and then the sensor output drops and the gas valve closes. It will usually restart, which makes people ignore it, but the problem gets worse and the unit will eventually stop lighting at all.
- The glass is blackened, cracked, or fogged between the panes. Soot accumulation on the inside of the glass means the fuel-to-air ratio is wrong, and you are burning improperly. Cracks or fog in the glass itself mean the seal has failed and combustion gases may be entering your living space. Both justify an immediate service call.
- You hear a clicking sound but nothing lights, or the wall switch does nothing. An intermittent pilot that clicks without lighting points to a failed ignition module, bad electrode, or gas delivery problem. A dead wall switch may be wiring or a bad receiver. Either way, the fireplace has failed in a way that will not fix itself by pressing the switch harder.
Our Gas Fireplace Repair Process – Step by Step
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Book a tracked appointment window with a live person. When you call (762) 249-4619, a real human answers and schedules your repair. You get live arrival tracking through The Relay Visibility Guarantee, so you see where your technician is and when they will pull up. No four-hour windows, no “sometime between noon and five.”
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Full diagnostic with photo documentation. Your uniformed, background-checked technician arrives, introduces themselves, and starts with a visual inspection of the entire unit: glass, gaskets, logs, burner, valve, venting, and the area around the fireplace. We test the thermocouple and thermopile with a multimeter, check gas pressure at the valve, and run the unit through a full ignition cycle while watching for faults.
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Written price before any work starts. This is the Hadley difference and it is non-negotiable. After the diagnostic, you get a written quote that lists the parts, labor, and the exact fix proposed. You approve it before we pick up a tool. There is no surprise charge at the door and no “while I’m here, you also need” upselling.
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Repair with quality parts and a written guarantee. We use OEM and industry-standard components from brands we trust: HeatShield for firebox repair, Famco for gas components, Olympia Chimney for venting, and Copperfield for chimney accessories. Every repair is backed by the 365-Day Done Right Promise, which means a written guarantee on every repair and a free second visit if the repair fails within a year.
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Final test, photo proof, and digital invoice. Before we leave, we run the fireplace through multiple ignition cycles, test for gas leaks at every fitting, and take before-and-after photos of the work. You receive a digital invoice you can pay from your phone, along with those photos so you can see exactly what was done. If you are home, we walk you through what we fixed and answer any questions. If you are not home, the photos speak for us.
See the difference
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AfterHow Much Does Gas Fireplace Repair Cost in Marietta?
Gas fireplace repair in Marietta costs between $150 and $600 for most common failures, with the biggest variable being the part that has failed. A thermocouple or thermopile replacement typically runs $150 to $280 including parts and labor. Pilot assembly replacement usually lands between $220 and $400 depending on whether it is a stock assembly or a model-specific unit. Gas valve replacement is the most expensive common repair, typically $350 to $600 installed, because the valve itself is a precision component and the job includes a full gas pressure and leak test afterward. Burner cleaning runs $120 to $200 as a standalone service, and full burner replacement starts around $300.
What changes the price is mostly the age and model of your fireplace. Older units with obsolete parts cost more because sourcing takes longer and compatible components are harder to find. Newer fireplaces often have modular parts that are faster to replace and less expensive in labor. What should never change the price is a technician adding on work you did not authorize. At Hadley, the written quote you approve before repairs start is the price you pay. Our estimates are free, and you get line-item detail, not just a bottom-line number.
To avoid overpaying, watch for companies that charge a diagnostic fee and then credit it only if you do the repair, or that quote one price on the phone and a different one at your door. We do neither. The number we quote you is the number on the written estimate, and if the repair needs a part we do not have on the truck, we’ll tell you the full cost before ordering anything.
Gas Fireplace Repair Near Marietta – Our Service Area
We repair gas fireplaces across Marietta and the surrounding Cobb County communities, including Kennesaw, Smyrna, Acworth, Powder Springs, Woodstock, Austell, and Vinings. We also serve homeowners in Fair Oaks and Lithia Springs. Most repair calls within our service area can be scheduled within a few days, and our tracked arrival windows mean you are never stuck waiting at home all afternoon. If you’re in a neighboring city, visit our Gas Fireplace Repair in Milton page or our Gas Fireplace Repair in Mableton page for details specific to those areas.
Serving Marietta, GA - Our Local Coverage Area
We’re based in the Marietta area and also provide Smyrna Gas Fireplace Repair, so we know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Frequently Asked Questions – Gas Fireplace Repair in Marietta
Gas fireplace repair is the process of diagnosing and fixing the components that make a gas fireplace light, stay lit, burn cleanly, and vent properly. That includes the pilot assembly, thermocouple, thermopile, gas valve, burner, ignition system, glass and gaskets, and venting. Hadley Chimney Marietta repairs all of these with a written price before any work starts, and every repair includes a written guarantee under the 365-Day Done Right Promise.
Most common repairs, like a thermocouple, thermopile, or pilot replacement, take 60 to 90 minutes on-site. A gas valve replacement or vent repair may take two hours or more depending on access and whether parts need to be sourced. We tell you the repair timeline when we give you the written quote, and we do not leave until the fireplace has been tested through multiple ignition cycles and we have confirmed there are no gas leaks at any fitting.
Gas fireplace repair in Marietta typically costs $150 to $600 depending on the failed component. Thermocouple and thermopile replacements run $150 to $280, pilot assemblies $220 to $400, and gas valves $350 to $600. You receive a written, line-item quote before any work begins, and that price does not change. Call (762) 249-4619 for a free estimate with exact numbers for your fireplace model.
Yes. We repair gas fireplaces from all major manufacturers, including units that use HeatShield firebox repair compound, Olympia Chimney venting, and Famco gas components. Our technicians carry OEM and industry-standard replacement parts, and we source model-specific components through a parts network that covers nearly every gas fireplace sold in the Atlanta market. If you can tell us the brand and model off the rating plate, we can repair it.
If you smell gas or the fireplace is producing soot or a yellow flame, we treat that as a priority repair and will schedule the soonest available appointment. A live person answers our phone 24/7, so call (762) 249-4619 and tell us what you’re experiencing. Do not continue using the fireplace, and if you smell gas strongly, shut off the gas supply at the fireplace valve, leave the room, and call your gas utility first.
Every repair we complete includes a written guarantee under the 365-Day Done Right Promise. If the repair fails within 365 days, we return for a free second visit to make it right. The guarantee is written, not verbal, and it covers the workmanship and parts we installed. That is a standing commitment on every repair, not a promotional offer.
Clear the area directly in front of the fireplace so our technician has room to work, and move any furniture, rugs, or decor within about six feet of the hearth. If you have pets, we would appreciate having them secured in another room during the visit. You do not need to turn anything off or disconnect anything; our technician handles the gas supply, electrical, and any venting access needed. If you are not home for the appointment, we will send before-and-after photos and a digital invoice so you can see and pay for the work remotely.
Schedule Your Gas Fireplace Repair Service in Marietta Today
If your gas fireplace is not lighting, burning yellow, or showing any of the warning signs on this page, do not wait for it to get worse. Call Hadley Chimney Marietta at (762) 249-4619 for a free, no-obligation estimate. A live person answers 24/7, and you get a written price before any work starts, photo documentation of every repair, and a full year of coverage under the 365-Day Done Right Promise.
Written by Cory Mitchell, Owner at Hadley Chimney Marietta, serving Marietta and Cobb County since 2003.