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.
Fast, Reliable Fireplace Repair Across Union City
Fireplace repair in Union City usually runs between $180 and $2,400 depending on what’s actually wrong, from a $180 pilot assembly replacement to a $2,400 firebox rebuild. Most of the homes we service in Shannon Villas, Tell River, and along Roosevelt Highway were built between 1990 and 2010, which means factory-built fireplaces with manufacturer-specific parts that don’t age the way old masonry chimneys do. When something fails in a prefabricated fireplace, off-the-shelf parts won’t fit, and the repair takes a technician who actually knows these systems. That’s what we do. Call (678) 263-7908 and we’ll get you a written price before any work begins.

Why Ashby Chimney Atlanta Is Union City’s Preferred Fireplace Repair Company
Union City homeowners call us because we answer the phone, show up in the window we gave you, and put the price in writing before touching anything. Nathan Corliss runs our team under the Kingswell Guarantee, which is the standard that separates us from the no-show operations that gave this trade its bad name. Every job since 2002 has come with two things: a written price before work starts and a written guarantee when it’s done. If a covered repair fails within the guarantee period, we come back and fix it free. That’s the 365-Day Done Right Promise, and it’s not an add-on, it’s the contract.
Our techs know the housing stock here. They know that a two-story traditional in Tell River with a prefabricated chimney and a corroded chase cap is probably leaking into the wall cavity, not the firebox. They know the 1980s ranches off Flat Shoals Road often still have original clay flue liners that crack under February freeze-thaw cycles. That local pattern recognition means faster diagnosis and fewer return trips. Background-checked, uniformed technicians arrive in a marked vehicle, and they’ll walk you through what they find with the camera report to back it up.
Styles & brands we work with





Fireplace Insert Installation in Union City
Fireplace insert installation in Union City typically costs $2,900 to $6,500, and it’s the repair that pays for itself when a masonry fireplace has a cracked flue liner or a firebox too far gone to rebuild economically. Instead of tearing out the chimney and rebuilding it, we install a sealed, high-efficiency insert inside the existing firebox and run a new liner through the old flue. For homes off Red Oak Road or deeper into the Union City suburbs, this is often the smartest financial decision on an older fireplace, because it sidesteps the underlying liner problem entirely.
When an insert solves the problem
If your home was built in the 1980s or earlier, your chimney likely has a clay flue liner. After thirty-plus years of humid Georgia summers and hard winter cold snaps, those liners crack, and cracks let heat and carbon monoxide reach combustible framing. An insert with a properly sized liner seals that path. We use DuraFlex and other trade-grade liner systems, and every install gets a camera report showing the liner seated correctly from top to bottom.
Gas and wood insert options
Gas inserts are the most common install we do in Union City, because they run on the natural gas already feeding most homes here. Wood inserts work well too for homeowners who want real heat output during the January cold snaps. Nathan walks every customer through the BTU output, venting requirements, and clearance specs before anything gets ordered, so you know exactly what the insert will and won’t do for your living room.
Gas Fireplace Installation in Union City
Gas fireplace installation in Union City runs $3,200 to $7,800 for a complete install, including gas line connection, venting, and finishing. Newer Union City homes built after 2000 frequently have prefabricated wood-burning fireplaces that homeowners want to convert to gas for the convenience. The catch is that conversion isn’t always a bolt-on job, especially when the original firebox penetration wasn’t sealed correctly. Our techs see this constantly: factory-built gas fireplaces with unsealed firebox penetrations that let carbon monoxide into living spaces during winter cold snaps when the unit runs for hours at a stretch.
Venting and sealing done correctly
The manufacturer’s venting specs are non-negotiable on these installs. A fireplace that looks like it’s drafting fine can still be leaking at the penetration points, and you won’t smell or see that leak. Part of our install is a pressure test and CO check at the firebox face, not just a visual confirmation the flame looks right. We source components from Olympia Chimney and Famco so the parts match what the fireplace manufacturer intended.
Conversion from wood to gas
Converting a wood-burning fireplace in Union City to gas means more than swapping logs. The damper may need to be removed or locked open, a gas line run to code, and the firebox sealed properly for gas combustion temperatures. We’ll quote the full scope in writing before the work starts, including the gas line work and the finish you choose for the front face. No surprises on the invoice, ever.

Trusted Brands We Service in Union City
We stock parts from Copperfield, HeatShield, Gelco, and other recognized chimney-trade brands, and we keep common replacement components on our service vehicles so Union City jobs don’t stall while we order from a distributor. Factory-built fireplaces need manufacturer-specific components, and we won’t substitute a generic part that fails in nine months. If your fireplace is a brand we haven’t serviced before, we’ll get the right parts ordered same-day and scheduled as soon as they arrive. Most repairs use two or three brands depending on what’s failed, and we’ll show you exactly what we’re installing and why.
See the difference
Before
After
Before
After
Before
AfterCommon Fireplace Repair Problems We See in Union City Homes
- Corroded factory chase caps on prefabricated chimneys. Union City’s humidity and freeze-thaw cycles eat through cheap metal caps in less than a decade. Rain seeps into the chase, stains the ceiling near the fireplace, and rots the framing before you see any exterior damage.
- Cracked clay flue liners in 1980s ranches. Homes off Flat Shoals Road and around the older Union City streets often still run original liners. Freeze-thaw stress over thirty winters cracks them, and the resulting smoke pulls into the living room while the flue looks fine from the top down.
- Warped dampers from repeated thermal cycling. A damper that won’t close or won’t open fully is a draft problem and an energy leak every month of the year. We see it all over Union City, especially on fireplaces that see heavy winter use and then sit unused through the humid summer.
- Improperly sealed gas firebox penetrations. This one’s invisible and dangerous. Gas fireplaces in newer Union City homes often have unsealed penetrations where the gas line and wiring enter the firebox, and during long winter runs, CO seeps into the room. A simple seal check during any service call catches it.
Pricing for Fireplace Repair in Union City, GA
Here’s what Union City homeowners should expect to pay. Pilot light repairs run $150 to $300. Damper replacement, $275 to $650 depending on whether it’s a standard throat damper or top-sealing unit. Firebox repairs start around $450 for minor mortar work and go to $2,400 for a full rebuild. Gas log and burner assembly replacement, $400 to $900. A chase cap replacement on a prefabricated chimney runs $350 to $700. The price you’re quoted is the price you pay, because every Union City job gets a written price before work starts. Call (678) 263-7908 for a free estimate with no obligation.
We Also Serve Cities Near Union City
Our crews handle Fireplace Repair across the south metro. If you’re in Fairburn, Atlanta, or Decatur, we cover those areas too. The same written pricing and guarantee apply whether the job is Fireplace Repair in Union City or one town over. Call and we’ll route the nearest available tech.
Serving Union City, GA - Our Local Coverage Area
We’re based in the Union City 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 About Fireplace Repair in Union City
Once a year, regardless of how often you use it. Factory-built fireplaces in Union City fail from weather exposure as much as from use. The humid subtropical climate corrodes chase caps and flashing even when the fireplace sits idle, and a yearly inspection catches a $350 cap replacement before it becomes a $2,000 wall cavity repair. Call (678) 263-7908 and we’ll schedule your inspection around your calendar, not ours.
Because the metal components on prefabricated chimneys age faster than the rest of the house in this climate. Union City’s humidity and freeze-thaw cycles corrode factory chase caps, flashing, and dampers within 15 to 20 years, even though the fireplace itself looks new from inside the living room. The house being newer doesn’t protect the chimney chase from what Georgia weather does to exposed metal. Call us and we’ll inspect it before water gets into your walls.
Third-degree creosote is a hard, glossy, tar-like coating that forms when a chimney is used with green wood or insufficient draft, and it’s flammable enough to sustain a chimney fire. Union City homes with fireplaces that go years between inspections often have hidden third-degree creosote deposits from burning unseasoned wood or packing fires too tight during cold snaps. It can’t be removed with a brush; it requires mechanical removal or chemical treatment. If we find it, we’ll show you the camera footage and give you a written quote for removal.
Yes, and that’s actually the most common reason we install inserts in Union City. A cracked clay liner doesn’t require a full chimney rebuild if you’re installing a sealed insert with a new liner running through the old flue. The insert bypasses the damaged liner entirely, which means you get a functioning, efficient fireplace without paying for a teardown. We’ll run a camera inspection first to confirm the chimney structure is sound enough to hold the liner, then give you a written price. Call (678) 263-7908.
The most likely cause in Shannon Villas is a cracked original clay flue liner letting smoke pull back into the house, not a dirty flue. Freeze-thaw stress over winters causes hairline cracks in the liner that a visual look from the top won’t reveal. A Level 2 camera inspection will show exactly what’s happening inside your flue. Call us and we’ll find the real cause instead of guessing, and you’ll get the written price for whatever fix is actually needed.
Written by Nathan Corliss, Owner at Ashby Chimney Atlanta, serving Union City under the Kingswell Guarantee since 2002. If it’s not done right, we make it right.