Chimney liner replacement cost in Lexington, KY is the question that comes up once a sweep or inspection flags a cracked, corroded, or missing liner — and getting it done before the first cold snap matters, since a compromised liner is a fire and carbon monoxide risk the moment the fireplace or furnace flue actually gets used.
What Does a New Chimney Liner Cost in Lexington, KY?
A stainless steel liner typically runs $2,500–$7,000 installed, depending on flue height, diameter, and whether insulation is required for the appliance.
Height and access drive most of the range — a single-story flue is a different job than a two-story chimney needing a longer run and more labor. Insulation is the other variable: per the Chimney Safety Institute of America, liners serving solid-fuel appliances like a wood-burning fireplace or wood stove need to be insulated, while liners for gas or oil appliances generally do not, since those flue gases run cooler. A wood-burning setup that needs insulation sits toward the higher end of the range; a gas insert reline is often the lower end. Our cracked chimney liner page covers how we confirm a liner actually needs replacing rather than just a repair.
Is Chimney Liner Replacement Something I Should Do Myself?
No — a liner install is a code-driven job tied to flue sizing for your specific appliance, and getting the diameter wrong creates a draft or carbon monoxide problem rather than fixing one.
Flue liner sizing has to match the appliance’s output, not just the existing masonry opening, which is why CSIA-trained installers measure and calculate rather than just dropping in a liner sized to fit the flue. Getting this wrong is not a cosmetic mistake — an undersized or oversized liner can cause poor draft, creosote buildup, or flue gas spillage into the house. This is one of the few masonry jobs on our list that we would tell a confident DIYer to skip, the same way we would with a full chimney rebuild.
How do I know if my chimney liner needs replacing?
Visible cracks, gaps, missing sections, or heavy corrosion found during a sweep or Level 2 inspection are the usual triggers — a liner that is intact but sooty just needs cleaning, not replacement.
Do all chimneys have a liner?
Most built to modern code do, but many older Lexington-area chimneys were built without one or with a liner that has since deteriorated — that gap is often what an inspection turns up.
Can I use my fireplace with a bad liner just this winter?
Not safely — a compromised liner lets heat and combustion byproducts reach the masonry and framing directly, which is a fire and carbon monoxide risk each time it is used, not just a long-term wear issue.
Had a sweep flag your liner ahead of this winter? Get a free estimate or call or text (859) 310-1209.
Related: Cracked Chimney Liner | Chimney Rebuild & Crown Repair | Chimney Repair & Tuckpointing
Source: Chimney Safety Institute of America, Homeowner Resources.
Last updated: September 19, 2026