The average cost to reline a chimney is between $2,500 and $3,000 as of 2015. Factors influencing the cost include the height of the chimney, materials selected and labor. Costs also vary by region.
Options for relining a chimney include stainless steel, clay tile and poured-in-place materials. Clay tile costs approximately $10 per 24-inch joint, but requires a more labor-intensive process. Both clay tile and poured-in-place liners have a life expectancy of 50 years. Stainless steel liners are easier to install but typically cost $100 per foot for materials and installation. When installing metal flues, choosing the correct size pipe is essential to prevent premature failure of the liner.