A chimney liner is a protective layer that lines the interior of your chimney, safeguarding the chimney walls from the intense heat and corrosive byproducts of combustion. There are several types of liners, including stainless steel, clay tiles, and cast-in-place liners, each offering different levels of protection and efficiency. Chimney liner installation involves placing a new liner inside your chimney to replace an old or damaged one, ensuring proper ventilation and protection. Chimney liner repair addresses issues such as cracks, deterioration, or improper installation of existing liners. Effective liner repair or replacement is crucial for preventing dangerous chimney fires and ensuring optimal performance of your fireplace or stove.