Chimney Caps. Chimney cap repair or replacement costs $115 to $850. This screen sits at the top of a chimney, allowing smoke to escape while preventing rain, snow, animals, ...

If the chimney cap and attached spark guard are corroding, ... The cost to clean a chimney typically runs between $105 and $330. ... You can repair or replace some of the chimney parts yourself.

Other common chimney repairs are the parts of the chimney that extends above the roofline, like flashing, crown and cap. Rainwater often erodes these parts of the chimney, causing the need for repair.

According to Sarras, you need to make sure you get a chimney cap sized appropriately for your chimney. In particular: a cap the wrong height can mess up the flow of gases through chimney, possibly ...