The average cost of installation or replacement of a chimney cap is $335, with a range of as low as $30 or as high as $920. Material is a major factor in the price.

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 ...

Water that enters a chimney can freeze and break apart a chimney in just a few years. The first step is to remove the old chimney cap and repair any of the stones at the top that might be loose.

Check your chimney cap (or install a new one). A well-functioning chimney cap will help keep moisture out of your chimney, for protection against autumn downpours and winter storms.

Chimney crown repair and replacement costs range from simple fixes of $100 to expensive replacements of around $3,500. On average, homeowners can expect to pay $850 for a chimney crown repair.