You will need to grind out the crumbled and cracked mortar and replace it. It may cost you $200 to $500 for materials and tools to repair your fireplace and chimney. A mason or contractor will charge you $1,000 to $1,500 for a chimney repair project.
As a result, chimney masonry should be protected from exposure to water. That’s why many chimney professionals recommend homeowners apply a waterproof sealer to protect the chimney from water damage. … The high water pressure can crack the brick’s...
Stainless steel flue liners generally last for 15 to 20 years (though low quality liners may not even last for five).
Flue Damage Another hidden danger that may be lurking in your chimney is damage to the flue. … If the flue becomes cracked carbon monoxide, an odorless and colorless toxic gas known as the silent killer, can become trapped inside your home.