Have you ever left your laundry out on the clothesline too long, and a rainstorm sprang up? Sure enough, you have a line full of clothes that need to be dried again. That’s pretty frustrating. Or have you ever taken a walk when the skies open up and leave you soaking wet? Again, not the most fun experience. Luckily, both you and your clothes can be dried pretty easily with no big amount of damage done. However, water in your chimney is a major problem. Fortunately, there are steps you can take to prevent excessive damage.

What Type of Damage Can Occur

Waterproofing Your Chimney - Chicago IL - Jiminy ChimneyFirst, you might be asking what type of damage can occur. The truth is, bricks are a porous material, and mortar is even more porous. So when it rains, moisture seeps into the pores and rests there. If it happens to freeze, that water expands and causes the pores to get even bigger. More water can then get in those pores, and the cycle continues. When this happens, your mortar weakens and that can be big trouble. As it crumbles and flakes, it can cause the bricks to loosen, which leads to structural damage. That can mean big repair bills.

Even if structural damage hasn’t occurred, a leaky chimney can cause other problems. It can cause weakened ceiling or wall structures around the fireplace, rusty fireplace tools, and rotting wood trim around the fireplace. In addition, it leads to a rusty damper system and damage to your central heating system. Some of these things aren’t too serious, but others, like weakened ceiling structure, can cause damage to the interior of your home. Another problem that excess rain in your chimney system can cause is a nasty odor when it mixes with the creosote in your chimney.

It’s important to take care of a leaky chimney as soon as you notice, but sometimes it can be hard to find the source of that leak. That’s where we come in. At Jiminy Chimney Masonry & Repair, we know just what to look for in regards to water leaks and damage and also just what to do about that damage.


One way to protect your chimney from damage is waterproofing. We use ChimneySaver Water Repellent to coat your chimney. This product stops precipitation from entering your bricks and mortar while allowing the water vapor that is already in your brick and mortar to escape. Although it may be tempting to try to do this job yourself, we have the proper equipment and training to do this job right.

If you’ve been worried about the effects precipitation has on your chimney, or if you’ve noticed signs of water damage and want to stop further damage after repairs have been done, give Jiminy Chimney Masonry and Repair a call or visit us online to set up a time for us to waterproof your chimney.