Chimney Waterproofing

One of the best things you can do for the longevity of your chimney is to protect it from rain and water damage. Chimneys are famously susceptible to water damage because they are often quite literally in the eye of the storm and because mortar is water-soluble and weakens over time.

Second only to chimney sweeping, which is crucial for your safety, you will add the most years to your chimney by waterproofing it. Homeowners tend to put chimney waterproofing at the bottom of their To-Do list because it’s largely a preventative measure. But just because it’s preventative doesn’t make it unnecessary. This is one of the most important ways you can protect your home from the elements. Taking precautions to waterproof your home can save you significant amounts of money in the long run, and keep your appliance working safely for years to come.

Luckily, there are lots of surefire ways to keep water out of your chimney. Besides hiring a chimney professional to install a high-quality chimney cap or rainhood, you will want to consider having your chimney treated with a waterproofing product that blocks water out of your chimney while still allowing your chimney to “breathe,” (which means water vapors won’t get trapped inside your chimney when it’s in use). When waterproofing, Ace Chimney Sweeps use ChimneySaver’s Water Repellant, the top chimney brick sealer on the market. This product is proven to reduce water penetration into masonry by 99.9% (according to ASTM tests conducted at the University of Wyoming).

Why We Love ChimneySaver Waterproofing Products

Ace Chimney Sweeps, Inc. proudly uses the ChimneySaver line of water repellants, which are great for many reasons, including that they:

  • Come with a 10-year warranty
  • Are 100% vapor permeable
  • Are water-based and environmentally friendly
  • Provide protection from efflorescence and other stains
  • Dissuade the growth of mildew and fungus
  • Protect your chimney during the freeze and thaw cycles

In addition to waterproofing chimneys, Ace Chimney Sweeps, Inc. repairs chimneys that are already leaking and makes repairs to dampers and masonry. Schedule an appointment with one of our chimney technicians today and protect your home investment!


Damaged or missing flashing could be contributing to water leaks. We’ll be happy to investigate the source of your chimney leaks and make recommendations for getting it fixed.

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