Keep Water Out Of Your Chimney With Professional Crown Repair & Waterproofing Services

Water problems and chimney leaks can be costly and destructive, but we’re here to make sure that your chimney stays dry for the long haul. That’s why we offer crown repair, rebuild, and waterproofing services. The crown, the cement that covers the top of your chimney, is your chimney’s first line of defense against water damage. Its function is to shed water away from the chimney structure and away from the flues, but if it’s damaged or poorly built, water can quickly make its way into the chimney itself.

The best thing to do when you notice crown damage is to have repairs made ASAP. Water doesn’t take long to work its way down into the chimney, and the costly repairs that come with an unaddressed chimney leak can quickly add up.

We offer several different options for crown repair:

  • Repairing with a brushable sealant — If you have some slight cracks and minimal damage here and there, we can apply CrownCoat, a brushable sealant, to the crown. This quick-drying sealant was designed specifically for the chimney crown, and will provide a waterproof membrane that protects the crown against future damage, prevents hairline cracks from growing, and prevents water from entering. This waterproofing product is permanently flexible (which means it’ll expand and shrink with your cement crown as the weather changes), environmentally friendly, and carries a 15-year warranty.
  • Repairing with a trowelable sealant — If your crown has moderate damage, we can make repairs, fill larger cracks and gaps, and provide protection against water using CrownSeal, a permanently flexible, trowelable sealant. This flexible, waterproof membrane dries to a natural, concrete mortar appearance, so your repairs look seamless and smooth. Additionally, it’s environmentally friendly, permanently flexible, and carries a 10-year warranty.
  • Pouring a new concrete crown — If your crown is severely damaged or missing altogether, we can pour a new crown slab onto your chimney. Our crown rebuilds include a built-in drip edge, which works to direct water off of the chimney entirely. We can also apply a waterproofing product to your new crown for added protection against future damage and leaks.
We have different types of crown repairs.
If you suspect you may have a chimney leak or a damaged crown, give Lou Curley’s Chimney Service a call at 610-626-2439 today. We’re experienced and certified chimney inspectors and professionals, and we’ll inspect your chimney for leaks, identify weaknesses, and make recommendations for long-lasting, effective repairs. No matter what your chimney needs to defend itself against water, we’ve got it. Call or fill out our online appointment request form and let Pennsylvania’s only CSIA-certified Master Chimney Sweep help you win the battle against chimney leaks.


To reduce the need for chimney leak repairs in the future, talk to us about the importance of masonry repairs and waterproofing today.