How We Help With Chimney Waterproofing

Brick and mortar are porous materials that absorb rainwater, and in Charlotte's climate—where heavy spring and summer storms are common—repeated wetting cycles accelerate chimney deterioration dramatically. Sealing your chimney's exterior masonry with a professional-grade vapor-permeable waterproofer is one of the most cost-effective preventive maintenance steps a homeowner can take. Unlike paint or generic sealers, chimney-specific waterproofing products allow water vapor from inside the masonry to escape while blocking liquid water from penetrating from the outside, preventing the trapped moisture damage that can cause spalling and mortar failure.

Hill Brothers Chimney Sweeps applies ChimneySaver Water Repellent—a siloxane-based penetrating waterproofer specifically formulated for chimney masonry—to the full exterior of the chimney from the crown to the roofline. The product soaks into the brick and mortar pores rather than forming a surface film, providing long-lasting protection without altering the appearance of the masonry. A single professional application typically provides up to ten years of water repellency when the underlying masonry is in sound condition.

Waterproofing is most effective when performed after completing any necessary tuckpointing or crown repairs, so that the treated surface is free of open cracks or gaps. Our technicians assess the masonry condition prior to application and will recommend necessary repairs to maximize the effectiveness and longevity of the waterproofing treatment.