Waterproofing and Caulking Supplies

Need reliable chimney calk? Our premium chimney calking solutions seal gaps between your chimney and siding, flashing, or masonry. Choose from expandable foam calk, fire calk, or exterior sealants designed for harsh weather. Perfect for preventing leaks, drafts, and moisture damage. Not sure what to use to calk a chimney? We’ve got you covered—shop now for top-rated products.

Waterproofing and Caulking Supplies

Protect your home with high-performance chimney calking solutions built for durability and peace of mind. Whether you're sealing flashing around the chimney, filling gaps between chimney and siding, or insulating with expandable foam calk, we offer products that withstand extreme temperatures and weather.

Our selection includes fire calk for chimneys, foam sealants for tough-to-reach spots, and weatherproof exterior caulks to prevent water intrusion and air leaks. Homeowners and contractors trust our products for repairs, retrofits, and new installations alike.

Don't let small gaps cause big problems—get the right calk for flashing around chimney or find out what to use to calk your chimney with expert-recommended options. Ideal for stone, brick, metal flashing, or siding transitions, our chimney caulks help maintain energy efficiency and structural integrity.

FAQ

Q: What do I use to calk a chimney with?
A: Use high-temperature fire calk or exterior expandable foam designed for chimneys. For flashing, a waterproof silicone or polyurethane-based chimney calking is best.

Q: Can I use foam to calk between chimney and house siding?
A: Yes, expandable foam calk is perfect for sealing irregular gaps between the chimney and house siding, providing insulation and preventing water leaks.

Q: What is the best calk for flashing around a chimney?
A: A durable, weather-resistant polyurethane or silicone-based calk is ideal for chimney flashing, as it adheres well to metal and masonry surfaces.