Premier Masonry Chimney Waterproofing Service

chimney waterproofing | masonry chimney waterproofing | custom chimney cap

We provide masonry chimney waterproofing services throughout metro Atlanta, including Tucker, DuluthBrookhaven, Dunwoody, Buford, Newnan, SuwaneeSandy SpringsRoswellLawrenceville, and surrounding areas.

Masonry chimneys are often neglected, but they require regular maintenance to prevent water damage. Moisture can cause brick and mortar to deteriorate, corrode metals, create efflorescence, and ultimately lead to structural failure. If you’re worried about masonry chimney crown damage, check out our masonry repair services.

After investing in a custom-fabricated masonry chimney cap, take the extra step to protect your chimney fully with our chimney waterproofing service. Adding a water-repellent coating is the perfect complement to a new chimney cap. While the high-quality chimney cap prevents water from entering the top of the chimney, waterproofing seals the entire exterior masonry structure. This comprehensive approach guards against moisture damage and extends the life of your chimney.

Masonry Chimney Waterproofing Cost

The cost of masonry chimney waterproofing is determined by the volume you’re spraying, the size of the chimney, and how easily accessible it is to get to the chimney on the roof. Our range can be anywhere from $350 to $1500.

We will assess the condition of the bricks and mortar after your chimney cap installation and recommend the ideal waterproofing solution for your home.

Signs of Chimney Water Damage:

  • Efflorescence (white staining)
  • Spalling (bricks separating and falling off)
  • Erosion (disintegrating bricks)


Waterproofing prevents damage but cannot fix existing issues like cracks or missing mortar. Repairs must be made before applying sealant.

chimney waterproofing | chimney cap installation Suwanee, GA | custom chimney cap

Additional Masonry Chimney Cap Services

Along with waterproofing, we also offer other masonry chimney maintenance and repair options to protect your chimney and improve its appearance fully. Our chimney pressure washing service removes unsightly dirt and deleterious growth for a like-new look. And our chimney crown repair and elastomeric coating service fills cracks, seals masonry, and waterproofs the structure.

Bundle these services with your custom chimney cap installation for complete chimney rejuvenation and security.

Free Chimney Cap & Waterproofing Quote

For over 30 years, National Chimney Service has provided custom chimney installations, cap replacements & repairs, and chimney waterproofing to homeowners across Georgia in Atlanta, Alpharetta, Roswell, Lawrenceville, Norcross, Newnan, Tucker, Flowery Branch, and surrounding areas. Call National Chimney Service today at 770-772-4038 to protect your chimney from water damage.


1) Text us at 770-772-4038

2) Include your name, Georgia town/county, and a ground level photo of your chimney (no need to get on the roof!)

3) We’ll reply shortly with your custom quote.