Chimney Waterproofing

A leaky chimney rarely fixes itself — and water is the slow, expensive enemy of masonry.

Serving Southern Maryland Since 1996

CSIA Certified

Every Brand Serviced

What's Included

Find the Leak, Then Stop It

Water is the single most destructive thing that happens to a chimney, and it works in quietly — through a cracked crown, failed flashing, or porous brick — long before a stain shows up on your ceiling. We track down where it's getting in, fix the cause, and seal the masonry with a commercial-grade repellent that keeps rain out while letting the chimney breathe.

Find the source of the leak
Flashing repair and replacement
Crown repair and crown coats
Power-washing to clear grime, vegetation, and discoloration
Water-repellent application that still lets masonry breathe

Chimney Waterproofing by Chesapeake Chimney in Southern Maryland

Our Past Work

Chimney Waterproofing — Before & After

See the difference, side by side.

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Cricket Installation, before — Chesapeake Chimney — Cricket Installation

Cricket Installation, after — Chesapeake Chimney — Cricket Installation

More of Our Work

Cricket Installation — Chesapeake Chimney project in Southern Maryland — Cricket Installation

Flashing — Chesapeake Chimney project in Southern Maryland — Flashing

Common Questions

Questions, Answered

The questions we hear most.

What causes a chimney to leak?

Most leaks trace back to failed flashing, a cracked crown, a missing cap, or brick that's soaked up too much water over the years. We find which one it is before we seal anything.

Why not just use regular sealant?

Standard sealers trap moisture inside the masonry and make things worse. We use a breathable, commercial-grade repellent built for chimneys.

How long does chimney waterproofing last?

The commercial-grade repellent we use protects the masonry for years, not months. It soaks in and lets the brick breathe while keeping rain out — it isn't a surface coating that peels.

Will waterproofing fix a chimney that already leaks?

Waterproofing prevents leaks through porous brick, but if water is already getting in through a cracked crown or failed flashing, we fix that first. We find the actual source, repair it, then seal — sealant alone over a real leak won't hold.

Real Reviews

4.8

264 Google reviews

What Your Neighbors Say

What Southern Maryland says after we leave.

Brian inspected my chimney and woodstove and found several issues that need to be addressed. He took pictures and clearly explained the problems and possible solutions. He was very knowledgeable, communicated the...

— Kathy J.

Fantastic service by Cameron. My woodstove was up and running again in no time. He was polite, courteous, and so knowledgeable. Within 20 minutes of him leaving, my woodstove had roared back to life, my heat pump shut...

— M. Agundez

I had made an offer to purchase a new home which had both a wood burning stove and a standard chimney. I had Chesapeake Chimney inspect them for me. They were very professional and thorough, and they uncovered the fact...

— John O.

They were very thorough and professional. Clearly communicated and showed us many pictures of issues the inspection revealed. Identified and reviewed our options for remediation, identifying the tradeoffs. Very...

— Donna M.

We have used Chesapeake Chimney since 1996 for our wood burning fireplaces, but had never had them repair a gas stove insert. The technician, Joe, was amazing! He was very honest and helpful. He diagnosed the problem...

— Mary R.

Joseph was amazing! He serviced both of our gas fireplaces, and we can now FINALLY turn them on using the light switches. I'm so happy and just in time for the holidays. The new embers look amazing as well!

— Angelica D.

I just had Joseph and Elijah complete maintenance service and thermocouple repair on my 20 year old propane stove. They did an exceptional job of cleaning up the stove, repairing problems, and returning the stove to...

— Bill W.

Chesapeake Chimney installed a custom made, powder coated black chase cover and chimney cap on my house. It looks amazing, and is the perfect topper to our new roof and siding. Their prices are fair, and their customer...

— Ryan Coffin

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