Repaired chimney crown with CrownCoat waterproof coating

Chimney Crown Waterproofing

Chimney Crown Repair & Waterproofing

Stop water from entering cracked chimney crowns with professional CrownCoat repair backed by a 15-year warranty.

Goodfellas inspects the crown first, then recommends coating, masonry repair, or rebuilding based on condition.

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CrownCoat by SaverSystems

15-year warranty

Waterproof membrane

Repair-first inspection

Problem

Cracked Chimney Crowns Let Water Into the Structure

A chimney crown is the concrete or masonry top surface that helps shed water away from the chimney structure. When the crown cracks, rainwater can enter the chimney instead of being directed away from it.

Moisture that gets inside the chimney structure can lead to further masonry deterioration. Small crown cracks can become more expensive chimney repairs if they are ignored through repeated rain exposure.

Cracked chimney crown allowing water intrusion risk — Crown cracks can let rainwater enter the chimney structure instead of shedding it away.

Damaged chimney crown with visible cracking — Small cracks are easier to address before water damage spreads into masonry joints.

Close-up of cracked masonry chimney crown — Visible cracking is a sign the crown should be inspected before the next rainy season.

Chimney crown before CrownCoat repair — Repair starts with determining whether the crown is still sound enough to be coated.

Wide cracking across a masonry chimney crown — Larger cracks, voids, or deteriorated areas may need filling or masonry repair before coating.

Why It Matters

Moisture Damage Gets Worse Over Time

Water can seep through crown cracks, reach masonry joints, and move deeper into the chimney structure. If moisture reaches internal metal reinforcement such as rebar, corrosion can become a bigger problem.

Rusting rebar can expand and put pressure on the surrounding masonry, which can worsen cracking and deterioration over time. Repairing crown cracks early helps reduce the chance that a smaller waterproofing issue becomes a larger masonry repair.

Key Risks

What Crown Cracks Can Lead To

Water entry through the top of the chimney.

Masonry joint deterioration around the crown.

Rust expansion from internal reinforcement.

More involved repairs if the crown keeps deteriorating.

Solution

CrownCoat Chimney Crown Repair

Goodfellas repairs eligible cracked crowns using CrownCoat Brushable Sealant from SaverSystems. CrownCoat is a premixed brush-on coating designed for masonry chimney crowns and creates a flexible waterproof membrane over the crown surface.

SaverSystems lists CrownCoat with a 15-year warranty when properly applied by a professional contractor to a residential chimney crown according to label instructions. Larger cracks or voids may need patching before two coats are applied.

Book Chimney Crown Inspection Read Crown Crack Guide

Finished CrownCoat chimney crown repair by Goodfellas Chimney — A smooth, sealed crown surface helps shed water away from the chimney structure.

Waterproofed chimney crown after professional repair — Professional application matters for product performance and warranty eligibility.

Masonry chimney crown after CrownCoat waterproofing — CrownCoat is used as a repair and sealing system, not a substitute for rebuilding a failed crown.

Process

Our Crown Repair Process

Inspect the chimney crown and surrounding masonry.

Clean and prepare the crown surface.

Fill larger cracks or voids when needed.

Apply CrownCoat according to manufacturer instructions.

Verify water-shedding protection and finish quality.

Benefits

Benefits of CrownCoat Repair

Helps stop water intrusion through crown cracks.

Creates a flexible waterproof membrane.

Includes a 15-year manufacturer warranty when professionally applied according to instructions.

Helps protect masonry from further deterioration.

Helps reduce the risk of rust-related damage from internal reinforcement.

Can be cleaner and more affordable than full crown replacement when the crown is repairable.

Repair vs. Rebuild

Does Every Chimney Crown Qualify for CrownCoat?

No. CrownCoat is ideal for many cracked crowns, but not every crown should be coated. If the crown is severely deteriorated, loose, crumbling, improperly built, or structurally failing, Goodfellas may recommend rebuilding or additional masonry repair instead of coating.

Book Chimney Crown Inspection Learn About Water Damage

FAQs

Chimney Crown Repair Questions

What is a chimney crown?+

A chimney crown is the concrete or masonry top surface that helps shed water away from the chimney structure. When it cracks, rainwater can enter the chimney instead of being directed away from it.

What is CrownCoat?+

CrownCoat is a premixed, brush-on product from SaverSystems that creates a permanently flexible waterproof membrane over masonry chimney crowns when applied according to product instructions.

Does CrownCoat rebuild a damaged chimney crown?+

No. CrownCoat is a repair and waterproofing coating for crowns that are still structurally sound enough to be coated. Severely deteriorated, loose, crumbling, or failing crowns may need rebuilding or additional masonry repair.

How long is the CrownCoat warranty?+

SaverSystems lists a 15-year warranty when CrownCoat is properly applied by a professional contractor to a residential chimney crown according to label instructions.

Have a Cracked Chimney Crown?

Goodfellas can inspect your chimney crown and determine whether CrownCoat repair is the right solution.

Book Chimney Crown Inspection Call Goodfellas

Call or Text: 619-387-6243