What is a Chimney Crown?

A chimney crown is the concrete or mortar top surface of a masonry chimney, designed to protect the chimney’s structure by shedding water away from the flue and brickwork. Over time, cracks can develop in the crown due to weather exposure, freeze-thaw cycles, and natural aging. If left untreated, these cracks can lead to water damage, structural instability, and costly repairs.

At Nexus Chimney Services, we specialize in repairing chimney crown cracks and restoring damaged crowns using industry-leading products like CrownCoat and CrownSaver.

Common Causes of Chimney Crown Cracks

1. Weather Exposure

  • Constant exposure to rain, snow, and UV rays causes the crown to deteriorate over time.

2. Freeze-Thaw Cycles

  • Water seeps into small cracks and expands as it freezes, worsening the damage.

3. Poor Construction

  • Crowns built with improper materials or inadequate slope fail to shed water effectively, leading to cracks and water pooling.

4. Age-Related Wear

  • Over time, even well-built crowns can develop cracks due to natural aging and settling.

Why Repair Chimney Crown Cracks?

1. Prevent Water Damage

Cracks allow water to penetrate the chimney, leading to:

  • Damaged flue liners.
  • Eroded mortar joints.
  • Interior leaks and water stains.

2. Maintain Structural Integrity

A compromised crown weakens the chimney’s overall structure, increasing the risk of loose bricks and costly rebuilds.

3. Save on Future Repairs

Timely repairs prevent minor cracks from escalating into severe damage, saving you money in the long run.

Chimney Crown Repair Solutions

1. CrownCoat: For Small Cracks and Minor Damage

  • What It Is: A flexible, waterproof sealant designed to fill cracks and seal the crown.
  • When to Use:
    • For minor cracks and small areas of damage.
    • As a preventative measure to extend the crown’s lifespan.
  • Benefits:
    • Quick and cost-effective solution.
    • Prevents water from penetrating existing cracks.

2. CrownSaver: For Severe Damage and Rebuilds

  • What It Is: A durable, weather-resistant material used to repair or rebuild severely damaged crowns.
  • When to Use:
    • For large cracks, missing sections, or exposed bricks.
    • When the crown requires significant structural reinforcement.
  • Repair Options:
    • Overlay Method: A new CrownSaver layer is applied over the existing crown.
    • Complete Rebuild: The old crown is demolished, and a new one is constructed.
  • Benefits:
    • Restores the crown’s structural integrity.
    • Provides long-lasting protection against weather damage.

The Repair Process

1. Inspection and Assessment

Our certified technicians evaluate the extent of the crown’s damage and recommend the appropriate repair solution (CrownCoat or CrownSaver).

2. Cleaning and Preparation

  • The crown surface is cleaned to remove debris, moss, and loose material.
  • Cracks and damaged areas are prepared for repair.

3. Application of Repair Material

  • For CrownCoat: The sealant is applied to fill and cover cracks, creating a flexible, watertight barrier.
  • For CrownSaver: The material is applied to rebuild missing sections or overlay the existing crown, ensuring a smooth, sloped surface for water runoff.

4. Final Inspection

  • The repaired crown is inspected for durability and proper water-shedding functionality.

Why Invest in Chimney Crown Repair?

1. Protect Against Water Damage

Sealing or rebuilding the crown prevents water infiltration, reducing the risk of costly interior and structural damage.

2. Extend Chimney Lifespan

Properly maintained crowns enhance the durability and safety of the entire chimney.

3. Increase Home Value

A well-maintained chimney improves your home’s curb appeal and value.

Why Choose Nexus Chimney Services?

Since 2016, Nexus Chimney Services has been the trusted provider of chimney repair and maintenance services in Raleigh, Durham, Chapel Hill, Cary, Apex, Holly Springs, and surrounding areas.

What Sets Us Apart?

  • Certified Technicians: Skilled in assessing and repairing chimney crowns using top-tier products like CrownCoat and CrownSaver.
  • High-Quality Materials: We use only industry-approved products for long-lasting results.
  • Comprehensive Service: From minor crack repairs to complete crown rebuilds, we handle it all.
  • Customer Satisfaction: Your safety and satisfaction are our top priorities.

Schedule Your Chimney Crown Repair Today

Don’t let cracked chimney crowns lead to costly damage. Contact Nexus Chimney Services for professional chimney crown repair using CrownCoat or CrownSaver. Protect your chimney and home with our expert solutions. Call our office or fill out our online form to request an appointment today to schedule your masonry chimney inspection.