Our Chimney Crown Rebuild Includes
Benefits of Professional Chimney Crown Rebuild
How We Deliver Excellence
Every chimney crown rebuild project follows our proven 6-step process for consistent, professional results.
Remove existing failed crown completely
Clean and prepare chimney top surface
Install bond-break membrane around flue
Form and pour new crown with proper crown mix
Create proper slope, overhang, and drip edge
Apply flexible crown coat after curing
Chimney Crown Rebuild — Built Right to Last Decades
When a chimney crown has failed beyond the point of repair — with large cracks, missing sections, or complete structural failure — rebuilding is the only proper solution. At Chimney Repair Group, we rebuild crowns using the correct materials and techniques that most original builders got wrong, creating a crown that will protect your chimney for 25 years or more.
Why Most Crowns Fail Prematurely
The majority of chimney crowns we see were built improperly. Common mistakes include: using mortar instead of proper crown mix (mortar cracks quickly), making the crown too thin (less than 2 inches), building flat instead of sloped (water pools on surface), no expansion joints (thermal cycling causes cracking), no overhang or drip edge (water runs down chimney sides), and no waterproofing coating.
How We Build a Crown That Lasts
Our crown rebuilds follow every best practice: Portland cement-based crown mix with proper aggregate for strength and flexibility, minimum 3-inch thickness at the thinnest point, positive slope from the flue outward on all sides, 2-inch overhang with a shaped drip edge that directs water away from masonry, expansion joints (bond-break membrane) where the crown meets the flue liner, and flexible crown coat applied after curing for waterproof protection.
Crown Coat Protection
After the rebuilt crown has fully cured, we apply a flexible, waterproof crown coat that bridges hairline cracks and provides an additional moisture barrier. This elastomeric coating expands and contracts with temperature changes, maintaining a waterproof seal year-round. Crown coat extends the life of even a well-built crown significantly.
Get Started Today
Contact us for a free estimate on chimney crown rebuild services.
Or call us directly:
(888) 882-2070Frequently Asked Questions
How long does a crown rebuild take?
Crown removal and rebuilding is typically completed in one day. The new crown needs 24-48 hours to cure before crown coat can be applied. Total process takes 2-3 days with curing time.
How much does a crown rebuild cost?
Cost depends on chimney size and rooftop access. The work includes removal of the old crown, forming and pouring the new crown, and crown coat application — all covered in a free written estimate.
How long will the new crown last?
A properly built crown with crown coat protection typically lasts 25-30+ years. This far exceeds the 5-10 year lifespan of most improperly built original crowns.
Can crown rebuilding be done in winter?
Crown mix needs temperatures above 40°F for 48 hours after pouring to cure properly. We schedule crown rebuilds during appropriate weather conditions. Emergency temporary protection can be applied in any weather.
Chimney Crown Rebuild Service Areas
We provide chimney crown rebuild services throughout Florida