Crown Specialists

Chimney Crown Repair in Allen, TX

The chimney crown is the concrete slab that caps the top of your chimney, sealing the gap between the flue liner and the outer brick walls. When it cracks, water pours directly into the chimney structure, causing damage that spreads downward through the entire masonry. We repair and rebuild chimney crowns across Allen and Collin County. Call (972) 521-7225.

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verified Licensed Masons

water_drop Water Protection

star 4.9 Stars

schedule Same-Week Service

photo_camera Photo Documentation

Crown Repair — Starting at $300

Why It Matters

Why Crown Damage Is So Destructive

The crown takes the worst beating of any chimney component. It sits at the very top, fully exposed to Texas sun, rain, hail, and freeze-thaw cycles. Over 10–15 years, even a well-built crown develops cracks. Those cracks let water into the chimney structure — and water is what destroys chimneys.

Water enters through crown cracks, soaks into the brick and mortar below, freezes in winter, expands, and opens the cracks further. Each year the damage compounds. What starts as a hairline crack becomes a chunk missing. What started as a $300 seal job becomes a $900 full crown rebuild — or worse, a chimney rebuild if the water damage has spread to the bricks below.

We see this pattern constantly in Allen homes built in the 1990s and 2000s. Many builders used a basic mortar wash instead of a proper concrete crown. Those mortar washes crack within 5–10 years. If your home is 15+ years old and the crown has never been inspected, there’s a very high chance it needs attention.

A gloved hand uses a tool to inspect a severely cracked and crumbling concrete chimney crown on a brick chimney.

Repair Options

Crown Repair vs. Crown Rebuild

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Crown Seal (CrownCoat)

For crowns with minor cracks but still structurally sound. We apply CrownCoat — a flexible, waterproof sealant that bridges cracks up to 1/2 inch and prevents new ones from forming. Lasts 15+ years. Cost: $300–$500. Same-day application.

construction

Full Crown Rebuild

For crowns with major damage — large chunks missing, deep cracks, or complete deterioration. We remove the old crown down to the brick, form and pour a new concrete crown with proper overhang and drip edge. Cost: $500–$1,200. Takes 1 day plus cure time.

A technician applies sealant to a cracked brick chimney crown on a residential roof during a repair process.

What We Do

Our Crown Repair Process

Every crown repair starts with a thorough inspection and ends with documentation:

check_circle Roof-level crown inspection with photos

check_circle Crack assessment and repair recommendation

check_circle Surface prep — cleaning and debris removal

check_circle CrownCoat application or full pour

check_circle Proper overhang and drip edge (rebuilds)

check_circle Cap check during service

check_circle Before & after photo documentation

check_circle Waterproofing recommendation

Signs of Damage

How to Tell Your Crown Needs Repair

You can’t see the crown from the ground on most chimneys. But these clues suggest crown damage:

Concrete chunks on the ground around the chimney base
Water stains on the ceiling or walls near the chimney
White staining (efflorescence) on upper chimney bricks
Water dripping into the firebox during rain
Chimney is 15+ years old and crown has never been inspected

We check the crown during every chimney inspection and chimney sweep. If the crown needs attention, you’ll see it in the photos we take.

A severely cracked and crumbling concrete chimney crown with water stains on the brickwork below.

Often Paired With Crown Repair

FAQs

Crown Repair Questions

How much does chimney crown repair cost?

CrownCoat sealant application: $300–$500. Full crown rebuild (remove and pour new): $500–$1,200. Price depends on chimney size, crown condition, and accessibility. We provide exact quotes after roof-level inspection with photos.

How long does a repaired crown last?

CrownCoat sealant lasts 15+ years and is reapplicable. A properly poured concrete crown lasts 20–30 years. We recommend pairing crown work with waterproofing the chimney bricks for maximum protection.

Can I seal the crown myself with caulk?

Standard caulk doesn’t work on chimney crowns. It’s not flexible enough to handle thermal expansion and it breaks down in UV exposure within a year. CrownCoat is a specialized elastomeric sealant designed specifically for chimney crowns — it stays flexible through heat and cold cycles and blocks UV degradation.

Does the chimney cap protect the crown?

A cap protects the flue opening but doesn’t cover the crown itself. The crown is the flat surface surrounding the flue opening — it’s still fully exposed to rain, sun, and ice even with a cap. Both a cap and a healthy crown are needed for proper water management.

Fix It Now

Schedule Crown Repair

Stop water damage before it spreads. Free roof-level inspection with photos and a written quote.

Mon–Sun: 7am–8pm

Request Crown Repair

We respond within 2 hours during business hours.