Chimney Repair and Rebuilds in Northwest Wisconsin

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Chimneys endure constant exposure to Northwest Wisconsin’s harsh weather—freezing temperatures, rain, snow, and wind. Over time, this can lead to cracks, loose bricks, and structural deterioration that threaten both safety and appearance. Lucas Concrete provides expert chimney repair and rebuild services throughout Sawyer, Washburn, and parts of Bayfield County, restoring full function and ensuring your home remains protected from moisture, smoke damage, and potential collapse.

Understanding Chimney Damage

Chimneys are built to withstand the elements, but exposure to moisture and extreme temperature changes can still cause significant wear over time. Across Northwest Wisconsin, long, harsh winters bring repeated freeze-thaw cycles that expand tiny cracks and worsen existing damage. If left unaddressed, these small issues can develop into bigger concerns—such as leaning or unstable chimneys, loose materials, reduced efficiency, or blockages that affect proper ventilation.


Lucas Concrete carefully assesses the chimney’s overall condition—from crown to base—to determine whether targeted repairs or a complete rebuild are needed. Our goal is to restore both the structural integrity and original design of your chimney.

  • Brick chimney with a metal flue on a dark gray corrugated roof against a cloudy sky.

Common Chimney Repair Services

Chimney Crown Repair and Replacement

The chimney crown acts as the first line of defense against water. When cracked or deteriorated, moisture can seep down into the brickwork and mortar joints below. Lucas Concrete rebuilds or resurfaces damaged crowns using high-strength cement mixtures designed for long-term weather resistance. Each new crown is sloped properly to shed water and sealed for maximum durability.

Flue Repair and Liner Restoration

A damaged flue liner can compromise ventilation and increase fire hazards. Our team inspects clay and metal liners for cracks or blockages, repairing or replacing them as needed. Proper flue restoration ensures safe exhaust flow and protects the masonry from heat and corrosive gases.

Chimney Cap Installation

Installing a chimney cap is one of the simplest ways to prevent water, debris, and animals from entering your chimney. We fit custom metal or stainless-steel caps that seal the top while allowing proper airflow. This small addition significantly extends the life of your chimney system.

Brick and Mortar Repair

Cracked, spalling, or missing bricks can make a chimney unstable. Lucas Concrete removes damaged sections and replaces them with new masonry matched to your home’s original style. We also repoint or tuckpoint deteriorated mortar joints to strengthen the structure and improve its appearance.

  • Man on a ladder, inspecting a red brick chimney on a gray metal roof under a cloudy sky.

Full Chimney Rebuilds

When extensive damage or instability makes spot repairs impractical, a full or partial chimney rebuild may be necessary. Lucas Concrete handles complete tear-downs and reconstructions, rebuilding the chimney from the foundation up.


We rebuild with precision—using high-quality brick, concrete block, or stone to recreate the original design while improving structural strength. Each rebuild includes a properly designed crown, new liner installation, and sealed joints to ensure long-term protection. Our rebuilds not only restore function but also enhance the exterior look of your property.

  • Dark roof with chimney and skylight against a blue sky.

Protecting Chimneys in Northwest Wisconsin’s Climate

Across Northwest Wisconsin, freeze-thaw cycles and heavy precipitation make chimney maintenance essential. Annual inspections and timely repairs can prevent leaks, water damage, and structural failure. Lucas Concreteprovides solutions tailored to local weather conditions—such as waterproof coatings, properly angled crowns, and high-quality mortar designed for freeze resistance.

By addressing these environmental factors directly, our work not only fixes existing issues but also helps prevent future deterioration, keeping your chimney secure through Wisconsin’s toughest seasons.

Schedule Chimney Service with Lucas Concrete

If you’ve noticed crumbling mortar, missing bricks, or signs of moisture near your fireplace, it’s time to have your chimney inspected. Lucas Concrete offers reliable chimney repair and rebuild services throughout Northwest Wisconsin, including Sawyer, Washburn, and parts of Bayfield County. Our expert team restores functionality, safety, and visual appeal—one brick at a time.


Contact Lucas Concrete today to schedule a professional chimney evaluation and ensure your structure’s strength and longevity.

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