HeatShield Chimney Repair & Relining | Chimney Crickets
HeatShield Chimney Repair for Flue Safety & Efficiency
If your chimney has cracks, gaps, or spalled flue tiles, it’s more than a structural issue—it’s a safety hazard. At Chimney Crickets, we proudly provide HeatShield chimney repair services across Saint Paul and over 70 nearby cities. This proven method restores the integrity of your chimney flue, helping your system vent gases safely and efficiently once again.
What Is HeatShield and Why It Matters
HeatShield is a specially engineered ceramic-refractory (cerfractory) sealant. It corrects cracks and gaps in your flue, allowing harmful gases to vent properly. Over time, damaged flue liners increase the risk of chimney fires or carbon monoxide leaks. Fortunately, HeatShield offers a cost-effective alternative to full flue replacement—without compromising safety.
Choosing the Right HeatShield Solution
Depending on your chimney’s condition, we offer three reliable HeatShield applications. During inspection, we assess the severity of the damage and choose the most effective system
Joint Repair System
This method targets minor defects in mortar joints. First, we create a foam applicator blade tailored to your flue. Then, we insert it below each void. As we pull the tool upward, we fill the gaps with HeatShield sealant, smoothing the joints in one continuous motion. This restores flue integrity while preventing further damage.
Long-Term Value and Fire Protection
HeatShield withstands temperatures over 2900°F, making it one of the most durable liner repair options available. Unlike many generic products, HeatShield meets or exceeds NFPA and IRC building codes for chimney safety. Moreover, it carries an “all-fuel” rating and is tested to resist corrosive gases, moisture, and intense heat.
Why Homeowners Trust HeatShield
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Seals cracks, gaps, and broken joints
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Strengthens flue integrity
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Avoids costly demolition and rebuild
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Certified to UL safety standards
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Extends the life of your chimney liner
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Covered by a limited lifetime warranty
We always verify our repairs with video scanning so you can feel confident in the results.
Serving Homeowners Across Minnesota
Whether you’re in Saint Paul, Rochester, Stillwater, Bloomington, or even across the border in Hudson, WI, our trained professionals deliver HeatShield repairs with unmatched precision.
