Heatshield
Our masons are proud to be factory-trained HeatShield® Installers.
At Midwest Chimney Repair, we’re proud to be factory-trained HeatShield® Installers serving Minnesota homeowners with trusted chimney solutions. HeatShield is a proven method for repairing flue liners, protecting homes from fire hazards, toxic gas leaks, and structural deterioration. Since 1999, our team has used this advanced technology to restore chimneys with precision and long-lasting results. 🔥🏠
With HeatShield, you can fix damaged liners without removing the chimney. It’s a smart, cost-effective way to seal cracks, fill gaps, and bring your chimney up to modern safety standards.
🔧 Which HeatShield Option Is Right for You?
As there are various levels of disrepair of a flue, there are also various options for restoring it, ranging from filling in gaps in the mortar, to resurfacing with a ceramic flue sealant, to a complete relining with either a stainless-steel liner or a ceramic-steel sleeve sandwiched between two coats of flue sealant.
🧱 Mortar Joint Repair
When your flue has small gaps between the tiles, HeatShield’s Cerfractory® Flue Sealant fills those spaces efficiently. Our installers use a custom-made foam blade that fits your chimney’s shape and applies the material smoothly as it moves up the flue.
➡️ Ideal for: Minor wear and tear
✅ Benefit: Affordable, effective fix for early-stage damage
🎯 Full Flue Resurfacing
Cracks or surface erosion don’t always require a full reline. Instead, we can apply a coat of HeatShield sealant over the entire interior flue surface. This process—called slip casting—uses a winch-powered foam plug to create a seamless, durable barrier inside your chimney.
➡️ Ideal for: Worn flues with minor cracking
✅ Benefit: Strong protective layer and renewed airflow efficiency
🧯 CeCure® Sleeve Relining
In chimneys with serious damage—or those without an existing liner—we install a CeCure® Sleeve, which is a stainless-steel-reinforced ceramic blanket. This sleeve is layered between two coats of HeatShield sealant, forming a high-performance chimney lining that costs less than traditional stainless steel liners.
➡️ Ideal for: Major damage or unlined chimneys
✅ Benefit: Full restoration and long-term safety
🧠 Why Choose HeatShield Over Other Options?
Many older homes in Minnesota still have unlined or cracked flues. These chimneys may allow dangerous gases into your home or weaken nearby masonry. HeatShield fixes these issues without removing your entire chimney system.
In fact, the National Safety Board found that unlined chimneys can catch nearby materials on fire within just 3.5 hours of use. That’s why installing a flue liner is not only recommended—it’s essential.
💬 Common Questions About HeatShield
❓ Is HeatShield safe?
Absolutely. HeatShield has been independently tested and is UL-listed. It offers long-term performance and safety when installed by certified professionals like us.
❓ What’s the difference between resurfacing and a full relining?
Resurfacing reinforces your existing liner. Full relining replaces it entirely using the CeCure® Sleeve method for more severe damage.
❓ How much does it cost?
Most HeatShield relining projects cost between $3,500–$5,500, depending on your chimney’s size, structure, and needs.
🔍 See If HeatShield Is Right for Your Chimney
🏆 With more than 25 years of experience and factory-trained installers, Midwest Chimney Repair is Minnesota’s trusted HeatShield provider. We invite you to visit our certifications and training page and explore our online shop for additional tools, chimney caps, and services.
📞 Ready to schedule your chimney inspection or HeatShield consultation? Call us today at (612) 655-8181 or contact us online. Let’s protect your home with the strength and safety of HeatShield!
