Common challenges that homeowners face when owning a masonry chimney are mortar deterioration, brick spalling, cracks forming, and flue liner damage. In the past, installing a new stainless steel chimney liner has proven to be an effective way in restoring that old chimney. But now, there’s a new method that many choose as a more affordable alternative.

HeatShield relining is a method that uses a specially formulated Cerfractory sealant material that restores the integrity of your chimney’s flue…ensuring that it works effectively and efficiently. This helps your chimney properly vent out any hazardous smoke and gases from your home.

Interested in learning more or working with us? Call today or reach out to us online. We’re here to help!

Why Is HeatShield Recommended?

Why should you consider this service when relining your chimney? Here are just a few reasons:

  • Improved Safety: Lining the flue with a strong and durable barrier reduces your risk of experiencing fire hazards. It also protects the health and well-being of your household by preventing carbon monoxide and other dangerous gases from leaking into your home. 
  • Enhanced Efficiency: By helping increase the draft and airflow within your chimney, this in turn allows for more efficient combustion – meaning you’ll enjoy better heat output from your fireplace, all while using less fuel. 
  • Extended Chimney Lifespan: HeatShield resurfacing helps repair mortar deterioration, spalling, and cracks. This not only reinforces the chimney structure but helps prevent moisture intrusion that would only cause even more significant damage over time. When a chimney can better withstand the stress of regular use and exposure to weather, you are able to extend the lifespan of your chimney.
  • Cost Savings: By addressing the issues of cracks and deterioration early on, you can avoid costly repairs or even rebuilds. 
  • Environmentally-Friendliness: The materials used in HeatShield relining are created from recycled or naturally-occurring materials. 
  • Lifetime Warranty: HeatShield offers a lifetime warranty on lining repair services so you can rest assured that your chimney is safe to use for years to come. 
  • Affordable: Repairing a damaged chimney is often a great source of stress because of the unknown costs associated with this type of service. While installing a stainless steel liner or rebuilding the chimney can be costly, in comparison, the HeatShield choice is very economical.

It is no wonder that HeatShield chimney lining repair is becoming a popular choice among homeowners!

What Is the Process of HeatShield Repair & Resurfacing?

The process of HeatShield relining a chimney is rather unique. So we have broken it down into the following four steps:

✓ Chimney Inspection & Evaluation

First, we start off by providing a thorough inspection and evaluation of your chimney. Since there are three different application processes, we want to get a good idea of what we are working with in order to provide the best possible solution. 

Preparation & Cleaning of the Chimney

After the inspection is complete, the flue liner is cleaned and prepped. A foam head is then custom fit to your chimney to help aid as an application tool.

Application of HeatShield Product


a white brick chimney coming off a red roof with a blue sky in the background

Once the foam applicator tool is lowered into the flue and in place, the HeatShield sealant mixture is added and the applicator tool is used to push the sealant into the cracks and gaps. As the foam applicator tool is pulled up with the help of a winch, it smooths out the joint, making a seamless surface. Depending on the needs of your particular chimney, one of the following HeatShield applications will be chosen.

  • Joint Repair: When the joints between the clay tiles show signs of damage or deterioration, HeatShield’s joint repair system can quickly and effectively fill and smooth them out. 
  • Resurfacing: If the entire flue could use some repair, we would use the HeatShield resurfacing option instead. Similar process to the joint repair, but instead, a prep coat or tie coat is applied to the entire flue. When that is completely dry, the HeatShield flue sealant is added to your chimney and the applicator tool again helps smooth the surface from bottom to top. 
  • Relining: When damage is extensive, and extra strength, insulation, or support is needed in order to effectively repair your chimney, the HeatShield CeCure sleeve relining option may be recommended. Similar to the resurfacing option, this process also involves using the flue sealant. However, a stainless steel fabric sleeve is also added in between two layers of the HeatShield flue sealant.

Curing & Testing the Relined Chimney

After ample time has been given to allow the sealant to fully dry, we use a special camera to ensure application was successful, and that the repairs are left smooth and seamless.

What’s Your Next Step? Give Us a Call

Still not sure if HeatShield repair is right for you? The best way to determine what is best for your chimney is by first scheduling an inspection with the certified chimney technicians at Highpoint Chimney Services. They will provide you with a detailed evaluation and make recommendations for the most suitable and cost-effective solutions for your specific needs.

Don’t wait any longer, schedule an appointment with us today and take the first step towards a safer and more reliable chimney. Give us a call at 908-864-4114 or schedule an appointment online.