Fireplace Solutions
the Chimney Sweeper

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Give Your Chimney Liner A Second Chance With HeatShield® Cerfractory Sealant

Clay tile liners have been used in chimneys for decades and for good reason. They are durable and affordable, and can provide the homeowner with years of protection. But unfortunately, high heat, corrosive byproducts, and moisture can eventually lead clay tile liners to crack or mortar joints to recede, which can compromise the safety and efficiency of the chimney system. When this happens, if the structural integrity of the liner is uncompromised, HeatShield®, a cerfratory sealant, can work to restore the clay tile liner once more.

How HeatShield® Works

HeatShield® is a sealant that fills gaps and cracks in the clay tile liner and provides a smooth, airtight surface. There are two different typical applications for the product, and the one used will depend upon the condition and needs of your liner. HeatShield® can be used to upgrade an unlined flue system in some instances.

Application 1: The first application option is for minor crack repair. If your liner is structurally sound and just needs repair work in specific areas, we’ll start by cleaning and prepping the areas of concern. Next, we’ll apply the HeatShield® sealant, using a foam applicator to smooth over the product and press it into the cracks and gaps. The fireplace must not be used for 48 hours after application.

Application 2: The second application option is for more extensively damaged liners. If your clay tile liner needs repair and reinforcement from top to bottom, we’ll start by prepping and cleaning the entire flue. Next, we’ll apply the HeatShield® product, pulling a foam applicator up the length of the flue to smooth it over and seal everything. The fireplace must not be used for 48 hours after application.

Let Us Restore Your Liner Today!

If your flue is unlined or your clay tile liner is in need of repair, let the experts at Fireplace Solutions by the Chimney Sweeper help! We’re dedicated to keeping the homes of our neighbors throughout Los Angeles safer and more comfortable, year after year. To request an evaluation of your chimney flue or to learn more about HeatShield® repair, please call us at 800-760-6567 or click here!


The best solution for your relining requirements may be to have us install a stainless steel liner. Discuss the options with our crew of experts.

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