Damaged Clay Chimney Liner? Ask About Restoring It With HeatShield®

Having an unlined chimney or a chimney with a damaged liner can make the enjoyment of your heating appliance and chimney system virtually impossible. Not only will an unlined or damaged chimney be incredibly inefficient, it will also be incredibly unsafe.

When cracks and gaps develop within the liner (or when the chimney is lacking a liner altogether), high heat and corrosive byproducts can cause serious harm to the chimney’s masonry and can easily ignite nearby combustibles. Not only that, but these gaps and cracks can allow dangerous gases and smoke to leak into your home, staining walls and furniture and infiltrating your family’s air supply.

How Do I Know if My Chimney Needs To Be Relined?

It’s pretty difficult to assess the condition of your chimney liner with the naked eye. That’s why the professionals at Pristine Sweeps use closed-circuit cameras to get a look at the interior of the chimney. If you aren’t sure what condition your liner is in – or if you even have one – it’s time to set up an inspection with one of our expert technicians.

Will I Have To Have An Entirely New Liner Put In?

If you have a clay liner that has seen better days, it’s possible we may not have to replace it with an entirely new liner. Thanks to the revolutionary HeatShield® resurfacing system, in many cases, we are able to repair and restore clay and tile liners quickly and effectively.

What Is HeatShield® & How Does It Work?

The HeatShield® product itself is a “cerfractory” (ceramic refractory) sealant that effectively fills gaps and cracks and creates a smooth, even, and air-tight surface. The product has been extensively tested and is known to resist moisture and corrosive byproduct damage, and can withstand temperatures exceeding 2900 degrees Fahrenheit.

Depending on the extent of your damage, we may opt to use the joint repair system, the resurfacing system, or the HeatShield® CeCure Sleeve relining system.

  • HeatShield® Joint Repair: If your joints are where the majority of your damage is, we can simply apply this HeatShield® product and create smooth, strong joints with a custom-fitted applicator.
  • HeatShield® Resurfacing: If your entire tile liner could use some TLC, we may opt to resurface your existing liner. During this process, we’ll clean and prime the flue, and use a custom-fitted applicator to spread the HeatShield® sealant material along the length of the liner.
  • HeatShield® Relining: If your clay or tile flue is beyond help, or if you lack a flue liner altogether, we will need to reline your flue. The HeatShield® CeCure Sleeve relining system involves a custom-designed ceramic and stainless steel fabric sleeve, which is reinforced by two surrounding layers of HeatShield® cerfractory flue sealant.

Whether we’re fixing joints or relining your entire system, we’ll use a closed-circuit video camera to review our work and ensure a smooth, smoke-tight flue.

Heatshield joint repair graphic missing mortar and gaps can be repaired.

HeatShield® Joint Repair

Heatshield resurfacing application graphic. Repairs gaps cracks and spalling.

HeatShield® Resurfacing

Heatshield liner graphic-Heatshield is a cerfractory refractory sealant.

HeatShield® Relining

Call Pristine Sweeps Today

Not everyone is equipped to install these amazing HeatShield® systems. The makers of HeatShield® only choose and train industry experts with top-notch experience and up-to-date industry certifications. Where can you find these trained and certified HeatShield® installers in the Seattle area? Here at Pristine Sweeps – we are a certified HeatShield® installer and can enhance and restore your home and hearth with this amazing product.

The best news? When professionally installed, HeatShield® systems come with a 20-year material warranty! For more information or to schedule your appointment, give us a call at (206) 574-8414 or book online now.


M-Flex lining products may be the answer to your chimney relining needs. Get more information from one of our experienced technicians.