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Guardian Chimney Liner ®

Chimney filled with Guardian material,
rubber form, and vibrator.

The revolutionary Guardian Chimney Liner® is the safest and most effective system for relining masonry chimneys. Using the cast-in-place technique, the Guardian chimney liner is not just a chimney liner, but also a complete restoration process of the chimney structure.

The development of the Guardian Chimney Liner® is the culmination of 45 years of field experience by the Firesafe Corporation: a company that has installed thousands of cast-in-place chimney liners, in combination with a team of ceramic engineers. The practical applications from thousands of installations united with scientific research and development led to the production of the Guardian Chimney Liner®.

Aerial view of new Guardian
flue and crown.

The Guardian Chimney Liner® is tested and listed to UL 1777 by accredited laboratory, Guardian Fire Testing Laboratory, Inc. Additionally, the Guardian Chimney Liner® is the only chimney liner in the United States to be certified by the International Code Council Evaluation Services (Report # ESR-2672) as compliant with the 2006 International Building Code, 2006 International ResidentialCode, and the 2006 International Mechanical Code.

The proprietary formula of the Guardian Chimney Liner® material provides an insulating, refractory compound that is the only chimney liner approved for zero-clearance specifications with 3/4″ liner thickness. This break-through approval is especially critical when the available flue area will only allow a 3/4″ liner. Consequently, when the area within the chimney is limited, the Guardian 3/4″ minimum liner thickness allows you to line the chimney when our competitors cannot legally do so, since their minimum poured liner thickness is 1″ to 1 ½”. Furthermore, the Guardian 3/4″ standard ensures all installations will meet zero-clearance specifications. The Guardian Chimney Liner® is backed by a factory, limited lifetime guarantee – call for details.

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Close-up of new Guardian flue..

Why choose the Guardian Chimney Liner®?

  • Maximum protection for chimney.
  • Ideal for historical chimney restorations.
  • Easily installed through severe off-sets.
  • Maximum protection in smoke chamber.
  • Increased performance of fireplace or appliance.
  • Suitable for all fuels.
  • Significantly increases structural integrity.
  • National recognition.

Scaffolding set-up for
Guardian installation.

Scaffolding set-up for
Guardian installation.