Thermocrete

Curious how ceramic relining works? Watch this short video from Approved Industries to see how Thermocrete transforms flues into safe, high performing fireplaces in real time.

Thermocrete Flue Restoration

Invest in a lifetime of safer fires. Upgrade your deteriorating flue with Thermocrete ceramic lining, get your free consultation now!

Thermocrete is and industry leading ceramic chimney lining system designed to restore old, cracked, or deteriorating flues without the need for invasive masonry tear out. Applied as a smooth liquid spray, Thermocrete coats the inside of your chimney, sealing cracks, filling gaps, and creating a continuous, jointless barrier that contains heat and dangerous combustion gases.

Unlike traditional metal liners, Thermocrete bonds directly to existing brick, clay tile, or stone. This application process preserves your chimney's original inner dimension and air flow draft making it an ideal repair solution for historic fireplaces, wood stoves, and masonry chimneys' alike!

By reinforcing your chimney from the inside out, Thermocrete restores total structure of integrity while ensuring full compliance with modern fire safety standards, giving you complete peace of mind every time you light a fire.

Why Choose Thermocrete?

• Maximum Fire Safety: Creates an airtight, fireproof sealant that keeps dangerous heat, sparks, and carbon monoxide safely in the flue.

• Preserves Flue Capacity: Sprays on smoothly without drastically restricting internal flue size, maintaining optimal draft performance.

• Structural Reinforcement: Fills cracks, missing mortar joints, and eroded tiles to strengthen your entire chimney structure.



• Long Lasting Durability: Highly resistant to heat, acidic flue condensation, and thermal shock over decades of use.

• Minimal Disruption: Installed directly through the existing flue without tearing down brickwork or causing mess in your home.

Signs Your Chimney Needs Evaluation

• Small pieces of reddish clay tile or mortar falling onto the hearth floor.

• Visible cracks or gaps inside the chimney flue during a routine sweep.

• Smoke or foul odors leaking into living spaces when fire is lit.

• Moisture, damp spots, or white powdery deposits (efflorescence) on exterior chimney brickwork.

Limited Lifetime Warranty Disclaimer

Thermocrete ceramic chimney lining is backed by a manufacturer's Limited Lifetime Warranty. Guaranteeing the material to be free from defects and impervious to acid corrosion, heat damage, and material failure under normal residential use. This warranty is valid only when Thermocrete is installed by a factory authorized and certified technician in accordance with manufacturer specifications. To maintain warranty coverage, the chimney system must receive documented annual inspections and routine maintenance by a qualified chimney professional. Warranty does not cover damage resulting from structural settlement, chimney fires, natural disasters, improper appliance fuel use, or unapproved alterations. This Limited Lifetime Warranty is fully transferable to subsequent homeowners. Complete warranty terms, conditions, and claim procedures are available upon request.

Upfront Costs, Professional Service, and Zero Hidden Fees

Please note that a 2.99% card processing fee applies to all credit & debit card transactions. Cash and check options are available to avoid this fee.

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