The Pursuit of the Definitive Truth
For decades, the chimney industry has operated on a flawed model: the same company that inspects your chimney is the one trying to sell you the repairs. We believed homeowners, insurers, and realtors deserved better. They deserved objective facts.
The Chimney Safety Firm was founded on a single, uncompromising principle: to provide the unbiased, definitive truth regarding structural chimney safety.
Our Origin & Evolution
A Legacy of Safety, A Future of Science
Our roots in the chimney industry run deep. Our authorized pre-audit partner, The Mad Hatter, has been a trusted name in chimney care since 1978. However, as technology advanced and the need for clinical, unbiased data became paramount, we recognized that true forensic diagnostics required a completely separate, dedicated focus.
In 2026, The Chimney Safety Firm was established as an independent entity based right here in O'Fallon, Missouri. By strictly separating the diagnostic audit from the repair process, we completely eliminated the industry's built-in conflict of interest.
When you hire us, you aren't hiring a contractor looking for a project. You are hiring forensic specialists looking for the truth.
The Forensic Mindset
We Don't Guess. We Measure.
Serving St. Louis and St. Charles County, our team approaches chimney and venting systems with the precision of structural engineers and forensic investigators.
We do not rely on standard visual inspections or flashlights. Our specialists are extensively trained in thermography, endoscopy, and hygroscopic analysis. Operating out of our state-of-the-art 2025 Mercedes Sprinter Mobile Labs, we capture, analyze, and document every millimeter of your chimney's anatomy.
Whether we are verifying NFPA-211 and IRC code compliance for a real estate transaction, or investigating moisture intrusion for an insurance claim, our goal is to deliver a sealed, data-driven engineering report that stands up to the highest scrutiny.
The Promise
Our Commitment to You
Zero Conflict of Interest
We will never attempt to sell you a repair. Our only service is the truth.
Clinical Accuracy
Our findings are backed by calibrated, dual-data analytics and laboratory-grade instrumentation.
Total Transparency
Step into our Mobile Lab and see exactly what we see on our client viewing monitors.
Meet Joe Mack
Lead Forensic Engineer
Behind every data point and engineering report is over two decades of relentless dedication to structural safety.
With 26 years of tenure in the chimney and venting industry, Joe Mack has seen firsthand the limitations of traditional chimney sweeping and visual inspections. After spending decades mastering the behavior of fire, masonry degradation, and venting physics, Joe recognized a critical gap in the industry: homeowners were making massive financial and safety decisions based on guesswork rather than data.
He founded The Chimney Safety Firm to change that.
Living by the standard of "Defying Fire", Joe pivoted his extensive field experience into forensic science. He pioneered the integration of thermography, internal 360-degree scanning, and hygroscopic analysis into residential chimney diagnostics. Today, Joe leads a team dedicated to one singular mission: delivering the definitive, unbiased truth about your chimney's structural integrity.
COPYRIGHT 2026 The Chimney Safety Firm
