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Rust, smells and damp in a chimney that never sees frost?
- A sour, smoky smell that peaks in the humid months
- Rust on the damper, firebox or chase cover years before it seems due
- Everything metal on the roof aging faster than the roof itself
Why it happens in Mississippi: Mississippi's sixty-plus inches of rain and Gulf humidity mean flues that never dry and metal that corrodes early. The chimney problems are real, but they are water problems, and the freeze-centric advice that dominates the internet mostly does not apply.
What fixes it, and what it costs
Work with the climate instead of against it: sweep so there is nothing in the flue to sour, stainless for every replaceable metal part because galvanised loses this fight, a top-sealing damper to keep the humid column out of the house, and crown-and-flashing checks on the storm calendar rather than the frost one.
- Standard single flue, wood-burning
- $170–$320
- Gas appliance venting check
- $120–$220
