Honest answer: yes, when it's done right.
Fogging has gotten a bad reputation because some companies do it wrong. Here's what makes the difference.
When fogging works
When the process is dialed in.
Antimicrobial dry fogging works when three things are true: (1) the chemistry is the right concentration for the area, (2) the dwell time is long enough for the fog to penetrate materials, (3) the area is properly sealed so the fog stays where it needs to.
Get those three right and the mold is dead at the cellular level — in wood, in insulation, in framing, wherever it grew. We've refined our ADFT process since 2013 specifically to nail these three variables every time.
The 1-year guarantee and 100% money-back guarantee exist because we're confident the process works. If we weren't, we wouldn't put both guarantees on the page.
When fogging fails
Three failure modes.
1. Wrong chemistry. Some companies use cheap quaternary ammonium compounds at low concentrations. Those don't penetrate materials and don't reliably kill mold at the cellular level.
2. Short dwell time. If the fog isn't allowed to dwell for 2–4 hours, it doesn't penetrate. Some operators rush the job and the result is incomplete.
3. Poor sealing. If the treated area isn't properly sealed, fog escapes and concentration drops. Either we seal it right, or we don't do the job.
What to ask a fogging company
Three questions.
If they can't answer these, walk away.
What chemistry are you using?
If they can't name the active ingredient, they don't know.
What's the dwell time?
Less than 2 hours = walk away.
What's the guarantee?
If they won't back the work in writing, it isn't worth what you're paying.
Want a fogging company that answers all three?
That's us.
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