Black Mold Removal
What “black mold” really means, when to test it and how it is removed.
Learn more →Find out what is growing, where the moisture comes from and whether you actually need remediation. Honest inspections with written reports for homes and rentals across Bozeman & the Gallatin Valley, MT.
Get a Free QuoteA musty odor in the basement, a window that fogs every January, a stain on the drywall that keeps coming back, or a tenant who says the apartment makes them sneeze. These are the calls that lead to a mold inspection. The goal of an inspection is simple: find out whether mold is actually growing, where the moisture feeding it comes from, and whether removal is needed or a repair will do.
A good inspection starts with eyes and instruments, not a lab. We walk the home, check the usual trouble spots, and take moisture readings in walls, floors and framing. Thermal imaging shows cold, damp patches behind finished surfaces that a flashlight misses. Only after that do we decide whether sampling adds anything. Many homeowners learn their “mold problem” is really a condensation problem.
Bozeman is dry most of the year, which is exactly why mold surprises people here. Winter is the risk season. January lows average around 12°F, homes are sealed tight, and modeled indoor relative humidity runs high during the heating months. Warm indoor air meets cold exterior walls, window frames and attic sheathing, condenses, and feeds growth you never see until it smells.
Add 86 to 91 inches of snow a year and spring melt pushing water against foundations, plus a shallow water table in areas like Four Corners, and basements and crawl spaces become the second hotspot. Nearly 19 percent of Bozeman housing was built before 1970, and older homes in the Bon Ton, Cooper Park and South Tracy neighborhoods often have unfinished stone or block foundations that stay damp.
Four steps, same-day reply, written results.
We ask what you have seen, smelled and repaired, then check the whole home, not just the spot you called about. Bathrooms, window sills, the base of exterior walls, under sinks, behind the washer, the attic hatch and the crawl space access all get a look.
Pin and pinless moisture meters tell us whether drywall, trim and framing are wet right now. A thermal camera finds cold, damp areas behind surfaces so we sample the right place instead of guessing.
If growth is visible and over about 15 square feet, we will usually recommend going straight to remediation. If mold is suspected but hidden, or you need documentation, we collect air or surface samples and send them to an independent lab.
You get photos, moisture readings, lab results if taken, the likely moisture source, and a clear next step. If remediation is needed, the report becomes the written scope. If it is not, we tell you that too.
| Job | Typical range |
|---|---|
| Mold inspection + air/surface sampling | $300 – $700 |
| Post-remediation clearance test | $200 – $400 |
| Small contained area (if removal is needed) | $500 – $1,500 |
These are typical ranges for Bozeman-area homes; the number of samples and the size of the home move the price. See the full price table and calculator on our mold remediation cost guide, or request a free quote for a written scope on your home.

Because Montana has no mold license and no exposure standards, there is no number a lab can hand you that says a home is “safe” or “unsafe.” What a test can do is confirm a hidden source, identify what is growing on a surface, and document conditions before a sale, a lease dispute or an insurance claim.
We will tell you honestly when a test is a waste of money. If you can see it and you know where the water came from, the budget is better spent on removal and fixing the leak. Our technicians follow IICRC S520 guidelines, and we are happy to explain our protocols before you book.
Usually not when the mold is visible and the cause is obvious. MSU Extension's guidance is to call a professional once growth covers more than about 15 square feet, and at that size the practical next step is removal, not a lab report. Testing earns its cost when mold is suspected but hidden, when you need documentation for a landlord, buyer or insurer, or when you want clearance after work is done.
Air sampling pulls a measured volume of air through a cassette and compares the spore count and types indoors against an outdoor control. Surface sampling uses a swab or tape lift on a visible spot to identify what is growing. Air tests answer “is something hidden affecting this room,” while surface tests answer “what is this.” We recommend the one that fits your question, and often neither is needed.
Most Bozeman-area inspections with air or surface sampling fall between $300 and $700, depending on the size of the home and how many samples the lab runs. A visual inspection with moisture readings alone sits at the low end. Post-remediation clearance testing typically adds $200 to $400. Our cost guide lists every typical range we work from.
No. Montana has no state mold remediation or inspection license, and there are no federal, state or local mold exposure standards. That means anyone can advertise mold testing. Ask any company, including us, what training its technicians have, which lab analyzes the samples, and whether you will receive a written report with photos, moisture readings and a clear recommendation.
A clearance test is sampling done after remediation to confirm the work area is back to normal. It usually combines a visual check for remaining growth, moisture readings showing materials are dry, and air samples compared against outdoor levels. We offer optional third-party clearance so the company grading the work is not the company that did it. It is most useful for rentals, real estate sales and insurance claims.
What “black mold” really means, when to test it and how it is removed.
Learn more →Disclosure rules, documentation and testing for Bozeman landlords and tenants.
Learn more →Typical Bozeman-area price ranges, a square-foot calculator and the factors that move a quote up or down.
Learn more →This service is available across Bozeman & the Gallatin Valley, MT, including:
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