The most common question we get on the phone is "how much is this going to cost?" Here's the honest answer for Idaho, broken out by job size.
Inspection + testing (one-time)
A standard residential mold inspection runs $250-$450. The range depends on:
- Square footage of the home and how many areas need walking
- Whether air samples are included - lab fees add about $60-$100 per sample
- Whether thermal imaging is needed - it's free with our inspections, but some contractors charge separately
If you only want air-quality testing (not a full inspection), it's $200-$350 for a typical 2-sample-plus-control setup.
Bathroom-sized remediation
$1,500-$3,500. This covers a single bathroom with localized growth - usually behind tile or under a vanity from a slow plumbing leak. Includes:
- Containment of the affected area
- Removal of compromised drywall, vanity, and any insulation
- HEPA filtration during the work
- Antimicrobial treatment
- Drying
- Post-work clearance test
- Reconstruction (drywall, paint, baseboard)
Higher end of the range if there's tile or stone that needs careful protection or reset.
Single-room remediation
$3,500-$7,500. A bedroom, office, or single-floor area with growth on multiple surfaces. Adds time for content protection and more extensive HEPA work.
Full basement remediation
$7,500-$15,000. Finished or unfinished basements with widespread issues - common after a sump failure, foundation leak, or extended high-humidity conditions. The wide range reflects:
- Whether you have finished walls (drywall + insulation + baseboard removal multiplies labor)
- Whether the moisture source is fixable in scope or requires a separate contractor (grading, foundation work, sump replacement)
- Whether contents (furniture, stored items) need cleaning or disposal
Whole-house remediation
$15,000-$40,000+. Rare. Usually after a major flood, long-term roof failure, or HVAC contamination that spread throughout. Often involves insurance coordination.
What changes the price
In order of impact:
- How long the moisture has been present. A week-old leak is cheap. A year-old leak is expensive - the colony has spread, materials are compromised, and there may be hidden growth in wall cavities.
- Material accessibility. Open walls = fast. Finished walls with built-ins, tile, or custom millwork = slow.
- Contents protection or restoration. Empty room is easy. Bedroom full of furniture and clothing adds 30-50% to labor.
- Reconstruction scope. Are we leaving you with bare studs (cheap) or restoring to pre-loss condition (more expensive)?
- Insurance involvement. A clean insurance claim adds maybe 5-10% to total project time but doesn't usually change line-item pricing - we use the same Xactimate rates.
What insurance covers (in Idaho)
Most Idaho homeowners' policies cover sudden and accidental water damage and the mold remediation that follows. They generally do not cover:
- Slow leaks that went unnoticed for an extended period ("maintenance issues")
- Mold caused by humidity alone (no specific water event)
- Damage from flooding (separate flood policy required)
- Damage from sewer backup (often requires separate endorsement)
If the leak was sudden and you reported it within a reasonable time of discovery, insurance usually covers it.
What our quotes look like
Itemized in Xactimate format, line by line. If you're filing a claim, your adjuster reads the same format. No hidden change orders - if scope expands mid-job (e.g. we find more contamination behind a wall than estimated), we stop, document, and discuss before continuing.
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