What mold work costs, and which of it you should not be paying for at all.

Prices vary by region and by how much access the job needs. Where a job has a genuine do-it-yourself version we say so rather than quoting a number for it.

• Musty smell with nothing visible
• Crawlspace with bare soil
• Old flood line on basement or cellar walls
• Plaster bubbling near a chimney
• Growth around supply registers
• Damp along the bottom of a slab wall
• Carpet that stayed wet
• Discoloration on the ceiling under a bathroom
• Vapor barrier on the wrong side of the wall
• Attic sheathing dark on the north slope
• Wet insulation in a wall cavity
• HVAC running with growth in the ducts
• Growth after a roof leak was repaired
• Growth in a new-build closet on an exterior wall
• Slab moisture under new flooring
• Mold found during a home inspection
• Storm-driven water intrusion
• Low humidity and a persistent problem

Things you should not pay for

• Growth returning after cleaning
• Black staining behind furniture on an exterior wall
• Testing offered before any inspection
• No bathroom exhaust fan
• Insurance denying the claim
• Bathroom fan venting into the attic
• Humidity above sixty percent indoors
• Water heater or AC pan with standing water
• Contractor quoting whole-house remediation from a photo
• Crawlspace vents open year-round
• Growth in a rarely used bathroom
• Window condensation running onto the sill
• Air sampling recommended before repairs
• Sump or drainage discharging next to the foundation
• Tight envelope with no mechanical ventilation
• Condensation on new windows
• Bath fan running but not moving air
• Humidifier set high in winter
• Warranty period still open
• Landscaping grading water toward the house
• Sustained summer humidity

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Written by Jaylan Jones. I Like To Fix earns a referral fee when a call connects to a contractor. See our business-model disclosure.