Mold Inspection Costs

On February 25, 2026 By newsroom Topic: Home Services

Average Costs

National Average: $657
Typical Range: $302–$1,045
High-End Costs: Up to $4,100 (e.g., New York City, extensive inspections).

Cost by Mold Type

| Mold Type | Cost | |------------------------------|-----------------------| | Alternaria | $450–$550 | | Aureobasidium | $450–$550 | | Chaetomium | $450–$550 | | Cladosporium | $450–$550 | | Aspergillus | $450–$550+ | | Penicillium | $500–$600 | | Trichoderma | $500–$600 | | Ulocladium | $500–$600 | | Serpula Lacrymans | $500–$600 | | Fusarium | $600–$800 | | Stachybotrys Chartarum (Black Mold) | $600–$800+ |

Cost by Location

| City | Cost | |-------------------|-----------------------| | Los Angeles | $160–$2,663 | | Portland, OR | $160–$1,400 | | New York City | $200–$4,100 | | San Antonio, TX | $200–$625 | | Dallas | $216–$1,100 |

Inspection Types and Costs

| Inspection Type | Cost Range | |-------------------------|------------------------| | Swab Test | $200–$300 | | Air Test | $250–$350 ($700 for extensive testing). | | HVAC Test | $50–$75 | | Lab Stain Test | $150 (additional cost). | | Mold Culture Test | $50 (additional cost). |

Factors Impacting Cost

Home Size: Larger homes cost more to inspect due to greater area coverage.
Accessibility: Hard-to-reach spots (e.g., wall cavities, air ducts) increase costs.
Number of Samples: More samples = higher cost, especially if mold is widespread.
Mold Type: Toxic molds like black mold require specialized handling, raising costs.
Testing Extent: Visual-only inspections are cheaper, but thorough testing increases expenses.

When to Get an Inspection

After Water Damage or Flooding: Mold thrives in moist areas after leaks or floods.
Buying or Selling a Home: Prevent or address mold-related property value loss.
Signs of Mold: Musty odors, visible mold, warped walls, or unexplained health issues.

DIY vs. Hiring a Pro

DIY Mold Testing Kit: <$40 but limited in scope.
Professional Inspection: $657 on average, with thorough assessments and lab testing.
Recommendation: Always hire a professional for reliable results and proper safety protocols.

Why It’s Worth It

Health: Mold exposure causes allergies, respiratory issues, and severe infections.
Property Value: Mold devalues homes by 20–37%.
Long-Term Savings: Early detection prevents expensive remediation or structural repairs.

Pro Tip: Get regular inspections if your home is prone to moisture or in a flood-prone area to prevent mold growth!