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How Much Does Mold Cost in California?

California prices are 35% above the national average

Mold in California costs between $396 and $9,940 per project in 2026. The national average is $2,743.

Low
$396
California Avg
$3,703
High
$9,940
per projectNational avg: $2,743
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Mold Costs in California — Detailed Breakdown

Service
CA Low
CA High
Natl Avg
Surface Mold Removal
$470
$2,458
$1,085
Mold Inspection & Testing
$394
$1,782
$806
Black Mold Remediation
$1,538
$10,593
$4,493
Attic Mold Removal
$2,071
$9,636
$4,336
Basement Mold Treatment
$1,586
$9,940
$4,269
[2]
$640
$5,700
$2,348
Surface Mold
$470
$2,458
$1,085
Black Mold (Stachybotrys)
$1,538
$10,593
$4,493
Aspergillus
$942
$4,624
$2,062
Penicillium
$969
$8,362
$3,456
Cladosporium
$964
$8,134
$3,370

Frequently Asked Questions

How much does mold cost?

The average cost of mold is $3,703 per project. Prices typically range from $396 to $9,940 depending on the scope of work and local market conditions.

What factors affect mold prices?

Key factors include: scope of the work, the provider's experience level, your location, urgency, and any specialized requirements. Getting multiple quotes is always recommended to ensure competitive pricing.

How do I find a reliable mold professional?

Start by getting 2-3 quotes from qualified professionals. Check their reviews, ask for references, verify their credentials and licensing, and confirm they carry appropriate insurance. Trusted Partners List connects you with pre-vetted pros in your area.

What should I ask before hiring a mold professional?

Key questions include: What is included in your price? What is your experience with this type of work? How long will it take? What is your cancellation/refund policy? Do you have insurance and proper licensing? Can you provide references from past clients?

When is the best time to hire a mold professional?

The best time varies by service. Generally, booking during off-peak periods can save 10-20% because professionals have more availability. For urgent needs, services are available year-round but may cost more during busy seasons.

Ready to start your mold project in California?

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