Mold Remediation Cost 2026

Professional mold containment and removal, priced by affected area — always requires an in-person inspection.

$1,950 – $2,700 typical job cost

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Pricing by Tier

National average pricing — total remediation cost.

Tier	Price	Notes
Small (<10 sq ft)	$750–$1,050	Corner of shower or small spot treatment
Medium (10–100 sq ft, Most Common)	$1,950–$2,700	Bathroom wall or similar single-area job
Large (100–300 sq ft)	$4,300–$5,800	Basement or multi-wall contamination
Extensive (300+ sq ft)	$8,500–$13,000	Major contamination across multiple areas

What to Know

✓Always requires an in-person inspection — the moisture source must be fixed before remediation begins
✓Black mold (Stachybotrys) typically costs 5–18% more to remediate than common surface mold due to stricter containment
✓Air quality testing ($220–$290) and post-remediation clearance testing ($190–$250) are recommended add-ons
✓Commercial properties cost 30–50% more than residential due to larger scale and compliance requirements

Mold Remediation Cost by State

California$2,730–$3,780

New York$2,769–$3,834

Texas$2,048–$2,835

Florida$2,048–$2,835

Illinois$2,301–$3,186

Washington$2,574–$3,564

Colorado$2,379–$3,294

Arizona$2,106–$2,916

FAQs

How much does mold remediation cost?

A medium-sized area (10–100 sq ft, like a bathroom wall) costs $1,950–$2,700. Small spot treatments run $750–$1,050, while extensive contamination (300+ sq ft) can run $8,500–$13,000+.

Does the type of mold affect the price?

Yes — black mold (Stachybotrys) typically costs 5–18% more than common green or white mold due to stricter containment, PPE, and disposal requirements.

Do I need to fix a leak before mold remediation?

Yes — the moisture source must be identified and fixed before or during remediation, or the mold will return within weeks regardless of how thorough the cleanup is.

Is air quality testing necessary?

It's recommended, especially before and after remediation, to confirm the extent of contamination and verify successful removal. It costs $220–$290 per test.

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