Mold Removal Contractors in Charleston, SC

18 listed 78% humidity (high risk) 44" annual rain typical job $1.3k–$3.7k

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Mold in Charleston, SC

Charleston's combination of high humidity (78% average) and significant rainfall (44 inches annually) creates ideal conditions for mold, especially in homes built around 1992 when many Charleston residences were constructed. Older homes in this climate are particularly vulnerable to crawlspace moisture problems, which then migrate upward into living areas. The salt air and coastal moisture mean that even well-maintained homes can develop hidden mold in walls, attics, and foundations if ventilation and drainage aren't working properly.

When you get quotes from the 31 contractors listed here, expect to see estimates between $1,250 and $3,700 for typical mold remediation projects. The variation depends on how much of your home is affected, whether the mold is in easily accessible areas or requires opening walls, and how extensive the moisture source is. A small bathroom mold problem costs far less than addressing mold spreading from a compromised crawlspace or roof leak.

South Carolina doesn't require a specific mold remediation license, which means you need to do some verification yourself. Check that any contractor you hire holds a valid license from the SC Contractor's Licensing Board and carries liability insurance and workers' compensation coverage. Ask to see these documents before work begins.

One critical detail for Charleston homeowners: get a moisture assessment as part of your initial consultation. Many mold problems here aren't actually about the mold itself but about ongoing moisture entering your home. If the moisture source isn't identified and fixed, the mold will return, wasting your money on remediation alone.

800 Johnnie Dodds Blvd, Mt Pleasant, SC 29464, USA

1342 Chuck Dawley Blvd, Mt Pleasant, SC 29464, USA

125 Bud Ln, Summerville, SC 29486, USA

★ 5 · 158 reviews on Google

2118 Ridge Church Rd Suite D, Summerville, SC 29486, USA

★ 5 · 529 reviews on Google

1521 Dawn Mist Wy, Charleston, SC 29414, USA

★ 5 · 21 reviews on Google

2235 Technical Pkwy Suite E, North Charleston, SC 29406, USA

★ 5 · 58 reviews on Google

221 St James Ave Suite 5A, Goose Creek, SC 29445, USA

★ 4.9 · 34 reviews on Google

2561 Oscar Johnson Dr # A, North Charleston, SC 29405, USA

★ 4.9 · 70 reviews on Google

461 Jessen Ln suite d, Charleston, SC 29492, USA

★ 4.9 · 178 reviews on Google

778 Folly Rd d, Charleston, SC 29412, USA

★ 4.9 · 802 reviews on Google

157 Acres Dr, Ladson, SC 29456, USA

3228 Industry Dr, North Charleston, SC 29418, USA

1032 Legrand Blvd # B, Charleston, SC 29492, USA

419 Jessen Ln, Charleston, SC 29492, USA

1941 Savage Rd #500E, Charleston, SC 29407, USA

★ 4.7 · 126 reviews on Google

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Business data sourced from public records · Last updated March 2026

MoldGuide is a lead referral service. We do not employ, endorse, or guarantee the work of any contractor listed. Verify licenses, insurance, and certifications independently before hiring.