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Charleston, Mount Pleasant, Summerville & the Lowcountry

Mold Remediation in Charleston, SC

We connect Charleston-area homeowners with local mold inspection and remediation companies for free, no-obligation quotes, so you can compare scopes and prices before you decide.

  • Free quotes, no obligation
  • Crawl spaces, attics, walls, HVAC and flood damage
  • Clear typical price ranges up front
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No obligation. We reply fast — usually same day.

  • Free quotes
  • No obligation
  • Clear price ranges
  • Charleston & the Lowcountry

Mold help for every part of a Lowcountry home

Tell us what you are seeing and where. We pass your request to local companies that handle that kind of job, and they follow up with quotes.

Why mold thrives in Charleston

Heat, humidity, rain and salt water all show up here in the same year.

Long, wet, humid summers

NOAA's 1991–2020 normals for Charleston International Airport show 52.51 inches of rain a year, and June through September alone bring 25.79 inches, about half the total. July averages a high of 91.3°F and a low of 73.7°F, and the SC State Climatology Office lists Charleston's August mean relative humidity at 79%.

Tidal flooding

NOAA's Charleston Harbor gauge recorded 19 minor and 2 moderate high-tide flood days in 2023 under NOAA's derived thresholds. Salt water on streets and yards pushes moisture toward crawl spaces and ground floors.

Storms and heavy rain

Tropical Storm Debby dropped 18.25 inches of rain on Summerville in August 2024, and Idalia pushed Charleston Harbor to 9.23 feet (MLLW) in 2023, near the top of the record list. Soaked drywall, insulation and flooring can grow mold within days if they are not dried.

Encapsulated crawl space with brick piers and a dehumidifier under a Lowcountry home

Crawl space mold: the Lowcountry's most common problem area

Many Charleston homes sit above a crawl space, and the City of Charleston now bans slab-on-grade foundations for new one- and two-family homes in the Special Flood Hazard Area (for permits applied for on or after January 1, 2024), so more new homes are being built raised. Humid air under the house can grow mold on joists and subfloors.

A crawl space job may be simple mold cleanup, or it may include a vapor barrier, sealed vents and a dehumidifier (encapsulation). Cost guides put crawl space mold remediation at about $500–$2,000 and full encapsulation at about $1,500–$15,000.

Crawl space mold & encapsulation quotes · Is crawl space mold normal here? · Remediation vs. encapsulation

South Carolina has no mold license: what to ask a company

South Carolina's environmental agency says there are no state or federal laws, regulations or standards for mold or indoor air quality, and the state has no licensing program for mold inspection or removal. A bill, H.5109, was introduced in 2026 to create a state mold assessment and remediation board, but it has not passed as of October 2026. Rebuild work is different: under SC Code §40-59-20, residential specialty contractors (drywall, insulation and similar trades) must register when a job exceeds $500, and a residential builder license applies above $5,000. This is general information, not legal advice.

Because the state does not screen mold companies, ask every company you talk to:

  • What mold-specific training or certifications do your workers hold?
  • Can you show proof of insurance that covers mold work?
  • Who handles rebuild work, and what SC contractor license or registration covers it?
  • How will you find and fix the moisture source, not just the visible mold?
  • Will I get the full scope, containment plan and price in writing?
  • Do you recommend independent clearance testing when the job is done?

The EPA's advice is simple: make sure the contractor has experience cleaning up mold. Read more in Does South Carolina license mold companies?

How it works

Three steps, and you are never obligated to hire anyone.

  1. Tell us about the problem

    Use the form or call. Share where you see or smell mold and whether there was a leak, flood or storm.

  2. We connect you with local companies

    We pass your request to mold inspection or remediation companies serving your part of the Lowcountry. We usually reply the same day.

  3. Compare quotes and decide

    A company typically visits, inspects and gives you a written scope and price. You choose whether to go ahead.

See how getting mold help works, step by step

What does mold remediation cost?

Typical national ranges from cost guides, 2024–2026. These are estimates, not quotes.

JobTypical range
Typical mold remediation job$1,200–$3,750
Per square foot of affected area$10–$30
Crawl space mold remediation$500–$2,000
Mold inspection$450–$800
Whole house after a flood$10,000–$30,000

See the full cost guide and calculator

What to expect when you request quotes

  • The service is free, and there is no obligation to hire anyone.
  • We usually reply the same day.
  • A company typically wants to see the space before giving a firm price.
  • Ask for the scope in writing, including how the moisture source will be handled.

Not sure what you need yet? Start with our mold FAQ or request a free quote and describe what you are seeing.

Areas we cover around Charleston

Request quotes from companies serving the City of Charleston and these nearby communities. See all service areas.

Mold remediation questions

Is this a mold company?

No. Charleston Mold Experts is a free quote service. We connect Charleston-area homeowners with local mold inspection and remediation companies for free, no-obligation quotes. The company you choose does the inspection or remediation work, sets the price and is responsible for the job, so ask it the questions in our checklist before you hire.

Does South Carolina license mold remediation companies?

No. South Carolina has no mold-specific license. A bill, H.5109, was introduced in February 2026 to create a state mold board, but it has not passed as of October 2026. Rebuild work such as drywall, insulation or HVAC can still require an SC contractor license or registration. This is general information, not legal advice.

How much does mold remediation cost in Charleston?

Cost guides put a typical job at about $1,200–$3,750, or roughly $10–$30 per square foot of affected area. Crawl space jobs often run $500–$2,000, HVAC work $3,000–$10,000 and whole-house flood jobs $10,000–$30,000. These are national estimates; your price comes from an on-site assessment.

Can I clean up mold myself?

The EPA says that if the moldy area is less than about 10 square feet, a homeowner can usually handle it. Larger areas, mold inside walls or HVAC systems, and mold after sewage or flood water are usually better left to a professional. Either way, the moisture source has to be fixed or the mold tends to return.

Do I need mold testing before remediation?

Not always. The EPA says that in most cases, if visible mold growth is present, sampling is unnecessary. Testing can still help when you smell mold but cannot find it, after remediation to confirm the area is clean, or in a real estate deal. Many homeowners choose a tester who is separate from the remediation company.

How fast should I act after a leak or flood?

Quickly. The EPA and South Carolina's environmental agency both say water-damaged areas and items should be dried within 24 to 48 hours to prevent mold growth. Start drying right away, photograph damage for insurance, and request quotes as soon as you can. If you have health concerns about mold exposure, talk to your doctor.

Seeing or smelling mold? Get a clear plan.

Free, no-pressure quotes across Charleston, Mount Pleasant, North Charleston, Summerville and the Lowcountry.

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