GLS Mold Testing Charleston Mt Pleasant Summerville

What They Do

Water DamageMoldMold Testing

In Their Own Words

Since 2003, GLS Engineering & Testing has been providing homeowners in Charleston and the surrounding areas with high-quality mold testing and many other indoor air quality services. We are uniquely qualified to handle these tasks thanks to our combination of in-depth education and vast real-world experience. If you have any problems with mold, moisture, or air quality, our experts will be able to find locate the problems, as well as their sources, and help you prevent any further damage from being done.

Written by the business on its public profile. We have not verified these claims.

Before You Call GLS Mold Testing Charleston Mt Pleasant Summerville

1. Do you take moisture readings every day and will you give me the drying log?
2. Are your technicians certified in water damage restoration?
3. Where do you think the moisture is coming from, and who fixes it?
4. Will you set up containment and negative air, and how will you protect the rest of the home?
5. Do you also do remediation? If so, who checks your work?

Ask for a South Carolina contractor license and look it up with the state Department of Labor, Licensing and Regulation. Also ask for proof of insurance and industry certification for the restoration crew.

They list no storefront. Ask where the business is based and whether the crew is their own.

How Their Reviews Break Down

Counts from public listings as of September 23, 2026. A handful of reviews says less than a few hundred.

Read This While You Wait

• DIY with careWhat to Do in the First 24 Hours After Water DamageAn hour by hour plan for the first day after water damage. Make it safe, stop the source, document, remove water and start drying before mold can start.
• DIY with careSafe DIY Mold Cleanup for Areas Under 10 Square FeetA step by step method to clean up mold under 10 square feet safely, with the gear to buy, what to throw away, why bleach is not the default, and when to stop.
• Call a proMold Testing, When It Is Worth It and How to Read a Lab ReportWhen a mold test is worth paying for, which kind to ask for, why store kits mislead, and how to read spore counts, outdoor controls and a lab report yourself.
• DIY friendlyWasher, Dishwasher, Fridge and Toilet Supply Line LeaksHow washer hoses, dishwasher lines, ice maker tubing and toilet supply lines fail, how to clean up each kind of leak, and how to replace a line yourself.