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Best mold testing and remediation specialists near Gratis, OH

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Top-Rated Mold testing and remediation specialists in Gratis - Updated Nov 2026

EnCheck Environmental Services
4.6(
27
)
Mold & Toxic Material TestIndoor Air Quality TestingMold & Toxic Material Test - For Business

Serving Gratis, OH and surrounding areas

Approved

In business since 1994

Small jobs welcome

Credit card accepted

"Robert explained a person who checks for mold cannot, ethically, remediate the mold. It would be a conflict of interest. I appreciated that information. He was thorough and explained what he was doing. Luckily, I did NOT have an air quality problem. I highly recommend his services."
Mold Inspections
Mold Inspections
Mold Inspections
Mold Inspections
Response time7 hrs
Response rate92%
6 neighbors recently requested a quote
Avatar for Stay Dry Waterproofing, LLC
Stay Dry Waterproofing, LLC
4.7(
1,116
)
Toxicity and Mold - RemovalIndoor Air Quality TestingMold & Toxic Material Test+2 more

Serving Gratis, OH and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"Stay Dry’s mold remediation team was incredible! They were prompt, knowledgeable, and made sure our home was safe and clean. The difference in air quality is amazing, and they walked us through every step of the process. I highly recommend them for anyone dealing with mold issues!"
Drain tile sump pump system
Sample
Before and After Mold Remediation
Steel Beam wall push
Completed job

+93

Response time1 day
111 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Stay Dry Waterproofing - Columbus
Stay Dry Waterproofing - Columbus
4.0(
54
)
Toxicity and Mold - RemovalMold & Toxic Material TestIndoor Air Quality Testing+2 more

Serving Gratis, OH and surrounding areas

Approved (Corporate)

In business since 2010

Free estimates

Emergency services offered

"The team from Stay Dry was very professional. They were informative and transparent when describing what the work would entail and sent me pictures and updates throughout the day. They went out of their way to provide a thorough service. It is hard to know who to trust when having mold remediated because the levels of training and expertise are very different across companies. They are skilled and they care about the quality of their work and customer service. I will hire them again for the next project."
Interior Waterproofing
Interior Waterproofing
Interior Waterproofing
Interior Waterproofing
Interior Waterproofing

+23

Response time1 day
Response rate100%
21 neighbors recently requested a quote
Avatar for Trident Restoration, Inc.
Trident Restoration, Inc.
4.8(
7
)
Mold & Toxic Material TestMold & Toxic Material Test - For BusinessToxicity and Mold - Removal+1 more

Serving Gratis, OH and surrounding areas

Approved

In business since 2005

Free estimates

Offers commercial services

"I know that I'm being picky but there were a few paint splatters left behind. But it was ceiling work so splatters are probably expected. Other than that the work was good and I am confident no mold will return. The work was also quickly scheduled and finished quickly."
Apartment mold project
Apartment mold project
Wrenwood Water Damage
Wrenwood Water Damage
Wrenwood Water Damage

+8

Response time7 hrs
Recommended by100%of homeowners
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Mold Testing and Remediation FAQs, answered by experts

Damp air from a humidifier can cause mold in ducts if it raises the air's humidity level too high for the duct system to handle or malfunctions, but it’s not a normal occurrence. To avoid mold trouble, set the humidistat to between 30% and 35% and inspect it often to ensure accuracy.

You can check your home's humidity in a few ways. A simple option is to use a hygrometer, which you can find at a hardware or big box store. Your smartphone may also have an app that can measure humidity. Modern thermostats, particularly smart thermostats, are also able to measure humidity levels.

A mold inspection costs an average of $660, with a typical range between $300 and $1,025. However, costs can be as low as $150 or as high as $2,800 depending on several factors. These include the size of your home, the type of mold, the extent and accessibility of the affected area, your location, and the number and type of samples required. Hard-to-reach areas like air ducts, crawl spaces, and wall cavities can increase the cost. Specific tests have different prices; for example, swab testing typically costs $200 to $300 per area, while more extensive air testing can range from $250 to $700. A thorough inspection is crucial for determining the scope of the problem and identifying the best remediation method.

Wood stain is not considered toxic after it dries. The solvents in wood stain are what give off volatile organic compounds (VOCs), which are toxic, but these dissolve as the product dries, leaving behind a non-toxic product. When working with wood stain, you should always wear a respirator and rubber gloves to protect yourself, but once it dries fully, it’s not toxic, according to the manufacturer’s instructions.

The duration of mildew smell in carpets depends on several factors, including the extent of moisture, cleanliness, and ventilation. If promptly addressed, the smell can diminish within a few days to a couple of weeks after thoroughly drying and cleaning the carpet. However, in severe cases or if not properly treated, the smell might persist. Persistent odors could indicate deeper mildew growth, requiring professional cleaning or, in extreme cases, carpet replacement to completely eliminate the smell.

The Gratis, OH homeowners’ guide to mold testing and remediation services

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