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Maybe you’ve noticed a mildewy smell. Or you’ve had water leaks or spotted visible signs of mold. For many homeowners, the thought of having mold in their home is terrifying, but if you’ve seen the signs, it’s important to take the next—and safest—step, which is to schedule a mold inspection with a trained professional who can help you understand whether you have a mold problem and what you can do about it.

Mold testingYou might be wondering, how much time will it take? Will they pull up my rugs? Is the process safe? After you’ve scheduled it, what can you expect from your mold inspection? What about results?

“Knowledge,” says Robert Weitz, a certified microbial investigator and Principal at RTK Environmental Group. “A big part of our investigation is education. We help our clients understand what we’re doing and why we’re doing it. Our inspectors are all well-educated and often have years of experience in construction. They understand how homes are built and how mold can cause them to fall apart. And they are eager to share information.”

Homeowners should expect highly trained professionals to show up for the job, according to Weitz, who notes that he and his team perform independent testing services and not remediation or repairs.

mold testing wall“That unbiased information is really important,” he says. “There’s no conflict of interest, which means we’re potentially saving homeowners thousands of dollars in unnecessary remediation costs, he says. “A new law passed in New York State actually requires two different companies to do the testing and remediation on the same job to protect consumers.”

Here’s a closer look at what you can expect from an RTK mold inspection professional:

Before the Inspection


RTK will provide you with any specific information on the test that you will be having. If you are having an Indoor Air Quality test done for mold, you may need to close all outside doors and windows, and leave internal ones open. Depending on the location and type of test, we will provide you with information about proper pre-test protocol to ensure you get the most accurate results. Don’t worry – you’ll be full prepared, and it is very easy to do.

During the Inspection


Your RTK professional may need to ask you questions to gather critical information, such as when you first noticed the problem; if you have had recent water, moisture, or weather-related issues; whether you’ve had recent renovations to your home; or if you’ve noticed roof or plumbing leaks. Don’t worry—it’s a conversation, not an interrogation! By the same token, don’t be afraid to ask questions and tap into the expertise of your very knowledgeable and experienced inspector.

tape lift sample moldInvestigation:

In addition to asking questions, the home visit includes a complete visual assessment. If the RTK professional suspects a mold contamination, your inspector won’t disturb walls, baseboards, or raised floors because it might launch and spread mold spores into the air. Instead, RTK will look for standing water, wet, or damp areas. They’ll start with the area you may have noticed but may also look in the basement and other areas where moisture can enter the home. RTK may also use moisture meters and thermal image testing to uncover hidden moisture concerns that may be causing mold. Also, the inspector may take digital photos to aid in the assessment and to include in their report.


Mold is everywhere in our environment. RTK takes air and surface samples during an investigation in order to determine the amount of mold, the types of mold, and the location of mold. Mold spores are microscopic, move easily on air currents and can get picked up by heating and air conditioning units and moved to other areas of the house. Air samples—taken not only in the area of concern, but in other areas of the house—identify any cross-contamination of mold spores and determine the levels of mold in the air.

The entire process typically takes 1-2 hours but can run longer depending on the size of the area to be inspected, what information is discovered along the way, and what kinds of questions you may have.

After the Inspection

mold sampleAnalysis:

To ensure reliable results, RTK sends all samples to labs accredited by the American Industrial Hygiene Association. RTK takes those results and combines them with what they saw and learned during their investigation, providing a clear and complete report to you after their visit. Essentially, the report puts results in layman’s terms and based on findings, makes recommendations on what needs to be done. You’ll know whether the health of your family is at risk and if professional remediation is necessary. While other companies might take samples and send raw data results to client—leaving interpretation up to you—RTK fully explains their analysis and provides contact information for clients to reach them directly to answer any questions via telephone.

Follow up:

Should remediation be necessary, RTK professionals offer follow up testing to ensure that the work performed by the remediation contractor was done correctly and effectively.

Stay tuned for parts 2 and 3 of our “What to Expect When You’re Inspecting” series. Next up: Asbestos!

As water systems age, 63% of Americans are now concerned a “great deal” about drinking water pollution, according to a Gallup poll.

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How RTK Environmental Group keeps you safe while we’re in your home or workplace.

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