Mold Testing Vs. Mold Inspection

Mold Testing Vs. Mold Inspection

Given that the typical person spends 90% of their time indoors, you need to feel secure and at ease in your own house. Unfortunately, unsolicited guests like mold may be found in a lot of homes.

Moreover, mold grows and spreads in just 24 to 48 hours. Therefore, you need to take care of any mold issues at once.

Mold testing and inspection are the two main ways to deal with mold growth in your house.

What distinguishes these two services from one another, though? We'll talk about these two procedures and point out their main distinctions in this piece.

Compare Mold Testing with Mold Inspection

If you are wondering what the difference is between these two, read this part thoroughly: Mold inspection vs mold testing.

1. Purpose

  • Mold inspection: Finding the existence of mold, estimating the growth's extent, and evaluating any possible health hazards are the three main goals of a mold inspection.
  • Mold testing: Testing for mold in a structure or environment is one way to find out whether it exists, preventing any health concerns and property damage is vital, an old grows well in moist conditions. Mold testing might assist in identifying the moisture source responsible for the mold development.

2. Process & Duration

  • Mold inspection: Depending on the size of the space and the quantity of mold tests needed, this process will usually take one to two hours. Interview, visual inspection, sampling, and report are all steps in the process.
  • Mold testing: The samples go through a thorough analytical procedure in the lab. To determine the kinds of mold present and their quantities, the samples must be cultured. This lab analysis step can take one to three days, but it might take longer.

3. Outcome

  • Mold inspection: Your test results will tell you what kinds of mold are there as well as how concentrated the mold spores are in the air. It is probable that the results will be expressed in spores per cubic meter of air, or sp/m3. In general, it is thought to be typical to have fewer than 500 sp/m3 of mold spores.
  • Mold testing: Testing for mold can identify the kinds and quantity of mold present in a given space. Typically, the findings show mold concentration, mold identification, and standards comparison.

4. Cost

  • Mold inspection: A mold inspection may cost anywhere from $250 to $1,100, based on a number of variables like the size of your home, the location, and the suspected degree of the mold problem.
  • Mold testing: Mold testing can cost anywhere from $250 to $1,100 on average, depending on the size of your home and the kind of testing necessary.

Do you need more information about mold inspection? If so, click here.

When Should You Consider Mold Inspection And Testing?

The signs that show you need to consider a mold inspection are different from the signs that show you need mold testing.

mold inspection and mold testing

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Below we have mentioned the most important ones for each:

Time of Mold Inspection

When there are indications of possible mold development or when you have worries about possible mold exposure, you should think about getting a mold inspection.

Here are some crucial circumstances to be mindful of:

  • The most apparent cause for a mold examination is visible mold growth. In order to choose the optimal remediation strategy, it is imperative to identify the kind and amount of any mold, even if it is only a little patch.
  • Musty Odors: Even if mold development isn't yet apparent, a persistent musty stench in your house may be a sign of it.
  • Water Damage: Leaks, floods, or issues with the roof can cause water damage in the past or present, which provides the perfect conditions for mold growth.
  • Determine the kind of mold present and evaluate potential health hazards if you or a family member is having health problems such as allergies, skin irritation, or respiratory difficulties and you believe mold exposure may be a contributing cause.
  • Prior to Selling or Purchasing a House: An examination for mold growth may be a useful resource when buying or selling real estate.

Time to Test for Mold

By collecting samples for laboratory examination, mold testing surpasses a mold inspection.

A mold examination can spot obvious mold development and possible trouble spots, but testing gives a more accurate estimate of the kind and concentration of mold spores present.

The following are some crucial circumstances in which mold testing might be very helpful:

  • After a Mold Inspection: Mold testing can determine the precise species of mold if an examination finds visible mold growth but the type of mold is unclear.
  • Significant Water Damage or Suspicion of Hidden Mold: In the event that there is no discernible mold development, mold testing may be necessary. Even in hidden places behind walls or ceilings, testing can assist in determining the kind and quantity of mold spores present.
  • Health Concerns Following Visible Mold Remediation: Mold testing can confirm whether visible mold remediation activities were effective and whether any mold spores are still airborne following visible mold cleanup.
  • Purchasing or Selling a House with Possible Mold Problems: Mold testing can offer a more conclusive response on the kind and degree of mold contamination if a mold inspection during a real estate transaction raises questions.


Is mold assessment different from mold inspection?

Although "mold assessment" and "mold inspection" are frequently used synonymously, there are a few minor distinctions.

A mold assessment is a more involved procedure that involves figuring out the source, amount, and possible health hazards of the mold in addition to evaluating whether it is there.

In contrast, a mold inspection is a more targeted assessment that only determines whether or not mold is present and where it is located.

What are the two types of mold inspections?

Surface sampling and air quality testing are the two most used kinds of mold testing. Mold spores are detected in air samples taken from various locations within your house or place of business during an air quality test.

On the other hand, surface sampling entails collecting samples from the building's walls, floors, and ceilings in order to identify any areas where mold may be forming.

What is the most accurate way to test for mold?

For the most precise way to determine exposure, use air sampling. A tape lift can detect the presence of mold growth on a surface with accuracy, but it cannot tell you if the mold growth has impacted the interior air quality. To do this, just an air sample will do.

What is the difference between an air quality test and a mold test?

In order to determine the general health of the air, tests measuring air quality look for a variety of air contaminants, including volatile organic compounds.

To identify the amount and type of mold present, mold tests particularly look for mold spores in the air using methods like spore trap sampling.


Although the two terms “mold testing” and “mold inspection” are mistakenly used interchangeably, they differ in all aspects.

In this article, we explored how they are different in purpose, costs, results, etc. If you are thinking about doing one of them, you should be aware of their differences first.

Let us know if this post is useful for you.