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Grain Valley, MO

Mold Inspection and Testing in Grain Valley, MO

Grain Valley, MO has 4 mold inspection and testing companies in our listings, 3 list themselves as open 24 hours and the most reviewed is 24 Hour Flood Pros with 736 reviews.

4 Companies Doing Mold Testing Work in Grain Valley

  1. 1

    24 Hour Flood Pros24/7

    1006 NW E Kansas City Industrial Blvd · Grain Valley 0.3 mi

    Google rating 5.0 from 736 Google reviews Facebook 5.0

    Top Rated 2026Most Reviewed 2026

    Water DamageMoldMold TestingFire and SmokeSewage

  2. 2

    Homesweet Home Advisor

    33109 E R D Mize Rd · Grain Valley 0.4 mi

    Google rating 4.9 from 103 Google reviews

    Top Rated 2026

    Mold TestingAsbestosLead Paint

  3. 3

    Kade Cleaning Systems, LLC24/7

    500 James D Rollo Dr · Grain Valley 0.9 mi

    Google rating 4.9 from 70 Google reviews Yelp 5.0 · Facebook 4.7 · BBB profile

    Top Rated 2026

    Water DamageMoldMold TestingFire and SmokeSewage

  4. 4

    Nick's Inspection Services24/7

    909 SW Shorthorn Dr · Grain Valley 1.8 mi

    Google rating 4.4 from 26 Google reviews

    Verified Remediation Pro

    Mold TestingAsbestosLead Paint

Hire an Independent Inspector

A mold inspector tells you whether you have a problem, where it is and what caused it. A remediator removes it. When the same company does both, it has a reason to find mold. If you can, hire an inspector who does not do remediation, and ask the remediator to follow that inspector’s written plan.

Ask the inspector what the visit includes. A good one looks for the moisture source first, uses a moisture meter and often a thermal camera, and only takes air or surface samples when the result will change what you do. After the work, a clearance test by the same independent inspector shows whether the job is done.

How to read a mold lab report

Can You Handle It Yourself

Call a pro

Home test kits that grow spores in a dish almost always grow something, because mold spores are everywhere. They cannot tell you whether you have a problem. A moisture meter and a flashlight will tell you more for less money.

Read the step by step guide

Reviews on Other Sites in Grain Valley

On Angi

We did not find an Angi profile we could match to a company here yet.

Have a BBB Profile (1)

Also matched here, 2 on Facebook and 1 on Yelp. Those show on each company row above.

A BBB profile is a listing with the Better Business Bureau. It is not the same as BBB accreditation. We only list a profile when its name and city match the company.

What It Costs Around Grain Valley

Prices in the Kansas City, MO-KS area run about 7 percent below the national average, so local jobs tend to cost less than the national figures.

JobTypical in Grain ValleyNational typical
Mold Inspection and Testingper visit, a visual inspection$175 to $550$200 to $600
Mold Inspection and Testingper visit, an inspection with samples$275 to $950$300 to $1,000
Mold Inspection and Testingper visit, a clearance test$275 to $750$300 to $800

Full Kansas City cost guide

Questions to Ask Before You Hire

  1. Do you also do remediation? If so, who checks your work?
  2. How many air samples will you take, and will you take an outdoor control sample?
  3. Which lab analyzes the samples, and is it accredited?
  4. Will the report include moisture readings and photos, not only lab numbers?
  5. Are you licensed as a mold assessor where this home is?

Guides for This Job

Questions People Ask

How many mold inspection and testing companies serve Grain Valley?
We list 4 companies in Grain Valley, MO. All of them list a street address.
Which mold inspection and testing companies in Grain Valley are open 24 hours?
3 list themselves as open around the clock, including 24 Hour Flood Pros, Kade Cleaning Systems, LLC and Nick's Inspection Services. Hours are self reported, so call to confirm someone answers at night.
Who has the best reviews in Grain Valley?
Among companies with at least 20 public reviews, the highest rated are 24 Hour Flood Pros (5.0 from 736), Homesweet Home Advisor (4.9 from 103) and Kade Cleaning Systems, LLC (4.9 from 70). A high rating from a small number of reviews is weaker evidence than a slightly lower rating from hundreds.

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