The IEP Group

Your Indoor Environmental Professionals

Welcome to Our Website

The IEP Group, LLC (formerly Truth Consulting) is an industrial hygiene and indoor air quality consulting firm.  Robert E. Crawley, CIEC, is the principal founder and key industrial hygiene consultant.  Mr. Crawley has over 18 years’ experience in the environmental consulting field.

The IEP Group’s goal is to provide our clients with the most accurate information, in the most reasonable amount of time, and in the most useful format.  Our attention to detail and professional reports is what sets us apart from our competition.  More than just pump jockeys, we employ true Indoor Environmental Professionals (IEP’s) and when requested, we will help determine reasonable solutions that can restore your indoor air quality (IAQ) and help you or your employee’s breath easy.

  • Rapid response
  • Sensitive to your disruption
  • Accurate information
  • Experienced personnel

– let the IEP Group help you navigate through whatever environmental issue you might be facing.

Thank you for choosing The IEP Group!


I just want to thank you for your work and report. It has gotten my insurance company's and the landlord's attention to fix this. They wouldn't have otherwise. The insurance has even indicated they will reimburse me for the report. I will recommend you if the occasion ever arises.
Lyle w.
If you are looking for a legitimate company, look no further! These guys are as professional as it gets and very thorough. We really appreciate everything you have done for us. Robert and Charles are fantastic! Can't say enough good things about them.

On a side your research before you hire a company for environmental testing. The first company we contacted was clueless and tried selling us a mist that would soak through everything and kill mold. Red flags went off, especially since they could not find it. Robert and Charles came in and found it all (and Serv Pro). Unfortunately, we had a toxic mold found hidden behind my kids walls. The spores then got into our HVAC system and blew it everywhere. These guys created a plan to remediate it, and now we are all clear.

My family, especially my 3 children, suffered for years because of this mold. My son was hospitalized twice in the last year alone. Numerous surgeries between them. Now, they are all getting better! This stuff is no don't go cheap. They are worth every penny!!
Dayna M.
I had the opportunity to work with Robert Crawley during 2018 as he assisted a young family I was representing in a significant residential mold remediation matter. My clients and I were very impressed with the personal hands-on professional attention he rendered all of us in this most trying set of circumstances. He made himself available for personal inspections of the premises and deposition purposes. His testimony was objective, believable and persuasive to all attorneys and parties involved. I would highly recommend Mr Crawley for your consideration in these such matters.
David Y.
I just wanted to let you know we are so VERY PLEASED with your company!!! Charles was very professional took his time, and explained everything in detail! But, what pleased us more than anything, before he left he asked to pray over our daughter who has been very sick. The fact he took the time to do that meant a lot to us! I wasn't sure where to leave a review, but I did find you all on Google and left one there. We will definitely be referring your company to everyone we know! Thank you so much for your help!!!!

Lexington, KY | Nationwide

Louisville, Kentucky

  • (502) 264-3028
  • 657 South Hurstbourne Parkway, Suite 307 Louisville, KY 40222​​​​​​

Cincinnati, Ohio

Indianapolis, Indiana