4 Corners Environmental

What They Do

Water DamageMoldMold Testing

• Air Sampling
• Building Construction
• Customer Reviews
• Environmental Protection
• Formaldehyde Testing
• Gas Leak Detection
• Home Inspections
• Home Maintenance
• Lab Testing
• Mold Inspections
• Mold Remediation
• Mold Testing
• Radon Testing
• Soil Testing
• Visual Assessment
• Water Intrusion

In Their Own Words

Barry Mankin is the owner of 4 Corners Environmental and strives to bring a holistic, comprehensive approach to his testing and evaluation of every space he encounters. By combining his 25+ years of experience in the areas of construction and maintenance, his extensive training in the areas of indoor air quality and testing, and his expertise as one of middle Tennessee’s top home inspectors, Barry can identify the “why” behind his findings in your home or business, and help you get to the root of the issues. He has a passion for equipping his clients with real solutions to mitigate any air quality risks that could affect their health.

Written by the business on its public profile. We have not verified these claims.

Before You Call 4 Corners Environmental

1. Do you take moisture readings every day and will you give me the drying log?
2. Are your technicians certified in water damage restoration?
3. Where do you think the moisture is coming from, and who fixes it?
4. Will you set up containment and negative air, and how will you protect the rest of the home?
5. Do you also do remediation? If so, who checks your work?

Ask for the company’s contractor or home improvement license and look it up with the Tennessee Board for Licensing Contractors. Also ask for proof of insurance and industry certification for the technicians.

How Their Reviews Break Down

Counts from public listings as of September 23, 2026. A handful of reviews says less than a few hundred.

Read This While You Wait

• DIY with careWhat to Do in the First 24 Hours After Water DamageAn hour by hour plan for the first day after water damage. Make it safe, stop the source, document, remove water and start drying before mold can start.
• DIY with careSafe DIY Mold Cleanup for Areas Under 10 Square FeetA step by step method to clean up mold under 10 square feet safely, with the gear to buy, what to throw away, why bleach is not the default, and when to stop.
• Call a proMold Testing, When It Is Worth It and How to Read a Lab ReportWhen a mold test is worth paying for, which kind to ask for, why store kits mislead, and how to read spore counts, outdoor controls and a lab report yourself.
• DIY friendlyWasher, Dishwasher, Fridge and Toilet Supply Line LeaksHow washer hoses, dishwasher lines, ice maker tubing and toilet supply lines fail, how to clean up each kind of leak, and how to replace a line yourself.