RTK Environmental

What They Do

Water DamageMoldMold TestingAsbestos

• Indoor Air Quality Testing
• Mold & Toxic Material Test
• Toxic Lead - Testing
• Mold & Toxic Material Test - For Business

In Their Own Words

For over 30 years, we've been a trusted leader in environmental testing, serving over 45,000 commercial and residential customers. We provide unbiased testing for mold, lead, asbestos, VOCs, water, soil, radon, and indoor air quality. Serving Connecticut, Southern New York, and Northern New Jersey. Because we only test and don't remediate, you can be confident in our unbiased results.

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

Before You Call RTK 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 a Connecticut home improvement contractor registration and look it up with the Department of Consumer Protection. Also ask for proof of insurance and industry certification for the restoration crew.

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.
• Call a proAsbestos in Older Homes, Where It Hides and What Not to TouchWhere asbestos hides in older homes, why intact material is often safest left alone, how lab testing works, and what never to sand, scrape, drill or break.