---
title: "Langan Engineering and Environmental Services, LLC, Coppell, TX | Mold Roster"
description: "Langan Engineering and Environmental Services, LLC: mold assessment in Coppell, TX. TDLR licence details, contact and free quotes."
canonical: https://moldroster.com/tx/firms/langan-engineering-and-environmental-services-llc-tx0140/
---

# Langan Engineering and Environmental Services, LLC

* Mold assessment
* Licensed by TDLR (Texas Department of Licensing and Regulation)
* Coppell, TX (Dallas County)
* Address: 2999 Olympus Blvd Suite 165, Coppell, TX
* Phone: (973) 560-4900
* Website: http://www.langan.com/
* Google rating: 4.7 from 14 reviews (as of Oct 30, 2026)
* Mold Assessment Company #ACO1262 (exp. 2028-10-06)

Added by us, not on the state list: website and rating from the firm's [Google Maps listing](https://maps.google.com/?cid=1581020075690002774&g_mp=Cidnb29nbGUubWFwcy5wbGFjZXMudjEuUGxhY2VzLlNlYXJjaFRleHQQAhgEIAA), retrieved 2026-10-30.

Source: https://www.tdlr.texas.gov/LicenseSearch/licfile.asp, retrieved 2026-10-12. Verify: https://www.tdlr.texas.gov/mold/mold.htm. Claim / correct: https://moldroster.com/claim-listing/?id=TX0140