---
title: "Costello Construction Group LLC d/b/a DEMTEC, Thornwood, NY | Lead Paint Roster"
description: "Costello Construction Group LLC d/b/a DEMTEC: Lead abatement in Thornwood, NY. Licence details, contact and quotes."
canonical: https://leadpaintroster.com/firms/costello-construction-group-llc-d-b-a-demtec-ny0907/
---

# Costello Construction Group LLC d/b/a DEMTEC

* Lead abatement
* Thornwood, NY (Westchester County)
* Phone: (516) 216-0597
* Address: 19 Rolling Hills Rd, Thornwood, NY 10594
* EPA Lead-Based Paint Activities firm: Abatement #LBP-F295793-1 (exp. 2028-06-10)

Source: https://cdxocsppapps.epa.gov/ocspp-oppt-lead/firm-location-search, retrieved 2026-10-12. Claim / correct: https://leadpaintroster.com/claim-listing/?id=NY0907