---
title: "Mold Inspection & Remediation in Sullivan County, NY"
description: "2 NYS DOL-licensed mold assessors and remediators in Sullivan County, New York, with licence numbers, expiry dates and source links."
canonical: https://moldroster.com/ny/county/sullivan/
---

[Home](https://moldroster.com/) › [New York](https://moldroster.com/ny/) › Sullivan County

# Licensed mold assessors & remediators in Sullivan County, NY

**Quick answer:** 2 NYS DOL-licensed listings with an address of record in Sullivan County (2 mold assessment): 2 firms and 0 individual licensees. Licensed pros often travel, so ask whether they cover your address.

[How to get quotes](https://moldroster.com/quotes/?county=sullivan&st=ny)

## Which licensed mold assessors are in Sullivan County, NY? (2)

2 listings are shown in this section with an address of record in Sullivan County. Listings holding more than one licence type appear once, in the first matching section.

✔ Licensed by NYS DOL Mold assessment

### Costa Home Builders LLC (dba CHB Inspections)

Licensed firm

67 S Hill Rd, Grahamsville, NY  
☎ [(845) 798-2100](tel:8457982100)

Mold Assessment Contractor License (SH125) #25-6HXTO-SHMO (exp. 2027-08-31)  
Source: [NYS DOL list](https://data.ny.gov/Government-Finance/Mold-Contractor-Licenses-Four-Year-Window/ikqx-ispy), retrieved 2026-10-12  
[Claim, correct or remove this listing](https://moldroster.com/claim-listing/?id=NY0480)

✔ Licensed by NYS DOL Mold assessment

### JEM Inspections & Consulting LLC

Licensed firm

3 Sycamore Ln, Monticello, NY  
☎ [(516) 780-5062](tel:5167805062)

Mold Assessment Contractor License (SH125) #26-66JT3-SHMO (exp. 2028-03-31)  
Source: [NYS DOL list](https://data.ny.gov/Government-Finance/Mold-Contractor-Licenses-Four-Year-Window/ikqx-ispy), retrieved 2026-10-12  
[Claim, correct or remove this listing](https://moldroster.com/claim-listing/?id=NY0825)

## Which counties border Sullivan County, NY?

Delaware (0) · [Orange](https://moldroster.com/ny/county/orange/) (33) · [Ulster](https://moldroster.com/ny/county/ulster/) (18)

Adjacency from the U.S. Census Bureau county adjacency file.

## How do I hire a licensed mold pro in Sullivan County, NY?

1. Look the name up in the NYS DOL records ([New York State Department of Labor](https://dol.ny.gov/mold-program)). Our copy was retrieved 2026-10-12, so check that the licence is still current.
2. Ask for the licence number in writing and make sure the licence type matches the job: assessor for testing and a protocol, remediator for removal.
3. Use separate, independent firms for testing and for remediation (required by New York law).
4. Ask for proof of insurance and a written scope before work starts.

## Frequently asked questions

**How many licensed mold assessors are in Sullivan County?**

2 listings with a NYS DOL mold assessment licence and 0 with a remediation licence have an address of record in Sullivan County. Pros from neighboring counties may also serve the area.

**How do I check a Sullivan County mold company's licence?**

Look it up with the New York State Department of Labor (NYS DOL). Each listing here shows the licence number and expiry date from the agency's records.

## Guides

[Mold assessment vs remediation](https://moldroster.com/mold-assessment-vs-remediation/) · [Mold inspection & remediation cost + estimate tool](https://moldroster.com/mold-remediation-cost/) · [Mold licensing rules by state](https://moldroster.com/mold-licensing-by-state/) · [How to hire a mold pro](https://moldroster.com/hiring-a-mold-pro/)

Data last verified 2026-10-12 against NYS DOL licence records.