Asbestos testing labs in Connecticut
3 lab sites accredited by NIST NVLAP · as listed on November 7, 2026
About this list
On November 7, 2026 the NIST NVLAP directory listed 3 lab sites in Connecticut (3 cities) accredited for Asbestos Fiber Analysis. Their scope documents show 3 sites accredited for bulk analysis (PLM) and 1 site for airborne analysis (TEM).
Sorted A to Z. A listing is not an endorsement and does not say whether the lab takes samples from homeowners. Confirm the test you need with the lab before you send samples.
Accreditation as listed by NIST NVLAP on November 7, 2026; confirm with the lab.
Accredited asbestos labs in Connecticut (3)
| Lab | City | Bulk (PLM) | Airborne (TEM) | NVLAP lab code | Accreditation expires | Phone |
|---|---|---|---|---|---|---|
| ChemScope, Inc. | North Haven | Yes | No | 101061-0 | March 31, 2027 | Not stated on the list |
| EMSL Analytical, Inc. | Meriden | Yes | Yes | 200700-0 | December 31, 2026 | Not stated on the list |
| TRC Environmental Corporation | Windsor | Yes | No | 101424-0 | June 30, 2027 | Not stated on the list |
Older homes in Connecticut and where the labs are
In Connecticut, 1,036,746 of 1,541,822 housing units (67%) were built before 1980, rank 4 of 45 states and DC by that share (Census ACS 2020–2024, table B25034). Homes of that age are the ones most likely to contain asbestos-containing materials such as insulation, flooring and popcorn ceilings. The counties with the most older homes, and how far each is from the nearest NVLAP-accredited asbestos lab site:
| Planning region | Homes built before 1980 | Share of homes | Nearest listed lab site |
|---|---|---|---|
| Capitol Planning Region (measured from Hartford) | 284,822 | 68% | 8 mi: TRC Environmental Corporation, Windsor |
| South Central Connecticut Planning Region (measured from New Haven) | 174,538 | 70% | 6 mi: ChemScope, Inc., North Haven |
| Western Connecticut Planning Region (measured from Danbury) | 157,300 | 63% | 29 mi: Eastern Analytical Services, Inc., Elmsford |
| Naugatuck Valley Planning Region (measured from Waterbury) | 127,232 | 66% | 12 mi: EMSL Analytical, Inc., Meriden |
| Greater Bridgeport Planning Region (measured from Bridgeport) | 97,004 | 77% | 24 mi: Enviroscience Consultants, LLC, Ronkonkoma |
| Southeastern Connecticut Planning Region (measured from Norwich) | 82,202 | 65% | 38 mi: TRC Environmental Corporation, Windsor |
| Lower Connecticut River Valley Planning Region (measured from Middletown) | 52,083 | 63% | 9 mi: EMSL Analytical, Inc., Meriden |
| Northwest Hills Planning Region (measured from Torrington) | 36,815 | 66% | 24 mi: TRC Environmental Corporation, Windsor |
Every county in the table has a listed site within 50 miles. Distance runs from the county’s centre (mean of its ZIP-code points) to the lab’s ZIP-code point, in a straight line. Source: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates, table B25034 (Year structure built), county level, downloaded November 15, 2026.
How far the labs stretch in Connecticut
Connecticut has 3 listed asbestos lab sites for about 1,036,746 homes built before 1980: one site per 345,582 older homes, the 21th most stretched of 35 states with a listed site (the middle state has one per 455,948).
- 3 of the 3 sites are accredited for material samples by PLM (pieces of popcorn ceiling, vinyl floor tile, pipe wrap or other building material).
- 1 of the 3 sites is accredited for air samples by TEM (air samples, such as the clearance test after asbestos removal).
Counts from the accreditation list; homes from Census ACS 2020–2024 (B25034). A site count, not capacity: one lab can process many samples, and many accept samples by mail.
Labs here that print a homeowner price
- EMSL Analytical, Inc.: $95.00 per sample · lab’s page
As printed on the lab’s website, read November 13, 2026. Confirm the price and the test with the lab. Compare all published prices, including labs in other states.
Bulk (PLM) and Airborne (TEM) are the two parts of the NVLAP program as NIST names them; “Yes” means the lab’s scope document lists a method in that category. Other states: all states.
Other home hazard tests: Lead paint testing · Mold testing.