Heating, ventilation and air-conditioning (HVAC) contractors · Massachusetts

J.M. Service Company, LLC

Name: J.M. Service Company, LLC Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Braintree, MA · ~27 workers · 2 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

B
Good Safety Record: 1.5
Avg TCR: 2.8
Industry avg: 0
Fatalities

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The verdict

J.M. Service Company, LLC runs at 54% of its industry's injury rate - safer than the typical Heating, ventilation and air-conditioning (HVAC) contractors workplace, earning a grade B.

J.M. Service Company, LLC: 1.5 TCR = 54% of Heating, ventilation and air-conditioning (HVAC) contractors BLS 2.8 · 2y Form 300A (see methodology below)

J.M. Service Company, LLC safety composite

J.M. Service Company, LLC scores strongest on total case rate (tcr) (safer than 78% of same-industry peers) and weakest on dart rate (safer than 29%), blended into one 0-100 breakdown against same-industry peers. A missing measure drops out and redistributes its weight rather than deflating the score. This is a per-dimension breakdown, distinct from the single letter grade above it (which weights TCR alone against the BLS industry benchmark).

54/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): B 1.52 per 100 workers

Safer than 78% of industry peers
DART rate: F 3.04 per 100 workers

Safer than 29% of industry peers
Fatalities: D 0

Safer than 51% of industry peers

Benchmarked live against every credibly-rated employer in the same NAICS industry code in the current OSHA extract (a segment must have at least 8 rated peers to benchmark). Not a legal or compliance determination; PlainSafetyScore's own weighting (TCR 40%, DART 35%, fatalities 25%).

Rising injury rate

J.M. Service Company, LLC: 0.0 → 3.0 TCR

Peak year 2024 @ 3.0 TCR · DART/TCR 2× in 2024

J.M. Service Company, LLC's TCR rose 3.0 from 0.0 in 2022 to 3.0 in 2024. In 2024, DART was 2× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 238220 · Braintree, MA AT/BELOW-IND · SMALL

Grade B · TCR 1.5 · 54% of ind

DART 3.0 DART
RANK #24/140
PHOTO Dahme Mechanical Ind…
BOOK 2y book
INJ 1 inj
SIZE ~27 FTE

Nearest TCR peer: Dahme Mechanical Industries, Inc. (0.0 TCR gap)

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This site

1.5
Dahme Mechanic

1.5
Advanced Plumb

1.5
Perfection Gro

1.5
NEMSI-New Lond

1.5

What this shows J.M. Service Company, LLC averages 1.5 TCR (54% of the Heating, ventilation and air-conditioning (HVAC) contractors BLS benchmark).

J.M. Service Company, LLC TCR series: 2022=0 · 2024=3 · BLS 2.8

Where J.M. Service Company, LLC falls in its industry

5,793 Heating, ventilation and air-c establishments

Safer than 78% of graded establishments in this industry, whose median TCR is 3.3.

Grade B

More dangerous than peersSafer than peers

Narrower to Massachusetts alone (the establishments it most directly competes with for workers and contracts): ranked #24 safest of 140 Heating, ventilation and air-c employers in Massachusetts.

J.M. Service Company, LLC (27 employees, TCR 1.5) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

J.M. Service Company, LLC has fewer employees than the Heating, ventilation and air-conditionin median and a lower injury rate than the industry's median TCR of 3.3. Workforce size and injury rate do not always move together within the same industry -- some of its smaller peers run higher rates than its larger ones, and vice versa.

Year-by-Year Safety Data

Year	TCR	DART	Injuries	Illnesses	Fatalities
2024	3.0	3.0	1	0	0
2022	0.0	0.0	0	0	0

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · MA · Braintree

5,793 Heating, ventilation and air-conditioning (HVAC) contractors employers nationwide with a credible TCR · 10,108 rated employers in Massachusetts with headcount on file · 95 employers in Braintree, MA · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel	Establishment	Place	Metric
NAICS-TCR	Dahme Mechanical Industries, Inc.	ARLINGTON HEIGHTS, IL	1.5 TCR
NAICS-TCR	Advanced Plumbing Systems	OCEANSIDE, CA	1.5 TCR
NAICS-TCR	Perfection Group, Inc., Louisville	LOUISVILLE, KY	1.5 TCR
NAICS-TCR	NEMSI-New London	WATERFORD, CT	1.5 TCR
STATE-SIZE	High Profile - Dorchester	BOSTON	27 FTE
STATE-SIZE	NAES Salem Harbor Station	SALEM	27 FTE
STATE-SIZE	NORTH ANDOVER-METHUEN-MA30	METHUEN	27 FTE
STATE-SIZE	TEWKSBURY-MA47	TEWKSBURY	27 FTE
CITY-NEAR	Atalian Global Services - New England	Braintree	777 FTE
CITY-NEAR	Haemonetics - Braintree	Braintree	606 FTE
CITY-NEAR	South Shore Plaza 036	Braintree	405 FTE
CITY-NEAR	Encompass Health Rehabilitation Hospital of Braintree LLC	Braintree	393 FTE
NAT-TCR	Manganaro Mid-Atlantic	Beltsville, MD	1.5 TCR
NAT-TCR	Mount Union IA	Mount Union, IA	1.5 TCR
NAT-TCR	York County Finance	Yorktown, VA	1.5 TCR
NAT-TCR	AL217 Alabama River Cellulose	Monroeville, AL	1.5 TCR
NAT-SIZE	001 Cottage Grove Animal Nutrition	Cottage Grove, WI	27 FTE
NAT-SIZE	Resort Vacations 6	Irving, TX	27 FTE
NAT-SIZE	Pomps Tire - Allen Park 214	Allen Park, MI	27 FTE
NAT-SIZE	TNK002	Knoxville, TN	27 FTE

Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →

Data Source: OSHA Injury Tracking Application (ITA), mandatory establishment-level injury/illness reports. Grades compare employer Total Case Rate (TCR) to BLS IIF industry benchmarks. Data covers years reported by this establishment: 2024, 2022. This is publicly available government data - not a legal determination of workplace conditions.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from official public datasets. See our methodology for details.