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

Mechanical Systems & Services, Inc/MSS Solutions, LLC

Name: Mechanical Systems & Services, Inc/MSS Solutions, LLC Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Charlotte, NC · ~500 workers · 8 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

A
Excellent Safety Record: 1.3
Avg TCR: 2.8
Industry avg: 0
Fatalities

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The verdict

Mechanical Systems & Services, Inc/MSS Solutions, LLC runs at 47% of its industry's injury rate - far safer than the typical Heating, ventilation and air-conditioning (HVAC) contractors workplace, earning a grade A.

Mechanical Systems & Services, Inc/MSS Solutions, LLC: 1.3 TCR = 47% of Heating, ventilation and air-conditioning (HVAC) contractors BLS 2.8 · 8y Form 300A (see methodology below)

Mechanical Systems & Services, Inc/MSS Solutions, LLC safety composite

Mechanical Systems & Services, Inc/MSS Solutions, LLC scores strongest on total case rate (tcr) (safer than 81% of same-industry peers) and weakest on fatalities (safer than 51%), 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).

66/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): B 1.31 per 100 workers

Safer than 81% of industry peers
DART rate: C 0.29 per 100 workers

Safer than 60% 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%).

TCR Δ

−0.6

2016→2024

Mechanical Systems & Services, Inc/MSS Solutions, LLC injury rate improved

Mechanical Systems & Services, Inc/MSS Solutions, LLC's TCR fell 0.6 from 1.4 in 2016 to 0.9 in 2024. Peak filing year was 2019 at 1.9 TCR. In 2024, DART was 0.22× this establishment's average TCR (severity share of cases).

2016=1.4 · 2017=1.7 · 2018=1.4 · 2019=1.9 · 2020=1.5 · 2022=0.7 · 2023=0.9 · 2024=0.9

OSHA ITA Form 300A scorecard

Establishment book 238220 · Charlotte, NC AT/BELOW-IND · MID

Grade A · TCR 1.3 · 47% of ind

DART 0.3 DART
RANK #47/212
PHOTO Byrd Maintenance Ser…
BOOK 8y book
INJ 48 inj
SIZE ~500 FTE

Nearest TCR peer: Byrd Maintenance Services Inc. (0.0 TCR gap)

Read with this employer → · Industry book → · North Carolina employers → · Look up another →

This site

1.3
Byrd Maintenan

1.3
Smith Service

1.3
Herman Goldner

1.3
0F37 - APPLETO

1.3

What this shows Mechanical Systems & Services, Inc/MSS Solutions, LLC averages 1.3 TCR (47% of the Heating, ventilation and air-conditioning (HVAC) contractors BLS benchmark).

Mechanical Systems & Services, Inc/MSS Solutions, LLC TCR series: 2016=1.4 · 2017=1.7 · 2018=1.4 · 2019=1.9 · 2020=1.5 · 2022=0.7 · 2023=0.9 · 2024=0.9 · BLS 2.8

Where Mechanical Systems & Services, Inc/MSS Solutions, LLC falls in its industry

5,793 Heating, ventilation and air-c establishments

Safer than 81% of graded establishments in this industry, whose median TCR is 3.3.

Grade A

More dangerous than peersSafer than peers

Narrower to North Carolina alone (the establishments it most directly competes with for workers and contracts): ranked #47 safest of 212 Heating, ventilation and air-c employers in North Carolina.

Mechanical Systems & Services, Inc/MSS Solutions, LLC (500 employees, TCR 1.3) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

Mechanical Systems & Services, Inc/MSS Solutions, LLC has more 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
2024	0.9	0.3	6	0
2023	0.9	0.5	6	0
2022	0.7	0.7	4	0
2020	1.5	0.9	7	0
2019	1.9	0.9	8	0
2018	1.4	1.0	6	0
2017	1.7	0.7	7	0
2016	1.4	0.0	4	1

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · NC · Charlotte

5,793 Heating, ventilation and air-conditioning (HVAC) contractors employers nationwide with a credible TCR · 16,981 rated employers in North Carolina with headcount on file · 2,058 employers in Charlotte, NC · 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	Byrd Maintenance Services Inc.	DECATUR, AL	1.3 TCR
NAICS-TCR	Smith Service Corporation	DECATUR, AL	1.3 TCR
NAICS-TCR	Herman Goldner Co., Inc.	PHILADELPHIA, PA	1.3 TCR
NAICS-TCR	0F37 - APPLETON FIRE	APPLETON, WI	1.3 TCR
STATE-SIZE	HHG Lenoir Upholstery Plant	LENOIR	500 FTE
STATE-SIZE	WHG-Women's Hospital of Greensboro	GREENSBORO	500 FTE
STATE-SIZE	Wilkes Medical Center	N. WILKESBORO	500 FTE
STATE-SIZE	Carvana Concord	CONCORD	499 FTE
CITY-NEAR	1101-Carolinas Medical Center (1101)	Charlotte	8,444 FTE
CITY-NEAR	0001-Carolinas Medical Center	Charlotte	8,032 FTE
CITY-NEAR	4795-AA-CLT-CHARLOTTE-CLT-TRML	Charlotte	7,295 FTE
CITY-NEAR	Novant Health Presbyterian Medical Center	Charlotte	4,973 FTE
NAT-TCR	Henkels & McCoy, Massachusetts - Oxford	Oxford, MA	1.3 TCR
NAT-TCR	Latrobe Window Cleaning Co., Inc.	Loyalhanna, PA	1.3 TCR
NAT-TCR	Miller Insulation Salt Lake Branch	N. Salt Lake, UT	1.3 TCR
NAT-TCR	Fives Cincinnati	Hebron, KY	1.3 TCR
NAT-SIZE	TCCo-NorCal	Oakland, CA	500 FTE
NAT-SIZE	Treasure Chest Casino	Kenner, LA	500 FTE
NAT-SIZE	The Beaver Excavating Company	Canton, OH	500 FTE
NAT-SIZE	American Battle Monuments Commission HQ	Arlington, VA	500 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, 2023, 2022, 2020, 2019, 2018, 2017, 2016. 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.