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

American Mechanical Services of Maryland, LLC

Laurel, MD · ~97 workers · 4 years of OSHA Injury Tracking Application data.

D
Poor Safety Record
3.6
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

American Mechanical Services of Maryland, LLC runs at 130% of its industry's injury rate - more dangerous than the typical Heating, ventilation and air-conditioning (HVAC) contractors workplace, earning a grade D.

American Mechanical Services of Maryland, LLC: 3.6 TCR = 130% of Heating, ventilation and air-conditioning (HVAC) contractors BLS 2.8 · 4y Form 300A (see methodology below)

American Mechanical Services of Maryland, LLC safety composite

American Mechanical Services of Maryland, LLC scores strongest on dart rate (safer than 53% of same-industry peers) and weakest on total case rate (tcr) (safer than 47%), 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).

D

50/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
D 3.63 per 100 workers

Safer than 47% of industry peers

DART rate
D 1 per 100 workers

Safer than 53% 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

−2.9

2021→2024

American Mechanical Services of Maryland, LLC injury rate improved

American Mechanical Services of Maryland, LLC's TCR fell 2.9 from 3.9 in 2021 to 1.0 in 2024. Peak filing year was 2022 at 6.6 TCR. In 2024, DART was 0.28× this establishment's average TCR (severity share of cases).

2021=3.9 · 2022=6.6 · 2023=3.1 · 2024=1.0

OSHA ITA Form 300A scorecard

Establishment book 238220 · Laurel, MD ABOVE-IND · SMALL

Grade D · TCR 3.6 · 130% of ind

  • DART 1.0 DART
  • RANK #74/121
  • PHOTO Hall Sheetmetal Work…
  • BOOK 4y book
  • INJ 14 inj
  • SIZE ~97 FTE

Nearest TCR peer: Hall Sheetmetal Works, Inc (0.0 TCR gap)

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American Mechanical Services of Maryland, LLC in the TCR neighbourhood

Average Total Case Rate among this establishment and nearest same-industry peers

TCR

What this shows American Mechanical Services of Maryland, LLC averages 3.6 TCR (130% of the Heating, ventilation and air-conditioning (HVAC) contractors BLS benchmark).

Source U.S. Department of Labor, OSHA Injury Tracking Application (Form 300A) As of 2026-08-25

American Mechanical Services of Maryland, LLC TCR series: 2021=3.9 · 2022=6.6 · 2023=3.1 · 2024=1 · BLS 2.8

Where American Mechanical Services of Maryland, LLC falls in its industry

5,793 Heating, ventilation and air-c establishments

Safer than 47% of graded establishments in this industry, whose median TCR is 3.3.

More dangerous than peersSafer than peers

Narrower to Maryland alone (the establishments it most directly competes with for workers and contracts): ranked #74 safest of 121 Heating, ventilation and air-c employers in Maryland.

American Mechanical Services of Maryland, LLC (97 employees, TCR 3.6) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3 2×2 strategic matrix plotting 30 entities by Average employees (X) and Total Case Rate (Y), with a crosshair dividing the plot into four quadrants. Larger & higher-riskSmaller & higher-riskLarger & saferSmaller & safer than peers 050100150200250 05101520 Average employees Total Case Rate American Mechanical Services of Maryland, LLC
American Mechanical Services of Maryland, LLC (97 employees, TCR 3.6) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

American Mechanical Services of Maryland, LLC has more employees than the Heating, ventilation and air-conditionin median and a higher 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 1.0 1.0 1 0 0
2023 3.1 1.0 3 0 0
2022 6.6 5.5 6 0 0
2021 3.9 1.0 4 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · MD · Laurel

5,793 Heating, ventilation and air-conditioning (HVAC) contractors employers nationwide with a credible TCR · 7,213 rated employers in Maryland with headcount on file · 125 employers in Laurel, MD · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel Establishment Metric
NAICS-TCR Hall Sheetmetal Works, Inc 3.6 TCR
NAICS-TCR Schadegg Mechanical, Inc. 3.6 TCR
NAICS-TCR MLP Plumbing & Mechanical, Inc 3.6 TCR
NAICS-TCR US175: Charleston, SC 210 - SG 3.6 TCR
STATE-SIZE D.R. Horton, Inc. - Capital 97 FTE
STATE-SIZE Airtron Mid Atlantic 97 FTE
STATE-SIZE Havtech Service Division, LLC - Columbia 97 FTE
STATE-SIZE NLP Enterprises, Inc. 97 FTE
CITY-NEAR BURTONSVILLE (MDBUR) 2,341 FTE
CITY-NEAR MDBUR - BURTONSVILLE 2,339 FTE
CITY-NEAR WSSC Water 1,668 FTE
CITY-NEAR Beltsville (Laurel) 1,661 FTE
NAT-TCR Sutliff Chevrolet Co. dba Turner Chevrolet 3.6 TCR
NAT-TCR Biloxi Service Center 3.6 TCR
NAT-TCR DeBrino Caulking Associates Inc 3.6 TCR
NAT-TCR Barclay Mechanical Services, Inc. 3.6 TCR
NAT-SIZE 24 - Mason City 97 FTE
NAT-SIZE B&B Specialties, Inc. 97 FTE
NAT-SIZE Little Sisters of the Poor - Jeanne Jugan Center 97 FTE
NAT-SIZE J & R Slaw, Inc. 97 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, 2021. This is publicly available government data - not a legal determination of workplace conditions.
Data sourced from official public datasets. See our methodology for details.