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

Tri-State Home Services, LLC

Frederick, MD · ~77 workers · 6 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
6.0
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

Tri-State Home Services, LLC runs at 213% of its industry's injury rate - far more dangerous than the typical Heating, ventilation and air-conditioning (HVAC) contractors workplace, earning a grade F.

Tri-State Home Services, LLC: 6.0 TCR = 213% of Heating, ventilation and air-conditioning (HVAC) contractors BLS 2.8 · 6y Form 300A (see methodology below)

Tri-State Home Services, LLC safety composite

Tri-State Home Services, LLC scores strongest on dart rate (safer than 80% of same-industry peers) and weakest on total case rate (tcr) (safer than 27%), 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

52/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 5.95 per 100 workers

Safer than 27% of industry peers

DART rate
B 0 per 100 workers

Safer than 80% 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

−4.1

2016→2021

Tri-State Home Services, LLC injury rate improved

Tri-State Home Services, LLC's TCR fell 4.1 from 4.1 in 2016 to 0.0 in 2021. Peak filing year was 2018 at 14.3 TCR. In 2021, DART was 0× this establishment's average TCR (severity share of cases).

2016=4.1 · 2017=1.4 · 2018=14.3 · 2019=4.2 · 2020=11.7 · 2021=0.0

OSHA ITA Form 300A scorecard

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

Grade F · TCR 6.0 · 213% of ind

  • DART 0.0 DART
  • RANK #94/121
  • PHOTO Al Terry Plumbing & …
  • BOOK 6y book
  • INJ 18 inj
  • SIZE ~77 FTE

Nearest TCR peer: Al Terry Plumbing & Heating (0.0 TCR gap)

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

Tri-State Home Services, LLC in the TCR neighbourhood

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

TCR

What this shows Tri-State Home Services, LLC averages 6.0 TCR (213% 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

Tri-State Home Services, LLC TCR series: 2016=4.1 · 2017=1.4 · 2018=14.3 · 2019=4.2 · 2020=11.7 · 2021=0 · BLS 2.8

Where Tri-State Home Services, LLC falls in its industry

5,793 Heating, ventilation and air-c establishments

Safer than 27% 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 #94 safest of 121 Heating, ventilation and air-c employers in Maryland.

Tri-State Home Services, LLC (77 employees, TCR 6.0) 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 Tri-State Home Services, LLC
Tri-State Home Services, LLC (77 employees, TCR 6.0) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

Tri-State Home Services, 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
2021 0.0 0.0 0 0 0
2020 11.7 6.5 9 0 0
2019 4.2 1.1 4 0 0
2018 14.3 14.3 1 0 0
2017 1.4 1.4 1 0 0
2016 4.1 1.4 3 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · MD · Frederick

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 · 267 employers in Frederick, 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 Al Terry Plumbing & Heating 6.0 TCR
NAICS-TCR EAST CAROLINA MECHANICAL, LLC 6.0 TCR
NAICS-TCR Martin Mechanical 6.0 TCR
NAICS-TCR Modern-Air Conditioning Co. 6.0 TCR
STATE-SIZE Bradshaw Construction Corporation 77 FTE
STATE-SIZE VBS - DCX 77 FTE
STATE-SIZE Atlas Foundations of Washington LLC 77 FTE
STATE-SIZE Westland Printers 77 FTE
CITY-NEAR MD-03 4,250 FTE
CITY-NEAR AstraZeneca Frederick Manufacturing Center 775 FTE
CITY-NEAR AstraZeneca Frederick Manufacturing 711 FTE
CITY-NEAR Thermo Fisher Scientific Frederick, MD (BID - Executive Way) 568 FTE
NAT-TCR Clovis Community Medical Center EM 6.0 TCR
NAT-TCR South Lewis SH OPCO, LLC 6.0 TCR
NAT-TCR Mcgill Brothers 6.0 TCR
NAT-TCR 4818-KYOB 6.0 TCR
NAT-SIZE American Beverage Corporation 77 FTE
NAT-SIZE Ball Metalpack - Deforest, WI 77 FTE
NAT-SIZE Edgewood ParkWood Place 77 FTE
NAT-SIZE US009: Birmingham 205 - SG 77 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: 2021, 2020, 2019, 2018, 2017, 2016. This is publicly available government data - not a legal determination of workplace conditions.
Data sourced from official public datasets. See our methodology for details.