Plumbing and heating contractors · Washington

MacDonald-Miller Facility Solutions, LLC

Seattle, WA · ~960 workers · 3 years of OSHA Injury Tracking Application data.

A
Excellent Safety Record
1.2
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

MacDonald-Miller Facility Solutions, LLC runs at 44% of its industry's injury rate - far safer than the typical Plumbing and heating contractors workplace, earning a grade A.

MacDonald-Miller Facility Solutions, LLC: 1.2 TCR = 44% of Plumbing and heating contractors BLS 2.8 · 3y Form 300A (see methodology below)

MacDonald-Miller Facility Solutions, LLC safety composite

MacDonald-Miller Facility Solutions, LLC scores strongest on total case rate (tcr) (safer than 83% 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).

C

66/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
B 1.23 per 100 workers

Safer than 83% of industry peers

DART rate
C 0.74 per 100 workers

Safer than 56% 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%).

MacDonald-Miller Facility Solutions, LLC held a steady TCR band

MacDonald-Miller Facility Solutions, LLC's TCR held near 0.2 from 1.3 in 2019 to 1.1 in 2024. Peak filing year was 2020 at 1.3 TCR. In 2024, DART was 0.6× this establishment's average TCR (severity share of cases).

2019=1.3 · 2020=1.3 · 2024=1.1

OSHA ITA Form 300A scorecard

Establishment book 238220 · Seattle, WA AT/BELOW-IND · MID

Grade A · TCR 1.2 · 44% of ind

  • DART 0.7 DART
  • RANK #15/145
  • PHOTO Charter Mechanical C…
  • BOOK 3y book
  • INJ 36 inj
  • SIZE ~960 FTE

Nearest TCR peer: Charter Mechanical Contractors Inc. (0.0 TCR gap)

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

MacDonald-Miller Facility Solutions, LLC in the TCR neighbourhood

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

TCR

What this shows MacDonald-Miller Facility Solutions, LLC averages 1.2 TCR (44% of the Plumbing and heating contractors BLS benchmark).

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

MacDonald-Miller Facility Solutions, LLC TCR series: 2019=1.3 · 2020=1.3 · 2024=1.1 · BLS 2.8

Where MacDonald-Miller Facility Solutions, LLC falls in its industry

5,793 Plumbing and heating contracto establishments

Safer than 83% of graded establishments in this industry, whose median TCR is 3.3.

More dangerous than peersSafer than peers

Narrower to Washington alone (the establishments it most directly competes with for workers and contracts): ranked #15 safest of 145 Plumbing and heating contracto employers in Washington.

MacDonald-Miller Facility Solutions, LLC (960 employees, TCR 1.2) 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 05001,0001,500 05101520 Average employees Total Case Rate MacDonald-Miller Facility Solutions, LLC
MacDonald-Miller Facility Solutions, LLC (960 employees, TCR 1.2) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

MacDonald-Miller Facility Solutions, LLC has more employees than the Plumbing and heating contractors 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 1.1 0.7 12 0 0
2020 1.3 1.0 14 0 0
2019 1.3 1.3 10 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · WA · Seattle

5,793 Plumbing and heating contractors employers nationwide with a credible TCR · 10,147 rated employers in Washington with headcount on file · 1,279 employers in Seattle, WA · 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 Charter Mechanical Contractors Inc. 1.2 TCR
NAICS-TCR JAMES L CAYTON ACCOCIATES INC 1.2 TCR
NAICS-TCR B&B Plumbing 1.2 TCR
NAICS-TCR Herbert S. Hiller, a division of The Hiller Companies, Inc. 1.2 TCR
STATE-SIZE Central Washington Health Services - Mares Campus 952 FTE
STATE-SIZE McGee Air Services - SEA 969 FTE
STATE-SIZE 547618-SEATTLE WA P&DC 951 FTE
STATE-SIZE Therapeutic Associates, Inc. 973 FTE
CITY-NEAR UW Seattle 32,378 FTE
CITY-NEAR The United States of America 25,000 FTE
CITY-NEAR Starz Entertainment 25,000 FTE
CITY-NEAR UW Medical Center - Montlake and NW 11,307 FTE
NAT-TCR Fontana Lithograph, Inc. 1.2 TCR
NAT-TCR Multimetal Products Corporation 1.2 TCR
NAT-TCR Valiant TMS 1.2 TCR
NAT-TCR Bi-Con Services 1.2 TCR
NAT-SIZE Florida Concrete Services 960 FTE
NAT-SIZE bioMerieux Inc. 960 FTE
NAT-SIZE 161275-Carol Stream Il P&Dc 960 FTE
NAT-SIZE Fresenius Kabi 960 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, 2020, 2019. This is publicly available government data - not a legal determination of workplace conditions.
Data sourced from official public datasets. See our methodology for details.