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

Mainstream Electrical, Heating, Cooling, Plumbing

Spokane Valley, WA · ~72 workers · 2 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
9.9
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

Mainstream Electrical, Heating, Cooling, Plumbing runs at 355% of its industry's injury rate - far more dangerous than the typical Heating, ventilation and air-conditioning (HVAC) contractors workplace, earning a grade F.

Mainstream Electrical, Heating, Cooling, Plumbing: 9.9 TCR = 355% of Heating, ventilation and air-conditioning (HVAC) contractors BLS 2.8 · 2y Form 300A (see methodology below)

Mainstream Electrical, Heating, Cooling, Plumbing safety composite

Mainstream Electrical, Heating, Cooling, Plumbing scores strongest on dart rate (safer than 80% of same-industry peers) and weakest on total case rate (tcr) (safer than 10%), 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

45/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 9.93 per 100 workers

Safer than 10% 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%).

Rising injury rate

Mainstream Electrical, Heating, Cooling, Plumbing: 9.3 → 10.5 TCR

Peak year 2024 @ 10.5 TCR · DART/TCR 0× in 2024

Mainstream Electrical, Heating, Cooling, Plumbing's TCR rose 1.2 from 9.3 in 2023 to 10.5 in 2024. In 2024, DART was 0× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 238220 · Spokane Valley, WA ABOVE-IND · SMALL

Grade F · TCR 9.9 · 355% of ind

  • DART 0.0 DART
  • RANK #119/145
  • PHOTO 20/20 Plumbing & Hea…
  • BOOK 2y book
  • INJ 14 inj
  • SIZE ~72 FTE

Nearest TCR peer: 20/20 Plumbing & Heating, Inc. (0.0 TCR gap)

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

Mainstream Electrical, Heating, Cooling, Plumbing in the TCR neighbourhood

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

TCR

What this shows Mainstream Electrical, Heating, Cooling, Plumbing averages 9.9 TCR (355% 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

Mainstream Electrical, Heating, Cooling, Plumbing TCR series: 2023=9.3 · 2024=10.5 · BLS 2.8

Where Mainstream Electrical, Heating, Cooling, Plumbing falls in its industry

5,793 Heating, ventilation and air-c establishments

Safer than 10% 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 #119 safest of 145 Heating, ventilation and air-c employers in Washington.

Mainstream Electrical, Heating, Cooling, Plumbing (72 employees, TCR 9.9) 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 Mainstream Electrical, Heating, Cooling, Plumbing
Mainstream Electrical, Heating, Cooling, Plumbing (72 employees, TCR 9.9) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

Mainstream Electrical, Heating, Cooling, Plumbing 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 10.5 0.0 7 0 0
2023 9.3 5.3 7 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · WA · Spokane Valley

5,793 Heating, ventilation and air-conditioning (HVAC) contractors employers nationwide with a credible TCR · 10,147 rated employers in Washington with headcount on file · 176 employers in Spokane Valley, 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 20/20 Plumbing & Heating, Inc. 9.9 TCR
NAICS-TCR 6002_14232 9.9 TCR
NAICS-TCR Standard Heating and Air Conditioning 9.9 TCR
NAICS-TCR Santa Barbara Roto-Rooter Inc 9.9 TCR
STATE-SIZE CSS Farms, LLC Pasco, WA Farm 72 FTE
STATE-SIZE Alaska Warrior 72 FTE
STATE-SIZE Othello 72 FTE
STATE-SIZE Washington Trails Association 72 FTE
CITY-NEAR Kaiser Aluminum - Trentwood 851 FTE
CITY-NEAR Kaiser Trentwood 829 FTE
CITY-NEAR Trentwood 777 FTE
CITY-NEAR MultiCare Valley Hospital 776 FTE
NAT-TCR Monsignor Bojnowski Manor 9.9 TCR
NAT-TCR Brookdale Mount Vernon Drive 9.9 TCR
NAT-TCR Txbro - Brownwood 9.9 TCR
NAT-TCR Western Dairy Transport-Ulysses 9.9 TCR
NAT-SIZE Paragon 72 FTE
NAT-SIZE Castelli Magnet LLC 72 FTE
NAT-SIZE Rick Stone Masonry, Inc. 72 FTE
NAT-SIZE Van Voorst Lumber 72 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. This is publicly available government data - not a legal determination of workplace conditions.
Data sourced from official public datasets. See our methodology for details.