Insulating glass, sealed units, made from purchased glass · California

Thermalsun Glass

Santa Rosa, CA · ~42 workers · 2 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
7.4
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

Thermalsun Glass runs at 225% of its industry's injury rate - far more dangerous than the typical Insulating glass, sealed units, made from purchased glass workplace, earning a grade F.

Thermalsun Glass: 7.4 TCR = 225% of Insulating glass, sealed units, made from purchased glass BLS 3.3 · 2y Form 300A (see methodology below)

Thermalsun Glass safety composite

Thermalsun Glass scores strongest on fatalities (safer than 51% of same-industry peers) and weakest on total case rate (tcr) (safer than 16%), 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).

F

26/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 7.44 per 100 workers

Safer than 16% of industry peers

DART rate
F 4.74 per 100 workers

Safer than 19% 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

−5.4

2017→2018

Thermalsun Glass injury rate improved

Thermalsun Glass's TCR fell 5.4 from 10.1 in 2017 to 4.7 in 2018. Peak filing year was 2017 at 10.1 TCR. In 2018, DART was 0.64× this establishment's average TCR (severity share of cases).

2017=10.1 · 2018=4.7

OSHA ITA Form 300A scorecard

Establishment book 327215 · Santa Rosa, CA ABOVE-IND · SMALL

Grade F · TCR 7.4 · 225% of ind

  • DART 4.7 DART
  • RANK #29/34
  • PHOTO Guardian VIG
  • BOOK 2y book
  • INJ 6 inj
  • SIZE ~42 FTE

Nearest TCR peer: Guardian VIG (0.0 TCR gap)

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

Thermalsun Glass in the TCR neighbourhood

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

TCR

What this shows Thermalsun Glass averages 7.4 TCR (225% of the Insulating glass, sealed units, made from purchased glass BLS benchmark).

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

Thermalsun Glass TCR series: 2017=10.1 · 2018=4.7 · BLS 3.3

Where Thermalsun Glass falls in its industry

441 Insulating glass, sealed units establishments

Safer than 16% of graded establishments in this industry, whose median TCR is 3.3.

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #29 safest of 34 Insulating glass, sealed units employers in California.

Thermalsun Glass (42 employees, TCR 7.4) among 29 same-industry peers, split at the industry median of 94 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 0100200300400500 051015 Average employees Total Case Rate Thermalsun Glass
Thermalsun Glass (42 employees, TCR 7.4) among 29 same-industry peers, split at the industry median of 94 employees and a TCR of 3.3

Thermalsun Glass has fewer employees than the Insulating glass, sealed units, made fro 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
2018 4.7 4.7 2 0 0
2017 10.1 2.5 4 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

327215 · CA · Santa Rosa

441 Insulating glass, sealed units, made from purchased glass employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 344 employers in Santa Rosa, CA · 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 Guardian VIG 7.4 TCR
NAICS-TCR Glass Division 7.4 TCR
NAICS-TCR SIGCO, Westbrook (Spiller) 7.5 TCR
NAICS-TCR JE Berkowitz 7.3 TCR
STATE-SIZE Quad H 42 FTE
STATE-SIZE CJJ Farming, Inc 42 FTE
STATE-SIZE Oceano Packing Company LLC 42 FTE
STATE-SIZE Connell Ranch 42 FTE
CITY-NEAR California Department of Transportation Facility 543 2,891 FTE
CITY-NEAR 2032-02121251 2,209 FTE
CITY-NEAR 2004-00001480 1,970 FTE
CITY-NEAR CA720 SANTA ROSA MEMORIAL HOSPITAL HR 1,806 FTE
NAT-TCR SAT - Airport United Airlines Offices 7.4 TCR
NAT-TCR Hope House Foundation 7.4 TCR
NAT-TCR Lumberton Center (Nclum) 7.4 TCR
NAT-TCR Lake Delton (Wilak) 7.4 TCR
NAT-SIZE Corpus Christi North Beach Terminal 42 FTE
NAT-SIZE Virtua Obstetrics & Gynecology - Medford 42 FTE
NAT-SIZE Fallsburg Day Program 42 FTE
NAT-SIZE Cstk Okc 42 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: 2018, 2017. 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.