HVAC (heating, ventilation and air-conditioning) contractors · Massachusetts
Duggan Mechanical Services
Canton, MA · ~47 workers · 6 years of OSHA Injury Tracking Application data.
- D
- Poor Safety Record
- 4.8
- Avg TCR
- 2.8
- Industry avg
- 0
- Fatalities
The verdict
Duggan Mechanical Services runs at 171% of its industry's injury rate - more dangerous than the typical HVAC (heating, ventilation and air-conditioning) contractors workplace, earning a grade D.
Duggan Mechanical Services: 4.8 TCR = 171% of HVAC (heating, ventilation and air-conditioning) contractors BLS 2.8 · 6y Form 300A (see methodology below)
Duggan Mechanical Services safety composite
Duggan Mechanical Services scores strongest on dart rate (safer than 80% of same-industry peers) and weakest on total case rate (tcr) (safer than 36%), 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).
55/100
Percentile-weighted across 3 of 3 measures
- Total Case Rate (TCR)
- D 4.79 per 100 workers
Safer than 36% 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
Duggan Mechanical Services: 0.0 → 1.8 TCR
Peak year 2022 @ 13.5 TCR · DART/TCR 0× in 2024
Duggan Mechanical Services's TCR rose 1.8 from 0.0 in 2017 to 1.8 in 2024. Peak filing year was 2022 at 13.5 TCR. In 2024, DART was 0× this establishment's average TCR (severity share of cases).
OSHA ITA Form 300A scorecard
Establishment book 238220 · Canton, MA ABOVE-IND · SMALL
Grade D · TCR 4.8 · 171% of ind
- DART 0.0 DART
- RANK #92/140
- PHOTO Stanger Industries, …
- BOOK 6y book
- INJ 11 inj
- SIZE ~47 FTE
Nearest TCR peer: Stanger Industries, Inc (0.0 TCR gap)
Read with this employer → · Industry book → · Massachusetts employers → · Look up another →
Duggan Mechanical Services in the TCR neighbourhood
Average Total Case Rate among this establishment and nearest same-industry peers
- This site
Duggan Mechanical Services
4.8 TCR
- Stanger Indust
Stanger Industries, Inc
4.8 TCR
- ACT Perham
ACT Perham
4.8 TCR
- GHC Mechanical
GHC Mechanical, LLC
4.8 TCR
- Morris Jenkins
Morris Jenkins
4.8 TCR
What this shows Duggan Mechanical Services averages 4.8 TCR (171% of the HVAC (heating, ventilation and air-conditioning) contractors BLS benchmark).
Duggan Mechanical Services TCR series: 2017=0 · 2019=5.7 · 2020=5.8 · 2022=13.5 · 2023=2 · 2024=1.8 · BLS 2.8
Where Duggan Mechanical Services falls in its industry
5,793 HVAC (heating, ventilation and establishmentsSafer than 36% of graded establishments in this industry, whose median TCR is 3.3.
Narrower to Massachusetts alone (the establishments it most directly competes with for workers and contracts): ranked #92 safest of 140 HVAC (heating, ventilation and employers in Massachusetts.
Duggan Mechanical Services has fewer employees than the HVAC (heating, ventilation and air-condi 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 | 1.8 | 0.0 | 1 | 0 | 0 |
| 2023 | 2.0 | 2.0 | 1 | 0 | 0 |
| 2022 | 13.5 | 13.5 | 5 | 0 | 0 |
| 2020 | 5.8 | 0.0 | 2 | 0 | 0 |
| 2019 | 5.7 | 5.7 | 2 | 0 | 0 |
| 2017 | 0.0 | 0.0 | 0 | 0 | 0 |
OSHA ITA peer cross-reference
Establishment peer ledger
238220 · MA · Canton
5,793 HVAC (heating, ventilation and air-conditioning) contractors employers nationwide with a credible TCR · 10,108 rated employers in Massachusetts with headcount on file · 98 employers in Canton, MA · 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 | Stanger Industries, Inc | 4.8 TCR |
| NAICS-TCR | ACT Perham | 4.8 TCR |
| NAICS-TCR | GHC Mechanical, LLC | 4.8 TCR |
| NAICS-TCR | Morris Jenkins | 4.8 TCR |
| STATE-SIZE | Rockwell Roofing, Inc | 47 FTE |
| STATE-SIZE | Pioneer Valley Photovoltaics Cooperative, Inc | 47 FTE |
| STATE-SIZE | MONSON-MA23 | 47 FTE |
| STATE-SIZE | 855-NiSource-Westborough MA | 47 FTE |
| CITY-NEAR | Point32Health Canton | 4,420 FTE |
| CITY-NEAR | Organogenesis (Campus: 85, 65, and 150 Dan Rd Canton Locations) | 855 FTE |
| CITY-NEAR | Organogenesis (Campus: 85, 65, and 150 Dan Rd Canton Location's) | 631 FTE |
| CITY-NEAR | E.M. Duggan, Inc. | 432 FTE |
| NAT-TCR | ABF Freight 064 | 4.8 TCR |
| NAT-TCR | Steelville Senior Living | 4.8 TCR |
| NAT-TCR | Johnan America, Inc. | 4.8 TCR |
| NAT-TCR | Ord Cst | 4.8 TCR |
| NAT-SIZE | ABF Freight 219 | 47 FTE |
| NAT-SIZE | ABF Freight 139 | 47 FTE |
| NAT-SIZE | Triangle Construction Co., Inc | 47 FTE |
| NAT-SIZE | Ocotillo Service Center | 47 FTE |
Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →
Read our methodology - how this data is sourced, computed, and verified.