Plumbing and heating contractors · New Hampshire
Denron Plumbing & HVAC, LLC
Manchester, NH · ~170 workers · 6 years of OSHA Injury Tracking Application data.
- F
- Failing Safety Record
- 11.0
- Avg TCR
- 2.8
- Industry avg
- 0
- Fatalities
The verdict
Denron Plumbing & HVAC, LLC runs at 392% of its industry's injury rate - far more dangerous than the typical Plumbing and heating contractors workplace, earning a grade F.
Denron Plumbing & HVAC, LLC: 11.0 TCR = 392% of Plumbing and heating contractors BLS 2.8 · 6y Form 300A (see methodology below)
Denron Plumbing & HVAC, LLC safety composite
Denron Plumbing & HVAC, LLC scores strongest on fatalities (safer than 51% of same-industry peers) and weakest on dart rate (safer than 5%), 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).
18/100
Percentile-weighted across 3 of 3 measures
- Total Case Rate (TCR)
- F 10.97 per 100 workers
Safer than 8% of industry peers
- DART rate
- F 9.72 per 100 workers
Safer than 5% 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%).
Denron Plumbing & HVAC, LLC held a steady TCR band
Denron Plumbing & HVAC, LLC's TCR held near 0.3 from 11.1 in 2019 to 11.5 in 2024. Peak filing year was 2022 at 14.5 TCR. In 2024, DART was 0.89× this establishment's average TCR (severity share of cases).
2019=11.1 · 2020=7.7 · 2021=7.2 · 2022=14.5 · 2023=13.8 · 2024=11.5
OSHA ITA Form 300A scorecard
Establishment book 238220 · Manchester, NH ABOVE-IND · MID
Grade F · TCR 11.0 · 392% of ind
- DART 9.7 DART
- RANK #27/31
- PHOTO Gateway Air Conditio…
- BOOK 6y book
- INJ 107 inj
- SIZE ~170 FTE
Nearest TCR peer: Gateway Air Conditioning & Sheet Metal Co., Inc. (0.0 TCR gap)
Read with this employer → · Industry book → · New Hampshire employers → · Look up another →
Denron Plumbing & HVAC, LLC in the TCR neighbourhood
Average Total Case Rate among this establishment and nearest same-industry peers
- This site
Denron Plumbing & HVAC, LLC
11 TCR
- Gateway Air Co
Gateway Air Conditioning & Sheet Metal Co., Inc.
11 TCR
- Pacific West I
Pacific West Industries, Inc.
11 TCR
- WFS_TMP
WFS_TMP
11 TCR
- Thomson, Inc.
Thomson, Inc.
10.9 TCR
What this shows Denron Plumbing & HVAC, LLC averages 11.0 TCR (392% of the Plumbing and heating contractors BLS benchmark).
Denron Plumbing & HVAC, LLC TCR series: 2019=11.1 · 2020=7.7 · 2021=7.2 · 2022=14.5 · 2023=13.8 · 2024=11.5 · BLS 2.8
Where Denron Plumbing & HVAC, LLC falls in its industry
5,793 Plumbing and heating contracto establishmentsSafer than 8% of graded establishments in this industry, whose median TCR is 3.3.
Narrower to New Hampshire alone (the establishments it most directly competes with for workers and contracts): ranked #27 safest of 31 Plumbing and heating contracto employers in New Hampshire.
Denron Plumbing & HVAC, LLC has more employees than the Plumbing and heating contractors 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 | 11.5 | 9.7 | 26 | 0 | 0 |
| 2023 | 13.8 | 11.9 | 22 | 0 | 0 |
| 2022 | 14.5 | 9.8 | 26 | 2 | 0 |
| 2021 | 7.2 | 5.6 | 9 | 0 | 0 |
| 2020 | 7.7 | 7.7 | 9 | 0 | 0 |
| 2019 | 11.1 | 8.2 | 15 | 0 | 0 |
OSHA ITA peer cross-reference
Establishment peer ledger
238220 · NH · Manchester
5,793 Plumbing and heating contractors employers nationwide with a credible TCR · 2,718 rated employers in New Hampshire with headcount on file · 253 employers in Manchester, NH · 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 | Gateway Air Conditioning & Sheet Metal Co., Inc. | 11.0 TCR |
| NAICS-TCR | Pacific West Industries, Inc. | 11.0 TCR |
| NAICS-TCR | WFS_TMP | 11.0 TCR |
| NAICS-TCR | Thomson, Inc. | 10.9 TCR |
| STATE-SIZE | ARCH Medical Solutions | 170 FTE |
| STATE-SIZE | 2681 | 170 FTE |
| STATE-SIZE | Administrative Office | 170 FTE |
| STATE-SIZE | Index Packaging Inc. | 169 FTE |
| CITY-NEAR | Point32Health Manchester | 4,440 FTE |
| CITY-NEAR | Elliot Hospital | 2,745 FTE |
| CITY-NEAR | Catholic Medical Center | 2,086 FTE |
| CITY-NEAR | 15966 | 1,154 FTE |
| NAT-TCR | Grand Rapids Sales Branch | 11.0 TCR |
| NAT-TCR | 1131 - St Petersburg Gateway | 11.0 TCR |
| NAT-TCR | 2325 - Haverhill | 11.0 TCR |
| NAT-TCR | County Club of La Cholla | 11.0 TCR |
| NAT-SIZE | Tuscaloosa | 170 FTE |
| NAT-SIZE | Auria Albemarle | 170 FTE |
| NAT-SIZE | Sealevel Construction Inc | 170 FTE |
| NAT-SIZE | Grand Rapids Branch | 170 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.