HVAC Technician Injury Rate and Fatalities: How Dangerous Is HVAC Work? (BLS 2023-2024 Data)

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The HVAC technician injury rate is 214.5 lost-time cases per 10,000 workers, second of six building trades

On the measure BLS publishes by occupation, HVAC mechanics lose time to injury at 2.48 times the all-occupation rate and 2.22 times the rate for electricians. Only construction laborers rank higher among the six trades compared here.

DAFW and DART rates: A days-away-from-work (DAFW) case is an injury or illness serious enough that the worker missed at least one scheduled day after the day of injury. DART adds cases that ended in restricted duty or a job transfer. BLS reports both per 10,000 full-time workers, calculated as cases / hours worked x 20,000,000. The survey covers private-industry wage and salary workers and leaves out the self-employed.

In the 2023-2024 Survey of Occupational Injuries and Illnesses, heating, air conditioning and refrigeration mechanics and installers (SOC 49-9021) had a DAFW rate of 214.5 per 10,000 full-time workers, against 86.6 for all occupations (BLS SOII Table R100). Their DART rate was 330.3, against 146.9 for electricians.

Construction laborers (217.8) are the only trade in this comparison with a higher DAFW rate. Carpenters (165.2), roofers (161.6), plumbers, pipefitters and steamfitters (144.5) and electricians (96.6) all sit lower. The HVAC rate is 1.33 times the roofer rate, which runs against the usual assumption that roofing is the more injury-prone trade on every measure.

In plain terms, 214.5 per 10,000 means about one lost-time case per 47 full-time HVAC mechanics per year, or 2.1 cases per 100 full-time workers. Private employers reported 14,230 HVAC DAFW cases across 2023 and 2024, about 7,115 a year (BLS SOII Table R12).

What it means for an owner: at the occupation average, a contractor with 47 full-time technicians would log about one lost-time case a year, and a smaller shop would go several years between cases, so a short clean record says less than a long one.

Cuts, falls and lifting cause most lost-time HVAC injuries

Contact with objects and equipment caused 32.3% of HVAC DAFW cases in 2023-2024, falls 27.5% and overexertion 22.9%. Cuts and lacerations are 20.4% of HVAC lost-time cases, roughly double their 9.8% share across all occupations.

Of the 14,230 HVAC DAFW cases in 2023-2024, 4,590 came from contact incidents (struck by, caught in, or contact with objects, equipment or other people), 3,910 from falls, slips and trips, and 3,260 from overexertion (BLS SOII Table R12). Falls to a lower level, the category that includes falls from ladders and roofs, were 1,860 cases or 13.1%.

The fall-to-lower-level rate for HVAC mechanics was 28.0 per 10,000 full-time workers, 6.8 times the all-occupation rate of 4.1. Transportation incidents ran at 18.7, 4.3 times the all-occupation rate, which fits a job built around driving between service calls.

By nature of injury, sprains, strains and tears were the largest group at 4,220 cases (29.7%), followed by cuts, lacerations and punctures at 2,900 (20.4%) and fractures at 1,310 (9.2%) (BLS SOII Table R9). Hands alone accounted for 2,840 cases, 20.0% of the total.

Recovery is slower than average. The median HVAC DAFW case kept the worker away for 10 days in 2023-2024, against 8 for all occupations, and 4,910 HVAC cases (34.5%) lasted 31 days or more (BLS SOII Table R66).

What it means for an owner: contact injuries and overexertion together account for more HVAC lost-time cases than falls do, so a safety record built only around ladders misses most of the cases that drive days away.

Lost-time HVAC injuries fell 22.9% from 2017, with a 2020 spike

The HVAC DAFW rate dropped from 278.1 in 2017 to 214.5 in 2023-2024 while the all-occupation rate barely moved. The path was uneven, and the 2020 to 2022 figures carry COVID-19 illness cases.

Between 2017 and 2023-2024 the HVAC DAFW rate fell 22.9%, while the all-occupation rate fell 3.1%, from 89.4 to 86.6 (BLS SOII Table R100, 2017 to 2023-2024 files).

What it means for an owner: the 2023-2024 rate is the cleanest recent benchmark; comparing a company's own log against 2020 or 2021-2022 flatters any business that had few COVID cases.

An average of 30.5 HVAC mechanics died at work each year from 2019 to 2024

BLS counted 33 HVAC mechanic deaths in 2024 and 409 from 2011 to 2024. Falls caused 142 of the 409, or 34.7%.

The Census of Fatal Occupational Injuries recorded 33 fatal work injuries to HVAC mechanics and installers in 2024: 11 from falls, slips and trips, 10 from transportation incidents and 9 from exposure to harmful substances or environments (BLS CFOI Table A-5, 2024). The 2023 count was 32.

Across 2011 to 2022, the CFOI database records at least 47 HVAC mechanic deaths from exposure to electricity, 13.7% of the 344 deaths in those years (BLS CFOI flat files). For electricians the electricity share was 34.1% (295 of 864). Transportation incidents caused at least 80 HVAC deaths, 23.3%.

What it means for an owner: falls, vehicles and electricity account for most HVAC deaths in the BLS records, while heat does not appear in the published occupation counts at all.

HVAC death rates run about twice the all-worker rate but below electricians over six years

The 2024 HVAC fatal rate was 6.7 per 100,000 full-time-equivalent workers, 2.03 times the 3.3 rate for all workers. Pooled over 2019 to 2024, our computed HVAC rate of 6.5 sits below electricians (7.2) and carpenters (7.3).

BLS publishes an hours-based fatal rate for HVAC mechanics each year: 6.8 in 2019, 5.1 in 2020, 9.6 in 2021, 5.0 in 2022, 5.9 in 2023 and 6.7 in 2024 (BLS CFOI hours-based rates). The 2024 margin of error was 0.71, so single-year moves of one point are within noise for a group that works about 1,000 million hours a year.

Pooling six years removes much of that noise. Weighting each year's published rate by its hours gives 6.5 for HVAC mechanics, 7.2 for electricians, 5.9 for pipelayers and plumbers, 7.3 for carpenters, 15.4 for construction laborers, 53.0 for roofers and 3.5 for all workers.

So, is HVAC more dangerous than electrical work? On lost-time injuries, yes: 2.22 times the electrician rate. On deaths, the six-year pooled rate is 0.7 per 100,000 lower for HVAC, even though 2024 alone shows HVAC higher (6.7 against 5.3).

Falls are where HVAC deaths outpace electricians and plumbers

Our computed 2019 to 2024 fall death rate for HVAC mechanics is 2.14 per 100,000 full-time-equivalent workers, 3.6 times the all-worker rate and above electricians (1.95). BLS does not publish fall death rates by occupation.

HVAC mechanics had 61 fatal falls from 2019 to 2024 (BLS CFOI Table A-5, 2019 to 2024 files) over 5,700 million hours worked. Dividing deaths by hours and scaling to 100,000 full-time workers (2,000 hours each) gives 2.14. The same method gives 1.95 for electricians, at least 0.85 for pipelayers and plumbers, 4.17 for carpenters, 5.29 for construction laborers and 0.59 for all workers.

Falls caused 33.3% of HVAC mechanic deaths from 2019 to 2024. Roofers remain in a class of their own at 43.83 fall deaths per 100,000, 20.5 times the HVAC figure.

What it means for an owner: per hour worked, the risk of a fatal fall in HVAC work is in the same range as for electricians and well above the all-worker level, which matters for a business with a large share of rooftop commercial work.

Plumbing and HVAC contractors as an industry: 3.0 recordable cases per 100 workers in 2024

At the industry level, which counts every employee of plumbing and HVAC contractors including office staff, the 2024 recordable rate was 1.3 times the private-industry average. BLS counted 75 deaths in the industry in 2024.

Plumbing, heating, and air-conditioning contractors (NAICS 23822) recorded 3.0 injury and illness cases per 100 full-time workers in 2024, against 2.3 for all private industry (BLS SOII Table 1, 2024). The industry DAFW rate was 1.1 per 100. The recordable rate was 3.7 in 2017, an 18.9% decline.

CFOI counted 75 fatal work injuries in NAICS 23822 in 2024, including 23 falls (30.7%), 22 exposures to harmful substances or environments and 17 transportation incidents (BLS CFOI Table A-1, 2024). The residential segment (NAICS 238221) had 20 deaths and the nonresidential segment (238222) had 19. From 2020 to 2024 the industry total was 353.

Industry figures combine plumbers with HVAC workers and include every occupation the contractors employ, so they are lower than the occupation rates above and should not be compared with them directly. Trade press coverage of the 75 deaths (ACHR News) uses this industry series.

Using the benchmark in your own business

The BLS formula lets any HVAC company compute its own DAFW rate and compare it with 214.5. A pending federal heat rule is the main regulatory change in view.

To compare a company with the occupation, divide the number of DAFW cases on the OSHA 300 log by total hours worked by technicians and multiply by 20,000,000. A result well under 214.5 per 10,000 is a better-than-occupation record for the same kind of work, and it gives a company's injury history a public yardstick.

OSHA published a proposed standard, Heat Injury and Illness Prevention in Outdoor and Indoor Work Settings, at 89 FR 70698 on 30 August 2024 (Federal Register). It would require covered employers, including construction, to write a plan to evaluate and control heat hazards. OSHA held an informal hearing from June 16 to July 2, 2025, and extended post-hearing comments by 30 days to October 30, 2025 (Federal Register, 25 September 2025). In a Federal Register search on 2 November 2026, the newest document on the rule was that September 2025 extension; no final rule appeared.

For owners weighing an exit, the main guide to selling an HVAC business covers the sale process; this report stays on the safety record itself.

Key findings

1. HVAC mechanics and installers had 214.5 DAFW cases per 10,000 full-time workers in the United States in 2023-2024 (BLS SOII Table R100).^[9]
2. The HVAC DART rate was 330.3 per 10,000 full-time workers in 2023-2024, 2.25 times the electrician rate of 146.9.^[9]
3. Private employers reported 14,230 HVAC DAFW cases across 2023 and 2024, 0.78% of all private-industry DAFW cases.^[10]
4. Falls to a lower level caused HVAC DAFW cases at 28.0 per 10,000 full-time workers in 2023-2024, 6.8 times the all-occupation rate of 4.1.^[9]
5. Cuts, lacerations and punctures were 20.4% of HVAC DAFW cases in 2023-2024, against 9.8% for all occupations.^[25]
6. The median HVAC DAFW case lasted 10 days in 2023-2024, and 34.5% lasted 31 days or more.^[11][10]
7. BLS recorded 33 HVAC mechanic deaths in 2024: 11 falls, 10 transportation incidents and 9 exposures to harmful substances or environments.^[1]
8. From 2011 to 2024, 409 HVAC mechanics died at work in the United States, an average of 29.2 a year.^[6][3][1]
9. Exposure to electricity caused at least 47 of 344 HVAC mechanic deaths from 2011 to 2022 (13.7%), against 34.1% of electrician deaths.^[6]
10. The HVAC fatal rate was 6.7 per 100,000 FTE workers in 2024 and ranged from 5.0 (2022) to 9.6 (2021) over 2019 to 2024.^[2][5]
11. Pooled over 2019 to 2024, HVAC mechanics died at 6.5 per 100,000 FTE, electricians at 7.2 and all workers at 3.5 (computed).^[2][5]
12. HVAC mechanics' 2019 to 2024 fall death rate was 2.14 per 100,000 FTE, against 1.95 for electricians and 0.59 for all workers (computed).^{[1][3][4][2][5]}
13. Plumbing, heating, and air-conditioning contractors recorded 3.0 injury and illness cases per 100 full-time workers in 2024, 1.3 times the private-industry rate of 2.3.^[15]
14. CFOI counted 75 fatal injuries in plumbing, heating, and air-conditioning contracting (NAICS 23822) in 2024, 23 of them falls.^[7]

Summary for decision makers

• HVAC mechanics had a DAFW rate of 214.5 per 10,000 full-time workers in 2023-2024, 2.48 times the 86.6 rate for all occupations (BLS SOII).
• Among six building trades, only construction laborers (217.8) had a higher DAFW rate; HVAC ran 2.22 times the electrician rate and 1.33 times the roofer rate.
• Contact with objects and equipment caused 32.3% of HVAC lost-time cases, falls 27.5% and overexertion 22.9% in 2023-2024.
• BLS counted 33 HVAC mechanic deaths in 2024 and 409 from 2011 to 2024; falls caused 34.7% of those 409 deaths.
• The 2024 HVAC fatal rate was 6.7 per 100,000 FTE, 2.03 times the all-worker rate; pooled over 2019 to 2024 it was 6.5, below electricians at 7.2.
• Our computed 2019 to 2024 fall death rate for HVAC mechanics is 2.14 per 100,000 FTE, above electricians (1.95) and 3.6 times all workers (0.59).
• The HVAC DAFW rate fell 22.9% from 2017 to 2023-2024, against a 3.1% fall for all occupations.

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Reproduce this analysis

Every figure comes from the files below. The scripts that pulled and computed them are kept with the report and can be re-run.

Data quality and exclusions

• BLS SOII tables print each single-occupation group twice (for example 49-9020 and 49-9021 with identical values); 1 duplicate row per occupation per case type was dropped so nothing is double counted.
• CFOI and SOII dashes were coded as not published: 3 HVAC electricity years (2019, 2020, 2022) and 1 HVAC transportation year (2022) in the fw database, and the 2023 fall count for pipelayers and plumbers in Table A-5. Sums that include those years are labelled floors.
• The 2016 R100 file uses a split header layout that our parser does not read reliably, so the trend starts in 2017 (1 file excluded).
• Two older BLS workbooks (2017 Summary Table 1, 2017 R100) report a wrong sheet dimension; they were re-read in full mode and checked against the printed HVAC and private-industry rows.
• The 2019 CFOI Table A-1 has no row for NAICS 23822, and the 2017 and 2018 A-1 files no longer resolve on bls.gov, so industry deaths cover 2020 to 2024 only.
• Cross-check: HVAC deaths from the fw database match Table A-5 for the overlapping years 2019 to 2022 (31, 22, 42, 23).

Methodology

Source selection: occupation-level figures come from two BLS programs. The Survey of Occupational Injuries and Illnesses (SOII) supplies nonfatal case counts and rates for SOC 49-9021, heating, air conditioning, and refrigeration mechanics and installers, from Tables R9, R10, R12, R66 and R100. The Census of Fatal Occupational Injuries (CFOI) supplies fatal counts (Table A-5, 2019 to 2024, and the CFOI flat-file database for 2011 to 2022) and hours-based fatal rates (2019 to 2024). Industry figures for plumbing, heating, and air-conditioning contractors (NAICS 23822) come from SOII Table 1 and CFOI Table A-1.

Inclusion and exclusion: only BLS-published cells are used. Dashes in BLS tables are treated as not published, never as zero. Where a sum includes unpublished years it is labelled a floor. Trade-press and training-site figures (ACHR News, TradeCareerPath) are Tier 3 and were used only to check that our BLS readings match what others cite.

Conflicting numbers: SOII and CFOI cover different populations. SOII counts private-industry wage and salary workers; CFOI counts all workers, including the self-employed. We never mix them in one rate. The one ratio that combines them (lost-time cases per death) is labelled as a profile, not a rate.

Derived metrics: pooled fatal rates are the hours-weighted mean of the six published annual rates, which equals implied deaths divided by total hours. Pooled fall death rates divide the sum of 2019 to 2024 fall deaths by the sum of 2019 to 2024 CPS hours (in millions) and multiply by 200, the BLS base of 100,000 workers at 2,000 hours. All formulas, inputs and row references are in derived_metrics.csv, and scripts/ rebuilds every table from raw/ without network access.

Limitations: SOII two-year estimates (2021-2022, 2023-2024) are annualized and not strictly comparable with single-year estimates for 2017 to 2020. 2020 to 2022 SOII rates include COVID-19 illness. BLS rounds hours worked to the nearest 100 million, which limits the precision of computed rates for small occupations. CFOI moved to OIICS 3.0 event codes in 2023.

Last updated 2 November 2026. Owners who want a figure for their own company can use the free valuation form; it is separate from this research.

This report presents published data with its limitations. It is not legal, financial or investment advice.

Sources, ranked by quality

Tier 1: primary and official sources (23)

• [1] U.S. Bureau of Labor Statistics. Census of Fatal Occupational Injuries, Table A-5: fatal occupational injuries by occupation and event or exposure, 2024. 2024. Accessed 2026-11-02.
• [2] U.S. Bureau of Labor Statistics. Census of Fatal Occupational Injuries: hours-based fatal injury rates by occupation, 2024. 2024. Accessed 2026-11-02.
• [3] U.S. Bureau of Labor Statistics. Census of Fatal Occupational Injuries, Table A-5, 2023. 2023. Accessed 2026-11-02.
• [4] U.S. Bureau of Labor Statistics. Census of Fatal Occupational Injuries, Table A-5, 2019 to 2022 (four annual files). 2019 to 2022. Accessed 2026-11-02.
• [5] U.S. Bureau of Labor Statistics. Census of Fatal Occupational Injuries: hours-based fatal injury rates, 2019 to 2023 (five annual files). 2019 to 2023. Accessed 2026-11-02.
• [6] U.S. Bureau of Labor Statistics. Census of Fatal Occupational Injuries database (fw), flat files: fatalities by detailed occupation and event, 2011 to 2022. 2011 to 2022. Accessed 2026-11-02.
• [7] U.S. Bureau of Labor Statistics. Census of Fatal Occupational Injuries, Table A-1: fatal occupational injuries by industry and event or exposure, 2024. 2024. Accessed 2026-11-02.
• [8] U.S. Bureau of Labor Statistics. Census of Fatal Occupational Injuries, Table A-1, 2020 to 2023 (four annual files). 2020 to 2023. Accessed 2026-11-02.
• [9] U.S. Bureau of Labor Statistics. SOII Table R100: annualized incidence rates for DART, DAFW and DJTR cases by occupation and event, private industry, 2023-2024. 2023-2024. Accessed 2026-11-02.
• [10] U.S. Bureau of Labor Statistics. SOII Table R12: number of DART, DAFW and DJTR cases by occupation and event, private industry, 2023-2024. 2023-2024. Accessed 2026-11-02.
• [11] U.S. Bureau of Labor Statistics. SOII Table R66: cases by occupation and number of days away, with median days, private industry, 2023-2024. 2023-2024. Accessed 2026-11-02.
• [12] U.S. Bureau of Labor Statistics. SOII Table R100, 2021-2022 (annualized). 2021-2022. Accessed 2026-11-02.
• [13] U.S. Bureau of Labor Statistics. SOII Table R100, 2020. 2020. Accessed 2026-11-02.
• [14] U.S. Bureau of Labor Statistics. SOII Table R100, 2017 to 2019 (three annual files, historical data page). 2017 to 2019. Accessed 2026-11-02.
• [15] U.S. Bureau of Labor Statistics. SOII Table 1: incidence rates of nonfatal occupational injuries and illnesses by industry and case type, 2024. 2024. Accessed 2026-11-02.
• [16] U.S. Bureau of Labor Statistics. SOII Table 1 and Summary Table 1, 2017 to 2023 (seven annual files). 2017 to 2023. Accessed 2026-11-02.
• [17] U.S. Bureau of Labor Statistics. National Census of Fatal Occupational Injuries in 2024 (news release USDL-26-0230, 19 February 2026). 2024. Accessed 2026-11-02.
• [18] U.S. Bureau of Labor Statistics. Employer-reported workplace injuries and illnesses, 2023-2024 (news release USDL-26-0101, 22 January 2026). 2023-2024. Accessed 2026-11-02.
• [19] U.S. Bureau of Labor Statistics. Hours-based fatal work injury rates (CFOI technical explainer). current. Accessed 2026-11-02.
• [20] Occupational Safety and Health Administration, Federal Register. Heat Injury and Illness Prevention in Outdoor and Indoor Work Settings, proposed rule, 89 FR 70698 (30 August 2024). 2024. Accessed 2026-11-02.
• [21] Occupational Safety and Health Administration, Federal Register. Heat Injury and Illness Prevention: extension of post-hearing comment period, 90 FR 46110 (25 September 2025). 2025. Accessed 2026-11-02.
• [25] U.S. Bureau of Labor Statistics. SOII Table R9: number of DART, DAFW and DJTR cases by occupation and nature of injury or illness, private industry, 2023-2024. 2023-2024. Accessed 2026-11-02.
• [26] U.S. Bureau of Labor Statistics. SOII Table R10: number of DART, DAFW and DJTR cases by occupation and part of body affected, private industry, 2023-2024. 2023-2024. Accessed 2026-11-02.

Tier 3: journalism and expert commentary (3)

• [22] ACHR News. HVAC, Plumbing Sees 10% Fewer Workplace Fatalities in 2024. 2024. Accessed 2026-11-02.
• [23] TradeCareerPath. HVAC Technician Salary Statistics 2026: Pay, Openings, and Injury Rates. 2023-2024. Accessed 2026-11-02.
• [24] TradeCareerPath. The Most Dangerous Trades: Injury Rates by Occupation (BLS Data). 2023-2024. Accessed 2026-11-02.