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Employers › CT

Construction · Middletown, CT

Keystone Construction & Maintenance

According to OSHA enforcement records (2010–2026), Keystone Construction & Maintenance ranks #1 of 99,447 penalized U.S. employers by total current penalty, with a concerning safety record: 112 violations across 3 inspections.

Top 1% by penalty13% serious
$6.55M
OSHA penalties
112
Violations cited
3
OSHA inspections
#1
of 99,447 penalized employers

Keystone Construction & Maintenance in Middletown, CT has been the subject of 3 OSHA workplace inspections and 112 citations since 2010, according to enforcement records from the U.S. Department of Labor. Total penalties assessed: $6.55M. All enforcement data below is sourced from the DOL public enforcement databases at data.dol.gov.

The record in one line

OSHA has inspected Keystone Construction & Maintenance 3 times over 1 year - more than twice a year on average. These inspections turned up 112 violations, averaging 37.3 per inspection - an extremely dense concentration of citations. According to OSHA enforcement records, its total current penalty ranks #1 of 99,447 penalized U.S. employers (the top 1% of penalized employers nationally). Of these, 15 were classified as serious and 96 as willful - indicating hazards that could cause death or serious harm. Against the Construction industry average of 2 inspections per employer, this runs moderately above peers (1.5x the sector average) on inspection frequency. For comparison, Imperial Pacific Resort Hotel - Saipan in Saipan, MP is another construction employer with 0 OSHA inspections on record and $0 in current penalties.

37.3
violations per inspection
13.4%
of violations were serious
#1
of 99,447 penalized employers

Compliance score

F 0/100
  • F OSHA safety compliance: 112 violations across 3 OSHA inspections (37.3 per inspection), vs. national p10 0.0 (best) / p90 5.5 (worst) among 145,626 inspected employers.

Channels are separate federal datasets: a dimension marked not applicable simply has no record in that dataset for this employer, not a good or bad score.

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How this employer compares on OSHA penalties

Total current penalty vs the Construction per-employer average

in penalties

What this shows Keystone Construction & Maintenance runs far above peers (967.9x the sector average) in total OSHA penalties.

Source U.S. Department of Labor, OSHA enforcement extracts As of 2026

Where this penalty ranks nationally

Total current OSHA penalty vs every U.S. employer with a nonzero penalty

$6,550,000 Bottom 1% least affordable more affordable than 0% of 99,447 U.S. employers with a penalty

$0–$5,000: 43,959 U.S. employers with a penalty (44%). Below this entry. $5,000–$10,000: 20,304 U.S. employers with a penalty (20%). Below this entry. $10,000–$15,000: 11,027 U.S. employers with a penalty (11%). Below this entry. $15,000–$20,000: 6,546 U.S. employers with a penalty (7%). Below this entry. $20,000–$25,000: 4,175 U.S. employers with a penalty (4%). Below this entry. $25,000–$30,000: 2,877 U.S. employers with a penalty (3%). Below this entry. $30,000–$35,000: 2,036 U.S. employers with a penalty (2%). Below this entry. $35,000–$40,000: 1,493 U.S. employers with a penalty (2%). Below this entry. $40,000–$45,000: 1,095 U.S. employers with a penalty (1%). Below this entry. $45,000–$50,000: 785 U.S. employers with a penalty (1%). Below this entry. $50,000+: 5,150 U.S. employers with a penalty (5%). This entry ($6,550,000) is well above this band, the chart's rightmost open-ended bucket. This employer: $6,550,000 $0 $55,000+ every penalized U.S. employer, bucketed by value

Each bar is a $5K-wide band; taller bars hold more U.S. employers with a penalty. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Department of Labor, OSHA enforcement extracts · 2026

Does more inspection scrutiny mean more findings?

Each dot is one of 21 Construction employers with an OSHA inspection on record, placed by inspections and violations cited. The highlighted dot is Keystone Construction & Maintenance.

Frequently inspected, many findingsRarely inspected, many findingsFrequently inspected, clean recordBelow median on both3.03.033.03.0029.458.888.1117.5OSHA inspectionsViolations citedDOVER GREENS, LLC., OSHA inspections: 3 · Violations cited: 70WI BILT-WELL ROOFING…, OSHA inspections: 3 · Violations cited: 9COMMERCIAL FORMING C…, OSHA inspections: 3 · Violations cited: 3SANTANA SIDING LLC, OSHA inspections: 3 · Violations cited: 12BISSETTE CONSTRUCTIO…, OSHA inspections: 3 · Violations cited: 11OLEN FORD, OSHA inspections: 3 · Violations cited: 14AMES CONSTRUCTION, I…, OSHA inspections: 3 · Violations cited: 2TREVCON CONSTRUCTION…, OSHA inspections: 3 · Violations cited: 14SALVADOR SERRANO, OSHA inspections: 3 · Violations cited: 5BSI BAN SOK INTERIORS, OSHA inspections: 3 · Violations cited: 14ABSR, INC., OSHA inspections: 3 · Violations cited: 17E MONTALVO SILVA CON…, OSHA inspections: 3 · Violations cited: 10TURNER CONSTRUCTION,…, OSHA inspections: 3 · Violations cited: 3GARZA FAMILY CONSTRU…, OSHA inspections: 3 · Violations cited: 5JOHN BEAL INC., OSHA inspections: 3 · Violations cited: 7TERRY STEPHEN DBA T.…, OSHA inspections: 3 · Violations cited: 11SUNNY SLOPE CONSTRUC…, OSHA inspections: 3 · Violations cited: 21DAVE FOSTER BUILDERS…, OSHA inspections: 3 · Violations cited: 11QUALITY CARPENTRY GR…, OSHA inspections: 3 · Violations cited: 9VANNI CONSTRUCTION, …, OSHA inspections: 3 · Violations cited: 4Keystone Constructio…, OSHA inspections: 3 · Violations cited: 112
Keystone Construction & Maintenance has 3 OSHA inspections on record and 112 violations cited. The crosshair marks the median among these Construction peers. Across this sector's tracked employers, more inspections is moderately associated with more violations found -- not a coincidence, but not a guarantee either.

Keystone Construction & Maintenance in the Construction enforcement ledger

Construction sector: Keystone Construction & Maintenance is the #1 heaviest OSHA penalty carrier of 33,222 employers with nonzero fines ($6.55M).

How Keystone Construction & Maintenance Compares

Keystone Construction & Maintenance's 37.33 violations per inspection compares to the Construction sector average of 3.3 violations per employer.

Against the Construction industry average of $6,767 per employer, this employer's current OSHA penalty runs far above peers (967.9x the sector average).

Enforcement detail

OSHA Inspection History

Total Inspections

3

First Inspection

2010-02-07

Last Inspection

2011-06-13

Inspection Span

1 yr

Violations / Inspection

37.3

Avg Penalty / Inspection

$2.18M

Industry Avg / Inspection

$3,361

What this shows 3 inspections over 1 year, averaging 37.3 violations per visit. That's $2.18M per inspection vs. the Construction average of $3,361.

Enforcement detail

Violation Breakdown

15

Serious

13.4% of total

96

Willful

85.7% of total

0

Repeat

0.0% of total

1

Other-Than-Serious

0.9% of total

What this shows Serious violations involve hazards that could cause death or serious physical harm. Willful violations indicate intentional or knowing disregard of the law. Repeat violations are for hazards previously cited within the past 5 years.

Enforcement detail

Penalty Analysis

Initial Penalty Assessed

$6.75M

Current Penalty Amount

$6.55M

Penalty Reduction

3.0%

What this shows Penalties were reduced by $202,540 from the initial assessment of $6.75M. Reductions may result from informal settlements, formal contests, or negotiated agreements with OSHA.

Industry Safety Context: Construction

How Keystone Construction & Maintenance compares to the Construction sector, which has 61,260 employers tracked by PlainWorker.

Metric Keystone Construction & Maintenance Industry Avg
Inspections 3 2.0
Violations 112 3.3
Total Penalty $6.55M $6,767
Avg Penalty per Inspection $2.18M $3,361
View all 61,260 employers in Construction →

Nationwide Construction peers with similar penalties or inspection counts

Two OSHA-record peer sets for Keystone Construction & Maintenance, both outside CT so the neighborhoods are not geographic containment.

Similar current OSHA penalty

Nearest same-sector employers by current assessed penalty ($6.55M here).

Thomas Builders of Virginia, INC. $1.97M VA Great White Construction, INC. $1.65M FL Thomas Builders of Virginia, INC. $1.63M VA Atlantic Drain Service Company, INC. $1.52M MA

Similar OSHA inspection count

Same-sector employers with a comparable inspection history outside this state (3 inspections here).

Dover Greens, LLC. 3 insp. Wingdale, NY WI Bilt-Well Roofing, LLC 3 insp. Grafton, WI Commercial Forming CORP South 3 insp. Miami, FL Santana Siding LLC 3 insp. Marietta, GA

Nearby & Similar Employers in Construction

Showing 5 of 61259 other employers tracked in this sector.

Spencer Construction LLC
Tucson, AZ
0 inspections $0
Southwest Valley Constructors
Albuquerque, NM
0 inspections $0
GenStrong
Rio Grande, PR
0 inspections $0
McC International Saipan LTD. CO.
Saipan, MP
5 inspections $76,693
Imperial Pacific Resort Hotel - Saipan
Saipan, MP
0 inspections $0

Compare Keystone Construction & Maintenance vs Spencer Construction LLC side-by-side →

What to do with this record

Use Keystone Construction & Maintenance's enforcement history as one data point, not the whole picture.

  • A single employer's record can look unusual in isolation. Compare Keystone Construction & Maintenance against Spencer Construction LLC, a similarly-sized employer in the same sector, before drawing conclusions. Compare side-by-side
  • See whether Keystone Construction & Maintenance's inspection and penalty record is typical for Construction or an outlier against the sector's own average. View the Construction sector
  • Before you accept a job or raise a safety concern, search any employer for its own OSHA inspection history the same way you found this one. Search employers

Figures reflect closed OSHA and WHD federal enforcement actions on record (2010–2026); not every workplace issue results in an inspection or investigation.

Frequently Asked Questions

Is Keystone Construction & Maintenance safe to work at? ▼
Based on OSHA records, Keystone Construction & Maintenance's workplace safety record is concerning, with multiple serious compliance issues. The employer has 112 violations across 3 inspections, including 15 serious violations. Compared to Construction industry peers, this is above average for penalties. Review the full inspection history below for details.
How many OSHA violations does Keystone Construction & Maintenance have? ▼
Keystone Construction & Maintenance has 112 OSHA violations on record, including 15 serious, 96 willful, and 0 repeat violations. The total current penalty amount is $6.55M.
How many OSHA inspections has Keystone Construction & Maintenance had? ▼
Keystone Construction & Maintenance has had 3 OSHA inspections, with the first recorded on 2010-02-07 and the most recent on 2011-06-13. This averages 37.3 violations per inspection.
What is the total penalty amount for Keystone Construction & Maintenance? ▼
Keystone Construction & Maintenance has been assessed $6.55M in current OSHA penalties, reduced from an initial assessment of $6.75M (a 3.0% reduction).
Does Keystone Construction & Maintenance have any serious or willful violations? ▼
Yes. Keystone Construction & Maintenance has 15 serious violations, 96 willful violations. Serious violations involve hazards likely to cause death or serious physical harm. Willful violations indicate the employer intentionally or knowingly disregarded the law.
What industry does Keystone Construction & Maintenance operate in? ▼
Keystone Construction & Maintenance operates in the Construction sector (NAICS code 238220). This industry has 61,260 employers tracked by PlainWorker, with 123,354 total OSHA inspections and $414.57M in cumulative penalties.
Where does Keystone Construction & Maintenance rank nationally on OSHA penalties? ▼
Among the 99,447 U.S. employers with a nonzero current OSHA penalty in PlainWorker's corpus, Keystone Construction & Maintenance ranks #1 (the top 1% of penalized employers nationally). The ordinal is a live COUNT of employers with a lower total_current_penalty; see the methodology page for the exact derivation.
How does Keystone Construction & Maintenance's safety record compare to industry average? ▼
Keystone Construction & Maintenance's total OSHA penalty of $6.55M is above the Construction industry average of $6,767 per employer (967.9x the average). The employer has 3 inspections compared to the industry average of 2.0 per employer. For a direct comparison, Imperial Pacific Resort Hotel - Saipan in Saipan, MP is a similar construction employer with $0 in current penalties.
Data Sources & Methodology ▼

Data as of 2026. Source: U.S. Department of Labor (OSHA, WHD).

Source: OSHA Enforcement Data

Inspection and violation records from the Occupational Safety and Health Administration (OSHA), U.S. Department of Labor, covering the period 2010–2026. Includes inspection dates, violation types (serious, willful, repeat, other-than-serious), and penalty amounts. Penalties shown are current assessed amounts and may differ from original citations due to settlement, contest, or reduction.

Source: Wage and Hour Division (WHD)

Compliance actions from the WHD, covering enforcement of the Fair Labor Standards Act (FLSA), including minimum wage, overtime, and child labor violations. Back wages represent amounts owed to affected employees as determined by WHD investigations.

Employer Matching

Employers are matched across OSHA and WHD datasets by name, state, and city. Employers included in PlainWorker have 2 or more OSHA inspections or $1,000+ in WHD back wages. Data is updated monthly from data.dol.gov.

Verify with OSHA establishment search →

Every figure on PlainWorker is rendered directly from official U.S. Department of Labor OSHA and Wage & Hour Division enforcement records, no number is typed in by an editor. This employer's ratios (penalty-per-violation, industry comparisons) are computed live from the 3 inspections on record. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026.