Safety Incidents OSHA Severe Injury Reports · 2015–2025
5,189,992Inspections Most recent open 2026-07-18 Last loaded 2026-07-22

OSHA Inspection: MAES CLEANING AND BUILDING SERVICES LLC

Referral inspection · Safety discipline

On , OSHA opened a referral safety inspection of MAES CLEANING AND BUILDING SERVICES LLC in 1600 20TH STREET, DENVER, CO 80204 (NAICS 561720). OSHA activity number 345202774.

What this inspection record means

OSHA opens inspections for many reasons — routine scheduling under a national or local emphasis program, an employee complaint or referral, or a follow-up after a reported injury. Opening or conducting an inspection is not itself an allegation or a finding that this employer broke any rule; any findings appear as the citations listed below, and citations can be contested, reduced, or withdrawn.

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Site address
1600 20TH STREET
City
DENVER
State
CO
ZIP
80204
Mailing
1916 KINGSTON STREET, AURORA, CO 80010
Inspection type
Referral (C)
Scope
Partial (B)
Discipline
Safety
Advance notice
No
Union status
B
Opened
Closing conference
Case closed
Last modified
Data loaded
NAICS code
561720
Employees
10
Ownership type
A

3 citations on file for this inspection.

1910.27 B02 III

Serious Gravity 10 1 instance 1 exposed
Issued
Sep 1, 2021
Abate by
Sep 22, 2021
Penalty
Initial $4,096 · Current $4,096
29 CFR 1910.27(b)(2)(iii): The employer did not ensure that each employee who uses the rope descent system is trained in accordance with � 1910.30:  (a) Maes Cleaning and Building Services  LLC at 1600 20th Street, Denver, CO 80204: On and before March 12, 2021, the employer did not ensure that employees  performing window cleaning operations who used the rope descent system were trained in accordance with � 1910.30. An employee washing windows of a 15 story building seated upon a bosun's chair while anchored to a TRACTEL davit boom, did not secure the boom rotation lock per TRACTEL user manual instructions. The employee did not use rope guards to protect the suspension rope and safety line from abrasion hazards from metal flashing on the side of Rally Hotel building. The employer did not ensure that the employee was trained in how to recognize fall hazards and the procedures to be followed to minimize those hazards. This condition exposed the employee to an approximate fifteen story fall hazard.
Recent events (1)
  • — Z (S) $4096

1910.27 B02 VIII

Serious Gravity 10 1 instance 1 exposed
Issued
Sep 1, 2021
Abate by
Sep 22, 2021
Penalty
Initial $4,096 · Current $4,096
29 CFR 1910.27(b)(2)(viii): The employer did not ensure that prompt rescue of each employee that is provided in the event of a fall:  (a) Maes Cleaning and Building Services LLC at 1600 20th Street, Denver, CO 80204: On March 12, 2021, the employer did not ensure that prompt rescue was provided. At approximately 2:20 pm, the suspension line attached to bosun's chair snapped. The employee climbed onto an eighth floor window ledge to wait for the Denver Fire Department to rescue him. The employer did not ensure that a rescue plan was in place and that all employees were trained on a rescue plan. This condition exposed the employee to an approximate eight story fall hazard.
Recent events (1)
  • — Z (S) $4096

1910.27 B02 IX

Serious Gravity 10 1 instance 1 exposed
Issued
Sep 1, 2021
Abate by
Sep 22, 2021
Penalty
Initial $4,096 · Current $4,096
29 CFR 1910.27(b)(2)(ix): The employer did not ensure that the ropes of each rope descent system are effectively padded or otherwise protected, where they can contact edges of the building, anchorage, obstructions, or other surfaces, to prevent them from being cut or weakened:  (a) Maes Cleaning and Building Services LLC at 1600 20th Street, Denver, CO 80204: On March 12, 2021, the employer did not ensure that the ropes of each rope descent system were effectively padded or otherwise protected. An employee washed windows of a 15 story building seated upon a bosun's chair while anchored to a TRACTEL davit boom. The ropes were not protected from metal flashing that the ropes contacted. The main suspension line was cut through and the safety line was partially cut through. This condition exposed the employee to an approximate eight story fall hazard.
Recent events (1)
  • — Z (S) $4096

This record is reproduced from the U.S. Department of Labor Open Data API (OSHA inspection dataset). The original IMIS detail view is available at OSHA's Establishment Search for activity number 345202774.

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