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O'Leary's Contractors Equipment & Supply Co. Inc.

Chicago, IL 60651

Company Info

  • Est. 1949
  • Annual Vol Undisclosed

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Our Story

O'Leary's was started in 1949 by John J. O'Leary Sr. and his wife Ruth in a one-room office located on Lake Street in Chicago. Over the years, the company has flourished and has been operating at their same location 4554 West North Avenue since the early 1960's.

Prior to opening O'Leary's, John Sr. worked as a 150 Operating Engineer and as a salesman for the Thor Construction Tool Company. His sales territory was the Chicagoland area where he was laying the ground work for his future company. He passed away in 1978 and Ruth ran the business until John Jr. took over in 1991.

"We are always keeping with the times by updating and modernizing our equipment and procedures," said John J. O'Leary, Jr. "Our customers are loyal because of the excellent care and service that we provide."

The company was created with a simple philosophy: "Service the customer and everything else will take care of itself." With this in mind we are excited about the future of the construction industry, and our role in it.

What We Do

Commercial Experience

Misc Project Residential Building Single Family Residential

Regions & Counties Serviced

  • Chicago, N.W. Indiana

Illinois 8

  • Cook
  • Dupage
  • Kane
  • Kankakee
  • Kendall
  • Lake
  • Mchenry
  • Will

Indiana 5

  • Jasper
  • La Porte
  • Lake
  • Newton
  • Porter

Wisconsin 9

  • Dodge
  • Jefferson
  • Kenosha
  • Milwaukee
  • Ozaukee
  • Racine
  • Walworth
  • Washington
  • Waukesha

Our CSI Codes

01 51 13 - Temporary Electricity
01 51 26 - Temporary Lighting
01 78 43 - Spare Parts
22 06 15 - Schedules for General Service Compressed-Air Equipment
25 36 16 - Integrated Automation KW Transducers
26 01 30 - Operation and Maintenance of Facility Electrical Power Generating and Storing Equipment
26 06 30 - Schedules for Facility Electrical Power Generating and Storing Equipment
26 26 00.00.01 - Power Distribution Units
26 32 13 - Engine Generators
26 32 13.13 - Diesel-Engine-Driven Generator Sets
26 32 13.16 - Gas-Engine-Driven Generator Sets
26 32 16 - Steam-Turbine Generators
26 32 19 - Hydro-Turbine Generators
26 32 33 - Rotary Uninterruptible Power Units
26 33 23 - Central Battery Equipment
26 33 33 - Static Power Converters
26 33 46 - Battery Monitoring
26 33 53 - Static Uninterruptible Power Supply
26 35 33 - Power Factor Correction Equipment
26 56 23 - Area Lighting
26 56 29 - Site Lighting
26 56 36 - Flood Lighting
33 71 26.13 - Capacitor Banks
41 61 13 - Backhoes
41 61 33 - Trenchers
41 65 16 - Mobile Generators
41 67 23 - Plant Maintenance Tools
42 14 16 - Atmosphere Generators
48 01 10 - Operation and Maintenance of Electrical Power Generation Equipment
48 01 70 - Operation and Maintenance of Electrical Power Generation Testing
48 05 00.00.01 - Common Work Results for Electrical Power Generation
48 06 10 - Schedules for Electrical Power Generation Equipment
48 06 70 - Schedules for Electrical Power Generation Testing
48 09 00.00.01 - Instrumentation and Control for Electrical Power Generation
48 10 00.00.01 - Electrical Power Generation Equipment
48 11 26 - Fossil Fuel Electrical Power Plant Generators
48 12 23 - Nuclear Fuel Electrical Power Plant Steam Generators
48 12 33 - Nuclear Fuel Electrical Power Generators
48 13 16 - Hydroelectric Power Plant Electrical Power Generators
48 16 23 - Geothermal Energy Electrical Power Generators
48 17 13 - Electrical Power Generation Batteries
48 18 13 - Electrical Power Generation Fuel Cells
48 19 13 - Electrical Power Generation Battery Charging Equipment
48 19 23 - Electrical Power Generation Transformers
48 19 26 - Electrical Power Generation Voltage Regulators

Gallery

Featured Image 1
Delivery Fleet
Featured Image 2
Products
Featured Image 3
Products
Featured Image 4
Products

Associations & Memberships

Yelp
Yelp
ARA (American Rental Assn.)
ARA (American Rental Assn.)
OSHA (Occupational Safety & Health Administration)
OSHA (Occupational Safety & Health Administration)
IED
Groundhog Club

Preferred Brands

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Chicago Pneumatic
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E-Z Drill
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Wanco
Powerblanket
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Tamco Tools
Tamco Tools
Sullair Corp.
Sullair Corp.
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Bosch
Blastrac Surface Preparation
Blastrac Surface Preparation
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