Keystone Service Group
Centennial, CO 80016
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Our Story
Our main lines of business include: Controls, Control Systems & Regulators, Electrical Contractors.
Keystone Service Group has been listed in the Blue Book since 2008.
What We Do
Regions & Counties Serviced
- Colorado and Wyoming
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Our CSI Codes
13 50 00.00.01 - Special Instrumentation
23 09 13 - Instrumentation and Control Devices for HVAC
23 09 13.13 - Actuators and Operators
23 09 13.23 - Sensors and Transmitters
23 09 23 - Direct-Digital Control System for HVAC
23 09 33 - Electric and Electronic Control System for HVAC
23 09 43 - Pneumatic Control System for HVAC
23 09 53 - Pneumatic and Electric Control System for HVAC
23 09 93 - Sequence of Operations for HVAC Controls
25 01 10 - Operation and Maintenance of Integrated Automation Network Equipment
25 01 20 - Operation and Maintenance of Integrated Equipment
25 01 30 - Operation and Maintenance of Integrated Automation Instrumentation and Terminal Devices
25 01 90 - Diagnostic Systems for Integrated Automation
25 05 26 - Grounding and Bonding for Integrated Automation
25 05 53 - Identification for Integrated Automation
25 06 11 - Schedules for Integrated Automation Network
25 06 12 - Schedules for Integrated Automation Network Gateways
25 06 13 - Schedules for Integrated Automation Control and Monitoring Network
25 06 14 - Schedules for Integrated Automation Local Control Units
25 06 30 - Schedules for Integrated Automation Instrumentation and Terminal Devices
25 30 00.00.01 - Integrated Automation Instrumentation and Terminal Devices
25 31 00.00.01 - Integrated Automation Instrumentation and Terminal Devices for Facility Equipment
25 35 19 - Integrated Automation Control Valves
25 35 26 - Integrated Automation Compressed Air Supply
25 36 19 - Integrated Automation Current Sensors
25 38 00.00.01 - Integrated Automation Instrumentation and Terminal Devices for Electronic Safety and Security Systems
25 51 00.00.01 - Integrated Automation Control of Facility Equipment
25 55 00.00.01 - Integrated Automation Control of HVAC
25 56 00.00.01 - Integrated Automation Control of Electrical Systems
25 90 00.00.01 - Integrated Automation Control Sequences
25 91 00.00.01 - Integrated Automation Control Sequences for Facility Equipment
25 95 00.00.01 - Integrated Automation Control Sequences for HVAC
25 96 00.00.01 - Integrated Automation Control Sequences for Electrical Systems
26 01 10 - Operation and Maintenance of Medium-Voltage Electrical Distribution
26 01 20 - Operation and Maintenance of Low-Voltage Electrical Distribution
26 06 10 - Schedules for Medium-Voltage Electrical Distribution
26 06 20 - Schedules for Low-Voltage Electrical Distribution
26 06 20.26 - Wiring Device Schedule
26 09 23 - Lighting Control Devices
26 09 36 - Modular Dimming Controls
26 09 36.13 - Manual Modular Dimming Controls
26 09 36.16 - Integrated Multipreset Modular Dimming Controls
26 09 43 - Network Lighting Controls
26 09 43.13 - Digital-Network Lighting Controls
26 09 43.16 - Addressable Fixture Lighting Control
26 10 00.00.01 - Medium-Voltage Electrical Distribution
26 18 13 - Medium-Voltage Cutouts
26 20 00.00.01 - Low-Voltage Electrical Distribution
26 21 00.00.01 - Low-Voltage Overhead Electrical Power Systems
26 24 19 - Motor-Control Centers
26 43 13 - Transient-Voltage Suppression for Low-Voltage Electrical Power Circuits
27 05 26 - Grounding and Bonding for Communications Systems
33 71 36 - Extra-High-Voltage Wiring
33 71 36.13 - Overhead Extra-High-Voltage Wiring
33 71 39 - High-Voltage Wiring
33 71 39.13 - Overhead High-Voltage Wiring
33 71 49 - Medium-Voltage Wiring
33 71 49.13 - Overhead Medium-Voltage Wiring
33 81 23 - Aerial Cable Installation Hardware
34 21 16 - Traction Power Substations
34 21 16.13 - AC Traction Power Substations
34 21 16.16 - DC Traction Power Substations
34 43 26.13 - Airfield Lighting Control Equipment
34 43 26.16 - Airfield Lighting PLC Control Equipment
40 90 00.00.01 - Instrumentation and Control for Process Systems
40 92 49 - Variable Frequency Drives
40 94 23 - Distributed Process Control Systems
40 94 43 - Programmable Logic Process Controllers
40 95 73 - Process Control Wiring