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Petra Contractors, Inc.
Glen Burnie, MD 21108
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Our Story
Our main lines of business include: Electrical Contractors.
Petra Contractors, Inc. has been listed in the Blue Book since 2012.
What We Do
- Electrical Contractors
Regions & Counties Serviced
- Washington D.C.
Maryland 1
- Anne Arundel
Our CSI Codes
04 01 20 - Maintenance of Unit Masonry
04 01 20.51 - Unit Masonry Maintenance
04 01 60 - Maintenance of Corrosion-Resistant Masonry
04 01 70 - Maintenance of Manufactured Masonry
04 05 16 - Masonry Grouting
04 06 20 - Schedules for Unit Masonry
04 06 20.13 - Masonry Unit Schedule
04 06 60 - Schedules for Corrosion-Resistant Masonry
04 57 00.00.01 - Masonry Fireplaces
12 11 23 - Brick Murals
22 01 10 - Operation and Maintenance of Plumbing Piping and Pumps
22 01 30 - Operation and Maintenance of Plumbing Equipment
22 01 40 - Operation and Maintenance of Plumbing Fixtures
22 06 10 - Schedules for Plumbing Piping and Pumps
22 06 10.13 - Plumbing Pump Schedule
22 06 30.13 - Domestic Water Heater Schedule
22 10 00.00.01 - Plumbing Piping and Pumps
22 13 19.13 - Sanitary Drains
25 05 26 - Grounding and Bonding for Integrated Automation
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 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 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
35 49 13.16 - Masonry Floodwalls
40 95 73 - Process Control Wiring
