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Our Story
When general contractors are looking for electrical expertise, they often turn to DeRock Electric Co. DeRock has produced big results. Headed by namesakes Doug Detwiler and Rock Forry, whose friendship spans more than 20 years, their partnership complements each other. Forry supervises all field operations and man power with a hands-on approach. Detwiler takes care of all estimating, design and sales. Having been contracted for commercial and industrial projects throughout the region, DeRock’s work can be found within medical facilities, churches, malls and manufacturing facilities.
Detwiler and Forry have a combined 50 years of experience in the industry. They are master electricians and offer AutoCAD design in-house. Their firm holds certifications in Edwards fire alarm systems and has experience in data communications with CAT-5 and CAT-6 cabling and phone and fiber-optic lines. DeRock also tests lines and help clients with preventive maintenance through the use of infrared cameras, which helps document the existing infrastructure and diagnose any issues.
Commercial Experience
Church / Synagogue
Misc Project
Mixed Use
Retail Store
Storage Facility / Warehouse
Animal Hospital / Kennel
Apartments & Condominiums
Assisted Living
Auto Dealership / Service
Bank
Club House / Community Center
Design Build
Education (K-12)
Fitness Center
Gas Station
Grocery Stores
Hotel / Motel
Industrial Maintenance
Library
Lighting Retrofits
Manufacturing Plant
Medical Office
Non-Building Construction
Non-Residential Building
Office Building
Parking Garage
Parking Lots
Radio / Television Station
Restaurant
Swimming Pool
Tennis Court
Theater
Tract Housing
Utilities
Regions & Counties Serviced
- Pennsylvania-Eastern
Pennsylvania 12
- Adams
- Bedford
- Blair
- Cumberland
- Franklin
- Fulton
- Huntingdon
- Juniata
- Lebanon
- Mifflin
- Perry
- York
Our CSI Codes
02 31 19 - Magnetic Investigations
02 31 23 - Electromagnetic Investigations
21 05 33 - Heat Tracing for Fire-Suppression Piping
22 05 33 - Heat Tracing for Plumbing Piping
23 05 33 - Heat Tracing for HVAC Piping
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 01 40 - Operation and Maintenance of Electrical and Cathodic Protection Systems
26 05 46 - Utility Poles for Electrical Systems
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 41 13 - Lightning Protection for Structures
26 41 13.13 - Lightning Protection for Buildings
26 41 16 - Lightning Prevention and Dissipation
26 41 19 - Early Streamer Emission Lightning Protection
26 41 23 - Lightning Protection Surge Arresters and Suppressors
26 43 13 - Transient-Voltage Suppression for Low-Voltage Electrical Power Circuits
26 56 13 - Lighting Poles and Standards
26 56 19 - Roadway Lighting
26 56 68 - Exterior Athletic Lighting
27 01 10 - Operation and Maintenance of Structured Cabling and Enclosures
27 01 20 - Operation and Maintenance of Data Communications
27 05 13.23 - T1 Services
27 05 13.33 - DSL Services
27 05 13.43 - Cable Services
27 05 26 - Grounding and Bonding for Communications Systems
27 05 28 - Pathways for Communications Systems
27 05 46 - Utility Poles for Communications Systems
27 06 10 - Schedules for Structured Cabling and Enclosures
27 06 20 - Schedules for Data Communications
27 06 30 - Schedules for Voice Communications
27 10 00.00.01 - Structured Cabling
27 11 23 - Communications Cable Management and Ladder Rack
27 13 13.13 - Communications Copper Cable Splicing and Terminations
27 13 23 - Communications Optical Fiber Backbone Cabling
27 13 23.13 - Communications Optical Fiber Splicing and Terminations
27 13 33 - Communications Coaxial Backbone Cabling
27 13 33.13 - Communications Coaxial Splicing and Terminations
27 13 43 - Communications Services Cabling
27 13 43.23 - T1 Services Cabling
27 13 43.33 - DSL Services Cabling
27 13 43.43 - Cable Services Cabling
27 15 00.16 - Voice Communications Horizontal Cabling
27 15 00.19 - Data Communications Horizontal Cabling
27 15 00.49 - Intermediate Frequency/Radio Frequency Communications Horizontal Cabling
27 15 13 - Communications Copper Horizontal Cabling
27 15 23 - Communications Optical Fiber Horizontal Cabling
27 15 33 - Communications Coaxial Horizontal Cabling
27 21 13 - Data Communications Firewalls
28 01 30 - Operation and Maintenance of Electronic Detection and Alarm
28 01 30.51 - Maintenance and Administration of Electronic Detection and Alarm
28 01 30.71 - Revisions and Upgrades of Electronic Detection and Alarm
28 06 30 - Schedules for Electronic Detection and Alarm
28 16 33 - Intrusion Detection Interfaces
28 16 33.36 - Intrusion Detection Interfaces to Fire Alarm
28 16 46 - Intrusion Detection Vehicle Control Systems
28 26 16 - Electronic Personal Safety Alarm Annunciation and Control Systems
28 30 00.00.01 - Electronic Detection and Alarm
28 31 13 - Fire Detection and Alarm Control, GUI, and Logic Systems
28 31 23 - Fire Detection and Alarm Annunciation Panels and Fire Stations
28 31 33 - Fire Detection and Alarm Interfaces
28 31 33.13 - Fire Detection and Alarm Interfaces to Remote Monitoring
28 31 33.43 - Fire Detection and Alarm Interfaces to Elevator Control
28 31 53 - Fire Alarm Initiating Devices
28 31 53.23 - Fire Alarm Level Detectors Switches
28 31 53.33 - Fire Alarm Flow Switches
28 31 53.43 - Fire Alarm Pressure Sensors
28 31 63 - Fire Alarm Integrated Audio Visual Evacuation Systems
28 31 63.13 - Fire Alarm Horns and Strobes
28 32 13 - Radiation Detection and Alarm Control, GUI, and Logic Systems
28 32 23 - Radiation Detection and Alarm Integrated Audio Evacuation Systems
28 32 33 - Radiation and Alarm Detection Sensors
28 32 43 - Radiation and Alarm Dosimeters
31 63 29.16 - Cased Drilled Concrete Piers
33 71 13.13 - Precast Concrete Electrical Utility Towers
33 71 13.23 - Steel Electrical Utility Towers
33 71 13.33 - Wood Electrical Utility Towers
33 71 16 - Electrical Utility Poles
33 71 16.13 - Precast Concrete Electrical Utility Poles
33 71 16.23 - Steel Electrical Utility Poles
33 71 16.33 - Wood Electrical Utility Poles
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 75 39 - High-Voltage Surge Arresters
33 79 13 - Site Improvements Grounding
33 79 13.13 - Electric Fence Grounding
33 79 16 - Tower Grounding
33 79 16.13 - Communications Tower Grounding
33 79 16.16 - Antenna Tower Grounding
33 79 83 - Site Grounding Conductors
33 79 83.13 - Grounding Wire, Bar, and Rod
33 79 83.16 - Chemical Rod
33 79 83.23 - Conductive Concrete
33 79 83.33 - Earth Grounding Enhancement
33 79 83.43 - Deep Earth Grounding
33 79 93 - Site Lightning Protection
33 79 93.13 - Lightning Strike Counters
33 79 93.16 - Lightning Strike Warning Devices
33 81 19 - Communications Utility Poles
33 81 23 - Aerial Cable Installation Hardware
33 82 13 - Copper Communications Distribution Cabling
33 82 13.13 - Copper Splicing and Terminations
33 82 23 - Optical Fiber Communications Distribution Cabling
33 82 23.13 - Optical Fiber Splicing and Terminations
33 82 33 - Coaxial Communications Distribution Cabling
33 82 33.13 - Coaxial Splicing and Terminations
33 82 43 - Grounding and Bonding for Communications Distribution
34 21 16 - Traction Power Substations
34 21 16.13 - AC Traction Power Substations
34 21 16.16 - DC Traction Power Substations
34 23 13 - Traction Power Poles
34 73 16 - Airfield Grounding
34 73 16.13 - Aircraft Static Grounding
40 41 13 - Process Piping Heat Tracing
40 41 13.13 - Process Piping Electrical Resistance Heat Tracing
40 41 13.16 - Process Piping Electrical Conductance Heat Tracing
40 41 13.19 - Process Piping Gas Heat Tracing
40 41 13.23 - Process Piping Steam Heat Tracing
40 41 13.26 - Process Piping Thermal Fluids Heat Tracing
40 41 23 - Process Equipment Heat Tracing
40 41 23.13 - Process Equipment Electrical Resistance Heat Tracing
40 41 23.16 - Process Equipment Electrical Conductance Heat Tracing
40 41 23.19 - Process Equipment Gas Heat Tracing
40 41 23.23 - Process Equipment Steam Heat Tracing
40 41 23.26 - Process Equipment Thermal Fluids Heat Tracing
40 95 33.13 - Cabled Process Control Networks
40 95 33.23 - Fiber Optic Process Control Networks
40 95 33.33 - Wireless Process Control Networks
40 95 73 - Process Control Wiring
