D&D offers installation and maintenance services for commercial entities including:  pole extensions for new buildings, existing service upgrades or repair work. D&D also designs, maintains and repairs street and parking lot lighting.

Commercial contracting services include:

• Upgrading existing service and repair work
• Pole extensions for new building
• High voltage installation and repairs
• Street and parking lot lighting
• Power service and distribution
• Feeders and branch circuitry
• Lighting installations and upgrades
• Power factor evaluations
• Grounding and lightning protection