Business Details
43 Years
experience
Emergency
services
Trusted Electrical Services in New Berlin, WI
NSI Electrical Contractors has served Southeastern Wisconsin for over 40 years as a family-owned business specializing in electrical solutions for commercial, industrial, and residential properties. Founded in 1983, the company combines decades of hands-on experience with advanced CAD design capabilities to deliver safe, efficient systems tailored to client needs. Our team of certified master electricians and project managers prioritizes continuous training, maintaining a strong safety record and industry-leading expertise. We provide 24/7 emergency services and comprehensive project management from initial design to final installation.With a focus on long-term client relationships, NSI serves Milwaukee, Madison, and surrounding areas, handling everything from small repairs to complex industrial systems. Our commitment to quality has earned recognition as one of Wisconsin's premier electrical contractors. Through strategic growth and technical innovation, we remain dedicated to exceeding client expectations while maintaining our core values of integrity and service excellence.
Services
Electrical Installation
Commercial Wiring
Industrial Systems
Residential Services
Emergency Repairs
Details
- Year established: 1983
Highlights and features
- We have over 40 years of electrical contracting experience in Wisconsin
- Our team includes certified master electricians with advanced CAD training
- We maintain a 0.91 workers compensation experience modification rating for safety
- 24/7 emergency electrical services available to commercial and industrial clients
- We use advanced CAD technology for precise electrical system design
Associations and certifications
- Associated Builders and Contractors (ABC)
- State of Wisconsin
What people say
Amazing job
Extra efforts
Transition a success
Highly adept
Steadfast commitment
Services
Electrical Installation
We provide comprehensive electrical installation services for new construction projects including commercial buildings, industrial facilities, and multi-family residential complexes. Our certified electricians implement modern wiring systems that meet all safety codes while optimizing energy efficiency. From initial design to final inspection, our team ensures reliable power distribution systems tailored to each property's specific needs.
Commercial Wiring
Our commercial wiring solutions cater to businesses ranging from retail stores to office buildings, ensuring safe and efficient electrical systems. We specialize in complex installations that meet industry-specific requirements while maintaining minimal disruption to operations. Our team combines technical expertise with practical understanding of commercial electrical demands to deliver durable, code-compliant systems.
Industrial Electrical Systems
We design and install industrial electrical systems for manufacturing facilities and warehouses using advanced CAD technology. Our solutions handle high-power requirements while maintaining safety standards in demanding environments. From motor control centers to distribution panels, we provide robust electrical infrastructure that supports continuous industrial operations.
Residential Electrical Services
We offer complete residential electrical services including system upgrades, panel replacements, and lighting installations for multi-family housing units. Our team handles both new construction and renovation projects with attention to detail and code compliance. We specialize in creating safe, efficient electrical systems that meet modern residential demands.
24/7 Emergency Repairs
Our emergency repair service provides immediate response for electrical failures and urgent issues affecting businesses and properties. Available 24 hours a day, our trained technicians handle power outages, equipment failures, and safety hazards with rapid diagnosis and repair. We maintain specialized equipment to address emergencies efficiently while minimizing downtime.
People
Andrew Balthazor
President
Master Electrician with 35+ years experience, leading NSI since 2010. Expanded safety programs and professional education initiatives while maintaining Wisconsin's top electrical standards.
Jacob Leitzke
Vice President
25+ years in electrical contracting, progressing from apprentice to leadership. Specializes in commercial projects and client relationship management across Wisconsin's construction industry.
Steve Marsicek
Project Manager
CAD specialist with 25+ years at NSI, designing electrical systems for diverse projects including senior living facilities and industrial complexes using advanced visualization tools.
Nick Semenske
Project Manager
Master Electrician with 20+ years experience, transitioning from field operations to project management. Brings practical insights to commercial and industrial electrical projects across Wisconsin.
Kyle Emrich
Service Manager
15+ years with NSI, rising from apprentice to master electrician. Manages service operations and project management while maintaining technical expertise in electrical systems.
Questions
What areas do you serve?
We serve Southeastern Wisconsin including Milwaukee, Madison, New Berlin, and surrounding communities for all electrical needs.
Do you offer emergency services?
Yes, we provide 24/7 emergency electrical services with immediate response for urgent repair needs.
What industries do you specialize in?
We specialize in commercial, industrial, and multi-family residential electrical systems with CAD design capabilities.
Are your electricians certified?
Yes, we employ Wisconsin-certified master electricians and maintain ongoing professional training programs.
How do I request a quote?
Contact us at 414-761-4660 or through our website to schedule a consultation and receive a detailed project estimate.
What safety standards do you follow?
We maintain Wisconsin's highest safety standards with ongoing training programs and a proven 0.91 workers compensation experience rating.
