Get Quotes Contact Us Sign In
Website
Call
NSI Electrical Contractors NSI Electrical Contractors services encompasses everything electric, from basic wiring repair to complex industrial installations. Our family-owned company has been in business for over 35 years in the southeast Wisconsin area. NSI designs, manages, and provides electrical solutions for residential multi-family, commercial, and industrial properties.

Serving Commercial, Industrial and Multi-Family Residential clients for over 35 years. NSI Electrical Contractors INC are experienced and ready to install or service your business electrical needs.
Services
In 1983, Lee Balthazor formed NSI Electrical Contractors, Inc. to provide electrical services to southeast Wisconsin. Today, this family-based business has developed a culture of continuous learning and a steadfast commitment to ethics and integrity. These values, along with a proven history of excellent customer satisfaction are the foundation upon which NSI Electrical Contractors continues to grow.
NSI Electrical Contractors performs electrical installations and maintenance for a variety of restaurants, big-box retail stores, apartment buildings, hotels, and retirement facilities. We install outlets, lighting, and wiring systems that meet the specific needs of large and small businesses. Our commercial wiring projects place an emphasis on safety and efficiency. See more information about why we are one the premier commercial and residential electrical contractors in Milwaukee and Madison.
NSI Electrical Contractors, Inc is a full-service electrical contractor serving Southeastern Wisconsin. Businesses in Milwaukee, Madison, and the surrounding area depend on us for electrical maintenance, new construction, design-build and 24/7 emergency service. Our CAD designed industrial electrical systems have propelled us even further into the industrial space to deliver creative solutions to complex problems.
NSI Electrical Contractors welcomes applications from those interested in serving their electrician apprenticeship in an environment founded on principles of customer service, integrity, hard work, and safety first. As part of the NSI team, you will work with some of the best master electricians and project managers in Wisconsin.
Reviews (2)
Write a Review
Fernanda Reikdal
Apr 11, 2021
Excellent service, all under regulation. The team is also extremely friendly and talented. Highly recommend! Services: Electrical outlet & switch repair, Light fixture installation, Electrical outlet & switch installation
Miriam Castanho Bollinger
Jan 14, 2021
We hired NSI during the remodeling of our kitchen. The entire process was smooth and extremely professional. Great communication with the everyone in the company. The gentleman working in our home was always on time, was extremely respectful, easy to work with and trustworthy. If you need electrical work, look no further. The best in town.