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.

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. With over three decades of electrical project management experience, we are committed to deliver customer-centric solutions to new and established Wisconsin businesses.

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.

What's new?

What a fantastic surprise we just received! Not only they are yummy but they are gorgeous! Thank you Home Pro Digital for this adorable surprise. You sure know how to spoil your clients! #homeprodigital #evivamedia #cookieskidsandc haos

Posted on Jan 22, 2021  •  Facebook

NSI has once again partnered with a great General Contractor, Scherrer Construction, to build the new Middle School in Burlington, WI. Great job NSI Team! https:// journaltimes.com /news/local/ burlingtons-new- middle-school-o n-schedule-to-o pen-in-fall-202 1/ article_eb80107f -80d5-5c2f-8128.

Posted on Dec 16, 2020  •  Facebook

Thank you Carolyn for your feedback! Bob is a phenomenal electrician! #nsielectricalco ntractors

Posted on May 13, 2020  •  Facebook

NSI is very proud to have been the Electrical Contractor for this project. Great job guys! #nsielectricalco ntractors #ourelectricians rock

Posted on May 09, 2020  •  Facebook

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