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Commercial Electrical Services

Milwaukee Commercial Electrical Services

For nearly 100 years, Lemberg Electric has provided trusted, comprehensive electrical services to commercial businesses across Milwaukee and Southeastern Wisconsin. Our team delivers everything from new system installations and upgrades to repairs, retrofits, and ongoing maintenance. And when the unexpected happens, we’re here with reliable 24/7 emergency support.

Whether you manage a corporate office, retail space, multi-tenant building, entertainment venue, or specialty commercial facility, Lemberg is the electrical partner you can count on to keep your building safe and functional.

Table of Contents:

Why Commercial Electrical Work Requires a Trusted Expert

Commercial buildings depend on complex electrical systems that must operate safely to support employees, customers, tenants and daily business operations. That’s why you need an electrical contractor with deep industry experience, a contractor who understands commercial codes, energy-efficient solutions, and the long-term value of proper maintenance.

Our union-trained commercial electricians bring the expertise and reliability your business depends on. Our team follows NEC, OSHA, and all local codes to ensure every installation or upgrade meets the highest standards of safety and compliance. We also understand the importance of minimizing disruption, communicating clearly, and keeping projects on schedule.

No matter the service you need, you have a trusted electrical partner who’s just a call away. Contact us today!

The Design-Build Advantage

Through our design-build process, we partner with architects, engineers, general contractors, and facilities teams from day one. This upfront collaboration streamlines the construction process, reduces delays, and ensures that our electrical systems are seamlessly integrated into the overall project design, whether it’s a new build or a renovation.

Our Commercial Electrical Services

Electrical Installations, Upgrades and  Expansion Projects

Our commercial electrical services include:

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Electrical System Design and Installation

Custom electrical solutions for offices, retail stores, schools, entertainment venues, and more.


• Electrical power and distribution
• Low and medium-voltage services

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Commercial Lighting Solutions

Energy-efficient LED upgrades, lighting design, and smart lighting controls that improve safety and reduce costs.


• Interior and exterior lighting, including parking lot lighting
• Programmable Logic Controls (PLC) for lighting systems

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Tenant Build-Outs and Remodels

Full-service electrical support for new tenants, expansions, or renovated and reconfigured spaces.

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Data and Communications Cabling

Structured cabling, low-voltage systems, and connectivity for today’s digital business environments.


• Building access control systems
• Security cameras
• Low-voltage network cabling

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Building Automation Systems (BAS)

Integration of energy management, HVAC controls, and security systems for smarter, more efficient buildings.

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Fire Alarm Installation and Service

Complete fire alarm system installation, testing, inspection, and maintenance.

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Backup Power & Protection Systems

Reliable solutions to keep your business running during outages or storms.

• Backup generators
• Storm damage repair
• Lightning protection systems

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Preventive Electrical Maintenance Programs

Routine inspections and customized EPMs to reduce downtime and prevent costly issues.

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Emergency 24/7 Electrical Services

Fast response to urgent electrical issues to keep your business up and operating.

Commercial Industries We Serve

Lemberg supports a wide range of commercial facilities across Milwaukee and Southeastern Wisconsin, including:

  • Retail Stores and Shopping Centers
  • Corporate Offices and Business Parks
  • Car Dealerships and Service Centers

Beyond traditional commercial spaces, our team also delivers electrical solutions across a broad range of industries and other specialty environments, including:

Additional Industries We Serve
  • Healthcare Facilities
  • Industrial and Manufacturing Facilities (including food processing)
  • Institutional and Educational Facilities
  • Multitenant Residential & Senior Living
  • Arts, Entertainment and Sports Venues
  • Restaurants, Hotels and Hospitality Spaces
  • Civic and Government Buildings
  • IT and Data-Driven Environments

Take a look at our complete project gallery to see how we support facilities across every industry.

Renewable and Green Energy Solutions

Sustainability is a growing priority for commercial building owners, and we’re here to help you integrate energy-saving technologies that reduce costs and support long-term performance. We also assist with Wisconsin’s Focus on Energy program to help maximize incentives.

Our green energy services include:

Learn more about our green energy solutions.

Electrical Maintenance and 24/7 Emergency Support

Your commercial facility depends on reliable electrical systems to remain safe and operational. Our preventive electrical maintenance programs help you:

  • Reduce equipment failure and downtime
  • Extend the life of your electrical systems
  • Improve energy efficiency
  • Maintain NFPA and NEC compliance

Our team works directly with property managers to implement ongoing maintenance strategies tailored to your building’s size and energy demands. When emergencies happen, Lemberg provides 24/7 emergency electrical service to quickly diagnose and resolve issues with minimal disruption.

Download our Free Electrical Preventive Maintenance Guide.

View Our Commercial Projects

Why Choose Lemberg Electric?

Choosing Lemberg means choosing nearly a century of experience in delivering reliable, code-compliant commercial electrical services. Our team is known for:

  • Trusted expertise backed by 100 years of service
  • Union-trained, licensed electricians
  • Design-build capabilities for streamlined project efficiency
  • Commitment to safety, compliance, & quality
  • 24/7 support for businesses of every size

Commercial Electrical FAQs

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What is included in commercial electrical services?

Commercial work includes installation, maintenance, lighting, power distribution, fire alarms, security cabling, energy upgrades, EV chargers, and more.

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Do you provide commercial electrical maintenance plans?

 Yes, we customize preventive maintenance programs for buildings of all sizes.

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Can you help with commercial remodels or tenant buildouts?

 Absolutely. We support renovations, expansions, and flexible use of space.

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Do you offer 24/7 emergency electrical service?

Yes. Our emergency response team is available around the clock.

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Can Lemberg assist with energy-efficient upgrades?

 Yes, including LED retrofits, BAS controls, EV chargers, and solar.

 

Contact Our Commercial Electrical Team

Lemberg Electric is proud to be Milwaukee’s trusted commercial electrical contractor. Our team delivers everything your commercial facility needs—system upgrades, preventive maintenance, new construction expertise, and dependable emergency service—to ensure safety, reliability, and long-term performance.

Contact us today to discuss your commercial project or electrical service needs.

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