Your Turnkey Partner for Modular Solutions

Industrial electrical projects are often complex and time sensitive – modular solutions can help. With electrical expertise in design, manufacturing, integration, testing, installation, and commissioning, Interstates is a turnkey modular partner. Our factory-built modular solutions for power and controls allow work to advance off-site while site construction continues, improving certainty in cost, schedule, quality, delivery, and start-up. Whether you need a repeatable modular solution, configurable e-house product, or a custom solution, we can align the approach with your facility, equipment, and long-term operating needs.

Built for Greater Project Certainty

Integrated Electrical Expertise

Electrical design, manufacturing, and field experience work together to support manufacturability, cost efficiency, code compliance, and project requirements.

Factory Acceptance Tested 

Every modular e-house undergoes factory acceptance testing (FAT), with major systems checked for functionality before shipment. 

Field-Ready Documentation 

Testing and project records support installation, commissioning, maintenance, and future service in the field. 

Strength by Design 

Each modular electrical building is engineered and manufactured for structural integrity and long-term performance. 

A Modular Solution for Every Project 

Interior view of a modular electrical building featuring rows of electrical switchgear, overhead cable trays, ventilation systems, fire safety equipment, and an emergency exit door.

Program Modular Solutions

Best for ongoing needs, phased projects, multi-site work, or higher-volume production, our repeatable modular programs use standardized workflows and consistent quality practices to support similar builds over time. Interstates can coordinate production across our three manufacturing locations and has the capacity to support higher-volume modular programs while maintaining consistent design, documentation, testing, and execution from one unit to the next.


Exterior view of a large gray modular electrical building with an attached HVAC unit, access doors, and metal panel siding under a clear blue sky.

Configurable Modular Products

Best for applications that do not require a fully custom design, our configurable modular products provide a faster, more predictable path to a prefabricated electrical building. Each product begins begins with a standardized modular framework and defined configuration options, helping reduce design time and simplify evaluation. This approach provides flexibility within a proven structure while improving cost and schedule predictability.

Configurable Modular E-House


Worker wearing a hard hat, safety glasses, and gloves installs or adjusts a component on a large industrial HVAC unit inside a manufacturing facility.

Custom Modular Solutions 

Best for unique site constraints, specialized equipment layouts, or complex electrical requirements, our custom modular solutions are designed around your facility, process, equipment, and operating needs. Interstates provides electrical expertise, design support, 3D modeling, and design optimization to address manufacturability, cost efficiency, and code compliance. We have turnkey support from engineering and fabrication through testing, installation, commissioning, maintenance, and service.  


Featured E-House Product Configurable Modular E-House

A configurable modular e-house provides a structured approach to modular electrical infrastructure for industrial applications. Built around standardized design practices and configurable technical specifications, these solutions help project teams define the right e-house approach with greater clarity and efficiency. 

Each solution is configured around the project’s electrical, structural, environmental, and site-specific requirements. Inputs such as power distribution, motor control, automation, low-voltage needs, HVAC, finishes, and accessories are reviewed during configuration to confirm application fit and identify items needing additional evaluation.

Product Information
3D rendering of a modular industrial electrical building with exterior equipment, double entry doors, and a metal roof.

Modular Solutions in Action

Explore project examples and resources that show how Interstates applies modular construction, electrical expertise, and turnkey delivery to real-world needs.

Row of industrial electrical control panels with indicator lights and switches mounted inside an electrical equipment room.

Project Example

Modular Innovation at Ovation Farms

See how Interstates used 24 modular electric rooms, prefabricated main electric rooms, and detailed planning tools to support a large-scale cage-free egg-laying facility while improving safety, reducing on-site labor hours, and helping maintain an aggressive project schedule.

Learn More
Interior of an industrial electrical room with rows of gray electrical cabinets, some doors open, overhead cable trays and conduit, and a clean concrete floor.

Blog Article

Keeping Complex Projects on Track

Learn how four complete, factory-tested e-houses helped a client reduce on-site risk, manage schedule pressure, and support long-term facility performance.

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Row of industrial electrical control cabinets with switches and disconnects inside an electrical equipment room.

Blog Article

Containerized Mill Expansion

Explore how a containerized modular solution helped a mill expand its electrical capacity while reducing field work and disruption to ongoing operations.

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Modular industrial electrical building with metal siding and open entry doors inside a manufacturing facility.

Blog Article

Maximize Value with Modular

Discover how early planning, off-site fabrication, integrated testing, and turnkey execution can improve project value and reduce overall risk.

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Modular Solutions FAQs

Answers to common questions about planning, building, and delivering modular electrical rooms. 

Consider a modular e-house when schedule certainty, limited site labor, reduced trade stacking, consistent quality, or parallel off-site construction would benefit the project. It can also be effective when your facility has space constraints, requires repeatable electrical rooms, or needs a solution that can be installed with minimal on-site disruption. 

Yes. Each modular solution undergoes factory acceptance testing (FAT) before shipment. Major systems are checked for functionality, and project documentation is prepared to support installation, commissioning, maintenance, and future service once the unit arrives on-site. 

Off-site fabrication allows the electrical room to be built while site construction progresses in parallel. A controlled manufacturing environment supports consistent quality, reduces site congestion and trade stacking, and enables testing before shipment. These advantages can reduce commissioning time and improve certainty around cost, schedule, delivery, and start-up. 

Yes. Interstates can support the full project lifecycle, including design and engineering, equipment integration, manufacturing, factory acceptance testing (FAT), delivery coordination, installation, commissioning, maintenance, and service. The scope can be tailored to your project and internal capabilities. 

Early involvement in budgeting, pre-design, or conceptual planning gives us the greatest opportunity to optimize layout, select the preferred equipment, advance manufacturability, improve cost, stay on schedule, and integrate with your site. Interstates can also evaluate projects later in development, but earlier collaboration generally creates more options and reduces avoidable changes and costs. 

Yes. Interstates supports phased, multi-site, and higher-volume programs through repeatable processes, standardized workflows, consistent quality practices and three manufacturing locations in Iowa, Kansas, and Colorado. Our team can develop a common design and documentation approach while adapting defined elements to each site or phase. 

Partner with a Team That Can Deliver

Connect with Interstates to discuss your project needs and see how our manufacturing capabilities, electrical expertise, and turnkey support can help move your project forward.

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