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How to Plan Electrical Systems for a Commercial Remodel or Build-Out

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A commercial remodel or build-out is an exciting milestone for any business. Whether you’re expanding your space, reconfiguring a layout, or preparing a new tenant area, it’s a chance to improve how your business functions day to day. But one of the most important parts of the project often doesn’t get the attention it deserves: electrical planning.

Electrical systems affect everything from safety and productivity to energy costs and future growth. When they’re planned well, they quietly support your business for years. When they’re overlooked, they can cause delays, failed inspections, and expensive changes mid-project. Thoughtful electrical planning from the beginning helps your remodel stay on schedule and sets your business up for long-term success.

Why Electrical Planning Should Happen Early

Electrical decisions are much easier—and far less expensive—to make at the start of a project. Once walls are closed, layouts are finalized, and equipment is installed, even small changes can become complicated and costly.

Planning your electrical system early allows you to align power needs with how the space will actually be used. It also helps avoid rework, inspection issues, and last-minute surprises that can slow construction and push budgets higher. For business owners, that early planning often translates to fewer disruptions and a smoother overall project.

Start With How Your Business Will Use the Space

Every commercial space is different, and electrical planning should always begin with function. A professional office, medical clinic, warehouse, and retail space all place very different demands on an electrical system.

Before any wiring plans are finalized, it’s important to think through how the space will operate. Consider how many employees will be working there, what type of equipment will be used, where workstations or machinery will be located, and whether there are customer-facing areas that need specialized lighting or power.

This step helps ensure power is available where it’s actually needed, rather than forcing workarounds later. It also prevents overloaded circuits and inefficient layouts that can limit how your business operates.

Assessing Existing Electrical Infrastructure

In remodels and tenant improvements, the existing electrical system often determines what upgrades are necessary. Many commercial buildings throughout Portland, Milwaukie, and surrounding areas were constructed decades ago and weren’t designed to support modern technology or high-density workspaces.

An electrical evaluation looks at panel capacity, available amperage, wiring condition, grounding, and overall system health. Even if the system is functional, it may not be adequate for expanded operations, new equipment, or updated layouts.

Identifying limitations early allows upgrades to be planned strategically rather than rushed later under pressure.

Planning for Adequate Power and Load Capacity

Underestimating electrical load is one of the most common mistakes in commercial build-outs. Businesses today rely on far more power than they did even a decade ago.

Between computers, servers, HVAC systems, specialty equipment, and modern lighting, electrical demand adds up quickly. Planning should include accurate load calculations that account for both current needs and anticipated growth.

Installing panels and infrastructure with extra capacity during a remodel is far more cost-effective than upgrading again a few years later. It gives your business flexibility and prevents future limitations as operations evolve.

Lighting Design That Supports Safety and Productivity

Lighting is often one of the most noticeable upgrades during a remodel, but it’s also one of the most important from a functional standpoint. Good lighting improves safety, productivity, and energy efficiency while shaping how employees and customers experience the space.

Modern LED lighting offers consistent illumination, lower energy usage, and long-term reliability. Planning should also consider task lighting, emergency and exit lighting, exterior lighting, and controls such as occupancy sensors or automated systems.

A well-designed lighting plan not only meets safety requirements but also creates a more comfortable, professional environment that supports daily operations.

Building Code Compliance From the Ground Up

Electrical code compliance is a critical part of any commercial remodel or build-out. Codes govern everything from circuit protection and grounding to emergency systems and panel labeling.

Because electrical codes evolve, systems that were compliant years ago may no longer meet current requirements once a remodel begins. Addressing compliance during the planning phase helps avoid failed inspections, costly corrections, and project delays.

Working with licensed commercial electricians ensures your system meets all applicable National Electrical Code requirements as well as Oregon and local amendments from the start.

Planning for Technology and Future Expansion

Modern commercial spaces are increasingly technology-driven, and electrical planning should reflect that reality. Even if your business doesn’t need advanced systems today, it’s smart to plan for future upgrades.

This may include installing additional conduit, reserving space for expanded panels, or designing systems that can accommodate automation, data infrastructure, or EV charging. Future-ready planning minimizes disruption when your business grows or adopts new technology.

Coordinating Electrical Work With Other Trades

Electrical planning doesn’t happen in isolation. It must be coordinated with architects, general contractors, HVAC professionals, and other trades to ensure everything fits together seamlessly.

Good coordination helps prevent conflicts between electrical layouts and walls, ceilings, or equipment placement. It also keeps timelines on track and reduces the chance of rework. An experienced electrical contractor plays a key role in keeping communication clear throughout the project.

Permits, Inspections, and Documentation

Commercial electrical work requires permits and inspections to ensure safety and compliance. Navigating these requirements can be time-consuming, especially during a busy remodel.

A professional electrical partner manages permitting, coordinates inspections, and handles any corrections if needed. This keeps your project moving forward and ensures everything is documented properly for future reference, leasing, or resale.

Why Experience Matters in Commercial Electrical Planning

Commercial remodels and build-outs are complex, and electrical systems are too important to treat as an afterthought. Having an experienced commercial electrician involved early helps identify risks, control costs, and ensure your system supports your business long-term.

This level of planning reduces uncertainty and helps business owners make informed decisions that align with both operational needs and budget goals.

Plan With Parkin Electric

Since 1945, Parkin Electric has worked with businesses across the Portland metro area to plan and install dependable commercial electrical systems. Our licensed electricians understand how to design electrical infrastructure that supports real-world operations, meets current codes, and allows room for future growth.

From office remodels and tenant improvements to full commercial build-outs, we partner with business owners and contractors to deliver safe, efficient, and scalable electrical solutions.

Planning a commercial remodel or build-out? Contact Parkin Electric today to discuss your project and make sure your electrical system is designed for long-term success.

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B. Rhoads

Randa demonstrates the height of professionalism and perfectionism. Her attention to detail and response to my fire worries was exceptional finding a breaker that needed replacement as well as something outside that could be a potential hazard. Please share.

N. Schaefle

We Thank you for the work that was done to get power to our garage/shop area and wanted you to know that it was a pleasure to work with Mike.  He was considerate and easy to have here… he did his job carefully and cleaned up where he worked.. He certainly is competent!

D. Peterson

Just wanted to let you know Ben was great. He was professional and personable and helpful with showing us how things worked. I can't remember the name of the other guy (Cristian) but he was great too and they did a great job and cleaned up the area where the generator is. And of course we were so impressed with Tammy and appreciated her help, with our somewhat drawn out process. Very impressed with the service at Parkin.

David D.

Worth every penny, Parkin is the best! 

D. Kost

We were impressed by Dave B’s service and professionalism… I am sure he is not unique to the other techs and employees at Parkin.  We are very satisfied with how we were treated from the point of making an appointment through all of the service.  There is no doubt we will be returning customers for future needs, as well as highly recommending Parkin Electric to everyone we know. 

S. Wilson

I found Brian and Steve to very professional and very skilled electricians.  (Generator Install)

Jeanine K.

Thank you for the great service and responsibility to detail.  I greatly appreciate all the work & customer service that your company gave us.  Kudos to Amanda, Tonya & Chad they are truly an asset to your company.  Our mini split works great &  our inspection passed with flying colors.