Commercial Transformer Installation: What Every Business Should Know

When it comes to powering your commercial facility efficiently and safely, few components are more critical than your electrical transformer. Whether you're expanding operations, upgrading outdated systems, or building from the ground up, a properly installed transformer ensures that your equipment receives the right voltage — reliably, efficiently, and without interruption.

At Werkheiser Electric, we specialize in expert transformer installations for commercial and industrial clients across the region. Here’s what you need to know before, during, and after the installation process.

What Is a Transformer, and Why Is It Important?

A transformer is a device that steps voltage up or down between the power supply and your building’s systems. For example, utilities deliver high-voltage electricity, but most office and manufacturing equipment requires lower, regulated voltage. The transformer makes that adjustment safely.

Without a properly sized and installed transformer:

• Equipment can fail prematurely

• Energy costs may spike due to inefficiencies

• You may risk overheating, outages, or even fire hazards

Key Steps in Commercial Transformer Installation

1. Load Assessment & Planning

Before installation, our electricians assess:

• Current and future electrical load requirements

• Voltage needs for lighting, HVAC, machinery, and IT equipment

• Potential for future expansionWe also verify all code compliance, local utility standards, and safety guidelines.

2. Transformer Selection

We help you choose between:

• Dry-type transformers (ideal for indoor, low-maintenance applications)

• Oil-filled transformers (better for outdoor, high-capacity installations)

• Pad-mounted units (common for commercial and campus environments)

We ensure the unit is sized for both peak and average demand, with proper ventilation and noise consideration.

3. Site Preparation

This includes:

• Structural support (for wall- or floor-mounted units)

• Conduit routing and wiring prep

• Safety barriers or enclosures (especially for outdoor transformers)

4. Installation & Connection

• Positioning and securing the transformer

• Grounding and bonding in accordance with NEC code

• Making all electrical terminations and phase connections

• Running initial tests and power-up protocols

5. Inspection & Commissioning

Once installed, we:

• Perform voltage verification

• Conduct insulation resistance tests

• Review safety measures and thermal performance

• Provide documentation for maintenance teams and compliance audits

Common Signs You Need a Transformer Upgrade

• Flickering or fluctuating power

• Overheating panels or breakers

• Equipment not operating at full performance

• Installing new high-demand equipment (like HVAC, machinery, or EV chargers)

If you’re seeing any of these, it’s time to call in a professional electrician.

Why Werkheiser Electric?

With decades of commercial electrical experience, we bring:

• Licensed, insured electricians trained in commercial code & safety

• Seamless integration with your existing systems

• Scalable solutions for facilities of all sizes

• Ongoing maintenance and support

We work with retail businesses, office complexes, and mixed-use properties — always delivering on time, on budget, and fully code-compliant.

Schedule a Transformer Consultation Today

Whether you're upgrading a legacy system or designing a new facility, transformer installation isn’t a DIY job. Trust Werkheiser Electric to ensure a smooth, efficient, and compliant installation that powers your business for years to come.

Contact us today to schedule a site survey or request a project quote.