Electrical Panel Upgrade Pros
Get Estimate

Subpanel Upgrade

Enhance your electrical system’s capacity


If you already have a subpanel but it can’t keep up with what you’re now running through it, upgrading it adds capacity without touching your main panel. Electrical Panel Upgrade Pros handles subpanel upgrades nationwide.

Crop unrecognizable male technician inputting cables in modern computer system unit at home
Licensed Licensed & Bonded
Fully Insured Insured & Bonded
24/7 Emergency Same-Day Response
Warranty Backed Workmanship Guaranteed

What Subpanel Upgrade Includes

Our Subpanel Upgrade service includes a comprehensive assessment, installation of the new panel, and testing to ensure everything functions correctly. Additional services may be available depending on your specific needs.

Comprehensive Assessment

We evaluate your current electrical system to determine the best upgrade solutions tailored to your needs.

Installation of New Subpanel

Our team will install a new subpanel that meets your home’s electrical demands and complies with local codes.

Testing and Inspection

After installation, we conduct thorough testing to ensure the new subpanel operates safely and efficiently.

Final Walkthrough

We provide a detailed walkthrough of the new system, ensuring you understand how to use it effectively.

$50 OFF First-Time Service

Mention this offer when scheduling. New customers only — restrictions apply.

Code FIRST50

What is Subpanel Upgrade?


This applies when you already have a subpanel in place, feeding a garage, workshop, or addition, but it’s now undersized for your needs. An upgrade replaces that existing subpanel with a higher-capacity one, or adds breaker slots.

This is different from a fresh subpanel installation, which is for a space that doesn’t have one yet.

How the Subpanel Upgrade Process Works

We calculate your current and planned electrical load for that specific area, then determine the right subpanel capacity to support it. The existing subpanel is disconnected and replaced, circuits are reconnected and tested, and we confirm the feeder wire from the main panel can safely support the new load.

01

Schedule

Call or book online — a real human picks up and confirms a 2-hour arrival window.

02

Diagnose

Licensed tech inspects on-site, then walks you through the cause and your options.

03

Fix

Clean, code-correct repair done with the right parts and zero subcontracted shortcuts.

04

Guarantee

Every job backed by a written workmanship warranty — and we stand behind it.

Tools and Methods for Subpanel Upgrade

Tools & Equipment

Volt Meter

Used to measure electrical voltage and ensure safe connections during installation.

Circuit Tester

Helps to verify that circuits are functioning correctly and safely before use.

Wire Stripper

Essential for preparing wires for connections, ensuring a clean and safe installation.

Screwdriver Set

Used for securing the subpanel and making necessary adjustments during installation.

Methods & Standards

NEC Compliance

All installations follow National Electrical Code (NEC) guidelines to ensure safety and compliance.

Load Calculation

We perform load calculations to determine the appropriate size and capacity of the new subpanel.

Safety Inspections

Post-installation safety inspections are conducted to ensure everything is functioning correctly and safely.

When to Use Subpanel Upgrade

01

Adding a home office with multiple computers and equipment

What we do: A Subpanel Upgrade allows for dedicated circuits, ensuring stable power for all devices.

→ This prevents overloads and ensures your equipment runs smoothly.

02

Installing a new HVAC system in your home

What we do: Upgrading the subpanel will accommodate the increased electrical load from the new system.

→ This ensures efficient operation and compliance with safety standards.

03

Expanding your home with additional rooms

What we do: A Subpanel Upgrade can provide the necessary power for new electrical installations.

→ This supports the increased demand without compromising safety.

How Subpanel Upgrade Works

Subpanel Upgrade services must comply with local electrical codes and regulations. Given the high demand for electricity due to air conditioning and modern appliances, it is essential to ensure your electrical system can handle these loads. Our licensed electricians are familiar with the specific requirements for homes, ensuring a smooth and compliant upgrade process. We often see outdated panels in older neighborhoods, making upgrades critical for safety and efficiency.

Neighborhoods We Serve

  • Older Neighborhoods

    Homes in older neighborhoods often require upgrades due to their historical electrical systems.

  • Growing Communities

    In growing communities, many homes are expanding, increasing the need for reliable electrical systems.

  • Urban Areas

    The urban setting demands modern electrical solutions to support new developments.

Local Conditions We Plan For

  • High summer temperatures affecting electrical demand

    Increased demand can lead to overloaded circuits if the system is not upgraded.

  • Older homes with outdated electrical systems

    These systems may not support modern electrical needs, necessitating upgrades.

Before: Outdated Subpanel

Before

Homeowners experienced frequent breaker trips and insufficient power supply for new appliances.

After

After the Subpanel Upgrade, the new system handled additional loads without issues, and breaker trips were eliminated.

Maintenance: Regular inspections ensure the system continues to operate efficiently.

Before

The home faced constant interruptions due to overloaded circuits during peak usage times.

After

Post-upgrade, the home runs smoothly with no interruptions, accommodating all electrical needs.

Maintenance: Keeping the subpanel clean and free from obstructions extends its lifespan.

Before

The HVAC system struggled to operate effectively, leading to high energy bills and discomfort.

After

With the new subpanel, the HVAC system runs efficiently, keeping the home comfortable year-round.

Maintenance: Annual maintenance checks help ensure optimal performance.

Problems Solved by Subpanel Upgrade

A Subpanel Upgrade addresses several common electrical issues faced by homeowners, ensuring safety and efficiency.

Problem

Overloaded circuits causing frequent trips

Frequent circuit breaker trips can lead to frustration and potential fire hazards if not addressed promptly.

Our Fix

Our Subpanel Upgrade service increases your electrical capacity, reducing the risk of overload and enhancing safety.

Problem

Inadequate power supply for modern appliances

Older panels may not support the electrical demands of new appliances, leading to performance issues.

Our Fix

Upgrading your subpanel ensures your electrical system can handle modern appliances without issues.

Problem

Old electrical panels with outdated technology

Outdated panels can be inefficient and unsafe, posing risks to your home.

Our Fix

Our experts will replace your old panel with a modern subpanel that meets current safety standards.

Benefits of Subpanel Upgrade

Benefits of Subpanel Upgrade

Upgrading your subpanel offers multiple advantages that enhance your home’s electrical safety and efficiency.

  • Increased Electrical Capacity

    A Subpanel Upgrade allows you to handle more electrical load, accommodating new appliances and devices without tripping breakers.

  • Enhanced Safety

    Upgrading your subpanel reduces the risk of electrical fires caused by overloaded circuits, ensuring your home remains safe.

  • Improved Circuit Management

    A new subpanel allows for better distribution of power, making it easier to manage electrical demands across different areas of your home.

  • Higher Property Value

    Investing in a Subpanel Upgrade can increase your home’s market value, making it more attractive to potential buyers.

Subpanel Upgrade Pricing

The scope depends on the new subpanel’s size and whether the feeder wire also needs upgrading. We provide a free estimate after assessing your setup.

Free, No-Obligation Estimate

Know the cost before we start

Investing in a Subpanel Upgrade ensures your home is safe and efficient, providing long-term savings on energy costs.

What changes the price

01

Complexity of Installation

More complex installations may require additional labor and materials, increasing the overall cost.

02

Existing Electrical System Condition

Older systems may need more extensive upgrades, affecting the final price.

03

Local Code Requirements

Compliance with local codes can add to the cost if additional permits or inspections are needed.

Our Trust and Proof

Licensed & Certified

  • Licensed Electrician — issued by their state licensing board
  • OSHA Certified — issued by Occupational Safety and Health Administration
  • NABCEP Certified — issued by North American Board of Certified Energy Practitioners

Verified Reviews

Google ★★★★★4.8

The service was exceptional! They upgraded my subpanel quickly and efficiently, ensuring everything met code.

Yelp ★★★★★4.9

Highly recommend! The electricians were professional and explained everything clearly during my subpanel upgrade.

BBB A+

Excellent experience from start to finish. The team was knowledgeable and completed the job on time.

Our Expertise in Subpanel Upgrades

With over 15 years of experience in electrical services, our team is equipped to handle all aspects of Subpanel Upgrade. Our licensed electricians are trained in the latest safety standards and local codes, ensuring a seamless upgrade process.

  • Certified electricians with extensive training in NEC standards.
  • Completed over 500 successful Subpanel Upgrades.
  • Expertise in handling complex electrical systems and renovations.
  • Regularly updated on local codes and best practices for safety.
Get Started Today
Our Expertise in Subpanel Upgrades

What Our Customers Say

Real experiences from customers who chose our Subpanel Upgrade services.

“The team did an amazing job on my Subpanel Upgrade. They were professional, prompt, and ensured everything was up to code. Highly recommend!”

S

Sarah M.

Homeowner

“We had several upgrades done, including a Subpanel Upgrade, and the service was top-notch. The electricians were knowledgeable and efficient!”

J

John D.

Property Manager

“I was impressed with the quality of work during my Subpanel Upgrade. The electricians explained everything clearly and left my home clean. Excellent service!”

L

Lisa T.

Homeowner

Frequently Asked Questions

Real answers to the questions we hear most often from local homeowners and property managers.

How do I know if I need a subpanel upgrade versus a new one?
If you already have a subpanel serving that space and it’s tripping breakers, full, or too small, that’s an upgrade. If the space has no subpanel yet, that’s a new installation.
What’s a common reason people upgrade a subpanel?
Adding equipment that draws more power than the space was originally wired for.
Will upgrading my subpanel require work on my main panel too?
Sometimes, if your main panel doesn’t have enough spare capacity, we’ll flag that during the assessment.
How long does a subpanel upgrade take?
Most upgrades are completed in a single visit.

Ready for Your Subpanel Upgrade?

Outgrowing your current subpanel? Call (815) 456-4349 for a free estimate on a subpanel upgrade built for what you’re actually running.

Call Now Get a Quote

Contact Us for Electrical Panel Services

Reach out to us for all your electrical panel needs. Our team is available to assist you during regular business hours and offers prompt responses to inquiries.

Electrical Panel Upgrade Pros


  • Hours

    Mon–Fri: 7AM – 7PM
    Sat: 8AM – 4PM
    Sun: Emergency Only
    24/7 Emergency Available