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Find Electrical wiring or panel upgrade pros in Union

Avatar for JK Electric, LLC

JK Electric, LLC

4.92(
26
)
Approved Pro

JK Electric, LLC

4.92(
26
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
16 years of experience

We pride our company on reliability, integrity and quality work. When JK Electric, LLC, is hired, we make it a point to provide the highest level of customer service. We work with both residential and commercial clients, and apply the same attention to detail regardless of project size or complexity. We look forward to earning your business! Thank you!

"John and his team put in electric from the pole, underground to a meter box and then to my shed. They also put in lights and electrical plugs inside the shed. The work was done in a professional manner in a timely fashion. Highly recommend this team!!"

Roger V on December 2021

We pride our company on reliability, integrity and quality work. When JK Electric, LLC, is hired, we make it a point to provide the highest level of customer service. We work with both residential and commercial clients, and apply the same attention to detail regardless of project size or complexity. We look forward to earning your business! Thank you!

"John and his team put in electric from the pole, underground to a meter box and then to my shed. They also put in lights and electrical plugs inside the shed. The work was done in a professional manner in a timely fashion. Highly recommend this team!!"

Roger V on December 2021


Lammert Electrical & Wiring Solutions LLC

4.94(
17
)
Approved Pro

Lammert Electrical & Wiring Solutions LLC

4.94(
17
)
Approved Pro
Customers say: Quick response
6 years of experience
Free onsite estimate

With several years experience, we work hard to bring each customer the best possible service and quality available. We look forward to working with you on your next project. We welcome your questions and thank you for your interest.

"Pro completed job as requested."

Scarlotte P on June 2024

With several years experience, we work hard to bring each customer the best possible service and quality available. We look forward to working with you on your next project. We welcome your questions and thank you for your interest.

"Pro completed job as requested."

Scarlotte P on June 2024


Avatar for Recon Electric LLC

Recon Electric LLC

5.00(
18
)
Approved Pro

Recon Electric LLC

5.00(
18
)
Approved Pro
Super Service Award
Customers say: Quality work
152 local quotes requested
3 years of experience

RECON Electric is your local, family owned, reliable electrician. Licensed, bonded, insured. We service residential and commercial clients in the St. Louis and St. Charles County area. At RECON, our standard is exceptional workmanship and we guarantee it! We will deliver 5 star customer service and rapid response times. Call or text us today to find out how we can keep your project on time and on budget!

"Called them out to get a free estimate. Gave 3 diff options for projects. Had to do a little back in forth as I had to amend one of the estimates but once that was done, got on their schedule in less than a week. Techs showed up when they said. Job completed quickly and they cleaned up after themselves. "

Patrick L on December 2025

RECON Electric is your local, family owned, reliable electrician. Licensed, bonded, insured. We service residential and commercial clients in the St. Louis and St. Charles County area. At RECON, our standard is exceptional workmanship and we guarantee it! We will deliver 5 star customer service and rapid response times. Call or text us today to find out how we can keep your project on time and on budget!

"Called them out to get a free estimate. Gave 3 diff options for projects. Had to do a little back in forth as I had to amend one of the estimates but once that was done, got on their schedule in less than a week. Techs showed up when they said. Job completed quickly and they cleaned up after themselves. "

Patrick L on December 2025


Avatar for Recon Electric LLC

Recon Electric LLC

5.00(
3
)
Approved Pro

Recon Electric LLC

5.00(
3
)
Approved Pro
Customers say: Quality work
13 local quotes requested
Free onsite estimate

RECON Electric is your local, family owned, reliable electrician. Licensed, Bonded and Insured. We service residential and commercial customers in the St. Louis and St. Charles County area. At RECON, our standard is exceptional workmanship and we guarantee it! We will deliver 5 star customer service and rapid response times. Call us today to find out how we can keep your project on time and on budget!

"Great! Job done quickly."

Ken T on April 2024

RECON Electric is your local, family owned, reliable electrician. Licensed, Bonded and Insured. We service residential and commercial customers in the St. Louis and St. Charles County area. At RECON, our standard is exceptional workmanship and we guarantee it! We will deliver 5 star customer service and rapid response times. Call us today to find out how we can keep your project on time and on budget!

"Great! Job done quickly."

Ken T on April 2024


Down to the Wire, LLC

5.00(
5
)
Approved Pro

Down to the Wire, LLC

5.00(
5
)
Approved Pro
10 years of experience
Free onsite estimate

We take great pride in our experience, expertise, quality and customer service, that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship, and complete customer satisfaction, from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate, with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large, or small the job. Call us today!

We take great pride in our experience, expertise, quality and customer service, that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship, and complete customer satisfaction, from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate, with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large, or small the job. Call us today!


Avatar for Steve's Handyman Services

Steve's Handyman Services

5.00(
24
)
Approved Pro

Steve's Handyman Services

5.00(
24
)
Approved Pro
Super Service Award
43 local quotes requested
8 years of experience

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"Steve was extremely easy to work with and did an awesome job! I could tell he was dedicated to make sure it was done well and that he takes a lot of pride in his work and making sure the customer is happy! He was super responsive, reached out right away and was ready to check out the job and get to work. I thought pricing was very reasonable too and appreciated he got all the tools and supplies needed to get the job done! I could tell he didn’t waste time, as the work was completed very timely. I definitely plan to keep his information for future handyman needs! "

Chrissy S on January 2026

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"Steve was extremely easy to work with and did an awesome job! I could tell he was dedicated to make sure it was done well and that he takes a lot of pride in his work and making sure the customer is happy! He was super responsive, reached out right away and was ready to check out the job and get to work. I thought pricing was very reasonable too and appreciated he got all the tools and supplies needed to get the job done! I could tell he didn’t waste time, as the work was completed very timely. I definitely plan to keep his information for future handyman needs! "

Chrissy S on January 2026


Avatar for Mr Electric of Central Missouri

Mr Electric of Central Missouri

4.51(
57
)
Approved Pro

Mr Electric of Central Missouri

4.51(
57
)
Approved Pro
Customers say: Quality work
99 local quotes requested
17 years of experience

At Mr. Electric of Central Missouri, our electricians will make sure your property operates at its peak performance level. We can help you upgrade and improve your electrical systems, so they are more energy efficient and secure. Most importantly, we get it right, the first time! We deliver the most comprehensive electrical installations, upgrades or repairs! Call us today and let us make you part of the Mr. Electric of Central Missouri, family! When we visit with you about your home you will find out the price before we get started. Our Service Professionals arrive in a fully stocked van and are ready to get started on your projects. As a value for your visit, we will complete a Home Safety Inspection and familiarize you with your home's electrical experience. We are excited to work with you!

"Easy to work with, ran late arriving and finishing the work, but did a good job."

Elizabeth L on June 2025

At Mr. Electric of Central Missouri, our electricians will make sure your property operates at its peak performance level. We can help you upgrade and improve your electrical systems, so they are more energy efficient and secure. Most importantly, we get it right, the first time! We deliver the most comprehensive electrical installations, upgrades or repairs! Call us today and let us make you part of the Mr. Electric of Central Missouri, family! When we visit with you about your home you will find out the price before we get started. Our Service Professionals arrive in a fully stocked van and are ready to get started on your projects. As a value for your visit, we will complete a Home Safety Inspection and familiarize you with your home's electrical experience. We are excited to work with you!

"Easy to work with, ran late arriving and finishing the work, but did a good job."

Elizabeth L on June 2025


Atoms Electrical Co. LLC

5.00(
5
)
Approved Pro

Atoms Electrical Co. LLC

5.00(
5
)
Approved Pro
2 years of experience

We offer over 20 years of experience in the electrical industry. We take on a wide range of electrical projects to include full installation for additions and remodels as well as wiring and panel upgrades and a variety of other jobs. We’re committed to providing a personalized service for each individual project we take on & look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.

We offer over 20 years of experience in the electrical industry. We take on a wide range of electrical projects to include full installation for additions and remodels as well as wiring and panel upgrades and a variety of other jobs. We’re committed to providing a personalized service for each individual project we take on & look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.


Avatar for SCF Services LLC

SCF Services LLC

5.00(
12
)
Approved Pro

SCF Services LLC

5.00(
12
)
Approved Pro
1 years of experience

We're a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. Our services are customized to the individual project, paying close attention to the details of each project that we're involved with. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guaranteeing your satisfaction!

"He did a great job. Very friendly and on time "

Patty S on August 2025

We're a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. Our services are customized to the individual project, paying close attention to the details of each project that we're involved with. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guaranteeing your satisfaction!

"He did a great job. Very friendly and on time "

Patty S on August 2025


"Great job. I would definitely hire again."

Maureen K on February 2022

We are a full-service electric, media, security and energy solution contractor in St. Louis, MO, built on a strong foundation of good old-fashioned work ethics. Our office hours are M-F 8-4:30, we offer after hours emergency service as well.

"Great job. I would definitely hire again."

Maureen K on February 2022

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FAQs for electrical wiring or panel upgrade projects in Union, MO

While homeowners with substantial electrical knowledge might technically attempt a subpanel installation, most local building departments require permits and inspections for this type of work. Professional electricians understand local code requirements, can obtain necessary permits, and ensure the installation meets safety standards. Given the significant safety risks associated with incorrect electrical work, most homeowners benefit from hiring a licensed professional.

A standard subpanel installation takes an average of four to eight hours. This timeframe may extend if you're installing multiple subpanels or adding specialized circuits like those for spa equipment. Factors such as difficult access points, complex wiring paths, or permit processing times can also affect the overall project duration.

Adding a subpanel doesn't directly reduce electricity consumption or lower your utility bills. A subpanel simply redistributes power from your main panel to additional circuits. However, organizing your electrical system more efficiently may help prevent overloaded circuits and the associated problems. For actual cost savings, consider energy-efficient appliances and lighting instead.

The appropriate subpanel size depends on your specific electrical requirements. Consider the number and type of devices you'll be powering, potential future needs, and the capacity of your main electrical panel. An electrician can perform a load calculation to determine the most suitable amperage rating for your situation, ensuring you have adequate power without overpaying for unnecessary capacity.

A main electrical panel connects directly to your utility's power supply and contains your home's primary service disconnect. It distributes electricity throughout your entire house. A subpanel, by contrast, receives power from the main panel and redistributes it to a specific area of your home. Think of the main panel as the primary distribution point and the subpanel as a secondary branch that extends your electrical system's reach.

While electrical upgrades aren't as immediately visible as kitchen or bathroom renovations, they can contribute to your home's functionality and safety. Prospective buyers often appreciate updated electrical systems that can accommodate modern power demands. A properly installed subpanel that provides additional capacity for workshops, home offices, or future expansions could be an attractive feature for certain buyers, though the direct impact on home value varies by market.

The Union, MO homeowners’ guide to electrical wiring or panel upgrades

From average costs to expert advice, get all the answers you need to get your job done.