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Find Electrical wiring or panel upgrade pros in Knoxville

Avatar for DELTA Electric, LLC

DELTA Electric, LLC

5.00(
2
)
Approved Pro

DELTA Electric, LLC

5.00(
2
)
Approved Pro
5 years of experience
Free onsite estimate

We take great pride our experience, expertise, quality, and customer service that we provide to meet the consumer need. 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.

We take great pride our experience, expertise, quality, and customer service that we provide to meet the consumer need. 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.


Avatar for John C. Flood of Virginia Inc.

John C. Flood of Virginia Inc.

4.61(
44
)
Approved Pro

John C. Flood of Virginia Inc.

4.61(
44
)
Approved Pro
Super Service Award
Customers say: True professional
24 local quotes requested
106 years of experience

For over 120 years, John C. Flood has been a trusted local provider of plumbing, heating, air conditioning (HVAC), and electrical services throughout Maryland, Northern Virginia, and Washington, DC. Our licensed professionals deliver dependable repair, replacement, maintenance, and installation services for homes of all sizes. Whether you need a 24/7 emergency plumber, HVAC repair or replacement, or electrical troubleshooting and upgrades, we’re available 7 days a week at regular service rates. We pride ourselves on expert workmanship, prompt response times, and getting the job done right the first time. John C. Flood also takes pride in giving back to the communities we serve, partnering with organizations such as Habitat for Humanity, Food4Families, Mission 22, Carpenter’s Shelter, StillStanding, Easter Seals, and more. When you choose John C. Flood, you’re choosing trusted service with deep local roots.

"Timely, professional, and personable technician. Provided options for repairs and coordinated an assessment for replacement of system. I’m a customer that was moved with the sale of A-One to John C Flood and I am happy with the transition. The work was on my HVAC system, but that was not listed in the drop down."

rose n on December 2025

For over 120 years, John C. Flood has been a trusted local provider of plumbing, heating, air conditioning (HVAC), and electrical services throughout Maryland, Northern Virginia, and Washington, DC. Our licensed professionals deliver dependable repair, replacement, maintenance, and installation services for homes of all sizes. Whether you need a 24/7 emergency plumber, HVAC repair or replacement, or electrical troubleshooting and upgrades, we’re available 7 days a week at regular service rates. We pride ourselves on expert workmanship, prompt response times, and getting the job done right the first time. John C. Flood also takes pride in giving back to the communities we serve, partnering with organizations such as Habitat for Humanity, Food4Families, Mission 22, Carpenter’s Shelter, StillStanding, Easter Seals, and more. When you choose John C. Flood, you’re choosing trusted service with deep local roots.

"Timely, professional, and personable technician. Provided options for repairs and coordinated an assessment for replacement of system. I’m a customer that was moved with the sale of A-One to John C Flood and I am happy with the transition. The work was on my HVAC system, but that was not listed in the drop down."

rose n on December 2025


Avatar for Beacon Home Services, Inc.

Beacon Home Services, Inc.

4.65(
848
)
Approved Pro

Beacon Home Services, Inc.

4.65(
848
)
Approved Pro
Super Service Award
Customers say: True professional
1003 local quotes requested
24 years of experience

Beacon Home Services is a family owned and operated electrical & plumbing contractor. Our experienced plumbers & electricians have been providing superior services to the Northern Virginia Area since 2002. Our Master technicians are fully licensed and have more than enough experience to insure your satisfaction with our services. We have proven our ability to satisfy customers by reinventing the service industry and putting customer service at the top of our list! Customer safety is also very important to Beacon Home Services. That's why all our employees have gone through background checks so you can be sure that you're in good hands with Beacon Home Services.

"The communication with this company is awesome. You get text messages and/or phone calls updating you up until the moment your technician arrives at your home. You are even provided with lots of Information about the tech that will service your issue. Rebecca and Will were truly amazing today. This is not the first time I have done business with them and look forward to using them again. "

Tammy F on December 2025

Beacon Home Services is a family owned and operated electrical & plumbing contractor. Our experienced plumbers & electricians have been providing superior services to the Northern Virginia Area since 2002. Our Master technicians are fully licensed and have more than enough experience to insure your satisfaction with our services. We have proven our ability to satisfy customers by reinventing the service industry and putting customer service at the top of our list! Customer safety is also very important to Beacon Home Services. That's why all our employees have gone through background checks so you can be sure that you're in good hands with Beacon Home Services.

"The communication with this company is awesome. You get text messages and/or phone calls updating you up until the moment your technician arrives at your home. You are even provided with lots of Information about the tech that will service your issue. Rebecca and Will were truly amazing today. This is not the first time I have done business with them and look forward to using them again. "

Tammy F on December 2025


Avatar for JK Electric, Inc.

JK Electric, Inc.

4.92(
93
)
Approved Pro

JK Electric, Inc.

4.92(
93
)
Approved Pro
Customers say: True professional
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
11 local quotes requested

We offer over 30 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, panel upgrades, and a variety of other jobs. We are committed to providing a personalized service for each individual project we take on and look forward to building strong, long-term relationships with our clients and guarantee your satisfaction. We do accept credit and debit cards.

"Jared did a very professional installation of our EV charger, works perfectly!"

Thorsten A on October 2025

We offer over 30 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, panel upgrades, and a variety of other jobs. We are committed to providing a personalized service for each individual project we take on and look forward to building strong, long-term relationships with our clients and guarantee your satisfaction. We do accept credit and debit cards.

"Jared did a very professional installation of our EV charger, works perfectly!"

Thorsten A on October 2025


Avatar for S&M Electrical Connections, LLC

S&M Electrical Connections, LLC

4.92(
13
)
Approved Pro

S&M Electrical Connections, LLC

4.92(
13
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
6 years of experience

Hello future friends and clients. I am a commercial and residential electrician with16 years’ of experience. I absolutely love what I do and I am an insured, licensed Electrical Master in MD, VA, and DC. I pride myself on having a company that meets a client’s needs in a timely manner at a reasonable cost. We have become an example of quality work, superb technical skills, and excellent customer service. I am eager to make all your electrical connections and visions come to life. It may sound tempting to DIY electrical work, but it is usually not the safest option. Before you know it you have caused bigger problems that will cost even more money. Let my company do your electrical work safely. Whether you need major renovations, or a simple light change I can help. I am bilingual (Spanish/English). My goal is to make you smile at the completion of every project.

"I cannot put in words how thankful I am for S&M! To make a long story short, my County Government demanded that my multi-family property be re-wired and brought up to todayâ s code. Iâ ve never needed electrical work done, therefore I searched local Facebook pages and found S&M. During my initial call, Trish thoroughly explained the process and offered to help. I felt comfortable with Trish, therefore took the chance and leaned on S&M to handle this issue. Trish, Ceasar, Kevin and Hugo were extremely helpful and explained all the work that was being conducted. They went above and beyond. They showed up on time every day, were professional, and cleaned before they left. They obtained the needed permits and communicated with the county and their inspectors in order to get the issue resolved in a timely manner. In summary, S&M took control and handled an extremely stressful situation. They had the knowledge, experience and skills to bring my property to todayâ s code. I will highly recommend S&M to anybody who needs electrical work done!"

Michael B on December 2022

Hello future friends and clients. I am a commercial and residential electrician with16 years’ of experience. I absolutely love what I do and I am an insured, licensed Electrical Master in MD, VA, and DC. I pride myself on having a company that meets a client’s needs in a timely manner at a reasonable cost. We have become an example of quality work, superb technical skills, and excellent customer service. I am eager to make all your electrical connections and visions come to life. It may sound tempting to DIY electrical work, but it is usually not the safest option. Before you know it you have caused bigger problems that will cost even more money. Let my company do your electrical work safely. Whether you need major renovations, or a simple light change I can help. I am bilingual (Spanish/English). My goal is to make you smile at the completion of every project.

"I cannot put in words how thankful I am for S&M! To make a long story short, my County Government demanded that my multi-family property be re-wired and brought up to todayâ s code. Iâ ve never needed electrical work done, therefore I searched local Facebook pages and found S&M. During my initial call, Trish thoroughly explained the process and offered to help. I felt comfortable with Trish, therefore took the chance and leaned on S&M to handle this issue. Trish, Ceasar, Kevin and Hugo were extremely helpful and explained all the work that was being conducted. They went above and beyond. They showed up on time every day, were professional, and cleaned before they left. They obtained the needed permits and communicated with the county and their inspectors in order to get the issue resolved in a timely manner. In summary, S&M took control and handled an extremely stressful situation. They had the knowledge, experience and skills to bring my property to todayâ s code. I will highly recommend S&M to anybody who needs electrical work done!"

Michael B on December 2022


Avatar for TriState Home Services

TriState Home Services

4.64(
195
)
Approved Pro

TriState Home Services

4.64(
195
)
Approved Pro
Customers say: Super punctual
133 local quotes requested
77 years of experience

If you are looking for a HVAC Contractor, a Plumbing Contractor, or an Electrical Contractor to provide you with great service, you've come to the right place. We provide heating services, air conditioning services, plumbing services, and electrical services to our customers in Frederick and the surrounding Counties, the Pan Handle of West Virginia, and Northern Virginia, from our offices located in Frederick MD. With 3 generations of experience in providing heating, air conditioning, plumbing, and electrical services, we are dedicated to providing the best possible products and services for you, and your family.

"Great service very prompt and easy to work with."

Randy W on May 2025

If you are looking for a HVAC Contractor, a Plumbing Contractor, or an Electrical Contractor to provide you with great service, you've come to the right place. We provide heating services, air conditioning services, plumbing services, and electrical services to our customers in Frederick and the surrounding Counties, the Pan Handle of West Virginia, and Northern Virginia, from our offices located in Frederick MD. With 3 generations of experience in providing heating, air conditioning, plumbing, and electrical services, we are dedicated to providing the best possible products and services for you, and your family.

"Great service very prompt and easy to work with."

Randy W on May 2025


Avatar for Kline Electrical Services

Kline Electrical Services

5.00(
2
)
Approved Pro

Kline Electrical Services

5.00(
2
)
Approved Pro
Customers say: Quick response
19 local quotes requested
3 years of experience

The Kline family has been serving customers in Hagerstown, Frederick, Martinsburg, Chambersburg, and Winchester for over 30 years. We are excited to continue our legacy of providing quality electrical services to you and your family into the future. If you are in need of electrical repairs or installations, contact us today. The Kline team consists of some of the most professional and knowledgeable electricians in the four state region. There is nothing that we can't handle. We are a full service company offering comprehensive repair and installation services, and we are ready to take on your project. Below are just a few of the services we offer at Kline: -Surge protection -Electrical panel maintenance and repair -New electrical panel installation -Electrical service upgrades -Meter base install, maintenance, and repair -Electric vehicle (EV) charging stations -Lighting upgrades (LED) -Outlet repair and installations -Generator installs and services -Whole home or partial rewiring services -Full electrical system installs

"Simply amazing from start to finish! I can't say enough nice things about this company or the people that I dealt with. They were all professional, friendly and they did great work. They called me just minutes after I clicked their name on Angi's List and had someone out to give me an estimate and had my appointment date set in record time from most companies that I have dealt with for home improvement. I hate having people in my house working but I felt totally comfortable with them. The work they did was exceptional. We got a new power box (breaker box - whatever it's call) and a new meter and a couple of new outlets put in. We also got new smoke detectors throughout the house. They had to work around some issues and relocate a bit of pipe from out water filter system that was in their way. And they just took care of it without any complaints. I didn't have to do anything. They took care of it all and had the inspector come out and get it approved. I feel safe in my home now. I highly recommend this company and I will be calling them for any future electrical work that I need done."

Linda H on June 2025

The Kline family has been serving customers in Hagerstown, Frederick, Martinsburg, Chambersburg, and Winchester for over 30 years. We are excited to continue our legacy of providing quality electrical services to you and your family into the future. If you are in need of electrical repairs or installations, contact us today. The Kline team consists of some of the most professional and knowledgeable electricians in the four state region. There is nothing that we can't handle. We are a full service company offering comprehensive repair and installation services, and we are ready to take on your project. Below are just a few of the services we offer at Kline: -Surge protection -Electrical panel maintenance and repair -New electrical panel installation -Electrical service upgrades -Meter base install, maintenance, and repair -Electric vehicle (EV) charging stations -Lighting upgrades (LED) -Outlet repair and installations -Generator installs and services -Whole home or partial rewiring services -Full electrical system installs

"Simply amazing from start to finish! I can't say enough nice things about this company or the people that I dealt with. They were all professional, friendly and they did great work. They called me just minutes after I clicked their name on Angi's List and had someone out to give me an estimate and had my appointment date set in record time from most companies that I have dealt with for home improvement. I hate having people in my house working but I felt totally comfortable with them. The work they did was exceptional. We got a new power box (breaker box - whatever it's call) and a new meter and a couple of new outlets put in. We also got new smoke detectors throughout the house. They had to work around some issues and relocate a bit of pipe from out water filter system that was in their way. And they just took care of it without any complaints. I didn't have to do anything. They took care of it all and had the inspector come out and get it approved. I feel safe in my home now. I highly recommend this company and I will be calling them for any future electrical work that I need done."

Linda H on June 2025


Sidike

5.00(
7
)
Approved Pro

Sidike

5.00(
7
)
Approved Pro
Super Service Award
Customers say: Quick response
11 local quotes requested
9 years of experience

We specialize in electrical services, troubleshooting, new construction, service upgrades, repairs, home automations, installs, rewiring, lighting, panel upgrades, EV charging station, ceiling fans, and more. We pride ourselves on the quality work we provide, while delivering great customer service. Please see the services we offer below and call -or- click to schedule an estimate today!

"Matt was wonderful. He completed my request with excellent service. I highly recommend him I will hire him again. 5-Star Review "

Brenda C on October 2025

We specialize in electrical services, troubleshooting, new construction, service upgrades, repairs, home automations, installs, rewiring, lighting, panel upgrades, EV charging station, ceiling fans, and more. We pride ourselves on the quality work we provide, while delivering great customer service. Please see the services we offer below and call -or- click to schedule an estimate today!

"Matt was wonderful. He completed my request with excellent service. I highly recommend him I will hire him again. 5-Star Review "

Brenda C on October 2025


Avatar for Mario Falconio Electric, LLC

Mario Falconio Electric, LLC

5.00(
13
)
Approved Pro

Mario Falconio Electric, LLC

5.00(
13
)
Approved Pro
Super Service Award
6 years of experience
Free onsite estimate

Mario Falconio Electric, LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. We have accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"Mario installed a 240v outlet in my garage. This required a new breaker and about 100 feet of wire. Mario laid out a good plan in running the wire from the box in my basement, through the attic, on out to the garage. He is very efficient and safe with his work. Excellent price!"

William H on October 2025

Mario Falconio Electric, LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. We have accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"Mario installed a 240v outlet in my garage. This required a new breaker and about 100 feet of wire. Mario laid out a good plan in running the wire from the box in my basement, through the attic, on out to the garage. He is very efficient and safe with his work. Excellent price!"

William H on October 2025


Avatar for Mark H. Anderson Electrical Services, Inc.

Mark H. Anderson Electrical Services, Inc.

4.84(
372
)
Approved Pro

Mark H. Anderson Electrical Services, Inc.

4.84(
372
)
Approved Pro
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
36 years of experience

Established in 1990, Mark H. Anderson continues to lead the competition within the Baltimore and surrounding areas. Your home is your castle and you don't take that investment lightly, neither do I. For over sixteen years, discriminating homeowners have looked to Mark H. Anderson for their electrical needs. Our one on one service is our dedication to your vision. Mark H. Anderson Electric prides themselves on an outstanding record of quality service and attention to detail. The foundation of our company has been built by satisfied clients giving us the name of their business associate, neighbor, or friends. Our philosophy is to treat your home as we would our own, and this is complimented by our unprecedented standing within the industry. Our reputation is a testament to the level of service and quality of result you'll get and can expect when you choose Mark H. Anderson for your electrical needs: Experienced: We are experienced in the residential electrical sector. Our company has satisfied customers throughout the metro area. Ask our customers, and they will tell you that there is nothing we can not do when it comes to electrical service. Qualified: Our high quality of experience allows us to quickly determine what the problem is and fix it quickly and safely. Dependable: We are prompt and on time. You will not be left waiting! Honest: We will find the problem and fix it fast! And we will always provide you with the lowest price possible. Neat: We never leave a mess. After our work is done, we do the cleaning. References: We provide customer references upon request, so just ask us. In fact, we will be glad to provide you with proof of our own Maryland Electrical Licenses.

"Response to request was almost immediate and followed up with a phone. He was on time and completed the project in a timely manner. He was knowledgeable and vey polite."

Philomina C on January 2025

Established in 1990, Mark H. Anderson continues to lead the competition within the Baltimore and surrounding areas. Your home is your castle and you don't take that investment lightly, neither do I. For over sixteen years, discriminating homeowners have looked to Mark H. Anderson for their electrical needs. Our one on one service is our dedication to your vision. Mark H. Anderson Electric prides themselves on an outstanding record of quality service and attention to detail. The foundation of our company has been built by satisfied clients giving us the name of their business associate, neighbor, or friends. Our philosophy is to treat your home as we would our own, and this is complimented by our unprecedented standing within the industry. Our reputation is a testament to the level of service and quality of result you'll get and can expect when you choose Mark H. Anderson for your electrical needs: Experienced: We are experienced in the residential electrical sector. Our company has satisfied customers throughout the metro area. Ask our customers, and they will tell you that there is nothing we can not do when it comes to electrical service. Qualified: Our high quality of experience allows us to quickly determine what the problem is and fix it quickly and safely. Dependable: We are prompt and on time. You will not be left waiting! Honest: We will find the problem and fix it fast! And we will always provide you with the lowest price possible. Neat: We never leave a mess. After our work is done, we do the cleaning. References: We provide customer references upon request, so just ask us. In fact, we will be glad to provide you with proof of our own Maryland Electrical Licenses.

"Response to request was almost immediate and followed up with a phone. He was on time and completed the project in a timely manner. He was knowledgeable and vey polite."

Philomina C on January 2025

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FAQs for electrical wiring or panel upgrade projects in Knoxville, MD

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 Knoxville, MD 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.