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Find Electrical wiring or panel upgrade pros in Bethesda

Avatar for Nasr Electric Inc

Nasr Electric Inc

4.96(
256
)
•Approved Pro

Nasr Electric Inc

4.96(
256
)
•Approved Pro
Customers say: Quality work
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
23 years of experience

Family Owned and Operated. Please call us and you'll be able to talk to our master electrician. To fix any electrical issue at your home or business, you will need a trusted good quality electricians

"I couldn't have asked for a better experience. They were hired to replace the main electrical panel/breakers at my elderly mother's home. Roni, the electrician, was a wonderful communicator, and was very knowledgeable and thorough in completing the job and in putting her at ease. The price was very reasonable. I will be using Nasr Electric in my own home, as well as recommending them to all my friends and family in the DMV area."

Katherine G on August 2025

Family Owned and Operated. Please call us and you'll be able to talk to our master electrician. To fix any electrical issue at your home or business, you will need a trusted good quality electricians

"I couldn't have asked for a better experience. They were hired to replace the main electrical panel/breakers at my elderly mother's home. Roni, the electrician, was a wonderful communicator, and was very knowledgeable and thorough in completing the job and in putting her at ease. The price was very reasonable. I will be using Nasr Electric in my own home, as well as recommending them to all my friends and family in the DMV area."

Katherine G on August 2025

Avatar for Greenleaf Electric, LLC

Greenleaf Electric, LLC

4.95(
111
)
•Approved Pro

Greenleaf Electric, LLC

4.95(
111
)
•Approved Pro
Super Service Award
Customers say: True professional
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
16 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 of wiring for additions and remodels. We also specialize in home standby generator installations, panel upgrades, recessed lighting, smart lighting, Voice/Data/Access Control/CCTV, and much much more. We take pride in our quality of work and our commitment to outstanding results. We are committed to providing personalized service for each individual project we take on. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.

"Gill was great to work with. Provided a fair estimate and delivered on the work promised. He was easy to communicate with and completed the project on time."

Linsey L on January 2026

We offer over 20 years of experience in the electrical industry. We take on a wide range of electrical projects to include full installation of wiring for additions and remodels. We also specialize in home standby generator installations, panel upgrades, recessed lighting, smart lighting, Voice/Data/Access Control/CCTV, and much much more. We take pride in our quality of work and our commitment to outstanding results. We are committed to providing personalized service for each individual project we take on. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.

"Gill was great to work with. Provided a fair estimate and delivered on the work promised. He was easy to communicate with and completed the project on time."

Linsey L on January 2026

Avatar for William G Hyman Electrical Contractor

William G Hyman Electrical Contractor

4.86(
431
)
•Approved Pro

William G Hyman Electrical Contractor

4.86(
431
)
•Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
46 years of experience

Voted Best service for over 50 years. Our trained experienced electricians can offer you a full range electrical work from expert troubleshooting & repair of electrical systems, installation of new outlets, switches, lighting and other electrical installation services. Whether it is one light fixture or a comprehensive wiring service upgrade or Heavy-Up, we have the necessary tools, knowledge and experience to turn your plan into reality. For immediate service or help answering any questions, please don't hesitate to call 301-622-1777 or email us directly. service@hymanelectric.com

"I was very satisfied with the service provided by the William Hyman Electrical Contractor team. The electricians were very professional and efficient. They resolved the electrical issues in a timely manner. Very respectful of home and family members. I would highly recommend this company."

zetta l on August 2025

Voted Best service for over 50 years. Our trained experienced electricians can offer you a full range electrical work from expert troubleshooting & repair of electrical systems, installation of new outlets, switches, lighting and other electrical installation services. Whether it is one light fixture or a comprehensive wiring service upgrade or Heavy-Up, we have the necessary tools, knowledge and experience to turn your plan into reality. For immediate service or help answering any questions, please don't hesitate to call 301-622-1777 or email us directly. service@hymanelectric.com

"I was very satisfied with the service provided by the William Hyman Electrical Contractor team. The electricians were very professional and efficient. They resolved the electrical issues in a timely manner. Very respectful of home and family members. I would highly recommend this company."

zetta l on August 2025

Avatar for GAC Services

GAC Services

4.80(
279
)
•Approved Pro

GAC Services

4.80(
279
)
•Approved Pro
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
56 years of experience

GAC Services is a residential cooling, heating, and electrical contractor setting new standards in the Maryland HVAC and electric market. Since 1970, we’ve developed a strong reputation for providing the Montgomery County and Frederick County areas with reliable cooling and heating services. In 2014, we expanded our service offerings to include electrical services—allowing us to offer our customers the same great service in a new area of business. Additional DBA: Gaithersburg Heating & Cooling

"Highly professional, knowledgeable and well behaved technician. Prices offered were good too. I definitely recommend the company."

Deepak U on February 2025

GAC Services is a residential cooling, heating, and electrical contractor setting new standards in the Maryland HVAC and electric market. Since 1970, we’ve developed a strong reputation for providing the Montgomery County and Frederick County areas with reliable cooling and heating services. In 2014, we expanded our service offerings to include electrical services—allowing us to offer our customers the same great service in a new area of business. Additional DBA: Gaithersburg Heating & Cooling

"Highly professional, knowledgeable and well behaved technician. Prices offered were good too. I definitely recommend the company."

Deepak U on February 2025

Avatar for D&G Remodeling

D&G Remodeling

5.00(
36
)
•Approved Pro

D&G Remodeling

5.00(
36
)
•Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
10 years of experience

Electric company established in 2016. Family owned. Commercial and residential electrical repairs & new installations. Renovations & additions. Main panel upgrades, low voltage lighting installations, car charging stations, and lot more. We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"David was great had to replace circuit brake drove farther to get the best priced breaker for my dryer price was great. Fast service"

TIMOTHY M on February 2026

Electric company established in 2016. Family owned. Commercial and residential electrical repairs & new installations. Renovations & additions. Main panel upgrades, low voltage lighting installations, car charging stations, and lot more. We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"David was great had to replace circuit brake drove farther to get the best priced breaker for my dryer price was great. Fast service"

TIMOTHY M on February 2026

Avatar for Beacon Home Services

Beacon Home Services

4.78(
923
)
•Approved Pro

Beacon Home Services

4.78(
923
)
•Approved Pro
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
24 years of experience

When you have an electrical, plumbing, or HVAC issue, you want it solved quickly for the safety and comfort of you and your family. Our technicians genuinely care about our customers, which is one of the reasons we’ve been a trusted electrical, plumbing, and HVAC services company in the area for over 20 years. Our technicians arrive in well-stocked trucks and are able to complete most repairs the same day. We offer 5-star service, same-day appointments, upfront pricing, and a variety of financing options. Our highly trained technicians are confident in their skills and ability to handle any electrical, plumbing, or HVAC issue in your home—and we stand behind all of our recommended repairs.

"I had a very disappointing experience with Beacon Home Services. This company charges extremely high prices for even the most basic repairs. I needed a simple leak fixed in my gas water heater?a job that took no more than 10?15 minutes?and the cost was outrageously high. Their customer service was equally frustrating. They were rude, unhelpful, and promised to call me back but never did. The lack of professionalism was obvious at every step. I strongly recommend staying away from this company. Save your money and look for a reputable service provider that values honesty, fair pricing, and respectful communication."

N N on February 2026

When you have an electrical, plumbing, or HVAC issue, you want it solved quickly for the safety and comfort of you and your family. Our technicians genuinely care about our customers, which is one of the reasons we’ve been a trusted electrical, plumbing, and HVAC services company in the area for over 20 years. Our technicians arrive in well-stocked trucks and are able to complete most repairs the same day. We offer 5-star service, same-day appointments, upfront pricing, and a variety of financing options. Our highly trained technicians are confident in their skills and ability to handle any electrical, plumbing, or HVAC issue in your home—and we stand behind all of our recommended repairs.

"I had a very disappointing experience with Beacon Home Services. This company charges extremely high prices for even the most basic repairs. I needed a simple leak fixed in my gas water heater?a job that took no more than 10?15 minutes?and the cost was outrageously high. Their customer service was equally frustrating. They were rude, unhelpful, and promised to call me back but never did. The lack of professionalism was obvious at every step. I strongly recommend staying away from this company. Save your money and look for a reputable service provider that values honesty, fair pricing, and respectful communication."

N N on February 2026

Avatar for AMEW Electrical Services

AMEW Electrical Services

4.98(
70
)
•Approved Pro

AMEW Electrical Services

4.98(
70
)
•Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
15 years of experience

AMEW Electrical is a licensed and insured company with expertise in a variety of electrical work and related areas. We are also Certified Tesla Wall charger installers. The methods we employ are modern and reliable. We use the latest technology to seamlessly execute your project and will be glad to explain the work we are performing in easy-to-understand terms. We will get right to the point and won't confuse you with professional terminology. We guarantee quality work and courteous customer service, before as well as after the job. For more information and a list of our services, please visit our website at www.amewelectrical.com Thanks, we look forward to serving you!

"10/10 recommend. I hired him to move a light fixture to the center of my office and he changed the fixture. He walked me through everything as he was working. We ran into some minor hiccups but was able to solve it. He explained different scenarios when moving my light fixture to the center of the room and even encouraged me to do some research on some things. I plan to hire him again for future electrical work. "

Keyshawna B on February 2026

AMEW Electrical is a licensed and insured company with expertise in a variety of electrical work and related areas. We are also Certified Tesla Wall charger installers. The methods we employ are modern and reliable. We use the latest technology to seamlessly execute your project and will be glad to explain the work we are performing in easy-to-understand terms. We will get right to the point and won't confuse you with professional terminology. We guarantee quality work and courteous customer service, before as well as after the job. For more information and a list of our services, please visit our website at www.amewelectrical.com Thanks, we look forward to serving you!

"10/10 recommend. I hired him to move a light fixture to the center of my office and he changed the fixture. He walked me through everything as he was working. We ran into some minor hiccups but was able to solve it. He explained different scenarios when moving my light fixture to the center of the room and even encouraged me to do some research on some things. I plan to hire him again for future electrical work. "

Keyshawna B on February 2026

Avatar for Ahmad Electrical Service

Ahmad Electrical Service

4.93(
46
)
•Approved Pro

Ahmad Electrical Service

4.93(
46
)
•Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
11 years of experience

Ahmad Electrical Service is your trusted electrical expert in Richmond. With years of experience, we specialize in providing top-notch electrical services for homeowners. Our team of skilled professionals is dedicated to delivering exceptional results, ensuring your home projects are completed safely and efficiently. Contact Ahmad Electrical Service today for all your electrical needs.

"Fantastic job. Did it all in one day. Thank you "

Jose P on February 2026

Ahmad Electrical Service is your trusted electrical expert in Richmond. With years of experience, we specialize in providing top-notch electrical services for homeowners. Our team of skilled professionals is dedicated to delivering exceptional results, ensuring your home projects are completed safely and efficiently. Contact Ahmad Electrical Service today for all your electrical needs.

"Fantastic job. Did it all in one day. Thank you "

Jose P on February 2026

Avatar for Vital Electric

Vital Electric

5.00(
26
)
•Approved Pro

Vital Electric

5.00(
26
)
•Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
7 years of experience

We are a Union trained company, with a Licensed and insured Journeyman Electrician. We have experience since 2014. We are able to troubleshoot and resolve any electrical issues. We specialize in Heavy ups, Generators, New installs, EV chargers, and many more projects. Customer satisfaction tops our priority list. We are Minority owned. Read more below on all the services we offer and contact us with any questions or to schedule a free estimate today!

"Ludwing was on time, courteous and professional. He was knowledgeable regarding his craft and reasonable with price. I would recommend his services to my family and friends."

Natasha B on October 2025

We are a Union trained company, with a Licensed and insured Journeyman Electrician. We have experience since 2014. We are able to troubleshoot and resolve any electrical issues. We specialize in Heavy ups, Generators, New installs, EV chargers, and many more projects. Customer satisfaction tops our priority list. We are Minority owned. Read more below on all the services we offer and contact us with any questions or to schedule a free estimate today!

"Ludwing was on time, courteous and professional. He was knowledgeable regarding his craft and reasonable with price. I would recommend his services to my family and friends."

Natasha B on October 2025

Avatar for Three Brothers Services, LLC

Three Brothers Services, LLC

4.97(
57
)
•Approved Pro

Three Brothers Services, LLC

4.97(
57
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
17 years of experience

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We have many years of experience to give you confidence that we are your number one choice for your next home project. You will find us to be competitively priced with close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction! Licensed & Bonded Maryland Home Improvement #141947 Maryland Master Electrician #14130 Virginia Master Electrician #2710073038

"Three Brothers is the best. We have hired Saul and team for several electrical projects both big and small over the past few years. They have never disappointed. Highly recommend for any electrical needs."

David G on July 2023

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We have many years of experience to give you confidence that we are your number one choice for your next home project. You will find us to be competitively priced with close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction! Licensed & Bonded Maryland Home Improvement #141947 Maryland Master Electrician #14130 Virginia Master Electrician #2710073038

"Three Brothers is the best. We have hired Saul and team for several electrical projects both big and small over the past few years. They have never disappointed. Highly recommend for any electrical needs."

David G on July 2023

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FAQs for electrical wiring or panel upgrade projects in Bethesda, 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 Bethesda, 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.

See all articles