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Find Electrical wiring or panel upgrade pros in Bethesda

Avatar for One Source, LLC

One Source, LLC

5.00(
5
)
Approved Pro

One Source, LLC

5.00(
5
)
Approved Pro
Customers say: Quick response
11 years of experience
Free onsite estimate

One Source Systems is one of the premier custom integrators in the greater Washington D.C. area. We are focused on an elevated client experience and meeting your needs for Smart Home design, including experiential elements such as lighting, shades and incredible dedicated theater and Audio/Video solutions. With over 10 years of experience in the audio industry, we are the experts you need to take care of your home or business. We will treat your home as we would treat our own. Give One Source a call today - we look forward to working with you!

"They stayed all day arriving at like 10:00am to get the job done and didn’t leave until like 11:30pm"

Steve B on July 2021

One Source Systems is one of the premier custom integrators in the greater Washington D.C. area. We are focused on an elevated client experience and meeting your needs for Smart Home design, including experiential elements such as lighting, shades and incredible dedicated theater and Audio/Video solutions. With over 10 years of experience in the audio industry, we are the experts you need to take care of your home or business. We will treat your home as we would treat our own. Give One Source a call today - we look forward to working with you!

"They stayed all day arriving at like 10:00am to get the job done and didn’t leave until like 11:30pm"

Steve B on July 2021


Avatar for DELTA Electric, LLC

DELTA Electric, LLC

5.00(
2
)
Approved Pro

DELTA Electric, LLC

5.00(
2
)
Approved Pro
4 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 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
16 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


Avatar for Absolute Electric LLC

Absolute Electric LLC

4.87(
841
)
Approved Pro

Absolute Electric LLC

4.87(
841
)
Approved Pro
Customers say: Super punctual
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
392 local quotes requested

I am passionate about and take pride in my craft. Our philosophy is to treat your home or place of business as if it were our own. If you are not satisfied with our service, please contact me or our Service Manager, Rob, because our goal is your satisfaction. We want you as a customer for life, not just to make a quick buck. Call us today at 571.525.2823, as we look forward to discussing your electrical needs. Regards, Shauwn Collins, Owner

"Excellent and professional service. I would highly recommend Absolute Electric."

Brenda L on October 2025

I am passionate about and take pride in my craft. Our philosophy is to treat your home or place of business as if it were our own. If you are not satisfied with our service, please contact me or our Service Manager, Rob, because our goal is your satisfaction. We want you as a customer for life, not just to make a quick buck. Call us today at 571.525.2823, as we look forward to discussing your electrical needs. Regards, Shauwn Collins, Owner

"Excellent and professional service. I would highly recommend Absolute Electric."

Brenda L on October 2025


Avatar for Mr. Electric of Bethesda

Mr. Electric of Bethesda

4.96(
13
)
Approved Pro

Mr. Electric of Bethesda

4.96(
13
)
Approved Pro
Customers say: Quick response
184 local quotes requested
2 years of experience

Mr. Electric of Bethesda is the top notch company for all of your service and repair needs We focus on quality, professionalism, and skill. We take pride in our client retention by providing you the best service available. Call us today, we look forward in working for you!

"Daniel reached out right away to process our EV charger installation inquiry and was able to schedule us for a site visit within a matter of days. The technician, Emanuel, was patient in reviewing all of our options and fielding our various questions during the initial project assessment as well as during the installation process. We did not feel rushed in our decision making and feel that they were the best for the job. We are happy to have been connected with them via Angi and look forward to utilizing them for future work at our home. "

Elizabeth V on October 2025

Mr. Electric of Bethesda is the top notch company for all of your service and repair needs We focus on quality, professionalism, and skill. We take pride in our client retention by providing you the best service available. Call us today, we look forward in working for you!

"Daniel reached out right away to process our EV charger installation inquiry and was able to schedule us for a site visit within a matter of days. The technician, Emanuel, was patient in reviewing all of our options and fielding our various questions during the initial project assessment as well as during the installation process. We did not feel rushed in our decision making and feel that they were the best for the job. We are happy to have been connected with them via Angi and look forward to utilizing them for future work at our home. "

Elizabeth V on October 2025


Avatar for William G Hyman Electrical Contractor

William G Hyman Electrical Contractor

4.89(
396
)
Approved Pro

William G Hyman Electrical Contractor

4.89(
396
)
Approved Pro
Customers say: Super punctual
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
60 local quotes requested

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 D&G Remodeling

D&G Remodeling

5.00(
35
)
Approved Pro

D&G Remodeling

5.00(
35
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
99 local quotes requested

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!

"They were great—came out same day, reasonable price, and they were very nice and easy to work with. Will def use again for any electrical needs."

Ellie F on August 2025

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!

"They were great—came out same day, reasonable price, and they were very nice and easy to work with. Will def use again for any electrical needs."

Ellie F on August 2025


"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 Kolb Electric Inc

Kolb Electric Inc

4.38(
200
)
Approved Pro

Kolb Electric Inc

4.38(
200
)
Approved Pro
Customers say: Super punctual
146 local quotes requested
100 years of experience

We are a family owned and operated business that has been serving the Baltimore, Washington Metropolitan area since 1925. We are committed to providing superior electrical services. The valuable advantages we can offer you are great service, high quality and experienced workers at a competitive price.

"Do not use this company. They will rip you off. The contract was for eight 300W LED 40 ft pole lights, but I caught them redhanded installing 240W. Who does that? Then, they broke my lock and broke into my sprinkler room which I saw on my video which they admitted. Then, Kolb sued me for not paying the bill which I disputed due to lost tools as result of the break-in. Who does that breaking into a customer's sprinkler room and not informing that they did. I had to catch them on my video. Not only that it took over one year to the work proposed work. TOTAL FRAUD. I will be going to court...."

John A on November 2023

We are a family owned and operated business that has been serving the Baltimore, Washington Metropolitan area since 1925. We are committed to providing superior electrical services. The valuable advantages we can offer you are great service, high quality and experienced workers at a competitive price.

"Do not use this company. They will rip you off. The contract was for eight 300W LED 40 ft pole lights, but I caught them redhanded installing 240W. Who does that? Then, they broke my lock and broke into my sprinkler room which I saw on my video which they admitted. Then, Kolb sued me for not paying the bill which I disputed due to lost tools as result of the break-in. Who does that breaking into a customer's sprinkler room and not informing that they did. I had to catch them on my video. Not only that it took over one year to the work proposed work. TOTAL FRAUD. I will be going to court...."

John A on November 2023


Avatar for Beacon Home Services, Inc.

Beacon Home Services, Inc.

4.65(
838
)
Approved Pro

Beacon Home Services, Inc.

4.65(
838
)
Approved Pro
Customers say: True professional
1009 local quotes requested
23 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.

"Nelson was very professional, got the issue resolved quickly, would definitely recommend and use Beacon Home Services again. "

Sara D on November 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.

"Nelson was very professional, got the issue resolved quickly, would definitely recommend and use Beacon Home Services again. "

Sara D on November 2025

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

Electrical wiring can last between 50 and 70 years if properly installed and maintained. However, factors like moisture damage and overloading outlets can shorten this lifespan. To extend your wiring's life, unplug electronics when not in use, avoid overloading outlets, and schedule regular electrical inspections every five to ten years.

If your house was built in the 1960s and hasn't been rewired, it likely needs it. Older homes may have outdated wiring like knob-and-tube, which poses fire risks due to flammable insulation. Rewiring ensures safety and may also require updating your circuit panel, outlets, switches, and fixtures. Contact a local electrician to help with your rewiring needs.

Yes, rewiring your house is worth it, especially if your wiring is outdated. It improves safety by reducing fire risks and can increase your property's value. However, you may not need a full rewire. A home inspector can tell you if a partial rewire will bring your home up to code.

Yes, you can sometimes rewire a house without removing walls. Electricians might access wiring through attics, basements, or crawl spaces, or make small holes to run new wires. However, this isn't always possible, and in some cases, removing sections of walls is necessary to ensure the wiring is installed safely and meets code.

A house should typically be rewired every 25 years to maintain safety. Over time, wiring deteriorates, increasing fire risks. Regular electrical inspections every five to ten years help assess the need for rewiring. Staying proactive with maintenance ensures a safe, efficient electrical system and prevents potential hazards before they become serious issues.

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.