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Electrical wiring or panel upgrade pros in Gaithersburg

Avatar for One Source, LLC

One Source, LLC

7914 Queenair Drive
5.00(
5
)
Approved Pro

One Source, LLC

7914 Queenair Drive
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

20013 Sweetgum Circle Apartment 41
5.00(
2
)
Approved Pro

DELTA Electric, LLC

20013 Sweetgum Circle Apartment 41
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 Green Light Electrical Contractors

Green Light Electrical Contractors

66 E Main St #204
5.00(
3
)
Approved Pro

Green Light Electrical Contractors

66 E Main St #204
5.00(
3
)
Approved Pro
8 years of experience

When you call GLEC, you get a master electrician providing you the highest quality work at a fraction of the cost. You are losing out big time when calling a large electrical company! They will send an unqualified employee, and you will pay the overhead for them to learn on your property. We at Green Light Electrical Contractors strive to maintain our reputation as a high quality, very service oriented company with our main focus being customer satisfaction.

"Ryan responded to the request immediately, had great availability and showed up promptly. I had a strange issue where I had 2 circuits crossed that was causing issues with my HVAC unit and lighting (likely caused from my own DIY efforts). He offered a fair rate and was able to quickly troubleshoot and resolve the issue. I would recommend them for any small or large projects because of his transparency, skill level and professionalism. Green Light will go into my "Rolodex" for any future electrical issues..."

Atiba B on July 2025

When you call GLEC, you get a master electrician providing you the highest quality work at a fraction of the cost. You are losing out big time when calling a large electrical company! They will send an unqualified employee, and you will pay the overhead for them to learn on your property. We at Green Light Electrical Contractors strive to maintain our reputation as a high quality, very service oriented company with our main focus being customer satisfaction.

"Ryan responded to the request immediately, had great availability and showed up promptly. I had a strange issue where I had 2 circuits crossed that was causing issues with my HVAC unit and lighting (likely caused from my own DIY efforts). He offered a fair rate and was able to quickly troubleshoot and resolve the issue. I would recommend them for any small or large projects because of his transparency, skill level and professionalism. Green Light will go into my "Rolodex" for any future electrical issues..."

Atiba B on July 2025


Avatar for Three Brothers Services, LLC

Three Brothers Services, LLC

12202 Amblewood Drive
4.97(
57
)
Approved Pro

Three Brothers Services, LLC

12202 Amblewood Drive
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 Beacon Home Services, Inc.

Beacon Home Services, Inc.

10498 Colonel Ct #101
4.67(
826
)
Approved Pro

Beacon Home Services, Inc.

10498 Colonel Ct #101
4.67(
826
)
Approved Pro
Customers say: True professional
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
778 local quotes requested

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.

"Cesar did a wonderful job - thank you Beacon Home Services!"

Amin M on August 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.

"Cesar did a wonderful job - thank you Beacon Home Services!"

Amin M on August 2025


C T Smith Electrical Services, LLC

2238 Cape Horn Road
4.87(
289
)
Approved Pro

C T Smith Electrical Services, LLC

2238 Cape Horn Road
4.87(
289
)
Approved Pro
Customers say: Quality work
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
11 local quotes requested

Locally owned and owner operated. Quality Workmanship on every job! Carl Smith has over 25 years of experience and established C T Smith Electrical Service, LLC.Trained Pro's on every job.

"The gentlemen that came to work were very professional and when I moved forward with the project, they were fast and efficient. I initially wanted just the EV charger installed and requested additional work done."

eric r on April 2025

Locally owned and owner operated. Quality Workmanship on every job! Carl Smith has over 25 years of experience and established C T Smith Electrical Service, LLC.Trained Pro's on every job.

"The gentlemen that came to work were very professional and when I moved forward with the project, they were fast and efficient. I initially wanted just the EV charger installed and requested additional work done."

eric r on April 2025


Avatar for Mark H. Anderson Electrical Services, Inc.

Mark H. Anderson Electrical Services, Inc.

3090 Sleepy Meadow Dr.
4.84(
372
)
Approved Pro

Mark H. Anderson Electrical Services, Inc.

3090 Sleepy Meadow Dr.
4.84(
372
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
35 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


Horizon Services, LLC (MD)

2607 N Rolling Rd
New on HomeAdvisorNew on HomeAdvisor
Approved Pro

Horizon Services, LLC (MD)

2607 N Rolling Rd
New on HomeAdvisorNew on HomeAdvisor
Approved Pro
13 local quotes requested
36 years of experience

Horizon Services (MD), LLC, is the regions largest and most well respected plumbing, heating and air conditioning company, with nearly 600 employees serving tens of thousands of homeowners throughout Delaware, Southeastern Pennsylvania, Southern New Jersey and Northeastern Maryland. After a quarter of a century in business, Horizon Services (MD), LLC, remains fully committed to setting the industry standard for customer service, installation and focusing on things that are important to busy homeowners.

Horizon Services (MD), LLC, is the regions largest and most well respected plumbing, heating and air conditioning company, with nearly 600 employees serving tens of thousands of homeowners throughout Delaware, Southeastern Pennsylvania, Southern New Jersey and Northeastern Maryland. After a quarter of a century in business, Horizon Services (MD), LLC, remains fully committed to setting the industry standard for customer service, installation and focusing on things that are important to busy homeowners.


Avatar for Clinton Electric Company, Inc.

Clinton Electric Company, Inc.

1524 York Rd
4.28(
144
)
Approved Pro

Clinton Electric Company, Inc.

1524 York Rd
4.28(
144
)
Approved Pro
Customers say: Quality work
240 local quotes requested
56 years of experience

For 50 years and two generations, Clinton Electric Company, Inc., has been the premier electrical contractor in Maryland. Since 1969, we have taken great pride in providing excellent electrical service to over 50,000 loyal customers in the Greater Baltimore area. With over 80% of our business coming from repeat customers and referrals, we take that as a great vote of confidence in Clinton Electric!

"The technician was friendly and courteous. I understood that they needed to charge an inspection fee , but what seemed excessive and unfair was the categorization of diagnostic levels that raised the cost of the service call beyond what I considered a reasonable expense for the type of repair needed. For this reason, I cannot recommend this company. It would have been better to work with a company that charges an hourly rate. I will never use this company again- the fees they charge for the service rendered despite their politeness and friendliness are simply too costly. The determination that a pump servicing a fountain needed to be replaced cost me $500 plus their inspection fee. Outrageous!"

Jay M on June 2025

For 50 years and two generations, Clinton Electric Company, Inc., has been the premier electrical contractor in Maryland. Since 1969, we have taken great pride in providing excellent electrical service to over 50,000 loyal customers in the Greater Baltimore area. With over 80% of our business coming from repeat customers and referrals, we take that as a great vote of confidence in Clinton Electric!

"The technician was friendly and courteous. I understood that they needed to charge an inspection fee , but what seemed excessive and unfair was the categorization of diagnostic levels that raised the cost of the service call beyond what I considered a reasonable expense for the type of repair needed. For this reason, I cannot recommend this company. It would have been better to work with a company that charges an hourly rate. I will never use this company again- the fees they charge for the service rendered despite their politeness and friendliness are simply too costly. The determination that a pump servicing a fountain needed to be replaced cost me $500 plus their inspection fee. Outrageous!"

Jay M on June 2025


Avatar for Powerworks LLC

Powerworks LLC

14025 Reverend Boucher Place
4.61(
27
)
Approved Pro

Powerworks LLC

14025 Reverend Boucher Place
4.61(
27
)
Approved Pro
Customers say: Quick response
9 years of experience
Free onsite estimate

At PowerWorks in the DMV area, we are proud to offer a wide variety of services to suit your needs. Each service will be performed by and or under the supervision of our Master Electrician, so you know your project is in good hands. We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. No projects are too small or too big, we are here to help all new and returning clients.

"We had an excellent experience with our electrician who installed our EV charger. From start to finish, the service was top-notch. Antonio arrived exactly on time, was courteous and professional throughout the entire process, and clearly takes pride in his work. The installation was done in a timely manner. Everything was completed to a high standard, and you can tell the quality is built to last. He also took the time to explain the setup and answer any questions we had, which we really appreciated. In addition, Belvin was prompt to schedule us and was efficient in responding to our inquiries such providing us the needed documents for rebate application. Highly recommend to anyone looking for reliable, professional electrical work. We’ll definitely be calling again for future projects! "

Marco M on August 2025

At PowerWorks in the DMV area, we are proud to offer a wide variety of services to suit your needs. Each service will be performed by and or under the supervision of our Master Electrician, so you know your project is in good hands. We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. No projects are too small or too big, we are here to help all new and returning clients.

"We had an excellent experience with our electrician who installed our EV charger. From start to finish, the service was top-notch. Antonio arrived exactly on time, was courteous and professional throughout the entire process, and clearly takes pride in his work. The installation was done in a timely manner. Everything was completed to a high standard, and you can tell the quality is built to last. He also took the time to explain the setup and answer any questions we had, which we really appreciated. In addition, Belvin was prompt to schedule us and was efficient in responding to our inquiries such providing us the needed documents for rebate application. Highly recommend to anyone looking for reliable, professional electrical work. We’ll definitely be calling again for future projects! "

Marco M on August 2025

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FAQs for electrical wiring or panel upgrade projects in Gaithersburg, 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 Gaithersburg, 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.
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Electrician wiring house
Nov 16, 2024
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Estimate the cost to rewire a house based on the key factors. Our guide covers different wire types, permits, and ways to save on electrical system upgrades.
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Feb 10, 2025
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Learn how to budget for the cost of rewiring a house based on factors like house size, age, permits, and type of wiring.
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Budget for the cost to install under-cabinet lighting based on factors such as fixture type, materials, lighting style, professional labor, and more.
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Apr 9, 2025
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ceiling with recessed lighting installed
Apr 9, 2025
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