Proudly serving Greenbelt and the surrounding areas of Prince George’s, Montgomery, Howard, and Anne Arundel counties Maryland. Our team of licensed and experienced master electricians are dedicated to delivering the highest quality workmanship. We stay up-to-date with the latest industry standards and best practices, so you can trust us to provide safe and efficient electrical solutions for your home. We believe in open communication and transparency throughout every project. Our friendly and responsive staff is here to answer your questions, address your concerns, and guide you through the process, from your initial service call to the completion of your project. Call or visit us online to schedule an appointment today!
"Top rate Company, they replaced my electrcal panel and did my pool bonding in Sept 2024. Ryan the Electrician was very professional, prompt and explained everything in detail. The permit inspector said whoever replaced my panel did a great job, did not cut corners. I would highly recommend using them."
Teresa C on October 2024
Proudly serving Greenbelt and the surrounding areas of Prince George’s, Montgomery, Howard, and Anne Arundel counties Maryland. Our team of licensed and experienced master electricians are dedicated to delivering the highest quality workmanship. We stay up-to-date with the latest industry standards and best practices, so you can trust us to provide safe and efficient electrical solutions for your home. We believe in open communication and transparency throughout every project. Our friendly and responsive staff is here to answer your questions, address your concerns, and guide you through the process, from your initial service call to the completion of your project. Call or visit us online to schedule an appointment today!
"Top rate Company, they replaced my electrcal panel and did my pool bonding in Sept 2024. Ryan the Electrician was very professional, prompt and explained everything in detail. The permit inspector said whoever replaced my panel did a great job, did not cut corners. I would highly recommend using them."
Teresa C on October 2024
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
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.
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
With over 10 years of experience in the electrical industry, we are the service professionals you need to take care of your home or business. We handle all types of electrical projects. We will treat your home as we would treat our own. Give Multi MG Services a call today, we look forward to working with you!
"Everything was fantastic, I was very satisfied with the work - I am really in love with the lights that they installed. I would highly recommend this company to friends and family or anybody that wants to hire an electrician."
Homeowner on September 2022
With over 10 years of experience in the electrical industry, we are the service professionals you need to take care of your home or business. We handle all types of electrical projects. We will treat your home as we would treat our own. Give Multi MG Services a call today, we look forward to working with you!
"Everything was fantastic, I was very satisfied with the work - I am really in love with the lights that they installed. I would highly recommend this company to friends and family or anybody that wants to hire an electrician."
Homeowner on September 2022
Nericall LLC offers a wide array of home automation/home theater and A/V services. We will customize it to the client's specific needs. An initial estimate is done and a custom proposal is prepared for the customer depending on needs, recommendations and budget.
"Easily one of the most skilled and comprehensive home automation/electronics installer in the area. Been working with Cristian for over a decade now on various projects. Always dependable. Always gets the job done. Highly skilled."
Ahmed B on June 2024
Nericall LLC offers a wide array of home automation/home theater and A/V services. We will customize it to the client's specific needs. An initial estimate is done and a custom proposal is prepared for the customer depending on needs, recommendations and budget.
"Easily one of the most skilled and comprehensive home automation/electronics installer in the area. Been working with Cristian for over a decade now on various projects. Always dependable. Always gets the job done. Highly skilled."
Ahmed B on June 2024
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
"Robert did my work, he was very thorough, very detailed. This guy is a rock star! Will definitely use them again in the future!"
TROY P on September 2024
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
"Robert did my work, he was very thorough, very detailed. This guy is a rock star! Will definitely use them again in the future!"
TROY P on September 2024
We specialize in electrical services, repairs, installs, lighting, panel upgrades, ceiling fans, and 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 an estimate today!
"They did an excellent job of installing the new panel at a reasonable price. Also they had financing options that were same as cash. I was provided some options of circuit breakers and the price with the options. The differences in breaker were explained and the code requirements for my area was also explained and compared to other local code standards. I was able to customize the options a little bit based on my needs and I have more space in the panel if I have additional requirements. Going from a box from the 1960’s to a modern solution mad a lot of sense. The installation was smooth with only a short time without power. Throughout the process, I was well informed of the progress. My family was able to work remotely from home during most of the install without too much disruption. (Used cell phone for internet and laptops while power was off.) They even installed a monitoring system for me to track the electrical use of the house. Overall they did a great job and I am very satisfied."
Nick L on April 2025
We specialize in electrical services, repairs, installs, lighting, panel upgrades, ceiling fans, and 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 an estimate today!
"They did an excellent job of installing the new panel at a reasonable price. Also they had financing options that were same as cash. I was provided some options of circuit breakers and the price with the options. The differences in breaker were explained and the code requirements for my area was also explained and compared to other local code standards. I was able to customize the options a little bit based on my needs and I have more space in the panel if I have additional requirements. Going from a box from the 1960’s to a modern solution mad a lot of sense. The installation was smooth with only a short time without power. Throughout the process, I was well informed of the progress. My family was able to work remotely from home during most of the install without too much disruption. (Used cell phone for internet and laptops while power was off.) They even installed a monitoring system for me to track the electrical use of the house. Overall they did a great job and I am very satisfied."
Nick L on April 2025
When you have an electrical or plumbing 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 why we have been a trusted electrical and plumbing services company in the area for the past 20+ years. Our technicians have well stocked trucks and are able to do most repairs the same day. We offer 5-star service, same-day services, upfront pricing, as well as various financing options. Our technicians are highly trained and confident in their skills and ability to handle any electrical and plumbing issue in your home and stand behind all our recommended repairs.
"Very good service"
Ed W on October 2024
When you have an electrical or plumbing 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 why we have been a trusted electrical and plumbing services company in the area for the past 20+ years. Our technicians have well stocked trucks and are able to do most repairs the same day. We offer 5-star service, same-day services, upfront pricing, as well as various financing options. Our technicians are highly trained and confident in their skills and ability to handle any electrical and plumbing issue in your home and stand behind all our recommended repairs.
"Very good service"
Ed W on October 2024
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.
"Tri State was prompt—they had a tech out within hours when our 20-year-old HVAC broke down. The repair estimate was $800–$1,200, and they also sent a salesman, Mike, to discuss replacement. Mike was courteous and knowledgeable, but, when we sat down to review the quote, the sales process turned into a bad car-buying experience. They started at $34,000, then "discounted" to $29,300—$10,000 -$12,000 higher than other quotes for the exact same unit. Even factoring in their warranty, they remained $8,000–$10,000 overpriced. Mike also claimed they were a four-generation family-owned business, but I later found out they’re owned by Sila Services, a Goldman Sachs private equity firm—which feels misleading. To their credit, canceling was easy (though I hadn’t signed a financing agreement or put money down). Bottom line: Get multiple quotes. Their pricing was excessive, and the sales tactics felt manipulative."
STUART K on March 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.
"Tri State was prompt—they had a tech out within hours when our 20-year-old HVAC broke down. The repair estimate was $800–$1,200, and they also sent a salesman, Mike, to discuss replacement. Mike was courteous and knowledgeable, but, when we sat down to review the quote, the sales process turned into a bad car-buying experience. They started at $34,000, then "discounted" to $29,300—$10,000 -$12,000 higher than other quotes for the exact same unit. Even factoring in their warranty, they remained $8,000–$10,000 overpriced. Mike also claimed they were a four-generation family-owned business, but I later found out they’re owned by Sila Services, a Goldman Sachs private equity firm—which feels misleading. To their credit, canceling was easy (though I hadn’t signed a financing agreement or put money down). Bottom line: Get multiple quotes. Their pricing was excessive, and the sales tactics felt manipulative."
STUART K on March 2025
A whole-house surge protector blocks voltage spikes from lightning, grid issues, or even large appliances before they can fry your wiring or electronics. By diverting excess current at the main panel, it shields everything from your HVAC to your phone chargers and can extend the life of pricey appliances. Homeowners in storm-prone regions or with older panels see the biggest payoff, but any home that relies on sensitive electronics benefits.
Most whole-house surge protectors work for two to three years. Low-level spikes—too small to notice—hit your panel every day and slowly wear down the internal components. Once the unit’s capacity is depleted, it can’t prevent a larger surge, so plan to replace it on schedule (or sooner if a major lightning strike occurs) to keep your electronics and HVAC equipment safe.
A surge protector begins guarding your circuits the moment an electrician snaps it into place. Whether the spike originates from a nearby lightning strike or your fridge kicking on, the protector shunts the extra current to ground before it can reach outlets or hard-wired systems, such as your AC. That instant response is why a small upfront cost can save thousands in appliance repairs.
The unit mounts on or next to your main electrical panel. Type 1 models sit on the supply side, catching outside spikes before they hit the breaker. Type 2 devices snap inside the panel and tame surges that start within the house. Either way, placement at the panel lets the protector guard every circuit at once.
Plan to swap the device every three to five years—or sooner if you upgrade your panel, add high-demand appliances, or notice flickering lights and tripped breakers. Relying on a maze of power strips is another red flag that your current setup isn’t keeping up. Replacing the surge protector at these milestones keeps your electrical system on safe footing.