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Avatar for C H Tel. & TV Co., Inc.

C H Tel. & TV Co., Inc.

4.93(
366
)
Approved Pro

C H Tel. & TV Co., Inc.

4.93(
366
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
45 years of experience

For over 40 years, our goal has been to ensure the complete satisfaction of every customer, while offering knowledgeable and friendly service at affordable rates. Established in 1980, we have gained the experience of being able to provide nearly any type of telephone service, T.V. mounting and attic antenna installation that you require. We are equipped to handle all of your low voltage cabling needs be it voice, data, TV, fiber, or ethernet. Our goal is to stay in touch with any changes in our industry, so that we can always offer you the latest and most current information and services. Our mission is: To serve our customers with the extensive knowledge and expertise we have gained in our industry, while continually offering them the finest in customer service.

"I had a problem with my old landline phone system. First I called Verizon, but their technician could not solve the problem. Then I contacted CH Tel. Charlie called back promptly and sent a technician, Rick, the same day. Rick was very knowledgeable and thorough. He was able to find the problem and install a new line. While he was here he also solved some long-standing problems I had with loose wires and an open phone box. He was also very respectful of my property and did a good job cleaning up after the work. I would highly recommend this company for low-voltage wiring projects."

Christine K on November 2025

For over 40 years, our goal has been to ensure the complete satisfaction of every customer, while offering knowledgeable and friendly service at affordable rates. Established in 1980, we have gained the experience of being able to provide nearly any type of telephone service, T.V. mounting and attic antenna installation that you require. We are equipped to handle all of your low voltage cabling needs be it voice, data, TV, fiber, or ethernet. Our goal is to stay in touch with any changes in our industry, so that we can always offer you the latest and most current information and services. Our mission is: To serve our customers with the extensive knowledge and expertise we have gained in our industry, while continually offering them the finest in customer service.

"I had a problem with my old landline phone system. First I called Verizon, but their technician could not solve the problem. Then I contacted CH Tel. Charlie called back promptly and sent a technician, Rick, the same day. Rick was very knowledgeable and thorough. He was able to find the problem and install a new line. While he was here he also solved some long-standing problems I had with loose wires and an open phone box. He was also very respectful of my property and did a good job cleaning up after the work. I would highly recommend this company for low-voltage wiring projects."

Christine K on November 2025


Long Electric, LLC

4.96(
129
)
Approved Pro

Long Electric, LLC

4.96(
129
)
Approved Pro
Super Service Award
Customers say: Quality work
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
15 years of experience

I am Jason Long, founder and master electrician of Long Electric, LLC. I started my electrical career at age 17, and have moved full force to obtain my Master Electrical License amongst many other specialty licenses in the Frederick, and Montgomery Counties. Long Electric, LLC, is proud to note that they have participated in custom building and remodeling awards from the National Association of the Remodeling Industry and custom builder awards, and continues to work closely with many of the renowned high end general contractors in the area. Long Electric, LLC, prides ourselves on customer satisfaction, shown forth by a majority word of mouth and referral based clientele. Therefore, your electrician will not rest until you do!

"Very professional from beginning to end, I would certainly use Long electric for other projects in the future......"

Francisco R on December 2025

I am Jason Long, founder and master electrician of Long Electric, LLC. I started my electrical career at age 17, and have moved full force to obtain my Master Electrical License amongst many other specialty licenses in the Frederick, and Montgomery Counties. Long Electric, LLC, is proud to note that they have participated in custom building and remodeling awards from the National Association of the Remodeling Industry and custom builder awards, and continues to work closely with many of the renowned high end general contractors in the area. Long Electric, LLC, prides ourselves on customer satisfaction, shown forth by a majority word of mouth and referral based clientele. Therefore, your electrician will not rest until you do!

"Very professional from beginning to end, I would certainly use Long electric for other projects in the future......"

Francisco R on December 2025


Avatar for GAC Services

GAC Services

4.86(
268
)
Approved Pro

GAC Services

4.86(
268
)
Approved Pro
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
55 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 Beacon Home Services

Beacon Home Services

4.79(
921
)
Approved Pro

Beacon Home Services

4.79(
921
)
Approved Pro
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
23 years of experience

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.

"This was a few years ago, so I don't recall all of the experience, but in hindsight there are some plumbing choices made by the technician that are a bit questionable that I'm going to have to have corrected."

Thomas S on December 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.

"This was a few years ago, so I don't recall all of the experience, but in hindsight there are some plumbing choices made by the technician that are a bit questionable that I'm going to have to have corrected."

Thomas S on December 2025


Metro Communication & Cabling

4.86(
37
)
Approved Pro

Metro Communication & Cabling

4.86(
37
)
Approved Pro
Customers say: Quick response
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
15 years of experience

Metro Communication & Cabling has over 13 years of experience in networking for your business! We offer full service installs upgrades and repairs. Give us a call today!

"Get customer service and excellent work. highly recommendThe work was completed professionally and on time. The team was courteous, efficient, and respectful of our space. Communication throughout the process was clear, and any questions we had were answered promptly. We’re very satisfied with the results and would confidently recommend their services to others. Thank you!"

Adam M on June 2025

Metro Communication & Cabling has over 13 years of experience in networking for your business! We offer full service installs upgrades and repairs. Give us a call today!

"Get customer service and excellent work. highly recommendThe work was completed professionally and on time. The team was courteous, efficient, and respectful of our space. Communication throughout the process was clear, and any questions we had were answered promptly. We’re very satisfied with the results and would confidently recommend their services to others. Thank you!"

Adam M on June 2025


Avatar for Beacon Home Services, Inc.

Beacon Home Services, Inc.

4.65(
847
)
Approved Pro

Beacon Home Services, Inc.

4.65(
847
)
Approved Pro
Super Service Award
Customers say: True professional
23 years of experience
Free onsite estimate

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.

"Good response; job done quickly and competently. "

Lisa R 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.

"Good response; job done quickly and competently. "

Lisa R on December 2025


Avatar for W B Lightning Rods

W B Lightning Rods

4.93(
297
)
Approved Pro

W B Lightning Rods

4.93(
297
)
Approved Pro
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
24 years of experience

WB Lightning Rods is a third-generation lightning protection contractor. Family Owned and operated for over 60 years. installing U.L. Listed Lightning protection systems, All Over the East coast, Midwest south east and south west regions of the U.S. Installations on Residential Homes, Estate Properties, Agricultural and Equestrian Properties. Lightning Protection for trees is also available. No job to big or small References upon Request. Contact us today for a no cost or obligation estimate. We look forward to working with you on your Lightning Protection Project. Thank you. **WE ARE NOT ELECTRICIANS** **WE ONLY INSTALL LIGHTNING PROTECTION SYSTEMS **

"Great company, they were fast, friendly, & accommodating. I would definitely use them again."

Jennifer B on October 2024

WB Lightning Rods is a third-generation lightning protection contractor. Family Owned and operated for over 60 years. installing U.L. Listed Lightning protection systems, All Over the East coast, Midwest south east and south west regions of the U.S. Installations on Residential Homes, Estate Properties, Agricultural and Equestrian Properties. Lightning Protection for trees is also available. No job to big or small References upon Request. Contact us today for a no cost or obligation estimate. We look forward to working with you on your Lightning Protection Project. Thank you. **WE ARE NOT ELECTRICIANS** **WE ONLY INSTALL LIGHTNING PROTECTION SYSTEMS **

"Great company, they were fast, friendly, & accommodating. I would definitely use them again."

Jennifer B on October 2024


"GREAT!!!!!! Excellent service, very professional, on time and honest!!! I will be using their service again."

Raychon R on October 2025

10 Years Of Experience. Provides Exceptional & Guaranteed Residential Work. Put Clients Needs First Before Anything. www.jaelectricllc.net

"GREAT!!!!!! Excellent service, very professional, on time and honest!!! I will be using their service again."

Raychon R on October 2025


"We were hoping to get everything operating on one remote, but we donâ t live in a perfect world. The technician was able to show us new and wonderful things with our system though, and he was able to navigate the hideous tangle of wires pretty successfully through the whole process."

Charles G on August 2023

We offer solid experience in commercial and residential audio/video distribution. This includes dedicated theatre and/or media rooms; security cameras and lighting control. We've established a top-notch reputation in the greater Washington, D.C. area.

"We were hoping to get everything operating on one remote, but we donâ t live in a perfect world. The technician was able to show us new and wonderful things with our system though, and he was able to navigate the hideous tangle of wires pretty successfully through the whole process."

Charles G on August 2023


"Our existing generator died. James diagnosed the problem and gave us a few options to repair or replace it. We chose to replace it. James handled everything, from getting and installing the new generator to electrical and fuel (propane) connections. We have asked him to schedule us for the annual maintenance on the machine. We are pleased, though we haven't lost power since it was installed, LOL. "

Gail D on January 2025

Welcome to Rollins Repair! We specialize in residential generator installations, repairs and service work. We are an authorized Guardian Generator Dealer and Installer. Give us a call today.

"Our existing generator died. James diagnosed the problem and gave us a few options to repair or replace it. We chose to replace it. James handled everything, from getting and installing the new generator to electrical and fuel (propane) connections. We have asked him to schedule us for the annual maintenance on the machine. We are pleased, though we haven't lost power since it was installed, LOL. "

Gail D on January 2025

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Generator Install questions, answered by experts

Yes, whole-house generators run constantly for extended periods. Whole-house generators can run for longer periods of time than portable generators, but be careful. First, they may need regular applications of engine oil (as frequently as daily), depending on the engine design. Second, running constantly for several days will increase the wear and tear on the generator and shorten its lifespan.

Sizing a generator is a careful process that requires calculating the electrical load of your entire house. You have to take into account every device you want to use and their wattage requirements, plus the wattage needed to start them, and look for a generator that can safely run all that at around 80% capacity.

In more practical terms, a small home can run on a 10,000-watt generator (and if you only want to power a few key appliances, much less than that). A mid-sized home may need something between 15,000 and 22,000 watts. Larger homes require 25,000 watts or more. 

You can expect a diesel generator to last for up to 30,000 hours of use, which works out to 20 to 25 years with the proper maintenance, of course. That depends on how much you use it, so a diesel generator used for emergencies a couple of times a year will last a lot longer than a generator that takes over for a faulty electrical grid every month for a day or two. 

Natural gas and electricity rates vary significantly based on location, and pricing can change over time, too. It’s possible that in locations where natural gas is particularly inexpensive, it will cost less than grid-based electricity will. However, you should also factor in the generator’s initial costs and maintenance needs, as well as its noise level and if it can comfortably power all your home appliances.

Yes, in some locations, it is required by the National Electric Code (NEC) to have a transfer switch installed for electrical emergencies. In addition to following electrical code, generator transfer switches ensure your home is fully protected during a power outage. By switching the power from the main breaker to the generator breaker, you can seamlessly operate your HVAC, lights, appliances, devices, and more during an emergency. 

The Damascus, MD homeowners’ guide to generator installs

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