Top-rated generator install pros.

Get matched with top generator install pros in Upper Marlboro, MD

There are 11 highly-rated local generator install pros.

TRUSTED BY UPPER MARLBORO, MD HOMEOWNERS

  • Average homeowner rating star icon4.9
    Average homeowner rating
  • Verified reviews icon11
    Verified generator installs reviews

Find Generator install pros in Upper Marlboro

"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 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
658 local quotes requested

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 K 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 K on February 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
291 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


"Eric and his team did an amazing job. They were very helpful. Getting all the required permits in calvert county. Eric talked to the electric company to get evetlrything scheduled. When the job was done he contacted the office for inspection. All we had to do was sit back and wait."

Donald L on April 2025

As a locally owned and operated Electrical Contractor business we feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today!

"Eric and his team did an amazing job. They were very helpful. Getting all the required permits in calvert county. Eric talked to the electric company to get evetlrything scheduled. When the job was done he contacted the office for inspection. All we had to do was sit back and wait."

Donald L on April 2025


"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


Avatar for Absolute Electrical Contractors LLC

Absolute Electrical Contractors LLC

4.80(
148
)
Approved Pro

Absolute Electrical Contractors LLC

4.80(
148
)
Approved Pro
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
55 local quotes requested

Our electricians are always Prompt, Courteous, Respectful of your home. More than 20 years in Montgomery County. We cover the whole DC area. Accredited Better Business Bureau Member Absolutely no hidden fees licensed & insured in MD, DC, & VA. Let us help you go green & save yourself some green $s. Eco-friendly solutions, home remodeling/renovations, new home installations, upgrading of service, upgrade fuse box to breaker box, troubleshooting & repairs, home inspections. We design, install, & repair: outdoor/landscape lighting, security lighting & systems, communications systems/telephones & systems wiring, data (internet) wiring, cable and fios tv wiring, recessed & track lighting, ceiling fans, attic exhaust fans, light fixture & dimmers, plugs & switches, emergency generators, appliances. better business bureau certified member. Many people believe that their car is the largest single source of air pollution for which they are personally responsible. But in fact, the average home causes the emission of more than twice as much carbon dioxide--the principal greenhouse gas--as the average car. This is because most of the energy consumed in our homes is produced by burning fossil fuels like coal, oil, and natural gas. This pollution is actually a hidden cost for the energy We use, over and above the dizzying $110 billion Americans spend each year on their home energy bills that's nearly $1,300 per house. Much of this energy use is unnecessary because there are a variety of proven, widely available products on the market today (heating, cooling, appliances, windows, lighting, etc.) to drastically reduce your home's energy bills, and accompanying pollution. What's more, many of these products actually improve the comfort and livability of your home.

"Andre was extremely helpful and kind with the install - I was having issues with my power in my rooms, he helped me navigate the issue, replace the needed sockets, and also gave me extra help regarding recommendations for electrical safety. Could not recommend enough, thanks Andre!"

Eniola O on May 2025

Our electricians are always Prompt, Courteous, Respectful of your home. More than 20 years in Montgomery County. We cover the whole DC area. Accredited Better Business Bureau Member Absolutely no hidden fees licensed & insured in MD, DC, & VA. Let us help you go green & save yourself some green $s. Eco-friendly solutions, home remodeling/renovations, new home installations, upgrading of service, upgrade fuse box to breaker box, troubleshooting & repairs, home inspections. We design, install, & repair: outdoor/landscape lighting, security lighting & systems, communications systems/telephones & systems wiring, data (internet) wiring, cable and fios tv wiring, recessed & track lighting, ceiling fans, attic exhaust fans, light fixture & dimmers, plugs & switches, emergency generators, appliances. better business bureau certified member. Many people believe that their car is the largest single source of air pollution for which they are personally responsible. But in fact, the average home causes the emission of more than twice as much carbon dioxide--the principal greenhouse gas--as the average car. This is because most of the energy consumed in our homes is produced by burning fossil fuels like coal, oil, and natural gas. This pollution is actually a hidden cost for the energy We use, over and above the dizzying $110 billion Americans spend each year on their home energy bills that's nearly $1,300 per house. Much of this energy use is unnecessary because there are a variety of proven, widely available products on the market today (heating, cooling, appliances, windows, lighting, etc.) to drastically reduce your home's energy bills, and accompanying pollution. What's more, many of these products actually improve the comfort and livability of your home.

"Andre was extremely helpful and kind with the install - I was having issues with my power in my rooms, he helped me navigate the issue, replace the needed sockets, and also gave me extra help regarding recommendations for electrical safety. Could not recommend enough, thanks Andre!"

Eniola O on May 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
144 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


Avatar for CAB Certified Electric

CAB Certified Electric

5.00(
8
)
Approved Pro

CAB Certified Electric

5.00(
8
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
196 local quotes requested

CAB Certified Electric is a locally owned by a master electrician with over 20 years of experience. CAB Certified Electricians are licensed in Virginia, Maryland and Washington, D.C. We work with a variety of customers that include: residential customers, commercial customers, insurance companies, remodeling contractors and even the Washington Metropolitan Area Transit Authority (WMATA). CAB Certified Electric is certified with the Maryland Department of Transportation (MDOT), Minority Business Enterprise Program (MBE) and Disadvantaged Business Enterprise Program (DBE).

"Great people, on time and very reasonable. I've already referred them to clients. My new go-to electrician!"

Jim M on June 2025

CAB Certified Electric is a locally owned by a master electrician with over 20 years of experience. CAB Certified Electricians are licensed in Virginia, Maryland and Washington, D.C. We work with a variety of customers that include: residential customers, commercial customers, insurance companies, remodeling contractors and even the Washington Metropolitan Area Transit Authority (WMATA). CAB Certified Electric is certified with the Maryland Department of Transportation (MDOT), Minority Business Enterprise Program (MBE) and Disadvantaged Business Enterprise Program (DBE).

"Great people, on time and very reasonable. I've already referred them to clients. My new go-to electrician!"

Jim M on June 2025


Green's Electric

5.00(
12
)
Approved Pro

Green's Electric

5.00(
12
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
423 local quotes requested

Electrical Service & Repairs - We guarantee your satisfaction, and we won’t leave until the job is done right. Our team has quality experience in this industry, and we make sure our customers are happy before we leave. Call or click to schedule an estimate today!

"I have zero complaints, they were punctual, professional and very reasonably priced. Came when they said they would and finished when they said they would, i highly recommend."

Michelle M on October 2025

Electrical Service & Repairs - We guarantee your satisfaction, and we won’t leave until the job is done right. Our team has quality experience in this industry, and we make sure our customers are happy before we leave. Call or click to schedule an estimate today!

"I have zero complaints, they were punctual, professional and very reasonably priced. Came when they said they would and finished when they said they would, i highly recommend."

Michelle M on October 2025


Avatar for Vital Electric

Vital Electric

4.96(
28
)
Approved Pro

Vital Electric

4.96(
28
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
44 local quotes requested

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 put the interests of the job ahead of his own. He quickly diagnosed the problem and followed through with a solution that saved both time and money. We were impressed with both his substantive knowledge and his dedication to serving the client’s interest."

Ronald P on November 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 put the interests of the job ahead of his own. He quickly diagnosed the problem and followed through with a solution that saved both time and money. We were impressed with both his substantive knowledge and his dedication to serving the client’s interest."

Ronald P on November 2025

...
Showing 1-10 of 150
Generator Install questions, answered by experts

Costs depend on generator type, labor, and additional wiring or transfer switch requirements.

Yes. You can connect your home back-up battery to a generator with its designated charger. Be sure that the output of the generator matches the input requirements for the battery for best results.

When properly maintained, natural gas generators can last a long time, as much as 20 to 40 years. They have relatively few needs compared to generators with other fuel types. However, the generator’s lifespan ultimately depends on how often the generator is used and for how long it’s left running.

Whole-house generators can last 20 to 40 years with normal operation and proper maintenance. If you look up the specifications for your generator, you may be able to find a lifespan rated in hours of operation. Life expectancy will vary depending on how often and for how long you use the generator each year. Choosing a fuel with low impact like natural gas or diesel can help generators last as long as possible.

No, this is extremely dangerous, often illegal, and you should never attempt it. If you connect your generator to your home without a transfer switch, the generated power can backfeed, essentially flowing back into the utility lines. Backfeeding exposes a significant threat of fatalities or harm to you and utility personnel, in addition to jeopardizing the structural integrity of your home.

The Upper Marlboro, MD homeowners’ guide to generator installs

From average costs to expert advice, get all the answers you need to get your job done.