Top-rated generator install pros.

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There are 9 highly-rated local generator install pros.

Find Generator install pros in Brandywine

Beltway Electric Services llc

7320 Field Omary Place
4.67(
24
)
Approved Pro

Beltway Electric Services llc

7320 Field Omary Place
4.67(
24
)
Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
70 local quotes requested

We are a family owned business since 1983. We offer everything electrical for services in your home. We take customer satisfaction to the next level in making sure all our customers are happy and satisfied with their project needs. Our technicians take pride in doing a clean and affordable job to insure your not only happy with our services but want to use us again on any future projects you may want. Our estimates are free and our prices are extremely competitive.

"Great job helping sort out the open neutral I had. I was able to get the new wire, breaker, and outlets installed so the electronics are isolated on their own circuit. Thanks again."

Werter A on April 2025

We are a family owned business since 1983. We offer everything electrical for services in your home. We take customer satisfaction to the next level in making sure all our customers are happy and satisfied with their project needs. Our technicians take pride in doing a clean and affordable job to insure your not only happy with our services but want to use us again on any future projects you may want. Our estimates are free and our prices are extremely competitive.

"Great job helping sort out the open neutral I had. I was able to get the new wire, breaker, and outlets installed so the electronics are isolated on their own circuit. Thanks again."

Werter A on April 2025


Avatar for Chesapeake Electric

Chesapeake Electric

117 Gibralter Ave
4.78(
54
)
Approved Pro

Chesapeake Electric

117 Gibralter Ave
4.78(
54
)
Approved Pro
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
144 local quotes requested

We pride ourselves on getting your project done right the first time! Chesapeake Electric is a locally-owned and operated company in Annapolis, MD established by Master Electrician, Ryan Deshaies. With over 50 years of combined experience, our dedicated team focuses on providing superior customer service, craftsmanship, and professionalism beyond expectations. We are a full service licensed and insured electrical contractor and here to serve you 24/7 with expertise in residential and commercial electrical work. Whether you require an emergency electrician or have an in-depth electrical project, we work directly with you through design, implementation, and follow up services. Your peace of mind is very important to us. You will always know exactly what work is being done and why. Projects that are big and small, we take them all! We want to make your project dream a reality. Call Chesapeake Electric Electric today at 410-280-3388.

"Did not receive a call"

Ian S on August 2020

We pride ourselves on getting your project done right the first time! Chesapeake Electric is a locally-owned and operated company in Annapolis, MD established by Master Electrician, Ryan Deshaies. With over 50 years of combined experience, our dedicated team focuses on providing superior customer service, craftsmanship, and professionalism beyond expectations. We are a full service licensed and insured electrical contractor and here to serve you 24/7 with expertise in residential and commercial electrical work. Whether you require an emergency electrician or have an in-depth electrical project, we work directly with you through design, implementation, and follow up services. Your peace of mind is very important to us. You will always know exactly what work is being done and why. Projects that are big and small, we take them all! We want to make your project dream a reality. Call Chesapeake Electric Electric today at 410-280-3388.

"Did not receive a call"

Ian S on August 2020


Avatar for Vital Electric

Vital Electric

7102 Columbia Park Road
5.00(
23
)
Approved Pro

Vital Electric

7102 Columbia Park Road
5.00(
23
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
34 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!

"Excellent work! Prompt, quick and attention to detail!"

Mark B on June 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!

"Excellent work! Prompt, quick and attention to detail!"

Mark B on June 2025


Avatar for S & S Electric LLC

S & S Electric LLC

1111 Cornell Ln
4.80(
117
)
Approved Pro

S & S Electric LLC

1111 Cornell Ln
4.80(
117
)
Approved Pro
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
77 local quotes requested

2-3 Employees. No subs. Cost is flat rate and hourly. S&S Electric, offers a wide variety of services that are designed to accommodate all your specific electrical projects. We are dedicated to meeting your needs effectively, professionally and affordably. We offer a level of expertise you're not likely to find elsewhere. We are licensed and insured for your protection. You can count on S&S Electric to provide the absolute best electrical repairs and installation services. We will be more than happy to provide you with a phone estimate for your small projects and a writen estimate for your larger ones. You can rely on us for a quick responce 24 hours a day, 7 days a week and 365 days each year to complete your electrical projects. When you are ready to start your next electrical project S&S Electric will be here ready to leave you impressed, your home clean and a quality job to be proud of. We want to be the only electrical company you'll want to hire. So no mater how big or small your electrical project is we have an electrician that is here to help.

"Great job!"

Brian B on March 2025

2-3 Employees. No subs. Cost is flat rate and hourly. S&S Electric, offers a wide variety of services that are designed to accommodate all your specific electrical projects. We are dedicated to meeting your needs effectively, professionally and affordably. We offer a level of expertise you're not likely to find elsewhere. We are licensed and insured for your protection. You can count on S&S Electric to provide the absolute best electrical repairs and installation services. We will be more than happy to provide you with a phone estimate for your small projects and a writen estimate for your larger ones. You can rely on us for a quick responce 24 hours a day, 7 days a week and 365 days each year to complete your electrical projects. When you are ready to start your next electrical project S&S Electric will be here ready to leave you impressed, your home clean and a quality job to be proud of. We want to be the only electrical company you'll want to hire. So no mater how big or small your electrical project is we have an electrician that is here to help.

"Great job!"

Brian B on March 2025


Avatar for Kolb Electric Inc

Kolb Electric Inc

8530 Cinder Bed Rd
4.22(
216
)
Approved Pro

Kolb Electric Inc

8530 Cinder Bed Rd
4.22(
216
)
Approved Pro
Customers say: Super punctual
205 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


"I needed several plugs fixed/moved, a baseboard heater re-connected and a stairwell light hung properly and they took care of all of it fast and for a great price. I would definitely hire them again!"

Cheryl R on September 2025

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

"I needed several plugs fixed/moved, a baseboard heater re-connected and a stairwell light hung properly and they took care of all of it fast and for a great price. I would definitely hire them again!"

Cheryl R on September 2025


Avatar for Serve You Group

Serve You Group

10432 Merrigan Rd
New on AngiNew on Angi
Approved Pro

Serve You Group

10432 Merrigan Rd
New on AngiNew on Angi
Approved Pro
1245 local quotes requested
4 years of experience

We have the experience and dedication to get the job done right! Specializing in remodeling services; 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! Call or click for your FREE estimate today!

We have the experience and dedication to get the job done right! Specializing in remodeling services; 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! Call or click for your FREE estimate today!


Calvert Generator

3520 Lyons Creek Rd
New on AngiNew on Angi
Approved Pro

Calvert Generator

3520 Lyons Creek Rd
New on AngiNew on Angi
Approved Pro
4 years of experience
Free onsite estimate

Calvert Generator is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

Calvert Generator is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.


Mohamed Electric

5720 Fieldcrest Drive
New on AngiNew on Angi
Approved Pro

Mohamed Electric

5720 Fieldcrest Drive
New on AngiNew on Angi
Approved Pro
4 years of experience
Free onsite estimate

With over 11 years experience in the electrical industry, Mohamed Electric is your industry expert in Prince George County and the surrounding areas. We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee will assure you we will not leave your property until you are completely satisfied with our work. As a locally owned and operated business you can trust that we will treat your home as we would treat our own. Give us a call today we look forward to working with you!

With over 11 years experience in the electrical industry, Mohamed Electric is your industry expert in Prince George County and the surrounding areas. We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee will assure you we will not leave your property until you are completely satisfied with our work. As a locally owned and operated business you can trust that we will treat your home as we would treat our own. Give us a call today we look forward to working with you!


Avatar for C.A.B Certified Electric, LLC

C.A.B Certified Electric, LLC

22110 Garretts Chance Street
4.83(
9
)
Approved Pro

C.A.B Certified Electric, LLC

22110 Garretts Chance Street
4.83(
9
)
Approved Pro
Customers say: Quick response
5 years of experience

C.A.B CERTIFIED ELECTRIC LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.

"We had a burnt outlet and had electrical concerns. Calvin,the owner of CAB, took my call the same day and fixed and addressed all electrical concerns on the spot! Great service 5 stars!"

Justin W on March 2025

C.A.B CERTIFIED ELECTRIC LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.

"We had a burnt outlet and had electrical concerns. Calvin,the owner of CAB, took my call the same day and fixed and addressed all electrical concerns on the spot! Great service 5 stars!"

Justin W on March 2025

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Generator Install questions, answered by experts

When choosing the right size generator for your needs, consider a few items to help calculate the wattage you’ll need. Start by determining which household items and appliances you want to power, and then add the wattages together. Check out the wattage of these essential appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 watts

Running home appliances like these requires a partial or whole-house generator. A portable generator may be enough to power your home if you only plan to keep a refrigerator and freezer running. 

A 1,500 square foot home will likely need a 15kW to 20kW generator. When deciding on whole-house generator size, add up the total wattage of the devices that you’d like to continue running during a power outage. That way, you can ensure you purchase a generator that can power your necessary appliances or medical equipment during an electrical emergency.

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. 

While diesel is relatively stable, it won’t last nearly as long as propane and you may have to replace it if it sits unused for too long. Diesel can sometimes struggle to work efficiently or start engines during especially cold weather, so it’s not the best choice for every climate. Compared to fuels like propane and natural gas, diesel generators tend to be noisier and create more exhaust, which isn’t always ideal for home use.

No, you shouldn’t use an extension cord to plug a generator directly into your home without using a transfer switch. That’s because systems like pumps and HVAC fans need a steady power source that might not be available directly from your generator alone. If you bypass the circuit breaker box, you risk damaging your electrical system, creating a risk of electrical fire or electrical shock to you or any workers repairing lines on your local electrical grid.

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The Brandywine, MD homeowners’ guide to generator installs

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