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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 En Motion Security Solutions

En Motion Security Solutions

13109 Long Green Pike
4.75(
4
)
Approved Pro

En Motion Security Solutions

13109 Long Green Pike
4.75(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
8 years of experience

En Motion Security Solutions is committed to excellence 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.

"Friendly, efficient installation. Got done early, answered all our questions. Would use them again."

Dennis B on April 2020

En Motion Security Solutions is committed to excellence 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.

"Friendly, efficient installation. Got done early, answered all our questions. Would use them again."

Dennis B on April 2020


Avatar for Wilk & Son Electrical

Wilk & Son Electrical

4175 Fox Den Lane
5.00(
10
)
Approved Pro

Wilk & Son Electrical

4175 Fox Den Lane
5.00(
10
)
Approved Pro
Customers say: Quick response
2 years of experience
Free onsite estimate

Wilk & Son Electrical 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 customer's interests, and make their concerns the basis of our business.

"I had an excellent experience working with Chris! He installed and hung various lighting fixtures throughout my house with precision and care. He made sure everything was aligned and secure. He was professional, punctual, and took the time to explain the process clearly. The finished results looks amazing and completely transformed the space in my new dc home in Chesapeake beach! I highly recommend his company who is looking for a skilled and reliable electrician! "

Jaime D on September 2025

Wilk & Son Electrical 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 customer's interests, and make their concerns the basis of our business.

"I had an excellent experience working with Chris! He installed and hung various lighting fixtures throughout my house with precision and care. He made sure everything was aligned and secure. He was professional, punctual, and took the time to explain the process clearly. The finished results looks amazing and completely transformed the space in my new dc home in Chesapeake beach! I highly recommend his company who is looking for a skilled and reliable electrician! "

Jaime D on September 2025


Avatar for W B Lightning Rods

W B Lightning Rods

560 Peoples Plaza Unit 234
4.93(
297
)
Approved Pro

W B Lightning Rods

560 Peoples Plaza Unit 234
4.93(
297
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
252 local quotes requested

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


Avatar for Technic Electric LLC

Technic Electric LLC

5.00(
2
)

Technic Electric LLC

5.00(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Technic Electric is capable of all levels of electrical work ranging from residential service calls through commercial contracting, lighting retrofits, service upgrades limited access lighting and so much more. With over 15 years experience we pride ourselves on a high quality service for all jobs big and small.

"Mathew was super responsive and did a great job. He showed up on time, finished quickly and cleaned up everything when done. I would definitely use him again and recommend him for some my future electric needs."

Dan H on May 2024

Technic Electric is capable of all levels of electrical work ranging from residential service calls through commercial contracting, lighting retrofits, service upgrades limited access lighting and so much more. With over 15 years experience we pride ourselves on a high quality service for all jobs big and small.

"Mathew was super responsive and did a great job. He showed up on time, finished quickly and cleaned up everything when done. I would definitely use him again and recommend him for some my future electric needs."

Dan H on May 2024


Avatar for Reliable  Electric LLC

Reliable Electric LLC

938 Swan Creek Rd Suite 745
No reviews yet

Reliable Electric LLC

938 Swan Creek Rd Suite 745
No reviews yet
9 years of experience

Local small electrical business skilled in commercial and residential electrical work. We differ from other contractors from pricing, professionalism, quality of work and commitment to do the work. Been doing electrical work for 14+ years been in business for 7 year. Contact us today to help with your electrical needs.

Local small electrical business skilled in commercial and residential electrical work. We differ from other contractors from pricing, professionalism, quality of work and commitment to do the work. Been doing electrical work for 14+ years been in business for 7 year. Contact us today to help with your electrical needs.


Avatar for Lamb Group Electric

Lamb Group Electric

30020 Arbor Hills Way
No reviews yet

Lamb Group Electric

30020 Arbor Hills Way
No reviews yet
26 years of experience

We are a full-service electrical contractor that employs high quality electricians ready to repair or install electrical devices throughout your home or business. Electrical panels, lighting, exterior lighting, pool & spa power, recessed lighting, EV charging stations, generator install & repair, and so much more. Get the job done quickly, effectively and to code. Hire an electrician today. We proudly serve our Southern Maryland community since 1999. "We make it happen."

We are a full-service electrical contractor that employs high quality electricians ready to repair or install electrical devices throughout your home or business. Electrical panels, lighting, exterior lighting, pool & spa power, recessed lighting, EV charging stations, generator install & repair, and so much more. Get the job done quickly, effectively and to code. Hire an electrician today. We proudly serve our Southern Maryland community since 1999. "We make it happen."


Avatar for Vzak Global LLC

Vzak Global LLC

6913 Andersons Way
No reviews yet

Vzak Global LLC

6913 Andersons Way
No reviews yet
14 years of experience

I am a professional Electrical Engineer with over 8 years of experience and I have a bachelor's degree in Electrical Engineering backed up with another degree in Electronics an computer engineering. Am very creative and more known as to overcome obstacles either big or small. We also do a complete smart home installation

I am a professional Electrical Engineer with over 8 years of experience and I have a bachelor's degree in Electrical Engineering backed up with another degree in Electronics an computer engineering. Am very creative and more known as to overcome obstacles either big or small. We also do a complete smart home installation


JRG SERVICES INC

10576 Metropolitan Ave
No reviews yet

JRG SERVICES INC

10576 Metropolitan Ave
No reviews yet

We are a privately Family owned, providing a comprehensive range of domestic and commercial electrical services in Maryland, Virginia and DC. Our business is underpinned by a commitment to customer services and provide quality workmanship at fair and competitive price. We are fully licensed and insured. For over 6 years, JRG Services Inc. have been providing our customers with unmatched electrical installation and repair services. We have a competent team of electricians with expertise to handle the job and complete it in a seamless manner. They are highly trained and always available to provide 24-hours emergency electrical services for all your home and business needs.

We are a privately Family owned, providing a comprehensive range of domestic and commercial electrical services in Maryland, Virginia and DC. Our business is underpinned by a commitment to customer services and provide quality workmanship at fair and competitive price. We are fully licensed and insured. For over 6 years, JRG Services Inc. have been providing our customers with unmatched electrical installation and repair services. We have a competent team of electricians with expertise to handle the job and complete it in a seamless manner. They are highly trained and always available to provide 24-hours emergency electrical services for all your home and business needs.

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Generator Install questions, answered by experts

You can determine what size generator you need for a transfer switch by matching the switch to the largest outlet on your generator. Larger generators can power up to 10 circuits, while most 5,000-watt generators can provide power to six circuits. So, if your generator’s largest outlet is 30 amps, you’ll need a 30-amp transfer switch.

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

To power a central air system during a power outage, the whole-house generator will need to be at least 5,000 watts, and this number will significantly increase for larger units. Check the specific wattage requirements of your AC unit to choose the right generator size. Consider consulting a generator installer to ensure your whole-house generator meets your electrical load needs.

You can determine what size generator you need by listing the various appliances it will power during an outage. Write down the start-up watt usage, and then add them all together. 

A 7,500-watt generator will run your refrigerator, freezer, well pump, and lighting circuits without a problem. However, you’ll need an extra 3,000 to 4,500 watts to run your water heater and another 5,000 to 25,000 watts to run your electric furnace. In these instances, a whole-home generator is your best bet for running your critical equipment.

The amount of time a standby generator can run continuously is around 3,000 hours on average. However, standby generators can generally run indefinitely as long as they have a continuous fuel supply. Generators hooked up to a home’s natural gas supply are the best option for extended usage, as these won’t rely on a finite fuel supply based on how much you have in storage. Generators running on liquid propane or diesel won’t last as long, as these require fuel storage and regular refueling to stay running.

The Huntingtown, MD homeowners’ guide to generator installs

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

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