Top-rated generator install pros.

Get matched with top generator install pros in Harwood, MD

There are 12 highly-rated local generator install pros.

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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 Wilcox Electric LLC

Wilcox Electric LLC

5602 Tuxedo Rd
4.77(
993
)
Approved Pro

Wilcox Electric LLC

5602 Tuxedo Rd
4.77(
993
)
Approved Pro
Super Service Award
Customers say: Quality work
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
96 local quotes requested

We at Wilcox Electric are here to serve you. Our team will insure that you receive complete electrical services in a timely, professional manner. Since our founding in 1989, our successful stream of work has been driven largely by customer recommendations. Our company has evolved from a home-based business to an electrical contracting business with 22 employees. As a reflection of the times, we are installing increasing numbers of EV car charging stations in both single family houses and multi unit dwellings.

"Wilcox Electric did a great job for us installing an outdoor GFCI outlet and running a protected cord back to our electrical panel. Chris Doyle arranged for the service and inspection, and David Settimi did the actual installation. David had good ideas about how to place the outlet and wiring. I recommend them highly for electrical services. Outstanding service."

DJames B on December 2024

We at Wilcox Electric are here to serve you. Our team will insure that you receive complete electrical services in a timely, professional manner. Since our founding in 1989, our successful stream of work has been driven largely by customer recommendations. Our company has evolved from a home-based business to an electrical contracting business with 22 employees. As a reflection of the times, we are installing increasing numbers of EV car charging stations in both single family houses and multi unit dwellings.

"Wilcox Electric did a great job for us installing an outdoor GFCI outlet and running a protected cord back to our electrical panel. Chris Doyle arranged for the service and inspection, and David Settimi did the actual installation. David had good ideas about how to place the outlet and wiring. I recommend them highly for electrical services. Outstanding service."

DJames B on December 2024


Avatar for GAC Services

GAC Services

227 E Deer Park Dr
4.80(
279
)
Approved Pro

GAC Services

227 E Deer Park Dr
4.80(
279
)
Approved Pro
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
645 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 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 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


Avatar for Wireworx Electric Inc

Wireworx Electric Inc

105 Patricia Ave
4.93(
142
)
Approved Pro

Wireworx Electric Inc

105 Patricia Ave
4.93(
142
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
101 local quotes requested

Wireworx Electric Inc. We specialize in all aspects of the electrical trade. Residential & Commercial. We take pride in everything that we do, and are certain that you'll be 100% satisfied. All work initiated by owner/ master electrician. No salesman. Excellent references, hundreds of satisfied customers. Please call today for your FREE ESTIMATE! 10% discount for senior citizens & retired military. Licensed & Insured.

"very well Tech was on time sharp did great work"

Derek S on September 2025

Wireworx Electric Inc. We specialize in all aspects of the electrical trade. Residential & Commercial. We take pride in everything that we do, and are certain that you'll be 100% satisfied. All work initiated by owner/ master electrician. No salesman. Excellent references, hundreds of satisfied customers. Please call today for your FREE ESTIMATE! 10% discount for senior citizens & retired military. Licensed & Insured.

"very well Tech was on time sharp did great work"

Derek S on September 2025


"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 All About Sound & Video

All About Sound & Video

1595 Kimblewick Rd
4.93(
15
)
Approved Pro

All About Sound & Video

1595 Kimblewick Rd
4.93(
15
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
99 local quotes requested

Upgrade your home with home entertainment and security system installations from our company. We pride ourselves on the quality work we provide, while delivering great customer service! Call -or- click to schedule a free estimate today!

"Awesome extremely kind and helpful"

Sidney G on July 2025

Upgrade your home with home entertainment and security system installations from our company. We pride ourselves on the quality work we provide, while delivering great customer service! Call -or- click to schedule a free estimate today!

"Awesome extremely kind and helpful"

Sidney G on July 2025


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!

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Generator Install questions, answered by experts

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. 

Most homeowners won't be able to claim a home generator as a tax write-off. However, a whole-house generator may be tax-deductible in certain situations depending on its purpose. For instance, if it's needed to power essential medical equipment, it may qualify as a medical expense deduction. Also, in some cases, businesses can deduct a generator as a business expense if it supports operations. Always consult a tax professional to determine eligibility based on your specific circumstances and the applicable IRS regulations.

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 portable generator can supply power to selected appliances and circuits in a home, but it's generally not designed to handle the entire household's electrical needs simultaneously. Portable generators have limited wattage capacity, so they are only designed to power essential devices and electronics temporarily until local power is restored. If your power needs outweigh the capabilities of a portable generator, consider installing a whole-home generator instead.

An undersized whole-house generator has the potential to overheat and shut down when you try to run a central AC system. This scenario can not only damage the whole-house generator, but can also trip your home’s breakers or cause electrical damage. To avoid this situation, hire a local generator installer to correctly size your whole-house generator.

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The Harwood, MD homeowners’ guide to generator installs

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