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  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon64
    Verified generator installs reviews

Find Generator install pros in Rockville

Avatar for TriState Home Services

TriState Home Services

4.64(
195
)
Approved Pro

TriState Home Services

4.64(
195
)
Approved Pro
Customers say: Super punctual
236 local quotes requested
76 years of experience

If you are looking for a HVAC Contractor, a Plumbing Contractor, or an Electrical Contractor to provide you with great service, you've come to the right place. We provide heating services, air conditioning services, plumbing services, and electrical services to our customers in Frederick and the surrounding Counties, the Pan Handle of West Virginia, and Northern Virginia, from our offices located in Frederick MD. With 3 generations of experience in providing heating, air conditioning, plumbing, and electrical services, we are dedicated to providing the best possible products and services for you, and your family.

"Replaced air conditioning unit. Super nice brought us portable a/c units until installation was completed. Very professional and easy to deal with."

Joseph C on January 2020

If you are looking for a HVAC Contractor, a Plumbing Contractor, or an Electrical Contractor to provide you with great service, you've come to the right place. We provide heating services, air conditioning services, plumbing services, and electrical services to our customers in Frederick and the surrounding Counties, the Pan Handle of West Virginia, and Northern Virginia, from our offices located in Frederick MD. With 3 generations of experience in providing heating, air conditioning, plumbing, and electrical services, we are dedicated to providing the best possible products and services for you, and your family.

"Replaced air conditioning unit. Super nice brought us portable a/c units until installation was completed. Very professional and easy to deal with."

Joseph C on January 2020


Avatar for Beacon Home Services

Beacon Home Services

4.70(
1,015
)
Approved Pro

Beacon Home Services

4.70(
1,015
)
Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
902 local quotes requested

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.

"The contractor sent to my house was NOT a licensed electrician. I was told a free quote was 39.99, that turned to 59.99 when I got the estimate and it was waaaaaay over priced and then wanted me to pay a fee to get a warranty for their work! I would have expected a warranty on his work should have been given to me! I needed the job done right away, he was pleasant and courteous but never again with this company."

Beverly V on October 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.

"The contractor sent to my house was NOT a licensed electrician. I was told a free quote was 39.99, that turned to 59.99 when I got the estimate and it was waaaaaay over priced and then wanted me to pay a fee to get a warranty for their work! I would have expected a warranty on his work should have been given to me! I needed the job done right away, he was pleasant and courteous but never again with this company."

Beverly V on October 2025


Emerson

5.00(
9
)
Approved Pro

Emerson

5.00(
9
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
116 local quotes requested

Our mission is to be an electrical contractor that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. We won't leave until the job is done right! Call or click to schedule an estimate today!

"Dependable, high quality work."

Howard M on April 2025

Our mission is to be an electrical contractor that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. We won't leave until the job is done right! Call or click to schedule an estimate today!

"Dependable, high quality work."

Howard M on April 2025


JOHN MAX ELECTRIC

5.00(
21
)
Approved Pro

JOHN MAX ELECTRIC

5.00(
21
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
149 local quotes requested

We specialize in electrical services, repairs, installs, lighting, panel upgrades, generator installations, solar, power, ceiling fans, and 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!

"Very prompt in servicing my issues. Took time to explain and show me what they were doing and even what I needed to do."

Tancine C on July 2025

We specialize in electrical services, repairs, installs, lighting, panel upgrades, generator installations, solar, power, ceiling fans, and 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!

"Very prompt in servicing my issues. Took time to explain and show me what they were doing and even what I needed to do."

Tancine C on July 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
748 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


"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


Avatar for Hands on Electric

Hands on Electric

5.00(
11
)
Approved Pro

Hands on Electric

5.00(
11
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
68 local quotes requested

Experienced, quality and affordable Electricians servicing the Washington, DC. Metro Area. We offer same day service, 24 hour emergency service, and free estimates. No job is too small, we are troubleshooting experts, our services include but not limited to, generators, panel upgrades, ceiling fan installation, outlet replacement, track lighting, security lighting, recess lighting, appliance wiring, exterior lighting, pool & hot tub wiring, exhaust fans and much more.

"Kevin Williams was sent to repair problems created by another electrician hired by Kitchen Saver during an expansive kitchen re-face and cabinet installation. Among other things, he re-located an unsightly transformer that had been previously secured to the inside of the first shelf of a main kitchen cabinet to a lower cabinet out of sight. Voila! Then, he re-routed unsightly wiring previously clamped to the far corner of a glass display cabinet so that it was out of sight. These were difficult puzzles to solve, as the new cabinets had already been installed and there was no longer easy access. Kevin was friendly, professional, and experienced! Great job!"

NINA A on August 2022

Experienced, quality and affordable Electricians servicing the Washington, DC. Metro Area. We offer same day service, 24 hour emergency service, and free estimates. No job is too small, we are troubleshooting experts, our services include but not limited to, generators, panel upgrades, ceiling fan installation, outlet replacement, track lighting, security lighting, recess lighting, appliance wiring, exterior lighting, pool & hot tub wiring, exhaust fans and much more.

"Kevin Williams was sent to repair problems created by another electrician hired by Kitchen Saver during an expansive kitchen re-face and cabinet installation. Among other things, he re-located an unsightly transformer that had been previously secured to the inside of the first shelf of a main kitchen cabinet to a lower cabinet out of sight. Voila! Then, he re-routed unsightly wiring previously clamped to the far corner of a glass display cabinet so that it was out of sight. These were difficult puzzles to solve, as the new cabinets had already been installed and there was no longer easy access. Kevin was friendly, professional, and experienced! Great job!"

NINA A on August 2022


Avatar for Vital Electric

Vital Electric

5.00(
26
)
Approved Pro

Vital Electric

5.00(
26
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
47 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 was on time, courteous and professional. He was knowledgeable regarding his craft and reasonable with price. I would recommend his services to my family and friends."

Natasha B on October 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 was on time, courteous and professional. He was knowledgeable regarding his craft and reasonable with price. I would recommend his services to my family and friends."

Natasha B on October 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 HuntCo Enterprises, LLC

HuntCo Enterprises, LLC

No reviews yet

HuntCo Enterprises, LLC

No reviews yet
Free onsite estimate

With almost a decade of experience, HuntCo Enterprises is more than capable of solving your commercial and residential electrical needs. We are a minority, female owned business based in Montgomery County Maryland

With almost a decade of experience, HuntCo Enterprises is more than capable of solving your commercial and residential electrical needs. We are a minority, female owned business based in Montgomery County Maryland

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Generator Install questions, answered by experts

These advanced generators use a key fob or a smartphone app to remotely start, which is ideal for getting power back on immediately without venturing outside. This feature is more common on whole home generators, but you may be able to find it on large portable generators, too.

The typical cost of a home generator is around $5,000, but prices range from $400 up to $13,000, depending on a few factors. The most significant cost factor is the generator size, as larger generators that can support more square footage usually cost more. You can install an emergency backup generator for between $500 and $2,000 or a partial-home generator for between $2,000 and $6,500. Whole-home generators usually total between $5,000 and $13,000, with some models climbing as high as $18,000.

It might seem counterintuitive, but installing a generator transfer switch will save you money in the long run. While you’ll have to pay between $400 and $2,500 to have the transfer switch installed, you’ll recoup that amount later on when you don’t have to pay for expensive repairs to your appliances, devices, and electrical system that may have burned out, overloaded, or stopped working due to a sudden loss of power or an incorrect hook up of a generator to your home

Costs range from $500 to $2,500, depending on generator type and installation complexity.

As a safety measure, you should always turn off the main breaker while operating your generator’s backup breaker. In addition, you should also switch off all appliance breakers so you don't have a power surge when the main breaker turns back on. And finally, turning off the main breaker prevents back-feeding, which endangers utility workers with the risk of electrocution. Back-feeding could also destroy the electrical circuits of your neighbors if they use the same power network.

The Rockville, MD homeowners’ guide to generator installs

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