Top-rated generator installers.

Get matched with top generator installers in Woodstock, MD

There are 21 highly-rated local generator installers.

Generator installers in Woodstock

Avatar for Provident Electric
Provident Electric
4253 Old National Pike
4.91(
77
)
Approved Pro
Provident Electric
4253 Old National Pike
4.91(
77
)
Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
43 local quotes requested

Family owned and operated Electrical contracting company, servicing residential and commercial clients. Specializing in back-up generators, full rehabs, remodels and additions. We also have bucket truck service available. We are Licensed and insured in most metropolitan cities and counties in Maryland, DC, Va. Minimum service charge applies per service call.

"Larry and his crew upgraded our under cabinet lighting with new LED lighting, and specialized outlet. Not only was our home and its contents treated as if they lived here, the job was done professionally. So much so, that the only issue we had was when the switch/outlet face plate screws came loose. I didn’t even bother calling Larry, I tightened them myself. The lighting is on, literally 24 hours per day since the install, with zero issues. Love these guys."

Chris F on December 2024

Family owned and operated Electrical contracting company, servicing residential and commercial clients. Specializing in back-up generators, full rehabs, remodels and additions. We also have bucket truck service available. We are Licensed and insured in most metropolitan cities and counties in Maryland, DC, Va. Minimum service charge applies per service call.

"Larry and his crew upgraded our under cabinet lighting with new LED lighting, and specialized outlet. Not only was our home and its contents treated as if they lived here, the job was done professionally. So much so, that the only issue we had was when the switch/outlet face plate screws came loose. I didn’t even bother calling Larry, I tightened them myself. The lighting is on, literally 24 hours per day since the install, with zero issues. Love these guys."

Chris F on December 2024


Avatar for Haas and Sons Electric Inc
Haas and Sons Electric Inc
403 Headquarters Drive
4.80(
124
)
Approved Pro
Haas and Sons Electric Inc
403 Headquarters Drive
4.80(
124
)
Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
295 local quotes requested

We specialize in home repairs and projects, providing you with solutions from basic to long-lasting so that we can ensure that we not only fit the budget but provide safety and comfort for your family. Haas & Sons is a small, family-operated business based in Millersville, Maryland, serving Anne Arundel, Howard, and surrounding counties. Our certified Electricians undergo constant training to provide you with quality work, excellent warranties, and fantastic service. What to expect with Haas & Sons- A company you can trust, Marked Vehicles, Uniformed and trained Techs, Constant communication, and Upfront pricing, all with a friendly smile.

"It was great. Five stars. They were timely professionals. And they did a wonderful job. I would hire them again."

Kylee P on May 2025

We specialize in home repairs and projects, providing you with solutions from basic to long-lasting so that we can ensure that we not only fit the budget but provide safety and comfort for your family. Haas & Sons is a small, family-operated business based in Millersville, Maryland, serving Anne Arundel, Howard, and surrounding counties. Our certified Electricians undergo constant training to provide you with quality work, excellent warranties, and fantastic service. What to expect with Haas & Sons- A company you can trust, Marked Vehicles, Uniformed and trained Techs, Constant communication, and Upfront pricing, all with a friendly smile.

"It was great. Five stars. They were timely professionals. And they did a wonderful job. I would hire them again."

Kylee P on May 2025


Avatar for All In Electric
All In Electric
615 Hilltop Rd
4.96(
28
)
Approved Pro
All In Electric
615 Hilltop Rd
4.96(
28
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
179 local quotes requested

Experience the difference with All In Electric, Inc. – where professionalism and reliability converge to power your success. Established in 2011, All In Electric, Inc. has been the trusted choice for quality electrical services in Maryland and beyond. With 38 years of combined experience, our team of skilled electricians delivers unparalleled expertise, ensuring your projects, whether new construction, home remodeling, or light commercial, are handled with the utmost precision and care. From planning and design to construction and maintenance, we handle it all, tailoring our services to your unique needs. Your satisfaction is our top priority, and we take pride in our exceptional customer service, available 24/7 for your residential and commercial emergencies.

"I am so pleased with this company. Amber was just so wonderful with answering all of my questions and addressing my concerns. The two gentlemen that came to do the work were professional, friendly, fast and efficient! I had five existing light fixtures replaced with retro LED recessed lights, and three smoke detectors replaced as well. They are so nice! So glad I got the work done with them. I would use them again if I need any electrical work done in the future. Their price was so much more reasonable than other quotes that I received. I would highly recommend them."

Teresa R on April 2025

Experience the difference with All In Electric, Inc. – where professionalism and reliability converge to power your success. Established in 2011, All In Electric, Inc. has been the trusted choice for quality electrical services in Maryland and beyond. With 38 years of combined experience, our team of skilled electricians delivers unparalleled expertise, ensuring your projects, whether new construction, home remodeling, or light commercial, are handled with the utmost precision and care. From planning and design to construction and maintenance, we handle it all, tailoring our services to your unique needs. Your satisfaction is our top priority, and we take pride in our exceptional customer service, available 24/7 for your residential and commercial emergencies.

"I am so pleased with this company. Amber was just so wonderful with answering all of my questions and addressing my concerns. The two gentlemen that came to do the work were professional, friendly, fast and efficient! I had five existing light fixtures replaced with retro LED recessed lights, and three smoke detectors replaced as well. They are so nice! So glad I got the work done with them. I would use them again if I need any electrical work done in the future. Their price was so much more reasonable than other quotes that I received. I would highly recommend them."

Teresa R 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
140 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 Benfield Electric Co
Benfield Electric Co
400 Hickory Dr
4.60(
10
)
Approved Pro
Benfield Electric Co
400 Hickory Dr
4.60(
10
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
42 local quotes requested

At Benfield Electric we know that everyone needs a friend who's an electrician. That's why, for over 50 years Benfield Electric has been the go-to choice for commercial builders, home builders, property managers, and homeowners. Founded in 1968, Benfield Electric employs a staff of more than 200 employees who work on projects throughout Maryland, southern Delaware, and southeast Pennsylvania. From the smallest home improvement or repair project to the largest multi-family or mixed-use project, Benfield Electric gets the job done right - the first time and on time. Call us today at 410-879-1485.

"Excellent, called ahead and arrived on time, reviewed requirements and explained necessary repairs, friendly and professional at all time, completed work in a timely manner, explained final repairs, and payment process. Generally cared about protecting our flooring as they were moving throughout the house and maintained COVID-19 masking requirements. Will hire them again and recommend them to friends and family"

David R on March 2021

At Benfield Electric we know that everyone needs a friend who's an electrician. That's why, for over 50 years Benfield Electric has been the go-to choice for commercial builders, home builders, property managers, and homeowners. Founded in 1968, Benfield Electric employs a staff of more than 200 employees who work on projects throughout Maryland, southern Delaware, and southeast Pennsylvania. From the smallest home improvement or repair project to the largest multi-family or mixed-use project, Benfield Electric gets the job done right - the first time and on time. Call us today at 410-879-1485.

"Excellent, called ahead and arrived on time, reviewed requirements and explained necessary repairs, friendly and professional at all time, completed work in a timely manner, explained final repairs, and payment process. Generally cared about protecting our flooring as they were moving throughout the house and maintained COVID-19 masking requirements. Will hire them again and recommend them to friends and family"

David R on March 2021


Avatar for Tim Kyle Electric Heating & Cooling
Tim Kyle Electric Heating & Cooling
151 W Main St
4.89(
353
)
Approved Pro
Tim Kyle Electric Heating & Cooling
151 W Main St
4.89(
353
)
Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
171 local quotes requested

At Tim Kyle Electric, Heating & Cooling, we believe that honesty, respect, and integrity are important. That’s why we have up-front pricing. You approve the price before we start your job. We also respect your home. All of our employees have to pass drug tests and background checks before they begin employment with us. All of our electricians are professionally trained and uniformed service technicians.

"Josh did a great job assessing our older carrier heat pump. he was honest and laid out the expenses of replacing the old heat pump fan and the other parts needed."

John F on March 2025

At Tim Kyle Electric, Heating & Cooling, we believe that honesty, respect, and integrity are important. That’s why we have up-front pricing. You approve the price before we start your job. We also respect your home. All of our employees have to pass drug tests and background checks before they begin employment with us. All of our electricians are professionally trained and uniformed service technicians.

"Josh did a great job assessing our older carrier heat pump. he was honest and laid out the expenses of replacing the old heat pump fan and the other parts needed."

John F on March 2025


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
829 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 Calvary Electric LLC
Calvary Electric LLC
2330 Swiftwater Dr
5.00(
13
)
Approved Pro
Calvary Electric LLC
2330 Swiftwater Dr
5.00(
13
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
52 local quotes requested

Calvary Electric LLC is a family owned, locally operated business specializing in commercial and residential electrical service and new construction. We serve our clients well with strong values in integrity, good character and hard work. If you desire quality workmanship and a job done right the first time, then Calvary is the contractor for you.

"Great crew. Responded quickly and professionally. Was able to circumvent some issues with my initial wants and come up with a better layout for the project. Just what was needed and complete in record time. Great pricing as well for the detailed work performed."

David L on October 2024

Calvary Electric LLC is a family owned, locally operated business specializing in commercial and residential electrical service and new construction. We serve our clients well with strong values in integrity, good character and hard work. If you desire quality workmanship and a job done right the first time, then Calvary is the contractor for you.

"Great crew. Responded quickly and professionally. Was able to circumvent some issues with my initial wants and come up with a better layout for the project. Just what was needed and complete in record time. Great pricing as well for the detailed work performed."

David L on October 2024


Green's Electric
13671 Baltimore Ave,
5.00(
11
)
Approved Pro
Green's Electric
13671 Baltimore Ave,
5.00(
11
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
260 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!

"Outstanding! Super professional. Offered advice on my electrical installation and did the work quickly. I was very pleased with the end installation."

Chris C on January 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!

"Outstanding! Super professional. Offered advice on my electrical installation and did the work quickly. I was very pleased with the end installation."

Chris C on January 2025


Avatar for J A Electric LLC.
J A Electric LLC.
4.80(
30
)
Approved Pro
J A Electric LLC.
4.80(
30
)
Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
92 local quotes requested

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

"Excellent, JA Electric arrived at the schedule time, kept me informed of progress during the project, cleaned up area, personally walked me through the finish job, and tested each outlet and GFI. I am very satisfied with the job and with JA Electric services"

David R on May 2025

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

"Excellent, JA Electric arrived at the schedule time, kept me informed of progress during the project, cleaned up area, personally walked me through the finish job, and tested each outlet and GFI. I am very satisfied with the job and with JA Electric services"

David R on May 2025

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Generator installations FAQs

Installing a whole-house generator costs about $5,000 on average. Prices range from $1,550 to $8,500, depending on size, brand, fuel type, and assembly. The size of your whole-house generator is the most significant cost factor, with large homes with high energy demands costing the most to power. Types of whole-home generators include:

  • Portable generators with 1kW–7.5kW capacity: $500–$2,000

  • Partial generators with 9kW–20kW capacity: $2,000–$6,300

  • Whole-house generators with 22kW–48kW: $5,000–$18,000

When maintained properly, a whole-house generator can last up to 20 years. Costs to maintain and repair generators vary by location and type of generator, but you can expect to pay about $150 to $300 per year for annual generator maintenance checks. An experienced generator service technician will inspect your generator’s engine filter, starting mechanism, fuel, lubrication, and coolant levels to keep your generator in good working condition for as long as possible.

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. 

Here’s what you can run with different wattages and types of generators:

Portable generator:

  • 2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers. 

  • 4,000 watts will keep two large appliances operating and a few smaller devices.

  • 8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.

Partial to whole-house generator:

  • 20,000 watts and above will make it seem like your home’s power is still on.

The value of installing a whole-house generator is that your home has guaranteed power, even if the power grid in your area is down. Whether a whole-house generator is worth installing in your home depends on how often you use it, your home’s location, and your lifestyle. For example, installing a whole-house generator is likely worth it if you:

  • Experience frequent or prolonged power outages

  • Work from home

  • Store a lot of cold food

  • Have a sump pump

  • Have a pump for well water

  • Use electronic medical devices

  • Live in a climate requiring heating or cooling

The homeowners guide to generator installations
From average costs to expert advice, get all the answers you need to get your job done.
A portable inverter generator
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Boy and girl jumping on the couch sofa
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outdoor diesel power generator
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emergency power supply outside home
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