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Verified Reviews for Generator Install pros in Overlea, MD

*The Angi rating for Generator Install companies in Overlea, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

*The HomeAdvisor rating for Generator Install companies in Overlea, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

Last update on December 31, 2025

Find Generator install pros in Overlea

Avatar for Able Electrical Services Inc
Able Electrical Services Inc
4.9(
468
)

Serving Overlea, MD and surrounding areas

Approved

In business since 1998

Free estimates

Warranties offered

"Everything about Able Electrical Services service was superb! I was in a jam, and Able Electrical Services came to the rescue. Both of the mechanics that assisted were excellent. Russell Ridgway was the primary mechanic and he was amazing! His work is superior and he exceeded my expectations every step of the way. For example, I needed electrical outlets to connect install a wet bar. He measured the wet bar and installed the outlets exactly where they were needed and ensured sufficient power was added to accommodate a kegerator and mini-frigs. I highly recommend Able Electrical Services and hope I never need to use any other electrician."
Kitchen Lighting
Modem Home
Response time1 day
1 neighbors recently requested a quote
Recommended by98%of homeowners
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Avatar for Clinton Electric Co Inc
Clinton Electric Co Inc
4.6(
172
)

Serving Overlea, MD and surrounding areas

Approved

In business since 1969

Emergency services offered

Warranties offered

"Clinton Electric is a very professional organization: responsive, efficient, quality materials, excellent workmanship and a reasonable price. Jordan Mayer, the electrician, who performed the installation was outstanding. I highly recommend this company."
Additional Photos
Additional Photos
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+2

Response time1 day
Response rate92%
6 neighbors recently requested a quote
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Avatar for Wolf Electric LLC
Wolf Electric LLC
5.0(
98
)

Serving Overlea, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Credit card accepted

"Alex is awesome, he upgraded or panel with a surge protector, installed recessed lighting, dimmer switches and installed panels behind our TV for a wireless look. He installed new ceiling fans, and a new dining room light fixture. He got the project done on time and its better than we hoped. His pricing was much better than the competition too!"
Response time6 hrs
1 neighbors recently requested a quote
Recommended by2%of homeowners
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Avatar for Kolb Electric Inc
Kolb Electric Inc
4.2(
222
)

Serving Overlea, MD and surrounding areas

Approved

In business since 1925

Free estimates

Emergency services offered

"Installer did a good job on installing ceiling fan with light kit. He was friendly and cleaned up after installation. Still working well 2 months later. The only things disappointing is that my initial phone quote was about $100 less than I was originally charged. I'm not sure if the difference was the labor I was charged to assemble the ceiling fan.

Recently, I was contacted by the Frederick Manager, Lou and he took care of my concerns. We discussed future job opportunities in my home. I would recommend this company for their good work and customer service."
Response time1 day
Response rate94%
7 neighbors recently requested a quote
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Avatar for Jefferson Electric Co.
Jefferson Electric Co.
5.0(
32
)

Serving Overlea, MD and surrounding areas

Approved

In business since 2012

Free estimates

Credit card accepted

"I selected Mr. Jefferson after talking with two other vendors. He arrived timely, worked quickly and competently, and provide good advice about the products which he installed. His price was competitive, and her recommended someone for another service that I needed. I will probably use him for future electrical projects."
100 amp sub
Sub panel 100 amp
rough in
rough in
rough in

+6

Response time1 day
Recommended by96%of homeowners
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Avatar for Electrical USA, Inc.
Electrical USA, Inc.
4.3(
41
)

Serving Overlea, MD and surrounding areas

Approved

In business since 1986

Free estimates

Credit card accepted

"GENERAC Maintenance and Repair. I just used Electrical USA for my home back up generator service and repair. They did a fantastic job very affordable, prompt and thorough. Definitely recommend them!"
Response time4 days
68 neighbors recently requested a quote
Recommended by73%of homeowners
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Generator Install questions, answered by experts

You can expect a diesel generator to last for up to 30,000 hours of use, which works out to 20 to 25 years with the proper maintenance, of course. That depends on how much you use it, so a diesel generator used for emergencies a couple of times a year will last a lot longer than a generator that takes over for a faulty electrical grid every month for a day or two. 

A 10,000-watt generator can run a small to mid-sized central AC unit (typically up to 3 tons or 36,000 BTU) along with a few other appliances. However, larger AC units or additional loads will require a bigger generator. Consult a local generator installer to ensure you add the correct size generator to your home.

The average cost to install a home generator is $5,200, but total costs can range from $500 to $18,000 or more. The final price depends on several factors, including the generator's size, type, brand, fuel source, and the cost of labor and assembly. The generator's size is the most significant cost factor, as units that can power larger homes with higher energy demands cost more.

Cost breakdowns by generator type are typically as follows:

  • Portable or Emergency Backup Generators (1kW–7.5kW): $500–$2,000

  • Partial-Home Generators (9kW–20kW): $2,000–$6,500

  • Whole-House Generators (22kW–48kW): $5,000–$18,000

To ensure you get the right size unit for your needs without overpaying, consider hiring an electrician to calculate the electrical load of your essential appliances. It is also recommended to get at least three quotes from qualified installers to find the best fit for your budget.

Generators run on a variety of fuel types, ranging from natural gas to solar power. Keep in mind that fuel costs varying by type:

  • Natural gas: $2,000–$21,000 per year 

  • Liquid propane: $2,000–$21,000 per year

  • Diesel: $3,000–$20,000 per year

  • Gasoline: $500–$3,000 per year

  • Solar generator: $2,000–$25,000 per unit

  • Battery backup: $10,000–$25,000 per unit

If your home already has a grinder pump and you’re still noticing issues (like frequently clogged toilets and sinks), it could be time to upgrade your grinder pump. Start by checking your existing horsepower. If there are four or fewer people living in your home, using a 1/2-horsepower grinder pump should be sufficient. Larger households should consider investing in a 1-horsepower grinder pump to maximize wastewater removal efforts.

The Overlea, 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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