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Verified Reviews for Generator Install pros in Merrill, WI

*The Angi rating for Generator Install companies in Merrill, WI 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 Merrill, WI 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 February 26, 2026

Find Generator install pros in Merrill

Avatar for Wisconsin Generators LLC
Wisconsin Generators LLC
5.0(
9
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Merrill, WI and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"Very prompt and professional, installation was in a timely manner. Very helpful with any questions and explanations. After job was complete. Highly recommended."
Whole house back up
Installation Trailer
New propane generator
Partial home backup
Partial home backup

+1

34 neighbors recently requested a quote
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Avatar for Frasier's Plumbing & Heating, Inc.
Frasier's Plumbing & Heating, Inc.
4.1(
33
)
Fixed Generator - RepairFixed Generator - Install

Serving Merrill, WI and surrounding areas

Approved

In business since 1918

Free estimates

Emergency services offered

"Did not take long..If you know what you want and have the products you want installed the company has the rest of supplies and it gets put in the same day...my project was easy."
Safety first
Time for a little R&R
Meet the Team
Eugene approves
Duck Whispers

+7

Response time1 day
Response rate100%
103 neighbors recently requested a quote
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Luke Electrical
4.6(
17
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Merrill, WI and surrounding areas

In business since 2006

Free estimates

Credit card accepted

"We were hit by a lightening, and he came right over to help us with our electrical issues. He replaced the fuse box for us, and did an excellent job. Very easy to talk to, and explained everything, thorough. I would hire them again."
Response time4 days
Response rate100%
Recommended by93%of homeowners
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Avatar for H&H Electric
H&H Electric
5.0(
11
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Merrill, WI and surrounding areas

In business since 2019

Credit card accepted

Offers commercial services

"H&H Electric did great work. We used Nic for multiple projects. I was very satisfied with his work. He did a great job communicating. I would definitely recommend H&H for any electrical needs."
Response time2 days
Response rate92%
Recommended by54%of homeowners
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Tek Electric
2.3(
3
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Merrill, WI and surrounding areas

In business since 2002

Free estimates

Emergency services offered

"First, they were recommended to us for the whole house generator by home depot.  We were so happy with the generator that we had him do a bathroom fan at my house and a bathroom fan at my son's house.  I did some checking and that was a reasonable price.  With the work he did, it was more than reasonable.  The job was a little more involved than he thought it would be and he didn't have any problem with any of it.  Without anything to judge the pricing from, other than online and a couple of guys I had come over who weren't on the same page as me, I'd say excellent.  The quality was top of the line.  As soon as he got the generator, he got over here to put it in. As a matter of fact, I am thinking about calling him again for something."
Recommended by50%of homeowners
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Ray's Electric Service, LLC
5.0(
1
)
Fixed Generator - InstallGenerator - Install - For BusinessGenerator - Repair - For Business+2 more

Serving Merrill, WI and surrounding areas

In business since 1936

Free estimates

With several years of experience, we work hard to bring each customer the best possible service and quality available. We look forward to working with you on your next project. We welcome your questions and thank you for your interest.

Response time2 days
Response rate100%
Recommended by100%of homeowners
Request Quote
Generator Install questions, answered by experts

To determine the right size generator for your house, you should calculate the total wattage of the appliances and devices you want to power during an outage. List all essential items, note their start-up wattages, and add them together.

Here are some typical wattage requirements for common appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 to 4,500 watts

  • Electric furnace: 5,000 to 25,000 watts

A 7,500-watt generator might be sufficient for essentials like a refrigerator, freezer, well pump, and lighting circuits. However, for high-demand items like a water heater or furnace, a whole-home generator is a better choice. A portable generator may be enough if you only need to power a few critical items.

While home square footage can offer a rough estimate, it is not always a reliable indicator. For reference, here are some typical generator sizes based on square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14 kW

  • 2,500 sq ft: 12–16 kW

  • 3,000 sq ft: 16–20 kW+

For the most accurate sizing, consult a professional who can calculate your home's peak and average power consumption and recommend the optimal generator.

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.

In most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home generators. A permit for a generator usually costs between $50 and $250, depending on where you live. Your electrician or certified generator installer will usually pull the permit for you—and might be required to do so by your building department—but you’ll be on the hook for the cost of the permit. You should ask your installer before agreeing to any work if they will pull the necessary permits for your project.

A 1,500 square foot home will likely need a 15kW to 20kW generator. When deciding on whole-house generator size, add up the total wattage of the devices that you’d like to continue running during a power outage. That way, you can ensure you purchase a generator that can power your necessary appliances or medical equipment during an electrical emergency.

Natural gas generators are designed to run for extended periods of time, such as power outages during a natural disaster. Since there’s no limit to the supply of natural gas, they don’t need to stop for refills. However, generators do need maintenance, including pauses to check and add oil. Constantly running them will also cause a lot more wear and tear, leading to a shorter lifespan.

The Merrill, WI 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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