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Top-Rated Generator install pros in Denmark - Updated Nov 2026

Avatar for Wisconsin Generators LLC
Wisconsin Generators LLC
5.0(
10
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Denmark, WI and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"I cannot say enough great things about Jamie and the team at Wisconsin Generators LLC. From the very first conversation, Jamie was professional, knowledgeable, and incredibly responsive. He took the time to walk me through all my options, answered every question thoroughly, and made sure I felt confident in the decision we were making. The installation process was seamless. The crew showed up on time, worked efficiently, and treated our property with respect. Their attention to detail and commitment to doing the job right was obvious from start to finish. Everything was clean, organized, and completed exactly as promised. What really sets Jamie apart is his integrity and customer-first approach. There was no pressure just honest recommendations and clear communication. If you’re considering a standby generator, I highly recommend Jamie and Wisconsin Generators LLC. Reliable service, expert installation, and true peace of mind. Five stars all The way!!"
Whole house back up
Installation Trailer
New propane generator
Partial home backup
Partial home backup

+1

21 neighbors recently requested a quote
Avatar for Emerald Electric, LLC
Emerald Electric, LLC
New to Angi
Fixed Generator - RepairPortable Generator - Repair

Serving Denmark, WI and surrounding areas

Approved

In business since 2022

Free estimates

Offers commercial services

Emerald Electric is proud to serve Wisconsin's electrical needs! Owner and operator Sawyer Effertz has over 12 years of experience in the industry. They're excited to take on new clients immediately. Call today for a free estimate on your next project!

Response time9 hrs
Response rate94%
3 neighbors recently requested a quote
River White Remodeling
New to Angi
Portable Generator - Repair

Serving Denmark, WI and surrounding areas

Approved

In business since 2010

Free estimates

River White Remodeling is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and responsibility in all of our jobs. We are a locally owned and operated business with more than 5 years of experience serving Appleton, WI and surrounding areas. There is no job too big, or too small for our team. Call today and let us put our experience to work for you

Tek Electric
2.3(
3
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Denmark, 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
Avatar for Cleveland Electric LLC
Cleveland Electric LLC
5.0(
1
)
Portable Generator - Install

Serving Denmark, WI and surrounding areas

In business since 2022

Free estimates

Emergency services offered

I'm a Master Electrician with over 20 years of hands-on experience in residential, commercial, and service electrical work. As a U.S. Army combat veteran, I bring discipline, integrity, & a strong work ethic to every project I take on. I believe in building strong relationships with my clients through clear communication, honesty, and dependable service. I'm highly knowledgeable in the National Electrical Code (NEC) & make sure costumers understand how it applies to their project so they feel confident and informed. Professionalism is at the core of my business. I take pride in completing every job with precision & ensuring complete costumer satisfaction. When you hire us, you're getting quality workmanship, fair pricing, and a reliable electrician who stands behind every job. \nWe provide free estimates for customers located in Sheboygan Co. & Manitowoc Co. For clients in surrounding areas, a $59 dispatch/travel fee applies; this fee is fully deducted from any approved estimate.

Response time1 day
Response rate100%
CR Fochs Electrical Contractors
New to Angi
Generator - Install - For BusinessGenerator - Repair - For Business

Serving Denmark, WI and surrounding areas

In business since 2017

CR Fochs Electrical Contractors services the needs of all commercial, industrial and residential customers throughout Northeast WI and the surrounding areas . We are your full service electrical contractor which understands the importance of quality and customer service. We offer services at a competitive rate with an emphasis on customer satisfaction.

Generator Install FAQs, answered by experts

No, you should never plug a generator directly into a wall outlet in your house. This practice is extremely dangerous, often illegal, and can cause "back-feeding," where power from the generator flows back into utility lines, creating a life-threatening hazard for utility workers. It can also damage your home's electrical system, including appliances like pumps and HVAC fans. If the main power is restored while the generator is connected, it can destroy the generator and cause an electrical fire. To safely connect a generator, you must use a professionally installed transfer switch or an interlocking kit, which prevents back-feeding by disconnecting your home from the utility grid before the generator provides power.

Sizing a generator is a careful process that requires calculating the electrical load of your entire house. You have to take into account every device you want to use and their wattage requirements, plus the wattage needed to start them, and look for a generator that can safely run all that at around 80% capacity.

In more practical terms, a small home can run on a 10,000-watt generator (and if you only want to power a few key appliances, much less than that). A mid-sized home may need something between 15,000 and 22,000 watts. Larger homes require 25,000 watts or more. 

To power a central air system during a power outage, the whole-house generator will need to be at least 5,000 watts, and this number will significantly increase for larger units. Check the specific wattage requirements of your AC unit to choose the right generator size. Consider consulting a generator installer to ensure your whole-house generator meets your electrical load needs.

Generators are usually sized by running watts and starting watts. Ideally, you’ll want a generator that can offer both the necessary running watts and starting watts for everything you need to power without going beyond 90% of its capacity. Calculate your home’s electrical load based on the breakers in your home or adding up the appliance and lighting needs of connected rooms.

Many services include assembling the unit and securing it in the window. Confirm with your provider.

The Denmark, WI homeowners’ guide to generator installs

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