*The Angi rating for Generator Install companies in Delavan, 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 Delavan, 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 July 23, 2025
Serving Delavan, WI and surrounding areas
Approved
Super Service Award Winner
In business since 2023
Free estimates
Emergency services offered
"Professional and detail oriented with the experience to get the job done right. Call them for your next project (big or small) and rest easy."
+28
Serving Delavan, WI and surrounding areas
Approved
In business since 1983
Emergency services offered
Warranties offered
"Everything went great. I think they did the best install they could to give me a quality job."
+9
Serving Delavan, 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!!"
+1
Serving Delavan, WI and surrounding areas
Approved
In business since 2013
Free estimates
Customers say: Quality work
"Great! Efficient, friendly, and answered any questions I had. Very happy with the fans they installed. Would reach out again!"
Serving Delavan, WI and surrounding areas
Approved
Super Service Award Winner
In business since 2022
Free estimates
Emergency services offered
"The cost was a little higher than what I had expected, but I understand why it was, and was very satisfied with the work done. And the electrician was thorough in explaining what needed to be done, and why. I would recommend him to anyone in need of electrical "problems" being resolved because of his friendly personality and obvious expertise."
+4
Serving Delavan, WI and surrounding areas
Approved
In business since 2021
Free estimates
Emergency services offered
"Double U Electric did a fantastic job. Work was done properly, professionally and at a fair price. Would recommend them to others without hesitation."
Serving Delavan, WI and surrounding areas
Approved
In business since 2019
Free estimates
Warranties offered
"This was such an easy experience for us. Everlight Solar did all the planning, completed all required forms, obtained permits, everything! When all approvals were in, they came and installed the electric and then the panels. It was turned on within a couple days. There has never been a problem with the system and we are delighted to be doing our part to reduce our carbon footprint for the planet. We have been very happy with the entire process, installation and service from Everlight Solar!"
+16
Serving Delavan, WI and surrounding areas
Approved
In business since 2024
Free estimates
Warranties offered
"How’s this? Full disclosure — I’m the proud parent of the guy behind Precision Power LLC, but I’d recommend Hunter even if I wasn’t! He’s a licensed Master Electrician who takes real pride in doing things the right way, not just the fast way. Hunter handled our new lighting and several electrical projects with professionalism, precision, and an eye for detail. He’s reliable, fair, and genuinely cares about his customers. If you want quality electrical work done right the first time, Precision Power LLC is the one to call."
+8
Serving Delavan, WI and surrounding areas
Approved
In business since 2019
Free estimates
Emergency services offered
"Robert was great. I needed help installing my 75" tv. I left a message over the weekend. He called me in the morning on Monday, and TV was installed that same afternoon. He was able to provide the mount and at a fair price. All in all, very glad to find his service and expertise. After the mounting we chatted about other upgrades I wanted to do and he gave me some helpful advice on what to think about. I would definitely recommend his services."
+24
Serving Delavan, WI and surrounding areas
Approved
Super Service Award Winner
In business since 2020
Free estimates
Emergency services offered
"Bill arrived within 1 day of contacting me. He wired a connection for a new hot tub and replaced the interior circuit breaker to the correct size. The work was professional and completed when he estimated it would be done by. I would hire American Pride Electrical for any future electric jobs."
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.
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 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
From average costs to expert advice, get all the answers you need to get your job done.
Natural gas generators are whole-home standby generators that are connected to your home’s natural gas line. The average cost for a natural gas generator is $12,000.
The average cost of a whole-house generator falls between $5,000 and $25,000. Keep reading to learn how much you can expect to spend.
The cost to install a generator transfer switch depends on several factors. Our guide will help you understand all of the costs.
Whole home generator installations require a professional hand. Read this guide to help you decide which generator is best for your home.
Before deciding between a gas generator and a natural gas generator, explore the differences. Compare gas vs. natural gas generator with our informative guide.
Generators should give you peace of mind, but you’ll only get that if your installer knows what they’re doing. Learn how to hire a pro and what red flags to look for.
