*The Angi rating for Generator Install companies in Bismarck, MO 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 Bismarck, MO 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 March 20, 2026
Serving Bismarck, MO and surrounding areas
Approved
In business since 2019
Free estimates
Emergency services offered
"They showed up on time and worked threw the rain to get the generator installed within the time he quoted. They were also very polite."
+2
Serving Bismarck, MO and surrounding areas
Approved
In business since 1993
Free estimates
Emergency services offered
"Installed a back-up sump pump. Great job! Thank you!"
+3
Serving Bismarck, MO and surrounding areas
Approved
Super Service Award Winner
In business since 2024
Free estimates
Warranties offered
"Vinc came and gave estimate and was very professional. The original job turned into a bigger job and he handled that very well. He was upfront with us on any changes in cost and completed the project professionally and skillfully."
Serving Bismarck, MO and surrounding areas
In business since 2012
Free estimates
Emergency services offered
"Great! Quick notice to prepare install a gas stove that replaced a defective electric."
+7
Serving Bismarck, MO and surrounding areas
In business since 1995
Free estimates
Emergency services offered
"We hired Bi-State Electric to run a 20 amp circuit from our house to our new garden shed. This required Scott to hand dig a trench about 25 feet long between the house and shed. He installed a small porch light on the shed and a ceiling fan/light inside with switches to operate both. He also installed a total of 5 outlets at various locations inside the shed. As an added service, Scott installed a Whole House Surge Protector to our electrical panel and provided a safety inspection of the panel at no additional cost above his quoted price. Once the work was completed, the County Inspector came out and gave his stamp of approval."
Serving Bismarck, MO and surrounding areas
In business since 2023
Credit card accepted
Offers commercial services
"I have not received the invoice yet, so I am only speculating about the value for money question above; however, these guys did a fantastic job. They far superseded my expectations by accomplishing more than I had originally anticipated. They were courteous, professional, and competent and managed to get a tremendous amount of work done in a reasonable time. They even corrected something that another contractor had left undone. I will call these guys again when I need an electrician. They fixed two dimmer switches that have never worked properly the entire time we have lived here, repaired GFCI outlets, did some arduous work (literally ditch-digging) to replace a wire to the septic system that had gone bad, and offered great advice when I had lots of questions. They took great care to clean up after their work and removed their shoes every time, they entered the home to ensure the carpets were not dirty."
+17
Serving Bismarck, MO and surrounding areas
In business since 2023
Free estimates
Credit card accepted
Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime once you see our quality work. We're passionate about delivering an exceptional experience. When you hire us, you're hiring a team of professionals who are trained and skilled to deliver lasting value to your home. As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. We won't leave until the job is done right! Call or click to schedule an estimate today!
Serving Bismarck, MO and surrounding areas
In business since 2001
Free estimates
decades of experience and you can handle
Serving Bismarck, MO and surrounding areas
In business since 1993
Free estimates
Emergency services offered
We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!
+3
Serving Bismarck, MO and surrounding areas
In business since 2019
Free estimates
We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!
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.
The cost to install a generator transfer switch depends on several factors. Our guide will help you understand all of the costs.
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.
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.
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.
Whole home generator installations require a professional hand. Read this guide to help you decide which generator is best for your home.
Wondering who to hire to install a generator? Consult this guide to learn who to hire to install a generator or a transfer switch.
