*The Angi rating for Generator Install companies in Centertown, 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 Centertown, 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 October 19, 2025
Serving Centertown, MO and surrounding areas
Approved
Free estimates
Emergency services offered
Small jobs welcome
I am a retired journeyman electrician with an apprentice available for attic work and bigger jobs. I have experience installing charging stations, upgrading distribution panels, remodels, basement finishes, and have overseen Large lighting layouts and LED upgrades.
Serving Centertown, MO and surrounding areas
In business since 2008
Free estimates
Emergency services offered
"My project turned out to be alot more work than expected, (old house, new windows), but they stuck with the project, finished in a timely fashion and cleaned up after, even brought in a cleaning crew to clean from the dust and dirt of the old walls. The windows operate perfectly and look good. My only complaint is that they have not passed along the necessary warranty info for me to register my windows."
Serving Centertown, MO and surrounding areas
In business since 2001
Free estimates
Credit card accepted
"I thought they were very nice people. I called them and they came out. I plan on using them again."
Serving Centertown, MO and surrounding areas
In business since 2023
Free estimates
Credit card accepted
With years of experience in the electrical industry, we are the experts you need to take care of your home or business. We handle all of your electrical needs with great care. We will treat your home as we would treat our own. Give Plugged In Electric a call today, we look forward to working with you!
Serving Centertown, MO and surrounding areas
At Simmons Electric, we take pride in delivering safe, reliable, and high-quality electrical services you can count on. Whether it's a small repair, panel upgrade, new construction wiring, or a full remodel, we approach every job with professionalism, precision, and attention to detail.\nWe understand that inviting someone into your home or business requires trust. That's why we focus on clear communication, honest pricing, and getting the job done right the first time. Our goal is simple: provide dependable electrical solutions that keep your property powered safely and efficiently.\nFrom troubleshooting and lighting upgrades to service calls and complete installations, Simmons Electric is committed to quality workmanship and customer satisfaction.\nPowering your home. Protecting your investment. Earning your trust.
Serving Centertown, MO and surrounding areas
In business since 2024
Free estimates
Credit card accepted
Lake Technocracy we are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests and make their concerns the basis of our business.
Serving Centertown, MO and surrounding areas
In business since 1974
Free estimates
We have over 30 years of experience in the business. Here at Atephac, 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! Conveniently located in Columbia, we are ready to take your call.
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.
