*The Angi rating for Generator Install companies in Manhattan, MT 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 Manhattan, MT 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 13, 2025
Serving Manhattan, MT and surrounding areas
Approved
In business since 2005
Free estimates
Emergency services offered
"James came as promised, shopped for the best price on wire we needed and found the break in our wire (under ground) and fixed it."
+3
Serving Manhattan, MT and surrounding areas
Approved
In business since 1996
Free estimates
Small jobs welcome
Harness the power of nature and achieve energy independence with Independent Power, founded in Bozeman, Montana and providing the highest quality HVAC, solar and battery systems since 1996. Our team of experts designs and installs high-impact, durable heating & cooling, and solar energy systems, using cutting-edge technology. We can also integrate your system with battery storage, so you'll keep the lights on when the grid is down. Whether you're a homeowner, business owner, or organization, Independent Power can help you gain freedom from the traditional energy grid. We specialize in residential, commercial, and off-grid installations.
Serving Manhattan, MT and surrounding areas
Approved
Super Service Award Winner
In business since 2012
Small jobs welcome
Offers commercial services
"Completed updating of bathroom and kitchen. Carlos is thoughtful and does great work. Was willing to work with us as we did part of the work. Both updates look 100% better and I would definitely hire Carlos again!"
+59
Serving Manhattan, MT and surrounding areas
Approved
In business since 2024
Free estimates
Emergency services offered
"Sebastian was top rate. On time, diagnosed issue, checked outlets & breakers. He had the right parts in the truck and was able to install new breakers (replacing the prone to fail AFI/GFI combo). Refrigerator is safe and the dishwasher/disposal is working again. Very happy with the great service and the on-the-job explanations that he had to help me be an educated customer. I will definitely use Sebastian on my coming up home improvement projects."
Serving Manhattan, MT and surrounding areas
Approved
Super Service Award Winner
In business since 2023
Free estimates
Emergency services offered
"Josh did a fabulous job assembling a large and complicated home gym. He had terrific follow-through and communications throughout. He is very talented and conscientious. We could not be more delighted with his help with this difficult project!"
+4
Serving Manhattan, MT and surrounding areas
Approved
In business since 2025
Emergency services offered
Warranties offered
Aesir Electric is a premium residential electrical service company serving Bozeman, Belgrade, and the surrounding Gallatin Valley. We focus exclusively on residential service work. Service is our sole focus, not a way to fill down-time between new-builds.\n\nEvery job is quoted with multiple flat-rate options, no hidden charges, and completed to a standard we'd be proud to stand behind years from now. We're a Service-Disabled Veteran-Owned Small Business, and we offer a 10% discount to all verified veterans and active-duty military.\n\nEvery job is backed by our unique Lifetime Craftsmanship Warranty because we expect to be your electrician for life.
+10
Serving Manhattan, MT and surrounding areas
Approved
In business since 2009
Free estimates
Emergency services offered
"He was pretty good, did work in timely manner and cleaned up."
Serving Manhattan, MT and surrounding areas
Approved
In business since 2023
Free estimates
Customers say: True professional
"Sean did a good job and worked efficiently. He was able to do all the tasks we requested. I'm satisfied with his work. He did our job on a Saturday and I was very happy he went out of his way to work us into the schedule. I would hire him again, no question. The only disappointment was that he didn't clean up afterward as well as I thought would be done. For example, where metal siding had to be cut to install new fixtures, there were still pieces of the sharp metal lying around (larger than an inch square)."
Serving Manhattan, MT and surrounding areas
Approved
In business since 1985
Free estimates
Emergency services offered
"I was introduced to Sacry through a third party. But I have now found an electrician for life! They showed up with little notice, analyzed the scope of what to be done, and made some recommendations. These recommendations were not so they could charge more, but rather so the job could be completed safely, and look professional. Sacry Electric went out of there way to make sure I was satisfied. I wish more companies had the same values as Sacry, putting the customers wants, needs, AND budget as their only priorities! Thanks again Sacry! I will be calling again soon!"
Serving Manhattan, MT and surrounding areas
Approved
Super Service Award Winner
In business since 2023
Free estimates
Emergency services offered
"Excellent service! Very knowledgeable about products and an expert in alarm systems, placement of cameras and explanation of how the system works. We have peace of mind knowing our home is protected from intruders, fire and flood (monitoring). Platinum Tech Services has exceptional customer service and goes the extra mile."
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.
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.
Before installing a fixed generator, think about your use and space. Review these backup generator questions to prepare for a talk with your contractor.
Depending on your needs, many types of generators can power your home, RV, or campsite. Check out our guide for the best types of generators.
Installing a portable generator can power key appliances during outages. Learn about the best backup generator questions to discuss with a pro.
