Top-rated generator install pros.

Get matched with top generator install pros in Boulder, MT

Enter your zip and get matched with up to 5 pros

Need a pro for your generator install project in Boulder, MT?

Select your specific project to find the pro for you.

Verified Reviews for Generator Install pros in Boulder, MT

*The Angi rating for Generator Install companies in Boulder, 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 Boulder, 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 March 20, 2026

Find Generator install pros in Boulder

Avatar for Power Block Electric, LLC
Power Block Electric, LLC
5.0(
1
)

Serving Boulder, MT and surrounding areas

In business since 2006

Free estimates

Offers commercial services

"He's very fastidious, detail oriented, and clean electrician. Super friendly and extremely responsive when you have questions. Very reasonably priced and incredible value for the level of service he provides. Knowledgeable, and seems like he could do pretty much anything!"
Response time10 hrs
Recommended by100%of homeowners
Request Quote
Armko Construction and Electric
New to Angi

Serving Boulder, MT and surrounding areas

In business since 2008

Free estimates

Armko Construction and Electric, has over 20 years of experience. We pride ourselves on quality work and friendly service. We always strive to make sure we keep everything organized, clean and our scheduling as convenient for you as possible. We do free estimates and always do our best to work with you to ensure you get exactly what you want out of your home. We are always professional, honest and up front about all costs, no hidden fees. Every job always has a custom feel, built with your thoughts and needs in mind. We have the knowledge to show you some options and to make helpful suggestions to generate new ideas. We look forward to working with you in the future and bringing out the full potential in your home.

Response time2 days
Request Quote
Showing 1-10 of 12
Generator Install questions, answered by experts

A home that is 2,500 square feet will likely need a 20kW to 25kW generator. Consult your local generator installer to confirm the generator size needed to power your home before purchasing a new one. Be sure to consider how much power your necessary devices need to run.

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.

These advanced generators use a key fob or a smartphone app to remotely start, which is ideal for getting power back on immediately without venturing outside. This feature is more common on whole home generators, but you may be able to find it on large portable generators, too.

Costs range from $500 to $2,500, depending on generator type and installation complexity.

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. 

The Boulder, MT homeowners’ guide to generator installs

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

See all articles