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Top-Rated Generator install pros in Marion - Updated Nov 2026

Avatar for Mister Sparky Electric - Indianapolis
Mister Sparky Electric - Indianapolis
4.0(
296
)
Fixed Generator - Install

Serving Marion, IN and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 2008

Emergency services offered

Warranties offered

"The team that came to our house did a great job! We just moved in and we got all our outlets and light switches replaced, and they installed a new breaker box as well. They were professional, on time, and knowledgeable. Would recommend to anyone and we will definitely give them a call if we need any work done in the future!"
Your Indianapolis Electricians!
We have your electrical repairs covered!
Available 24/7 for your electrical emergencies!
Get it done right, get it done safely.
Electricians you can trust!

+1

Recommended by85%of homeowners
Avatar for Knee's Electrical Service
Knee's Electrical Service
4.7(
97
)
Fixed Generator - Install

Serving Marion, IN and surrounding areas

In business since 1971

Free estimates

Warranties offered

"Kneeâ s Electrical is a very respect contractor in Grant County, Indiana area. I highly recommend this contractor for residential work. I want thank Charles and Kaden again for a great job and experience on my Generac Generator installation Thanks Again"
Knee's Electrical Service
Knee's Electrical Service
Knee's Electrical Service
Knee's Electrical Service
Knee's Electrical Service

+5

Response time1 day
6 neighbors recently requested a quote
Recommended by88%of homeowners
Showing 1-10 of 21
Generator Install FAQs, answered by experts

Many services include assembling the unit and securing it in the window. Confirm with your provider.

To power a central air system during a power outage, the whole-house generator will need to be at least 5,000 watts, and this number will significantly increase for larger units. Check the specific wattage requirements of your AC unit to choose the right generator size. Consider consulting a generator installer to ensure your whole-house generator meets your electrical load needs.

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. 

Natural gas and electricity rates vary significantly based on location, and pricing can change over time, too. It’s possible that in locations where natural gas is particularly inexpensive, it will cost less than grid-based electricity will. However, you should also factor in the generator’s initial costs and maintenance needs, as well as its noise level and if it can comfortably power all your home appliances.

In some situations, yes. Never try to put biofuel into any home generator without checking the specifics first. If a generator has the ability to run on diesel, it can also run pure biofuel (the clear kind made from seed oils, for example). But if you are using biofuel made from animal fats or vegetable oils, the generator will need significant modifications before it can handle a sludgier type of biofuel.

The Marion, IN homeowners’ guide to generator installs

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