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

Avatar for Nunez Electric
Nunez Electric
4.9(
85
)
Fixed Generator - InstallPortable Generator - Install

Serving Cromwell, IN and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Emergency services offered

"Juan was on time and very professional. Did an excellent job adding a sub panel for a generator and even correct a code violation that was found in the main box when he opened it up. The time estimate and price quot where both right on the money. He also did a great clean up job when the work was finished. Would recommend him to anyone needing some electrical work."
Paint bay
Shop
Master bath vanity
Kitchen
Entry hall

+27

Response time2 days
16 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Tri-State Water, Power & Air
Tri-State Water, Power & Air
4.3(
8
)
Fixed Generator - InstallGenerator - InstallGenerator - Install - For Business

Serving Cromwell, IN and surrounding areas

Approved (Corporate)

In business since 1992

Emergency services offered

Warranties offered

"It was pretty rocky. At first. Several appoints made by Tri-State no one ever showed up.Crew showed up to install the Generator before the site survey and did not have necessary equipment or cooperation of Electric or gas company nor call before you dig had been notified. I called Tri-State to warn them the call before dig had never been preformed. They said they'd take care of it, did not happen until right before installation crew came back the second time. The first time they were here they could not have installed the generator even had they had all the parts because none of the utilities had been marked. Finally after about three months the Generac was installed and working. I had several questions that I could never get answered by calling Tri-State. One of the installation team had to come back a couple of weeks later to replace a damaged part and he answered all my questions. The guys who installed the Generac were great, the problem is your guys operation center and call center as far as I can see do not communicate very well. Anyway the generator has worked fine in several power outages this spring. I am happy right now but I live in dread something goes wrong and I have to call Tri-State for help."
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+2

65 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for M&D Electrical Solutions, LLC
M&D Electrical Solutions, LLC
New to Angi
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install+1 more

Serving Cromwell, IN and surrounding areas

Approved

Free estimates

Warranties offered

Credit card accepted

M&D Electrical Solutions, LLC is a family-owned business, founded in 2002. As a family ran business, we believe that it is a priority to do whatever it takes to meet and exceed our customers' expectations. We place the utmost importance on showing respect, understanding, and responding to customer concerns. Every time our team heads to the job site, we strive to provide the highest quality service at the best price. Service areas include Pierceton, Warsaw North Webster, Syracuse, Milford, Columbia City, Rochester, Culver and other surrounding areas.\n\nSpecialties include: New Construction Electrical, Remodel Electric, EV Charger Installation, Electric Service Upgrade, Generator Install, Repair, and Service.

7 neighbors recently requested a quote
Avatar for Ousley Mechanical Services LLC
Ousley Mechanical Services LLC
5.0(
1
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Cromwell, IN and surrounding areas

Approved

In business since 2025

Free estimates

is 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. is 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.

My jobs
My jobs
My jobs
My jobs
My jobs

+7

Response time5 hrs
Response rate98%
4 neighbors recently requested a quote
Advanced Backup Systems, LLC
New to Angi
Fixed Generator - InstallFixed Generator - Repair

Serving Cromwell, IN and surrounding areas

In business since 2010

Credit card accepted

We are a locally owned and operated company. We value honesty and integrity in all aspects of our business. We offer a variety of home improvement services that are customized to each individual project. We pride ourselves on the quality of our work, as well as our commitment to outstanding results. We look forward to building lasting relationships with our clients and guarantee your satisfaction!

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Generator Install FAQs, answered by experts

If you have a transfer switch properly installed, the generator and main electrical power cannot feed the system at the same time. However, you should still shut off the power at your main circuit breaker panel before activating the generator. If you do that, you’ll simply need to shut off the generator and reset your circuit breaker once the local power comes back on.

With proper maintenance, a whole-house generator can last between 20 and 40 years. The specific lifespan depends on how often and for how long the generator is used, and some models may have their life expectancy rated in hours of operation. To maximize its lifespan, expect to spend around $150 to $300 per year for annual maintenance checks from a qualified technician. During these checks, a technician will inspect the engine filter, starting mechanism, fuel, lubrication, and coolant levels. Consulting your installer and choosing a low-impact fuel like natural gas or diesel can also help ensure your generator lasts as long as possible.

Whole-house generators can run continuously for extended periods, even for weeks at a time (around 400 to 500 hours), as long as they have a sufficient fuel supply. However, this type of extensive use will increase wear and tear and can shorten the generator's overall lifespan. During long periods of operation, it's important to check and refill the engine oil as needed, potentially as frequently as daily depending on the model. If your generator uses a fuel tank, ensure it is kept full to prevent unexpected shutdowns.

As a safety measure, you should always turn off the main breaker while operating your generator’s backup breaker. In addition, you should also switch off all appliance breakers so you don't have a power surge when the main breaker turns back on. And finally, turning off the main breaker prevents back-feeding, which endangers utility workers with the risk of electrocution. Back-feeding could also destroy the electrical circuits of your neighbors if they use the same power network.

You may need a permit for a portable generator if you’ll be installing a transfer switch for your primary residence or similar work. Otherwise, a permit for other uses may not be necessary. Check your local building codes or ask a local generator installer for more information about your local regulations.

The Cromwell, IN homeowners’ guide to generator installs

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