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Avatar for Tri-State Water, Power & Air
Tri-State Water, Power & Air
5.0(
5
)
Fixed Generator - InstallGenerator - InstallGenerator - Install - For Business

Serving Altona, IL and surrounding areas

Approved (Corporate)

In business since 1992

Free estimates

Emergency services offered

We are the experts in the field of Whole Home Generator Sales and Installation, with over 20 years of experience in the game.\nWe provide turn-key installation by licensed professionals - 24 hour emergency service - Remote Monitoring - Long term maintenance and service by factory trained technicians.

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+3

21 neighbors recently requested a quote
Freedom Electrical LLC
5.0(
3
)
Portable Generator - Repair

Serving Altona, IL and surrounding areas

In business since 2024

Credit card accepted

"I needed security cameras installed, and I am so glad I ran across Mitchell through Angi. I can’t say enough good things about this guy. He was on time and communicated well in person and through text. He was fast, effective, efficient, thorough, honest, hardworking, and just an overall decent guy. Once again, my wife and I are so glad that we ran across Mitchell at Freedom Electric and Construction, and we are looking forward to working with him on future projects!"
New install
Upgraded panel
Before
Typical replacement
Response time5 hrs
Recommended by100%of homeowners
Quality Electric And Solar LLC
New to Angi
Portable Generator - Install

Serving Altona, IL and surrounding areas

In business since 2010

Free estimates

Emergency services offered

We can take on a wide range of residential and commercial electrical projects to include full installation for additions and remodels as well as wiring/panel upgrades, and a variety of other projects. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.

Avatar for Mangieri Electric
Mangieri Electric
New to Angi
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Altona, IL and surrounding areas

Free estimates

Emergency services offered

Warranties offered

Mangieri Electric is a trusted, locally owned electrical contractor serving residential, commercial, and industrial clients. We specialize in new construction, remodels, service upgrades, backup generator installations, low-voltage systems, and preventative maintenance. Our licensed electricians are known for quality workmanship, honest communication, and completing jobs on time and on budget. Whether you need troubleshooting, a full electrical system, or a custom solution, we’re committed to powering your home or business safely and efficiently. We're proud members of ABC and hold to the highest standards of professionalism and safety.

Generator Install questions, 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.

No, you should never plug a generator directly into a wall outlet in your house. This practice is extremely dangerous, often illegal, and can cause "back-feeding," where power from the generator flows back into utility lines, creating a life-threatening hazard for utility workers. It can also damage your home's electrical system, including appliances like pumps and HVAC fans. If the main power is restored while the generator is connected, it can destroy the generator and cause an electrical fire. To safely connect a generator, you must use a professionally installed transfer switch or an interlocking kit, which prevents back-feeding by disconnecting your home from the utility grid before the generator provides power.

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.

The amount of time a standby generator can run continuously is around 3,000 hours on average. However, standby generators can generally run indefinitely as long as they have a continuous fuel supply. Generators hooked up to a home’s natural gas supply are the best option for extended usage, as these won’t rely on a finite fuel supply based on how much you have in storage. Generators running on liquid propane or diesel won’t last as long, as these require fuel storage and regular refueling to stay running.

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.

The Altona, IL homeowners’ guide to generator installs

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