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Verified Reviews for Generator Install pros in Vandalia, IL

*The Angi rating for Generator Install companies in Vandalia, IL 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 Vandalia, IL 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 October 26, 2025

Find Generator install pros in Vandalia

Avatar for Accent Tel USA

Accent Tel USA

3501 Bessie Coleman Blvd, Suite 25203
4.89(
9
)
•Approved Pro

Accent Tel USA

3501 Bessie Coleman Blvd, Suite 25203
4.89(
9
)
•Approved Pro
Customers say: Quick response
16 years of experience
Free onsite estimate

Our Company provides a one-stop solution for all of your voice, internet, and telecom needs. Leveraging the Cloud we provide your Office state-of-the-art telephones for little or no upfront cost striving to keep your monthly costs the same. Sound too good to be true? Give us a call and we will show you how.

"Telephone System - Install or Upgrade - For Business "

Anthony O on September 2025

Our Company provides a one-stop solution for all of your voice, internet, and telecom needs. Leveraging the Cloud we provide your Office state-of-the-art telephones for little or no upfront cost striving to keep your monthly costs the same. Sound too good to be true? Give us a call and we will show you how.

"Telephone System - Install or Upgrade - For Business "

Anthony O on September 2025

ADS Electric Company LLC

215 West Gallatin St
New on AngiNew on Angi
•Approved Pro

ADS Electric Company LLC

215 West Gallatin St
New on AngiNew on Angi
•Approved Pro
26 years of experience
Free onsite estimate

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!

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!

AP-Construction

303 W National St.
4.50(
2
)
•Approved Pro

AP-Construction

303 W National St.
4.50(
2
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
15 years of experience

We are a locally owned and operated company that values honesty and integrity in all aspects of our business. We offer a variety of general contractor home improvement services that are customizable 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 and guarantee your satisfaction!

"They were a group of people that always made you smile, and while listening to them when I was working in my office you could hear them laughing they enjoy what they re doing. I will have them back to do more. They re a great group of people they have come into your home because your house the way you want it"

Jo J on July 2020

We are a locally owned and operated company that values honesty and integrity in all aspects of our business. We offer a variety of general contractor home improvement services that are customizable 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 and guarantee your satisfaction!

"They were a group of people that always made you smile, and while listening to them when I was working in my office you could hear them laughing they enjoy what they re doing. I will have them back to do more. They re a great group of people they have come into your home because your house the way you want it"

Jo J on July 2020

Avatar for Tri-State Water, Power & Air

Tri-State Water, Power & Air

1656 HEADLAND DR
1.00(
1
)

Tri-State Water, Power & Air

1656 HEADLAND DR
1.00(
1
)
33 years of experience

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

"They initially contacted me via email ready to make a visit for the install. Said that they could do the project no problem. Then when they realized I wouldn’t be buying a generator from them, which I had TOLD them upfront, they canceled on me. That is not an acceptable way to do business. They should simply state that they only install generators that they sell and not waste my time."

James K on May 2025

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

"They initially contacted me via email ready to make a visit for the install. Said that they could do the project no problem. Then when they realized I wouldn’t be buying a generator from them, which I had TOLD them upfront, they canceled on me. That is not an acceptable way to do business. They should simply state that they only install generators that they sell and not waste my time."

James K on May 2025

Gatto Electric, Inc

4552 N. Sayre Avenue
No reviews yet

Gatto Electric, Inc

4552 N. Sayre Avenue
No reviews yet
14 years of experience

Licensed, bonded and insured contractors, 24/7 emergency service, paperless billing, excellent customer service, professional technicians, custom electrical design planning, custom installations, custom remodeling.

Licensed, bonded and insured contractors, 24/7 emergency service, paperless billing, excellent customer service, professional technicians, custom electrical design planning, custom installations, custom remodeling.

My Classic Car Trader LLC

312 Prospect Ave
2.00(
1
)

My Classic Car Trader LLC

312 Prospect Ave
2.00(
1
)
53 years of experience

Sales, Service & Rebuilding of Antique and Classic Car Components such as, Carburetors, Starters, Generators, Fuel Pumps, Double & Single Action Fuel Pump Rebuilding, Water Pumps, Hydraulic Top Pumps, Distributors, and DELCO Knee Action Shocks, We also carry a complete line of NOS and NORS parts. We offer FREE Technical advice for any YEAR Classic Car 609-462-7412

"Beware. They charged me double shipping even after I told them I would wait so I wouldn’t have to pay two shipping fees. The last item was a fuel pump that I had a problem with. I have made 4 calls to ask for help with no return call. Poor"

Frank H on July 2020

Sales, Service & Rebuilding of Antique and Classic Car Components such as, Carburetors, Starters, Generators, Fuel Pumps, Double & Single Action Fuel Pump Rebuilding, Water Pumps, Hydraulic Top Pumps, Distributors, and DELCO Knee Action Shocks, We also carry a complete line of NOS and NORS parts. We offer FREE Technical advice for any YEAR Classic Car 609-462-7412

"Beware. They charged me double shipping even after I told them I would wait so I wouldn’t have to pay two shipping fees. The last item was a fuel pump that I had a problem with. I have made 4 calls to ask for help with no return call. Poor"

Frank H on July 2020

Avatar for Griffin Electric Inc

Griffin Electric Inc

340 S Schrader Ave
3.67(
3
)

Griffin Electric Inc

340 S Schrader Ave
3.67(
3
)
Customers say: Quick response
86 years of experience

We offer financing through FTL Finance for large projects such as new Furnace, Air Conditioning and Boiler Systems.

"Woke up w/o heat on a frigid January morning. After failing to get the furnace back on, we called Griffin. The owner took the call and arrived within 30 minutes. He diagnosed the problem, ran to town to get a new part, and had it installed and up-and-running in less than 2 hours, all w/o breaking the bank. He was friendly, professional, and honest."

Kurt J on January 2022

We offer financing through FTL Finance for large projects such as new Furnace, Air Conditioning and Boiler Systems.

"Woke up w/o heat on a frigid January morning. After failing to get the furnace back on, we called Griffin. The owner took the call and arrived within 30 minutes. He diagnosed the problem, ran to town to get a new part, and had it installed and up-and-running in less than 2 hours, all w/o breaking the bank. He was friendly, professional, and honest."

Kurt J on January 2022

Avatar for Fowler Heating & Cooling

Fowler Heating & Cooling

423 S Court St
4.64(
22
)

Fowler Heating & Cooling

423 S Court St
4.64(
22
)
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers

Fowler Heating and Cooling is Family owned and operated. Serving the Southern Illinois Area since 1979. Specializing in Heating, Air Conditioning, Furnaces, and Duct Cleaning. Our dedication and appreciation of our customers and their needs has resulted in over 70% of our business comes from referrals. We care about our quality of our work, and the relationships with our customers. ‎ [email protected].

Fowler Heating and Cooling is Family owned and operated. Serving the Southern Illinois Area since 1979. Specializing in Heating, Air Conditioning, Furnaces, and Duct Cleaning. Our dedication and appreciation of our customers and their needs has resulted in over 70% of our business comes from referrals. We care about our quality of our work, and the relationships with our customers. ‎ [email protected].

Generator Install questions, answered by experts

A 1,500 square foot home will likely need a 15kW to 20kW generator. When deciding on whole-house generator size, add up the total wattage of the devices that you’d like to continue running during a power outage. That way, you can ensure you purchase a generator that can power your necessary appliances or medical equipment during an electrical emergency.

You can determine what size generator you need by listing the various appliances it will power during an outage. Write down the start-up watt usage, and then add them all together. 

A 7,500-watt generator will run your refrigerator, freezer, well pump, and lighting circuits without a problem. However, you’ll need an extra 3,000 to 4,500 watts to run your water heater and another 5,000 to 25,000 watts to run your electric furnace. In these instances, a whole-home generator is your best bet for running your critical equipment.

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.

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.

Potential benefits of using a natural gas generator include reducing your carbon footprint, lower likelihood of carbon monoxide exposure, budget-friendly operating costs, and low-maintenance, continuous fuel supply. Some possible drawbacks, though, include higher initial installation costs, dependency on a natural gas supply, and installation complexity. Keep in mind that pros and cons will vary based on the type and brand of natural gas generator. 

The Vandalia, IL homeowners’ guide to generator installs

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

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