The best review categories for Constellation are their plans and pricing, with an average of 4.0 stars, and the order experience, with an average of 4.0 stars.
Recent Good Review from Bob Eckstrom
Bad experience
| Constellation was told by Nicor that I couldn't switch even though I was within the 100 day time stamp according to Illinois law. Nicor was of no help. they just kept telling me no. Way to many people getting involved in this to get it right. I'm stuck with Nicor for a year according to them before I can switch. | |||
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—
Bob Eckstrom
from
Alsip, IL
on
September 22nd, 2021
Most Recent 5 Star Reviews
3 Customer Reviews Written Overall
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Good service
| Constellation prices were consistent, easy access to account info. We had no problems to contact them. | |||
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—
Gustafson
from
Cherry Valley, IL
on
March 17th, 2021
A rated company
| Good company and no problems | |||
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—
Barbara
from
Meredosia, IL
on
February 5th, 2020
Great experience
| Called to make sure rate and paperwork were done correctly. Rep was nice and knowledgeable. Everything check out and my bill is not exorbitant. | |||
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—
Good Rates And Nice Service
from
Hazel Crest, IL
on
June 5th, 2018
We are so happy to hear that you had a great experience with Constellation, its been our pleasure!
— Constellation
Most Recent 4 Star Reviews
1 Customer Reviews Written Overall
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By far, happy!
| I have had my service for 3 months for now; No problem so far :) Thanks | |||
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—
Constellation
from
Chicago, IL
on
September 11th, 2018
We are so happy to hear that you had a great experience with Constellation, its been our pleasure!
— Constellation
Most Recent 3 Star Reviews
1 Customer Reviews Written Overall
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Bad experience
| Constellation was told by Nicor that I couldn't switch even though I was within the 100 day time stamp according to Illinois law. Nicor was of no help. they just kept telling me no. Way to many people getting involved in this to get it right. I'm stuck with Nicor for a year according to them before I can switch. | |||
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| Likely to recommend |
—
Bob Eckstrom
from
Alsip, IL
on
September 22nd, 2021
Most Recent 2 Star Reviews
1 Customer Reviews Written Overall
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Renewal Rip Off!!
| They mislead you to wait until your renewal date when you phone in to get renewal rates and they are not competitive/ Therefore, you overpay for a month or two after the renewal because it takes that long to switch providers. | |||
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—
LJ
from
Libertyville, IL
on
September 11th, 2018
Thank you for taking the time to give us feedback. It is through feedback such as yours that we are able to provide our customers with the best experience possible. Dont hesitate to reach out to us with any questions you may have.
— Constellation
Most Recent 1 Star Reviews
3 Customer Reviews Written Overall
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CAUTION!!!
| UNEXPECTEDLY my therm rate went from avg. .44 to $2.43!!-6 times my avg bill!! Contacting "customer service" is next to impossible. I pray this is a mistake! | |||
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—
Dave
from
Lombard, IL
on
January 25th, 2021
Con game
| Let 2 young women into my house who told me my utility companies would remain the same. This is B.S. I will cancel Constellation ASAP | |||
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—
Marilyn Small
from
New Lenox, IL
on
October 6th, 2018
Someone messed up my order
| On May 3 I went online and changed energy providers through illinois energy ratings.com. I received a confirmation e-mail and then, I have heard nothing. As a matter of fact, I received an e-mail on July 3 from Champion Energy, who had been my provider for the past few years, thanking me for renewing my contract with them. Someone dropped the ball and I don't know who, but it would appear my request for a new provider did not actually go through. | |||
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—
Someone Messed Up My Order
from
Woodridge, IL
on
July 4th, 2018
We are so sorry to hear about your negative experience. Give us a call at 1-866-917-8271 so we can be sure to solve this issue.
— Constellation
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