A rated company
Good company and no problems
Plans & Pricing
Order Experience
Customer Service
Account Management
Likely to recommend

Barbara from Meredosia, IL on February 5th, 2020
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
Plans & Pricing
Order Experience
Customer Service
Account Management
Likely to recommend

Marilyn Small from New Lenox, IL on October 6th, 2018
By far, happy!
I have had my service for 3 months for now; No problem so far :) Thanks
Plans & Pricing
Order Experience
Customer Service
Account Management
Likely to recommend

Constellation from Chicago, IL on September 11th, 2018
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.
Plans & Pricing
Order Experience
Customer Service
Account Management
Likely to recommend

LJ from Libertyville, IL on September 11th, 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.
Plans & Pricing
Order Experience
Customer Service
Account Management
Likely to recommend

Someone Messed Up My Order from Woodridge, IL on July 4th, 2018
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.
Plans & Pricing
Order Experience
Customer Service
Account Management
Likely to recommend

Good Rates And Nice Service from Hazel Crest, IL on June 5th, 2018







Reviews Overview
The best review categories for Constellation are the order experience, rated at 3.7 out of 5, and their billing & account management system, rated at 3.7 of 5.
5 Stars
33%
 
4 Stars
17%
 
3 Stars
0%
 
2 Stars
17%
 
1 Stars
33%
 
3.3 / 5
Overall
2.8 / 5
Price, Plans and Promotions
3.7 / 5
Order Experience
3.2 / 5
Customer Service
3.7 / 5
Billing and Account Management
3.0 / 5
Likely to Recommend
About Constellation



All Constellation Natural Gas Plans

Plan Name
Company
/
Rating
Length
Price
VS. Nicor
1 Year Fixed
12 months
$0.449 / therm