Green Mountain Energy Phone Numbers and Emails

Toll-Free Number:

  • (866) 785-4668
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Customer Service:

  • (800) 274-5289
  • (877) 473-3646
  • (844) 245-9583
  • (844) 245-9582
  • (888) 232-3658
    New Jersey
  • (800) 636-5690
  • (800) 455-8545
    New York
  • (800) 542-8818
  • (800) 286-5856
  • (866) 280-3603


  • (512) 691-6100
    910 Louisiana St. Houston, TX 77002

New Commercial Service:

  • (855) 463-2489

Green Mountain Energy Emails:

Complaints/ Feedback
Customer Service
Illinois, Maryland, Massachusetts, New Jersey, New Jersey, New York, New York, Pennsylvania, Texas
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How to Contact Green Mountain Energy Customer Service?

Most Popular Number:

(866) 785-4668

What Is the Green Mountain Energy Customer Service Phone Number?

If you’re a residential customer, who has some questions about a greener and cleaner future for your house where you live with your family, below you’ll see appropriate Green Mountain Energy contacts. Just choose the state where you are and call the customer care team.

New York
Current customers: 1-800-636-5690
New customers: 1-877-216-4632

Current customers: 1-866-785-4668
New customers: 1-866-301-3120

New Jersey
Current customers: 1-844-245-9582
New customers: 1-800-810-7300

Do you have a company for which you are looking for environmental solutions and have questions? Here are the following telephone numbers:

New York


New Jersey

Find more company contacts by going to “Contact Us” in the “Customer Service” block on the official website.

How Do I Contact Green Mountain Energy Support via Live Chat?

If you’re a client from Texas and prefer to communicate with a company agent via online chat rather than at the company phone number, this feature is available to you in the “Contact Us” section. To use it, click on the orange button. The support operates during the following business hours: Monday through Friday from 8 a.m. to 7 p.m. CT. At other times it is turned off and, accordingly, the chat function is not available. So, plan your communication in advance to get effective help related to plans, services, the Green Mountain app, or something else in time.

Can I Contact Green Mountain Energy via My Account?

If you’re a registered user and have a Green Mountain Energy My Account on the official company site, first log in. To do this, move the mouse cursor to “My Account”, and select the client type and state from the drop-down menu list. Enter your email and password. Next, click on the “Contact Us” section. Here you may find various options for contacting Green Mountain Energy customer service, such as support numbers, chat, and social network icons. If you want to write a letter with your questions and feedback to the company email, just fill out a contact form by clicking the “Contact Us Online” in the Customer Service section.

What Are Green Mountain Energy Business Hours?

Green Mountain Energy customer service hours vary depending on the region. If you are a residential client in Texas, the company support team can answer you daily, from 7 a.m. to 10. p.m. CT. The business hours for new clients are the same. On the weekends, the company team operates from 7 a.m. to 9 p.m. CT. The help for commercial customers is available Monday through Friday from 8 a.m. to 5 p.m. CT. To find out the business hours in other states, go to the “Contact Us” section.

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Contact Information

Green Mountain Energy Website:

Green Mountain Energy Help Center:

Corporate Office Address:

Green Mountain Energy Company
910 Louisiana St
Houston, Texas 77002
United States

Green Mountain Energy Rating Based on 1 Review

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Summary of Green Mountain Energy Customer Service Calls

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Top Reasons of Customers Calls

Consumers Call the Most From

Why Do People Call Green Mountain Energy?

Request for Information Question:

  • “Check on the bill”

Account Question:

  • “I forgot my account number”

Payments and Charges Question:

  • “Can't Pay my bill”

Staff Question:

  • “Need service”

Other Question:

  • “Psy”
  • “Escalations”
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