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Contact Green Mountain Energy Customer Service

How to Reach a Person at Green Mountain Energy

Verified Contact Information

Toll-Free Number:

  • 1-866-785-4668
    TEXAS
Call Now
Send Message

Customer Service:

  • 1-800-274-5289
    ILLINOIS
  • 1-877-473-3646
    MARYLAND
  • 1-844-245-9583
    MASSACHUSETTS
  • 1-855-463-2489
    New Commercial Service
  • 1-844-245-9582
    NEW JERSEY
  • 1-888-232-3658
    New Jersey
  • 1-877-216-4632
    New Residential Customers
  • 1-800-810-7300
    New Residential Customers
  • 1-800-636-5690
    NEW YORK
  • 1-800-455-8545
    New York
  • 1-800-542-8818
    OREGON
  • 1-800-286-5856
    PENNSYLVANIA
  • 1-866-280-3603
    Texas
  • 1-866-301-3120

Headquarters:

  • 1-512-691-6100
    910 Louisiana St. Houston, TX 77002

Complaints/ Feedback:

feedback@greenmountain.com

Customer Service:

ilcustomercare@greenmountain.com
Illinois
mdcustomercare@greenmountain.com
Maryland
macustomercare@greenmountain.com
Massachusetts
njcustomercare@greenmountain.com
New Jersey
pjmbiz@greenmountain.com
New Jersey
nybizcs@greenmountain.com
New York
nycustomercare@greenmountain.com
New York
pacustomercare@greenmountain.com
Pennsylvania
gmecbizcare@greenmountain.com
Texas

Green Mountain Energy Customer Service Overview

The aggregated data is based on calls made from PissedConsumer.com website and questionnaires provided by PissedConsumer.com users.

Call Volume by Day
sun
mon
tue
wed
thu
fri
sat
Most Popular Green Mountain Energy Phone Number
1 (866) 785-4668
Average Calls duration
1 minute
Issue Resolution Rate
Low (0% reported full resolution)
Contact Method Distribution
100% phone
Common Reasons for Contact
Account, staff, payments and charges
Prepare before the call to Green Mountain Energy
Email, phone number or address or zip code
View full overview

How to Contact Green Mountain Energy Customer Service?

Most Popular Number:

(866) 785-4668
TEXAS
Total calls: 12 Last call: Mar 18, 2026

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

Texas
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
1-800-455-8545

Texas
1-866-280-3603

New Jersey
1-888-232-3658

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

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.

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.

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.

PissedConsumer Club

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

Summary of Green Mountain Energy Customer Service Calls

13 TOTAL
CALLS
01:28 AVG CALL
DURATION
0% ISSUES
RESOLVED

Top Reasons of Customers Calls

Consumers Call the Most From

Why Do People Call Green Mountain Energy?

Account Question:

  • “Login help”
  • “Login”
  • “I forgot my account number”

Staff Question:

  • “New service”
  • “Need service”

Payments and Charges Question:

  • “Want to make a payment online & system won’t let me.”
  • “Can't Pay my bill”

Product/ Service Question:

  • “Complaint”

Request for Information Question:

  • “Check on the bill”

Other Question:

  • “Psy”
  • “Escalations”

Compare Green Mountain Energy Customer Service To

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Frequently Asked Questions

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Phone numbers published on the official company website or its verified social media pages are considered authoritative at the time of the information collection. For contacts obtained from secondary sources, the PissedConsumer team conducts risk screening and additional validation before publication. We also promptly verify any phone numbers reported by the community and remove records that fail to pass verification or update their status.
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