Undine (Undine Texas, LLC / Undine Texas Environmental) provides water and wastewater services to numerous communities across Texas. Paying your bill on time helps avoid late fees and ensures continued reliable service. Undine offers convenient payment options through its official website, including a secure customer portal with one-time/guest payment capabilities, phone guidance to online payments, mail, and limited in-person assistance at local offices (where available by system).
- For the fastest one-time payment or to access the customer portal, visit the official Pay Online page at https://www.undinellc.com/customers/pay-online/.
- For complete billing instructions, FAQs, and payment options, refer to the Billing Questions & Concerns page at https://www.undinellc.com/customers/billing-questions-and-concerns/.
One-Time / Guest Payment Online
Undine provides a convenient online option for one-time payments. Many customers can make a quick payment without creating a full recurring account by using the portal’s guest or one-time payment features.
How to pay:
- Go to https://www.undinellc.com/customers/pay-online/ or the customer portal link provided there.
- Locate your account (some systems support searching by address or account number for one-time payments).
- Follow the prompts to complete payment with a credit or debit card or e-check.
Payments are processed securely with confirmation. First-time users may need to create a quick profile. The portal also supports recurring/automatic payments once registered.
Pay Online with Full Account Access
Register or log in to the secure customer portal for full features:
- View current and past bills
- Make one-time or scheduled payments
- Set up recurring/automatic payments
- Access usage history and account details
Use the Pay Online link on the official site to get started. The portal is available 24/7 once you have an account.
Pay Undine Water Bill by Phone
Undine does not accept credit or debit card payments directly over the phone or in person for security reasons.
Phone number: 888-201-4314 (toll-free) or your local system number (found on your bill or via the system finder on the website)
Customer service representatives can walk you through the online payment process step-by-step or assist with account questions during business hours (typically Monday–Friday, 8:00 a.m. – 5:00 p.m. Central Time). For water or sewer emergencies, use the emergency number listed for your specific system (often 866-271-4205 or local equivalents).
Pay by Mail
Mail your check or money order (payable to Undine Texas, LLC or as shown on your bill) along with the bottom stub of your paper bill.
Mailing address: Undine Texas, LLC P.O. Box 682288 Houston, TX 77268
Include your account number or the payment stub for proper crediting. Allow 7–10 business days for processing. Use the exact address on your current bill statement whenever possible.
In-Person Payments (Limited)
In-person options vary significantly by system/location. Some local offices or authorized locations may accept payments during limited hours. Undine generally directs customers to the online portal for credit/debit card payments. Cash or check payments may be accepted at certain local offices—call your specific system’s customer service number (found on your bill or the website’s system finder) to confirm current options and hours before visiting.
No widespread retail partner network (such as grocery stores or pharmacies) is currently promoted for Undine payments.
Automatic / Recurring Payments
Once registered in the customer portal, you can set up recurring/automatic payments from your bank account or card. This helps prevent late fees and missed payments. Contact customer service at 888-201-4314 if you need assistance enrolling.
Important Billing Notes
- Credit/debit card payments must be made online (phone and in-person card payments are not accepted).
- Late payments may incur fees as outlined in your local system’s tariff.
- Keep your account number readily available for all transactions.
- Undine serves many individual systems — always use the “Find Your System” tool on the website or check your bill for the most accurate local contact number and notices.
Customer Service and Contact Information
Toll-Free Customer Service: 888-201-4314 Corporate Office: 17681 Telge Rd, Cypress, TX 77429 (Mon–Fri, 8:00 a.m. – 5:00 p.m.) Email: [email protected] Fax: 713-647-0277
For system-specific contacts, emergencies, or local office information, enter your address on the Customers page at https://www.undinellc.com/customers/ to find the correct phone number and notices.
FAQs
How do I pay my Undine Water bill online as a guest or one-time payment? Visit https://www.undinellc.com/customers/pay-online/ and follow the prompts for one-time or guest payment options using your account details.
What phone number do I call for Undine Water billing help? Call 888-201-4314. Representatives can guide you through the online payment process (credit cards are not accepted directly over the phone).
Where do I mail my Undine Water payment? Send checks or money orders to P.O. Box 682288, Houston, TX 77268. Include the payment stub from your bill.
Can I pay my Undine bill in person with a credit card? No. Credit/debit card payments must be made online through the portal. Call customer service for assistance with the online process.
How do I set up automatic or recurring payments? Register in the customer portal via the Pay Online link and enroll in recurring payments, or call 888-201-4314 for help.
Does Undine charge convenience fees for online payments? Any convenience fees are disclosed during the online payment process and are typical for third-party processors.
How do I find my specific Undine system contact information? Use the “Find Your System” tool on https://www.undinellc.com/customers/ by entering your address.
What should I do if I cannot pay on time? Call 888-201-4314 immediately to discuss options and avoid late fees or service issues.