Monarch Water Utilities 2026: Bill Pay, Login & Phone

TEXAS WATER & WASTEWATER CUSTOMER GUIDE • 2026

Monarch Utilities Customers: Pay Your Water Bill, Log In and Get Help

Still seeing Monarch Utilities I, L.P. or SouthWest Water Company on an older water bill? Monarch is a legacy utility name associated with the Texas operations now served through Texas Water Utilities (TWU).

For customers whose accounts are managed by Texas Water Utilities, the current official My Account portal handles payments, bill history, AutoPay, service requests and notifications.

Customer service: 866-654-7992. The same number handles water and wastewater emergencies 24 hours a day.

Billing & Account Support

866-654-7992
Monday–Friday, 8 AM–4:30 PM Central Time.

Water Emergency Number

866-654-7992
Available 24 hours, 365 days a year.

Current Online Portal

account.mywater.us
Account details, payment and service requests.

Account Number

10 digits, printed on your current utility bill. Needed for registration and customer service.

Is Monarch Utilities Still the Water Company in 2026?

Monarch Utilities I, L.P. was part of SouthWest Water Company’s Texas operations. SouthWest Water began adopting the Texas Water Utilities name in 2021. Texas Water Utilities now provides the current customer-service and payment resources for these legacy accounts.

Customers may encounter several names in older records:

  • Monarch Utilities I, L.P.: Legacy legal or operating name on older notices and documents.
  • SouthWest Water Company: Former umbrella branding used for Texas utility customers.
  • Texas Water Utilities: Current Texas customer-facing utility brand.
  • Nexus Water Group: Corporate group associated with the present water utility operations.
Which website should you use? If your current account is billed by Texas Water Utilities, use mywater.us/texas and follow its official My Account link. Do not select a third-party bill-pay listing simply because it still displays the Monarch name.

Monarch-related regulatory documents and historical service-area records remain available through the company’s Tariffs & Regulatory Notices page.

How to Pay a Monarch Water Utilities Bill Online

The current My Account portal offers one-time and recurring payments, billing history and account management.

Before starting, have your latest utility statement, 10-digit account number, payment method and service-address ZIP code ready.

Pay Through the Official Customer Portal

  1. Open the correct payment website. Visit Texas Water Utilities My Account.
  2. Select the payment route. Sign in to your account or choose the available one-time payment option.
  3. Find your utility account. Use the 10-digit account number printed on your current statement. Make sure the service address is correct.
  4. Check the amount owed. Review the current bill, due date and any previous outstanding balance.
  5. Select a payment method. Choose from the eligible bank account, card or digital wallet options displayed.
  6. Review fees and submit. Verify the payment amount, any convenience fee and total before confirming the transaction.
  7. Keep the confirmation. Save the receipt until the payment appears in your account history.

The official portal supports major credit and debit cards, PayPal, PayPal Credit, Venmo, Apple Pay and Google Pay. Availability may depend on the account and selected payment type.

If you have received a disconnection notice: The company recommends paying through My Account using a credit card or electronic check for faster posting. If payment is made within five business days of the scheduled disconnection date, contact customer service to confirm that the payment has been received.

Texas Water Utilities Login and New Account Registration

In 2026, the company uses the My Account customer portal. This replaces older customer-facing payment systems and gives customers access to usage, notifications, account management and bills.

Register Your Utility Account

  1. Open My Account registration instructions.
  2. Select the Sign Up option to open the registration page.
  3. Enter the 10-digit account number from your current utility bill.
  4. Enter your service address’s five-digit ZIP code.
  5. Complete the profile information and any required verification.
  6. Sign in and confirm that your utility account is linked correctly.

Once registered, you can review previous bills, monitor water use, check payment history and update contact details.

What Changed in the 2026 Account System?

In July 2026, Texas Water Utilities introduced additional My Account features as part of its wider Texas utility-system integration.

The company instructed customers transitioning from older customer portals to use their current 10-digit account number when creating an online profile. Existing automatic-payment arrangements may also require review.

If you previously paid through a SouthWest Water portal:

  • Do not assume your old portal password works with the new system.
  • Confirm the account number printed on your latest statement.
  • Review any existing AutoPay settings.
  • Check your contact information so payment reminders and service notices reach you.

Set Up Automatic Bank Payments

Texas Water Utilities offers free automatic payments from checking or savings accounts.

  1. Sign in to My Account.
  2. Open the Payments section.
  3. Select the available AutoPay or automatic bank-draft option.
  4. Enter your banking details in the secure portal.
  5. Review and accept the authorization.
  6. Confirm that AutoPay is active before the next bill is due.

The amount owed is automatically withdrawn on the due date once the bank-draft arrangement is active.

Already had AutoPay? If your account was migrated from an earlier payment system, check your current enrollment status rather than assuming the previous arrangement transferred without changes.

Other Ways to Pay Your Texas Water Utilities Bill

The company accepts payments online, by automated telephone, at participating retail locations and by mail.

Payment MethodHow to PayImportant Detail
Online account My Account Pay bills and manage payment methods.
Bank AutoPay Enroll through My Account Free automatic checking/savings draft.
Card / digital wallet My Account payment menu Review the displayed transaction fee.
Automated telephone 866-654-7992, option 2 Available 24/7 for automated payments.
Walmart Bill Pay Participating Walmart MoneyCenter or Customer Service Desk Request Walmart Bill Pay same-day processing.
Other retail locations Generate a payment barcode through My Account Use only a participating retailer shown in the portal.
Mail Texas Water Utilities payment center Include the bill stub and account number.

Pay by Phone

  1. Call 866-654-7992.
  2. Select Option 2.
  3. Follow the automated payment instructions.
  4. Enter your utility account number.
  5. Provide the payment information requested by the system.
  6. Record your confirmation number.

The automated payment system operates 24 hours a day and also provides account-balance and previous-payment information.

Pay With Cash at Walmart

Customers without online banking can make payments through participating Walmart locations.

  1. Bring your current utility bill, on paper or electronically, to Walmart’s MoneyCenter or Customer Service Desk.
  2. Tell the associate you want to pay your Texas Water Utilities bill.
  3. Provide the utility name and account number.
  4. Ask for Walmart Bill Pay (WMBP) same-day processing.
  5. Pay using an accepted cash or debit card method.
  6. Keep the receipt and confirmation number.

If your service is disconnected or at risk of disconnection, the company advises calling customer service before 3 PM with the payment confirmation to arrange a turn-on.

Mailing Address for Bill Payments

Texas Water Utilities
PO Box 36988
Hoover, AL 35236-6988

This is the payment mailing address listed on the utility’s current Billing & Payment and customer contact pages.

Write your 10-digit account number on the check or money order and include the payment stub.

Important 2026 address change: The company’s July 2026 customer transition announcement published a different Hoover, Alabama payment box. Because the official materials have shown more than one remittance address, verify the payment address printed on your latest bill before mailing. Do not reuse an old Monarch Utilities Houston address.

What to Do After a Disconnection Notice or Water Shutoff

If you have received a disconnection notice, the first priority is to confirm the amount owed and payment deadline.

If Water Is Still Running

  1. Find the scheduled disconnection date printed on the notice.
  2. Check the outstanding balance using My Account or call 866-654-7992.
  3. Pay through the official online portal or automated phone service.
  4. Save the confirmation number.
  5. Call customer service if the payment occurs within five business days of the scheduled disconnection.

If Water Has Already Been Disconnected

The utility says customers must pay the overdue balance and applicable reconnection fee before service is restored.

  1. Call 866-654-7992 for the total amount needed.
  2. Make the payment through an authorized method.
  3. Call customer service after paying to schedule reconnection.
  4. Provide the confirmation number and service address.
  5. Ask when the field-service team is expected.

The company states that reconnection is performed during regular business hours and that service is normally restored within 36 hours of the account returning to good standing.

The exact reconnection charge depends on the applicable utility tariff and account circumstances. Ask customer service to confirm the amount.

Don’t assume an online payment automatically restores water. Texas Water Utilities specifically requires customers to contact customer service after paying to schedule a reconnection.

Start, Stop or Transfer Monarch Water Service

If you are moving into or out of a Texas property previously billed by Monarch Utilities, use the current Texas Water Utilities service-request process.

Start Service at an Existing Connection

  1. Open Texas Water Utilities Billing & Payment.
  2. Go to the Start or Stop Services section.
  3. Select Start Services.
  4. Sign in or continue through the available guest application.
  5. Provide the service address and requested account information.
  6. Complete the application and electronic signature.
  7. Submit the request and watch for email confirmation or further instructions.

The company asks for two working days (48 hours) notice when scheduling starts, stops or service transfers.

If a property has never been connected to the utility system, contact the company before submitting a standard start-service request. New meter or infrastructure work may require a different process.

Transfer Service to Another Property

Use My Account to request a transfer within a qualifying Texas Water Utilities service area.

Have the old and new service addresses, planned moving date and account information ready. Confirm whether the new property is served by the same company and whether a final reading or deposit adjustment is required.

Stop Service When Moving Out

  1. Sign in to My Account.
  2. Open Service Requests.
  3. Select the stop-service option.
  4. Enter your requested final date and forwarding details.
  5. Submit the request.
  6. Confirm the final bill and account closure.

If you cannot access My Account, call customer service. Give at least two working days’ notice when possible.

Texas property-closing tip: Sellers and buyers should coordinate the final meter reading and new account activation. A property closing does not automatically cancel the previous customer’s water account.

The utility also provides a Property Closing Information Request form for customers who need documentation during a sale.

Monarch Water Utilities Rates and Charges in 2026

Texas Water Utilities serves different communities and systems. Rates are regulated by the Public Utility Commission of Texas and may depend on the applicable tariff, customer classification, meter size and consumption.

There is no single accurate statewide monthly water rate for every former Monarch customer.

Charges You May See on Your Bill

ChargeMeaning
Water base rate Fixed charge for maintaining the water system and service availability.
Water usage Charges based on metered consumption, commonly expressed in thousands of gallons.
Wastewater base rate Fixed sewer or wastewater service charge, where applicable.
Wastewater usage Variable wastewater charges calculated under the applicable tariff.
System Improvement Charge Approved charge for qualifying infrastructure investments, where applicable.
Other tariff charges Fees or adjustments specifically allowed under the applicable regulatory schedule.

Important 2026 System Improvement Charge Update

Texas Water Utilities announced that interim System Improvement Charges were approved on April 24, 2026, with an effective date for bills issued on or after May 8, 2026.

The amount varies depending on service type and meter size. The company states that if final approved charges are lower than the interim amounts, customers will receive the applicable difference as a refund.

Review the official current water and wastewater tariffs and select the schedule covering your account.

How to Verify Your Own Water Rate

  1. Find the service address and account number on your current bill.
  2. Check whether you are billed for water, wastewater or both.
  3. Open the official Tariffs & Regulatory Notices page.
  4. Find the tariff for your utility system.
  5. Check the effective date, meter-size charge and consumption rate.
  6. Compare the approved tariff with the line items on your bill.

If you are unsure which tariff applies to a former Monarch account, call 866-654-7992 and provide the service address.

High Water Bill, Meter Readings and Leak Adjustment Help

If your bill suddenly increases, compare water consumption rather than looking only at the total balance. A price adjustment and an increase in actual water use are different problems.

Check the Water Usage History

Your bill provides previous and current meter readings and water usage expressed in thousands of gallons. The company’s bill explanation identifies one kgal as 1,000 gallons.

For example, if your previous monthly usage was 4 kgal and your current usage is 11 kgal, that is an increase of approximately 7,000 gallons.

Check for:

  • Toilets that continue running after flushing.
  • Outdoor hose or irrigation leaks.
  • Sprinkler valves that remain open.
  • Water softener or appliance problems.
  • Underground leaks between the meter and home.
  • Unusual seasonal irrigation or pool-filling activity.

Local Texas tip: Summer landscape watering can cause major usage changes, particularly in properties with automatic irrigation. Check the controller schedule and look for unusually wet ground before assuming a water meter is faulty.

Request a Leak Adjustment

Texas Water Utilities offers a possible courtesy credit for certain accidental leaks outside the customer’s reasonable control.

  1. Find and repair the leak promptly.
  2. Record the date it was discovered and repaired.
  3. Keep plumber invoices, materials receipts and other repair evidence.
  4. Open the official Service Forms page.
  5. Download the Leak Adjustment Request form.
  6. Complete the form and upload it using the secure submission tool.
  7. Watch for a decision from Customer Service.

Submitting a request does not guarantee an adjustment. The utility reviews eligibility under its applicable rules.

How to Dispute a Billing Error

Contact customer service and explain which charge or meter reading you believe is incorrect.

The company’s guidance says a reasonable payment based on the previous 12-month average usage may be required while the disputed amount is reviewed.

Keep copies of your statements, payment confirmations and any correspondence.

Water Assist: Help With Monthly Water and Sewer Bills

Texas Water Utilities offers a low-income assistance program called Water Assist.

Eligible customers can receive a $20 monthly credit for water service and/or a $20 monthly credit for wastewater service during enrollment.

The amount available depends on the services billed to the qualifying account. Customers must remain current on their bills while enrolled.

Published Monthly Income Limits

Household SizeMaximum Gross Monthly Income
1$1,956
2$2,644
3$3,331
4$4,019
5$4,706
6$5,394
7$6,081
8$6,768

These are the eligibility figures currently published on the company’s program page. Check the official application for updated income thresholds before applying.

How to Apply for Water Assist

  1. Visit Texas Water Utilities Water Assist.
  2. Review the income limits for your household size.
  3. Enter the account holder’s name and 10-digit account number.
  4. Provide the service address and contact information.
  5. Select water, wastewater or both, as applicable.
  6. Answer the age-related eligibility question and accept the required acknowledgment.
  7. Submit the application and respond if the utility requests supporting documentation.
Important: Water Assist is a bill-reducing credit for qualifying customers, not an automatic cancellation of past-due charges. If your account is already overdue, contact customer service separately about the balance and disconnection risk.

Monarch Utilities Customer Service, Emergency Phone and Mailing Address

For former Monarch customers managed by Texas Water Utilities, the central customer-service team handles account inquiries, payment questions and utility service concerns.

What You NeedOfficial Contact
Billing and customer service 866-654-7992
Mon–Fri, 8 AM–4:30 PM CT
Automated phone payment 866-654-7992
Select option 2
Water or sewer emergency 866-654-7992
24 hours, every day
Customer portal account.mywater.us
Secure customer inquiry Official Contact Us form
Payment mailing address PO Box 36988
Hoover, AL 35236-6988

How to Send a Customer Service Request Online

  1. Open the Texas Water Utilities Contact Us page.
  2. Choose the secure customer inquiry form.
  3. Enter your name, email address and phone number.
  4. Provide your 10-digit account number and service address.
  5. Explain the billing or service problem clearly.
  6. Complete the verification and submit the request.

Use the telephone number instead for urgent water emergencies. An online form is not a substitute for emergency dispatch.

Check Water Outages or Boil-Water Notices

Texas Water Utilities operates multiple water systems, so one neighborhood’s water outage or advisory does not necessarily apply to every former Monarch customer.

Use the official Texas Service Alerts page to check current notices, scheduled maintenance and local boil-water advisories.

Compare the alert’s community, ZIP code, water system and affected addresses with your own property. Follow the specific directions and end dates provided in the notice.

Avoid Old Monarch Payment Links and Utility Scams

Because the Monarch Utilities name still appears in older paperwork and third-party directories, customers may encounter outdated payment links.

Before paying:

  • Start from the official Texas Water Utilities website.
  • Check that the account information matches your current bill.
  • Use the portal linked by the utility, not an unfamiliar advertising result.
  • Do not provide your password or banking information to someone calling unexpectedly.
  • Verify suspicious disconnection threats by calling 866-654-7992 directly.

Texas Water Utilities explicitly states that it is not affiliated with third-party bill payment companies such as Doxo and warns that payments through such services may be delayed.

If a caller claims they will disconnect your water unless you pay immediately through an unfamiliar link, end the call and contact the utility using the official number.

Frequently Asked Questions About Monarch Water Utilities

Is Monarch Utilities now Texas Water Utilities?

Monarch Utilities I, L.P. is a legacy name associated with SouthWest Water’s Texas operations. The current customer-facing billing and service resources are available through Texas Water Utilities.

Where do I log in to pay my Monarch water bill?

Use account.mywater.us for Texas Water Utilities accounts. Register using the 10-digit account number and five-digit service-address ZIP code from your current bill.

What is the Monarch Utilities customer service number?

Call 866-654-7992. Customer service agents are available Monday through Friday, 8 AM–4:30 PM Central Time.

What is the 24-hour water emergency phone number?

Call 866-654-7992. The utility uses the same number for around-the-clock water and wastewater emergencies.

Can I pay without registering for My Account?

Yes. Texas Water Utilities’ official billing instructions provide a one-time payment option without requiring a registered profile.

Can I set up automatic bank payments?

Yes. Registered customers can enroll in free automatic checking or savings account drafts through My Account.

Where should I mail my water payment?

The current billing page lists Texas Water Utilities, PO Box 36988, Hoover, AL 35236-6988. Check your latest payment stub because the company published multiple address updates during 2026.

What happens if my water is disconnected?

Pay the overdue balance and applicable reconnection fee, then contact customer service to schedule restoration. The utility says reconnection is performed during normal business hours and typically within 36 hours after an account returns to good standing.

Does Texas Water Utilities offer assistance for low-income customers?

Yes. Its Water Assist program provides qualifying customers a $20 monthly water credit and/or a $20 monthly wastewater credit, subject to eligibility and continued enrollment requirements.

Why did my Monarch water bill increase in 2026?

Possible reasons include higher metered consumption, a plumbing leak, approved rate changes or an applicable System Improvement Charge. Check your usage and tariff before assuming the meter or bill is incorrect.

Official Monarch / Texas Water Utilities Resources

Independent customer information guide

WaterUtilities.org is an independent informational website and is not affiliated with Monarch Utilities I, L.P., Texas Water Utilities, SouthWest Water Company or Nexus Water Group. Payments, service requests and emergency reports must be completed through the official utility. Rates, fees, payment addresses and procedures may change.

Official Texas Water Utilities sources reviewed: October 24, 2026.

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