Tide Water Utilities 2026: Bill Pay, Login & Phone

Delaware Water Utility • Customer Billing & Service Guide

Pay Your Tidewater Utilities Bill, Sign In to My H2O SmartPay & Get Customer Support

Need to pay your Tidewater Utilities water bill, manage your account or report a service problem? Tidewater Utilities, Inc. supplies drinking water to customers across parts of New Castle, Kent and Sussex Counties in Delaware.

Customers can use the official My H2O SmartPay portal for electronic billing and payments, pay by automated telephone, or contact Tidewater about new service, water quality and account issues.

Water Bill Login & Pay Call Customer Service

Tidewater Customer Service

877-720-9272
Monday–Friday, 9 AM–5 PM

Automated Phone Payments

877-386-6729
24 hours a day, every day

Water Service Emergency

877-720-9272
Emergency assistance available 24/7

Delaware Office

1100 South Little Creek Road
Dover, DE 19901

Important distinction: Tidewater Utilities, Inc. is a Delaware water company within the Middlesex Water family. It is not the City of Dover Water Department or every water system with “Tidewater” in its name. Confirm that Tidewater Utilities appears on your statement before using its payment portal.

How to Pay Your Tidewater Utilities Water Bill Online

Tidewater directs customers to My H2O SmartPay, a secure payment and electronic billing platform used by the Middlesex Water Company family.

You can manage an existing registered account or follow the portal’s available payment options for a one-time transaction.

Open the official payment portal.
Visit My H2O SmartPay. You can also reach it through Tidewater’s official website.
Choose the correct billing option.
If you already have online access, sign in. Otherwise, follow the registration or one-time payment instructions presented on the portal.
Locate your account number.
Use the Tidewater account number printed on your latest water bill. Check that your service address matches.
Review your outstanding balance.
Confirm the amount due and any previous balance or payment adjustment before continuing.
Select an available payment method.
Follow the current portal instructions for electronic payment. Review any payment-processing charge before authorizing the transaction.
Save your confirmation.
Keep the transaction number and receipt. Verify the payment appears on your account, especially if the due date is approaching.

Facing a disconnection deadline? Do not assume that submitting a payment immediately prevents shutoff. Call Tidewater at 877-720-9272 to confirm payment receipt and the status of any scheduled service interruption.

Can You Pay Without Creating an Account?

The My H2O SmartPay service supports one-time and recurring payments. Available guest-payment and registration options are shown in the portal. If you cannot complete the transaction online, the automated phone service at 877-386-6729 is another official payment route.

Tidewater Utilities Login, E-Billing and Automatic Payments

Registered My H2O SmartPay customers can access account information, receive bills electronically, schedule payments and receive payment reminders.

How to Access Your Account

Go to My H2O SmartPay.
Choose the login option.
Enter the credentials associated with your registered account.
Use the portal’s password recovery process if you cannot sign in.
After accessing your account, review billing information, reminders and payment settings.

Why Register for E-Billing?

Access your account online any time.
Receive water bills electronically.
Make one-time or recurring payments.
Set reminders before payment deadlines.
Manage billing information from a computer or smartphone.
Reduce paper statements and mailing delays.

How to Set Up Recurring Payments

Log in to My H2O SmartPay.
Find the recurring or automatic payment option.
Select the Tidewater account to be paid.
Choose an available payment method.
Review the authorization terms and any charges.
Confirm the schedule and check when the first automatic payment will occur.

AutoPay tip: If you recently enrolled, check whether the current balance must still be paid manually. Automatic payment enrollment should not be treated as confirmation that an already-issued bill has been paid.

Forgot Your Login Details?

Use the password recovery instructions provided on the secure portal. If your email address or account number cannot be verified, contact Tidewater customer service instead of creating duplicate accounts.

Other Ways to Pay a Tidewater Water Bill

Tidewater and Middlesex Water provide several payment options for customers who do not want to pay through the online portal.

Payment Method	How to Pay	Important Detail
Online payment	My H2O SmartPay	Electronic billing, one-time or recurring payment options.
Automated phone payment	877-386-6729	Available 24/7 for card or electronic check payments.
Mail	PO Box 826538, Philadelphia, PA 19182-6538	Mail the payment with your account information.
CheckFreePay	Participating walk-in payment centers	Find a nearby location before visiting.
Western Union	Participating payment locations	Confirm that the location handles utility bill payments.
Recurring payments	My H2O SmartPay	Schedule payments through the registered account.

Pay Your Tidewater Water Bill by Phone

Call 877-386-6729.
Follow the automated payment instructions.
Enter the required Tidewater account information.
Choose the available card or electronic check payment option.
Review the payment total and any applicable convenience charge.
Save your confirmation number.

The automated payment service is available 24 hours a day, 365 days a year. This number is for payments; use 877-720-9272 for customer service and water emergencies.

Mailing Address for Water Bill Payments

Tidewater Utilities, Inc.
PO Box 826538
Philadelphia, PA 19182-6538

Include the payment coupon if provided and write your account number on the check or money order. Allow sufficient mailing and processing time.

Do not confuse payment and office addresses. The Philadelphia PO Box is the official payment remittance address. Tidewater’s Delaware office is in Dover, while its customer-service correspondence address is in Iselin, New Jersey.

Find a Walk-In Payment Center

Open CheckFreePay.
Choose the payment location search.
Enter your Delaware ZIP code.
Confirm that the location accepts payments for your utility.
Bring your bill and the accepted payment method.
Keep the payment receipt.

Payment location availability may differ between Dover, Milford, Georgetown, Millsboro, Ocean View and other communities.

Tidewater Utilities Monthly Billing: What Changed?

Tidewater has moved from quarterly billing to monthly billing. The company’s current customer page identifies monthly billing as an active change and provides a frequently asked questions resource.

This affects how customers should compare bills, set payment reminders and monitor household water consumption.

Monthly Versus Quarterly Billing

Billing Feature	What Customers Should Know
Billing frequency	Statements are now issued monthly rather than once every three months.
Payment planning	Budget for more frequent water bill due dates.
Consumption comparison	Compare water use against similar monthly periods, not an older three-month bill.
Fixed service charges	Review how the applicable tariff allocates charges to each monthly billing period.
Account alerts	Use electronic billing and payment reminders to reduce missed due dates.

How to compare an old quarterly bill with a new monthly bill: Do not compare the two totals directly. Divide the older bill’s consumption by the number of billing days, then compare gallons per day with the newer statement. This gives a more meaningful picture of your household’s water use.

Visit Tidewater’s official company page for its monthly billing FAQ and current customer notices.

Tidewater Utilities Water Rates and Charges in 2026

Tidewater is a regulated Delaware water utility. Its rates and service charges are established through tariffs filed with the Delaware Public Service Commission.

The company publishes a water-service tariff effective July 1, 2026. The tariff contains the applicable rules, rates, meter-related charges and other conditions of service.

What Can Appear on a Tidewater Bill?

Charge	What It Covers
Minimum or fixed service charge	A recurring charge associated with the meter or availability of water service.
Water consumption	Water recorded during the billing period at the applicable tariff rate.
Infrastructure-related charges	Applicable approved surcharges or tariff components.
Previous balance	Unpaid charges carried from earlier billing periods.
Adjustments or credits	Approved account corrections, credits or other billing entries.
Other service charges	Charges permitted under the applicable approved tariff.

Why Isn’t There One Flat Tidewater Water Rate?

Tidewater operates multiple service areas, and charges can depend on the customer’s service classification, meter size, applicable tariff provisions and usage.

For example, customers in Ocean View or areas associated with Southern Shores should not automatically assume that their charges match every other Tidewater residential account.

The most accurate way to review your bill is to use the current tariff for your specific water system and compare it with the line items on your statement.

View Tidewater’s official July 2026 tariff and rate information

Delaware Public Service Commission — regulated water utilities

2026 rate update: Tidewater’s company page also includes notices concerning an application for an increase in base water rates. A proposed rate increase is not necessarily the same as an approved effective rate. Verify the tariff and billing date before relying on any rate figure.

Start, Stop or Transfer Tidewater Water Service

If you’re buying, renting or leaving a property supplied by Tidewater, contact the utility before the move. The company asks customers to provide at least 48 hours’ notice when establishing or terminating service.

Start Water Service at a New Delaware Address

Open the official Start, Stop or Transfer Service instructions.
Call Tidewater at 877-720-9272.
Provide the exact service address.
Give the name or names to appear on the account.
Provide your telephone number and email address.
Confirm the property closing date or the date you want service to begin.
Give your mailing address if it differs from the service address.
Ask whether a deposit, application or additional connection requirements apply.

Tidewater can arrange a meter reading to establish the new account. Contacting the company before closing or moving helps prevent delays.

Stop Service When Moving Out

Call 877-720-9272 at least 48 hours before your planned move.
Provide your Tidewater account number.
Confirm the service address.
Give the date you want service discontinued.
Provide a forwarding mailing address for the final bill.
Leave a current daytime telephone number.
Ask for confirmation that the final meter reading has been scheduled.

Moving between Tidewater-served properties? Tell the customer service representative that you need to close one account and open another. The company can coordinate the two service requests, but they should be confirmed separately.

Buying a Newly Constructed Home?

Before closing on a new property, verify that Tidewater has an active water-service connection. A newly developed subdivision may require service-connection work, approval or additional setup.

Contact Tidewater and ask whether the property is already within its approved service territory and whether the water connection is ready for activation.

Common Tidewater Water Bill and Service Problems

Payment Completed but Balance Still Appears

Check your confirmation number and payment date. If the payment was made through a third-party service or close to the due date, confirm whether Tidewater has received it.

Call 877-720-9272 with your account number, transaction amount and payment confirmation before making another payment.

Water Bill Is Higher Than Normal

First determine whether the increase comes from actual water usage, the new billing frequency, fixed charges or an approved tariff adjustment.

Compare the number of billing days.
Check your current and previous meter readings.
Review gallons used per day.
Inspect toilets, outdoor faucets, irrigation equipment and visible plumbing.
Look for wet ground or leaks around the property.
Contact Tidewater if the usage remains unexplained.

How to Check for a Running Toilet

Put a few drops of food coloring into the toilet tank. Wait without flushing. If colored water enters the bowl, water is leaking through the toilet mechanism and may be increasing your bill.

Fix the problem promptly and keep repair receipts if you intend to request a billing review.

Water Main Break or Sudden Loss of Service

Call Tidewater’s 24-hour water emergency number:

877-720-9272

Provide your service address, nearest intersection, description of the problem and whether neighboring properties are affected.

A widespread pressure loss, flooding roadway or broken water main should be reported promptly. Do not operate company-owned valves or enter flooded electrical areas.

Boil Water Advisory

If Tidewater issues a boil water advisory, follow the company’s specific instructions. An advisory may affect one development, neighborhood or water system rather than every Tidewater customer in Delaware.

Check the official Tidewater service alerts before assuming that an advisory has ended.

Seasonal Change in Drinking Water Disinfectant

Tidewater and Southern Shores explain that certain systems switch from chlorine to chloramine during parts of the summer, roughly from mid-April through September, depending on demand.

Communities associated with the company’s 2026 chloramination notices include areas around Ocean View, Bear Trap Dunes and Sea Colony.

If you maintain a fish aquarium or use home dialysis equipment, follow the applicable treatment and equipment instructions for chloraminated water. Contact Tidewater if you need to confirm the disinfectant used in your specific neighborhood.

Delaware coastal community tip: Seasonal occupancy changes can affect water consumption patterns. If you own a vacation home near Bethany Beach or Ocean View, check for leaks and unexpected water use during periods when the property is vacant.

Water Quality Reports and Service Alerts

Tidewater supplies annual drinking-water quality information for its systems. Customers can use these reports to review water sources, detected contaminants and compliance information.

To find the appropriate report:

Visit Tidewater Utilities.
Select the Water Quality Report resource.
Identify the report associated with your water system or service area.
Review the reported testing results and any relevant notices.
Contact the utility if you cannot identify the report for your address.

Sign Up for DirectAlert

Middlesex Water offers DirectAlert, a notification service for important customer information.

Open the official DirectAlert registration and follow the instructions to enroll in available alerts.

Keep your contact information current so utility notices are more likely to reach you.

Tidewater Utilities Phone Number, Office and Mailing Address

Tidewater Utilities, Inc.
1100 South Little Creek Road
Dover, DE 19901

Customer service: 877-720-9272
Automated bill payment: 877-386-6729
Water emergency: 877-720-9272, available 24/7
Office hours: Monday–Friday, 9 AM–5 PM

Get directions to Tidewater’s Dover office

Customer Service Correspondence Address

Middlesex Water Company
485 C Route 1 South, Suite 400
Iselin, NJ 08830
Attn: Tidewater Utilities, Inc.

Include your account number or service address in correspondence to avoid delays.

For bill payments by mail: Use PO Box 826538, Philadelphia, PA 19182-6538, rather than the Dover or Iselin office address.

Delaware Water Utility Complaints and Payment Assistance

Tidewater Utilities is regulated by the Delaware Public Service Commission. If you cannot resolve a billing or service issue through Tidewater, the state’s utility consumer resources explain additional options.

Before Filing a Complaint

Contact Tidewater customer service first.
Record the date of your call and any response received.
Keep copies of statements, payment receipts and relevant notices.
Explain the specific charge, meter issue or service concern in writing if needed.
Use the Delaware utility consumer guidance if the issue remains unresolved.

Delaware Division of the Public Advocate — Water Consumer Information

Having Trouble Paying Your Bill?

Contact Tidewater as early as possible and ask whether an arrangement is available for your account. Delaware’s Division of the Public Advocate also recommends Delaware 211 and community assistance organizations as possible sources of support.

For referrals, dial 211 or visit Delaware 211.

Disconnection protection: Delaware has consumer protection rules addressing utility service termination, including circumstances involving serious health concerns. Contact the utility promptly and review the state’s official consumer guidance if a disconnection notice has been issued.

Frequently Asked Questions About Tidewater Utilities

What is the official Tidewater Utilities payment website?

Tidewater links customers to My H2O SmartPay at secure8.i-doxs.net/Middlesex/ for electronic billing and payments.

What is Tidewater Utilities’ customer service number?

Call 877-720-9272 during office hours, Monday through Friday, 9 AM–5 PM.

Can I pay my Tidewater bill by phone?

Yes. The automated payment number is 877-386-6729 and is available 24 hours a day for supported card or electronic check payments.

Does Tidewater have an online account login?

Yes. My H2O SmartPay provides online access for billing, electronic payments and recurring payment settings.

Can I use automatic payments?

Yes. Tidewater’s My H2O SmartPay system supports recurring payments. Log in and follow the available automatic payment enrollment options.

Where do I mail my Tidewater water bill?

Send bill payments to PO Box 826538, Philadelphia, PA 19182-6538. Include the correct account information.

What number do I call for a water emergency?

Call 877-720-9272. Tidewater lists 24-hour emergency assistance, every day of the year.

Does Tidewater bill monthly?

Yes. Tidewater has moved from quarterly to monthly billing. Check the monthly billing FAQ on its official website for details affecting your account.

How early should I request new water service?

The company asks Delaware customers to contact it at least 48 hours before moving or closing on a property.

Does Tidewater serve Sussex County?

Yes. Tidewater serves parts of Sussex, Kent and New Castle Counties in Delaware. Service availability depends on the specific property and authorized utility territory.

Where can I find Tidewater’s 2026 water rates?

The official Tidewater company page links to the tariff effective July 1, 2026. The applicable charge depends on service classification and tariff conditions.

How can I report a billing dispute?

Contact Tidewater at 877-720-9272 first. If the concern remains unresolved, consult the Delaware Public Service Commission or Division of the Public Advocate for consumer guidance.

Official Tidewater Utilities Resources

Independent information notice: WaterUtilities.org is not affiliated with Tidewater Utilities, Inc., Middlesex Water Company or the Delaware Public Service Commission. Payments, service activation, account changes and emergency reports must be handled through official utility channels.

Official company and Delaware regulatory information reviewed October 24, 2026. Payment fees, tariff rates, service policies and billing procedures can change. Confirm current information with Tidewater before acting.