Miami-Dade Water and Sewer Services, Programs, Customer Phone and Official Account Help
If you need the Miami-Dade Water and Sewer Department phone number, bill payment help, start service, stop service, payment plan support, leak adjustment details, office address, customer service hours or official programs, this guide gives you the correct route in one clean place.
Miami-Dade Water and Sewer Department provides water and wastewater services directly to more than 400,000 retail customers and indirectly through wholesale municipal utilities. Its services include water supply, treatment, distribution, wastewater collection, wastewater treatment, water conservation and customer billing support.
☎️ Fast contact routes
Customer Service: Call 305-665-7477 for account, billing, start service, stop service and adjustment support.
Pay by phone with checking/savings: Call 1-800-565-1800.
Pay by phone with card: Call 1-800-510-0880. Miami-Dade lists a convenience fee for card payments.
Miami-Dade Water and Sewer Department Quick Facts
Miami-Dade Water and Sewer Department provides drinking water and wastewater services, promotes water conservation and works to protect public health and the environment. Its main customer office is listed at 3071 SW 38th Ave, Miami, FL 33146.
The official customer service phone number for common water and sewer account matters is 305-665-7477. In-person customer service locations are generally listed Monday through Friday from 8 a.m. to 4:30 p.m..
What This Miami-Dade Water Services Guide Covers
Miami-Dade Water Department Services and Programs Offered
Miami-Dade Water and Sewer Department supports a wide customer base with water supply, water treatment, water distribution, wastewater collection, wastewater treatment, water reclamation, billing services, payment options, conservation resources and customer support programs.
For everyday customers, the most useful programs are account management, online bill payment, start service, stop service, transfer service, water bill payment plan calculator, leak adjustment request, meter reading education, water conservation resources and WASD Cares-style support for customers in need.
| Program / service | What it helps with | Best official route |
|---|---|---|
| Account services | Water/sewer account, billing, meter reading and payment services. | Your Water and Sewer Account |
| Start / stop / transfer | Move-in, move-out, new account and service changes. | Start Water Service / related services |
| Bill payment | Online, phone, mail and in-person payments. | Pay Water Bill pages |
| Bill adjustments | Hidden leaks, pool refill credit, vandalism, over/under reading, incorrect meter reading. | Water Bill Adjustments and Credits |
| Payment plan calculator | Calculating payment plans for unpaid bills. | Water Bill Payment Plan Calculator |
| Conservation | Water-saving education, meter reading and leak detection. | Your Water / conservation resources |
Miami-Dade Water and Sewer Department Phone Numbers
The most important customer number is 305-665-7477. Use it for billing, start service, account help, adjustment questions, payment support and general customer service.
For phone bill payment, Miami-Dade lists separate automated payment numbers: 1-800-565-1800 for checking or savings account payments and 1-800-510-0880 for major credit card payments.
| Need | Phone | Use it for |
|---|---|---|
| Customer Service | 305-665-7477 | Account, billing, start service, stop service, adjustment and general support. |
| Pay by checking/savings | 1-800-565-1800 | Automated water bill payment with checking or savings account. |
| Pay by credit card | 1-800-510-0880 | Automated card payment with listed convenience fee. |
| 311 Contact Center | 311 / 305-468-5900 | General County routing when unsure where to call. |
Miami-Dade Water and Sewer Account Services
The official account page helps customers manage water and sewer billing, understand water rates, read the water meter, use payment plan resources and access account-related services.
Open the official account page
Use Your Water and Sewer Account to reach Miami-Dade account tools and billing services.
Use account services by issue
Choose bill payment, rates, payment plans, meter reading, start service, stop service or related service pages based on your need.
Protect account information
Miami-Dade notes that account information may be public record, with exemptions for qualifying individuals under Florida law.
How to Pay a Miami-Dade Water Bill
Miami-Dade customers can pay online, by phone, by mail, at County offices, kiosks and listed private pay stations. For the cleanest route, start from the official account or payment page before entering your account details.
Pay online from the official page
Open Your Water and Sewer Account and use the official payment route.
Pay by phone if preferred
Call 1-800-565-1800 for checking/savings payment or 1-800-510-0880 for major credit card payment.
Pay by mail if time is not urgent
Mail check, cashier’s check or money order to MIAMI-DADE WATER & SEWER DEPT, PO BOX 26055, MIAMI, FL 33102-6055.
Keep proof of payment
Save confirmation number, date, amount, payment method and account number until the payment posts.
Start, Stop or Transfer Miami-Dade Water Service
Customers moving into or out of a Miami-Dade Water and Sewer service address can use official start, stop and transfer service routes. The start service page lists deposit and service charge information and links customers to online options.
Use the official Start Water Service page
Open Start Water Service for service setup instructions.
Prepare deposit and service charge
Miami-Dade lists a $50 deposit each to start water and sewer service, plus a $45 non-refundable service charge, included in the initial billing statement.
Prepare required account details
Individuals and businesses should keep identification, service address, mailing address, business tax details where applicable and contact information ready.
Use stop or transfer services if moving
Use the related official Stop Water Service or Transfer Water Service pages when you are moving out or changing service location.
Miami-Dade Water Bill Adjustments, Credits and High Bill Help
Miami-Dade lists bill adjustment and credit options for certain cases, including concealed underground leaks, a once-a-year pool refill credit, vandalism resulting in a high bill, over/under-estimated readings and incorrect meter readings.
For concealed or underground leak adjustment, Miami-Dade lists requirements such as completing the adjustment form, attaching repair receipts or letters, attaching before/after photos, meeting repair timing requirements and submitting payment of a portion of current charges or verifying the account is paid in full.
Check whether your issue qualifies
Open Water Bill Adjustments and Credits to review official eligibility.
Repair the issue and document it
Save repair invoices, plumber letters, photos before/after repairs and any department notice about a possible leak.
Submit required documentation
Email or submit documents through the official route listed by Miami-Dade for credit requests.
Ask about administrative hearing if needed
Call 305-665-7477 during listed Customer Care hours if you need hearing information.
Miami-Dade Water Bill Payment Plan Calculator and WASD Cares
Miami-Dade promotes a Water Bill Payment Plan Calculator for customers who owe unpaid bills and need to understand payment plan timing. The main Water and Sewer page also references support efforts such as giving the gift of water to help customers in need.
Payment Plan Calculator
Estimate payment plan amounts and end date based on billing type and balance due.
For unpaid billsWASD Cares / support
Customer support and contribution programs may help households in need.
Check official pageOpen account services
Use the official account page to find payment plan and billing resources.
Estimate plan before calling
Use the calculator to understand possible payments and repayment length before discussing account options.
Call Customer Service for account-specific help
Call 305-665-7477 with account number and balance details ready.
Read Your Miami-Dade Water Meter and Find Possible Leaks
The official account page encourages customers to learn how to read their water meter because meter readings can show whether water is being wasted due to leaks. This is especially important before requesting a high bill adjustment.
Compare current and past usage
Look at the latest bill, meter read dates and past average usage before assuming the bill is wrong.
Check common household leaks
Check toilets, irrigation zones, hose bibs, water softener, pool fill, underground lines and plumbing behind walls.
Document repairs fast
If you find a concealed leak, keep repair invoices, photos and dates because Miami-Dade adjustment rules require supporting documentation.
Miami-Dade Water and Sewer Offices, Address and Hours
Miami-Dade lists multiple customer service locations for water and sewer matters. The main Douglas office is 3071 SW 38th Ave., Miami, FL 33146. Customer service locations are generally listed Monday through Friday, 8 a.m. to 4:30 p.m..
| Office | Address | Listed hours |
|---|---|---|
| Water and Sewer / Douglas Office | 3071 SW 38th Ave., Miami, FL 33146 | Monday-Friday, 8 a.m.-4:30 p.m. |
| South Dade Government Center | 10710 SW 211th St., Cutler Bay, Suite 105 | Monday-Friday, 8 a.m.-4:30 p.m. |
| NW Dade Opa-locka Office | 780 Fisherman Street, Opa-locka, Room 130 | Monday-Friday, 8 a.m.-4:30 p.m. |
| Dr. Martin Luther King Office Plaza | 2525 NW 62nd St., Miami, Suite 1200B | Monday-Friday, 8 a.m.-4:30 p.m. |
Checklist Before Calling Miami-Dade Water Customer Service
Before calling Customer Service, prepare the details that help staff verify your account and route your issue quickly.
| Check | What to prepare |
|---|---|
| Account number | Water and sewer account number from the bill or online account. |
| Service address | Full Miami-Dade service address and mailing address if different. |
| Issue type | Payment, start service, stop service, transfer, high bill, leak, adjustment or payment plan. |
| Payment proof | Confirmation number, date paid, amount and payment method if payment is the issue. |
| Leak documents | Repair receipts, plumber letter, before/after photos and date repairs were completed. |
| Move details | Move-in or move-out date, forwarding address, tenant/owner details and business tax info if applicable. |
Miami-Dade Water and Sewer Department Main Office Map
The main Miami-Dade Water and Sewer Department Douglas office is listed at 3071 SW 38th Ave., Miami, FL 33146. Call Customer Service first if your issue may be handled online or by phone.
Miami-Dade Water and Sewer Department Douglas Office
Use this map for the main customer service office location reference.
Official Miami-Dade Water and Sewer Links
Use these official Miami-Dade resources for programs, services, account support, bill payment, start service, adjustments, contact details and customer service.
Water and Sewer Department
Main department page for programs, services, water quality, conservation and account links.
Open Water DepartmentContact Water and Sewer
Official customer service locations, phones, emails and department contact information.
Open Contact PageYour Account
Account, bill, rates, payment plans, meter reading and water/sewer account support.
Open Account ServicesStart Water Service
Official route for starting service, deposits, service charge and location support.
Start Water ServicePay by Phone / Mail / In Person
Official phone payment, mail payment, in-person and pay station details.
Open Payment OptionsAdjustments and Credits
High bill, hidden leak, pool refill, vandalism and meter reading credit guidance.
Open Adjustments311 Contact Center
County contact center for general routing and service help.
Open 311 HelpPay Checking/Savings
Automated phone payment using checking or savings account.
Call 1-800-565-1800Pay Credit Card
Automated card payment route; confirm current convenience fee before paying.
Call 1-800-510-0880Miami-Dade Water Department Services, Programs and Phone FAQs
What is the Miami-Dade Water and Sewer Department phone number?
The main Customer Service phone number is 305-665-7477.
Where is the Miami-Dade Water and Sewer Department main office?
The Douglas office is listed at 3071 SW 38th Ave, Miami, FL 33146.
What are Miami-Dade Water and Sewer office hours?
Customer service office locations are generally listed Monday through Friday, 8 a.m. to 4:30 p.m.
How do I pay a Miami-Dade water bill by phone?
Call 1-800-565-1800 to pay using checking or savings. Call 1-800-510-0880 to pay with a major credit card where available.
How do I start Miami-Dade water service?
Use the official Start Water Service page or call Customer Service at 305-665-7477.
What deposit does Miami-Dade list for starting water and sewer service?
The official Start Water Service page lists a $50 deposit each to start water and sewer service, plus a $45 non-refundable service charge, included in the initial billing statement.
Does Miami-Dade offer water bill adjustments?
Yes. Miami-Dade lists adjustment and credit options for qualifying issues such as concealed underground leaks, pool refill credits, vandalism, over/under-estimated readings and incorrect meter readings.
Who do I call for a Miami-Dade water bill hearing or adjustment question?
Call the Customer Care Center at 305-665-7477. The adjustment page lists Customer Care hours Monday through Friday, 8 a.m. to 7 p.m., excluding holidays, for administrative hearing requests.
Can I pay my Miami-Dade water bill in person?
Yes. Miami-Dade lists in-person payment options at County offices, kiosks and private pay stations. Check the official payment page for accepted payment types and posting time.
Where do I mail a Miami-Dade water bill payment?
Mail check, cashier’s check or money order to MIAMI-DADE WATER & SEWER DEPT, PO BOX 26055, MIAMI, FL 33102-6055.
Does Miami-Dade have a payment plan calculator?
Yes. Miami-Dade’s Water and Sewer account resources include a Water Bill Payment Plan Calculator for unpaid bill repayment planning.
Is this guide for Miami-Dade County or City of Miami Beach?
This guide is for Miami-Dade County Water and Sewer Department. City of Miami Beach, private systems and municipal utilities may have different billing and service rules.
Best Way to Use Miami-Dade Water and Sewer Services in 2026
For most Miami-Dade water and sewer customer needs, start with the official account page or call 305-665-7477. Use official pages for bill payment, account services, start/stop service, payment plans and adjustment requests.
For in-person service, the main Douglas office is 3071 SW 38th Ave, Miami, FL 33146. For phone bill payment, use 1-800-565-1800 for checking/savings or 1-800-510-0880 for credit card payments. Always confirm fees, hours and current program rules on official Miami-Dade pages before paying or submitting documents.
Editorial note: This guide is informational and helps Miami-Dade Water and Sewer customers find official services faster. Phone numbers, deposits, payment fees, office hours, adjustment rules, hearing deadlines and program details can change, so always confirm final details directly on official miamidade.gov pages before taking action.