Trenton Water Works Fast Desk: Pay, Log In, Call, Start Service or Report a Problem
Use this guide like a utility counter. Pick the task, use the official TWW route, prepare the right account details, and avoid payment, shutoff, service, leak, or lead-line mistakes.
Quick Answer Board
| Need | Official route | Have ready | Critical detail |
|---|---|---|---|
| Pay without registering | InvoiceCloud Pay Now | Account number, service address, payment method, amount due. | InvoiceCloud says One Time Pay needs no registration. |
| Login / register | Use the Sign In or Register links on the InvoiceCloud portal. | Email address, password, water account details. | Registered users can use extended payment features. |
| Pay by phone | 855-667-0982 | Account number, card/e-check details, amount. | InvoiceCloud lists this as the 24-hour payment line. |
| Billing/account help | 1-866-TWW-BLUE | Bill, account number, notice, payment proof, service address. | Customer Care hours: Monday-Friday, 9:00 AM-4:00 PM. |
| Water leak / no water / main break | 609-989-3222 | Exact location, cross street, issue type, time started. | TWW lists this for leaks, water-service problems and after-hours emergencies. |
| Sewer backup | 609-989-3081 daytime; 609-989-4000 after hours | Property address, backup location, fixture affected, time started. | Private sewer-line blockage is property-owner responsibility. |
| New water service / renewal | 609-989-3824 | Application, property/service location, plumber/contractor info. | Business hours listed: Monday-Friday, 8:30 AM-4:30 PM. |
| Meter repair / replacement | 609-989-3225 or 609-989-3226 | Meter location, access details, account number, photos if useful. | Meter testing rights are listed under TWW consumer rights. |
Fast warning: do not pay through directory-style third-party bill sites when the official City/TWW payment route is available. Start from the City of Trenton Online Payments page or the official InvoiceCloud portal.
Official Offices, Phones, Hours and Service Area
Customer Care
Phone: 1-866-TWW-BLUE
Hours: Monday-Friday, 9:00 AM-4:00 PM. Closed weekends, state, federal and municipal holidays.
Mail payments
Trenton Water Works
P.O. Box 528
Trenton, NJ 08604
Use mail only when there is enough time before due date or shutoff deadline.
| Local area | How TWW billing works | User action |
|---|---|---|
| City of Trenton | TWW says the City bills water and sewer for properties in Trenton; charges are assessed against the property. | Unpaid charges can lead to termination and property lien risk. |
| Ewing Township | TWW provides water to parts of Ewing; township sewer billing may be separate. | Pay TWW only for water if your TWW bill confirms it. |
| Hamilton Township | TWW serves parts of Hamilton; lead-line work has included Hamilton neighborhoods. | Confirm whether TWW is your water provider and whether township sewer is separate. |
| Lawrence Township | TWW serves parts of Lawrence and 2026 lead-line phases include Lawrence work. | Check bill/account before paying or requesting lead service-line work. |
| Hopewell Township | TWW service application includes Hopewell as a municipality option. | Confirm provider and retail/wholesale billing route before paying. |
| Suburban townships generally | TWW says charges are assessed against the account customer; water can be terminated for non-payment, but charges follow the customer. | Keep final bill proof when moving. |
Pay Bill or Login: Exact Steps
Open the official portal
Use the City of Trenton Online Payments page or the InvoiceCloud “Pay or View Bills” portal for City of Trenton water/sewer utility payments.
Choose One Time Pay or Sign In
One Time Pay does not require registration. Sign In/Register if you want account access and extended portal features.
Check fee and cap before paying
InvoiceCloud lists a $4.50 flat fee for credit card and e-check payments. E-check AutoPay is listed at $0.95; credit-card AutoPay is subject to the $4.50 flat fee.
Save proof
Keep confirmation number, amount, date/time, account number, payment method and screenshot.
| Payment method | Official detail | Best for | Do not miss |
|---|---|---|---|
| Online One Time Pay | InvoiceCloud says no registration is required for One Time Pay. | Quick payment and confirmation. | Use the correct water account number and save the receipt. |
| Registered login | InvoiceCloud offers Sign In and Register on the City of Trenton payment portal. | Customers who want account features and repeat access. | Use “Forgotten Password?” rather than creating duplicate accounts. |
| Phone payment | 24-hour payment line: 855-667-0982. | Customers who prefer automated payment by phone. | Call Customer Care separately for disputes or shutoff questions. |
| Credit card | Visa, MasterCard and Discover are listed; credit-card cap is $500 maximum charge, not including service fees. | Smaller balances. | Large balances may need e-check or other routing. |
| E-check | E-check draws directly from a bank account; cap is $125,000 maximum charge, not including service fees. | Large balances or customers avoiding card limits. | Failed e-check or credit-card chargeback fee is listed at $35. |
| Trenton Water Works, P.O. Box 528, Trenton, NJ 08604. | Normal bills with time to post. | Not ideal near shutoff or late deadline. | |
| Portal support | InvoiceCloud “Need Help?” lists 609-989-3055. | Portal/payment-access questions. | For account questions, call Customer Care at 1-866-TWW-BLUE. |
Past-Due Bill, Shutoff Risk and Consumer Rights
Before shutoff
- Call Customer Care at 1-866-TWW-BLUE.
- Ask exact amount due today.
- Ask whether a deferred plan is available.
- Ask whether a dispute pauses termination.
Consumer-rights notes
- Written notice of termination must be given 10 days prior.
- Residential shutoff is limited to Monday-Thursday, 8 AM-4 PM, after proper notice.
- Residential shutoff is not allowed Friday, Saturday, Sunday, holidays or the day before a holiday.
- Medical emergency protections may apply.
High usage dispute
- Ask for meter test if you suspect meter issue.
- TWW consumer-rights page says meter testing is free once a year.
- Ask for diversion-of-service investigation if usage is unexplainably high.
- Keep meter photos, repair receipts and bill copies.
Do not wait: TWW announced resumption of service terminations for past-due accounts and directs struggling customers to call Customer Care during weekday hours.
Water Main Break, Leak, No Water or Sewer Backup
Water emergency
Use for water leaks, water-service problems, water main breaks and after-hours emergencies.
Sewer backup
Daytime: 609-989-3081
After hours: 609-989-4000
City crews assess whether the City sanitary sewer is restricted.
Report clearly
Give exact address, cross street, issue type, time started, visible flow/backup, nearby hydrant or street damage, and safety risk.
| Problem | Call / say this | Useful next step |
|---|---|---|
| Water running from street/sidewalk | Call 609-989-3222: “Water is running from [location].” | Stay clear of road hazards and undermined pavement. |
| No water or low pressure | “No water/low pressure at [address]. Neighbors [are/are not] affected.” | Ask if a main break, repair, conservation advisory or boil advisory is active. |
| Damaged fire hydrant | Call 609-989-3222 and give nearest address/cross street. | Keep people away from hydrant and traffic. |
| Sewer backup | Call 609-989-3081 daytime or 609-989-4000 after hours. | Stop using water, avoid wastewater contact, document damage only if safe. |
| Private sewer line problem | If no City sewer restriction exists, property owner may need plumber/drain-cleaning service. | Check homeowner insurance for sewer backup coverage. |
| Sewer inlet flooding / markout | Call 609-989-3180, Monday-Friday, 7:30 AM-3:30 PM. | Give street location and flooding condition. |
Start, Renew or Install Water Service
Water service application
- Billing name, address, email and telephone.
- Service/meter location and municipality.
- Service type: single-family, multi-unit, commercial or industrial.
- Plumber/contractor name, email and telephone.
Request type
- New service.
- Service renewal.
- Only meter.
- Domestic line, fireline or irrigation line size.
Key offices
Billing: 609-989-3055
Meter: 609-989-3225
Construction & Maintenance: 609-989-3222
Engineering: 609-989-3822
| Application issue | Official detail | Action |
|---|---|---|
| Municipality field | Application options include Trenton, Ewing, Hamilton, Lawrence and Hopewell. | Mark the correct service municipality. |
| Well water status | Applicant must state whether currently served by well water. | If on a well, follow the well-disconnection section carefully. |
| Well disconnection | Application says well appurtenances must be removed under NJDEP Safe Drinking Water Act rules, with fine risk up to $5,000 for noncompliance. | Coordinate with plumber and TWW Meter Office. |
| Service lateral | Application describes service lateral installation from water main to about 18 inches beyond property side of curb/edge of pavement after private plumbing is installed to about 18 inches from curb/edge. | Do not start construction before TWW approval. |
| Meter installation | Application states no water service until Meter Office installs meter and TWW establishes service. | Coordinate with Meter Office at 609-989-3225. |
| Unauthorized service | Application warns service established by anyone other than TWW is theft of service and may result in legal action. | Do not open/restore service yourself. |
Lead Service Line Replacement: What Customers Need to Do
2031 deadline
TWW says all lead and galvanized service lines must be replaced by 2031.
Free mandatory program
TWW’s 2026 update says the program is free and mandatory, with state approval and municipal ordinance coverage.
Check your line
Use the TWW lead program map and self-survey to check whether your property is known, unknown, lead or galvanized.
| User question | Direct answer | Action |
|---|---|---|
| Who owns what? | TWW owns the line from water main to curb stop; property owner owns curb stop to water meter. | Still participate in TWW replacement when contacted. |
| How do I participate? | Approved contractors go door-to-door in planned neighborhoods and provide sign-up instructions. | Complete the Right of Entry form when contacted. |
| Will a contractor ask for money? | TWW lead program says no TWW contractor will ask for payment. | Do not pay door-to-door impostors; verify contractor information. |
| What if I refuse? | If you opt out, TWW says you may be required to replace the lead/galvanized line at your own expense within 90 days of the offer and submit proof. | Respond to the form even if declining. |
| What if line material is unknown? | Use the Check Your Line page and upload well-lit photos through the survey. | Help TWW update inventory. |
| Where is 2026 work happening? | 2026 phases include Trenton, Ewing and Lawrence, with vendors Roman E&G and Dewcon listed in TWW’s January 2026 announcement. | Watch for door hanger/contact if your area is selected. |
Water Quality, Alerts, Treatment and Boil Advisory Prep
Water source
TWW’s treatment page says water is acquired from the Delaware River and processed through treatment facilities.
Sampling
TWW says it tests water after it leaves the plant by sampling more than 75 sites each week throughout the service territory.
TWW-Connects
Sign up for Reverse 911 alerts by robocall, text or email for drinking-water emergencies, field operations and boil-water advisories.
| Concern | Where to check | What to do |
|---|---|---|
| Current water quality report | Consumer Confidence Reports | Use the newest available CCR for official drinking-water data. |
| Emergency alert | TWW-Connects | Register phone/email/text contact methods. |
| Cloudy or discolored water | Call TWW if sudden, persistent or after local repair work. | Give address, tap affected, hot/cold/all taps and time started. |
| Boil advisory question | TWW-Connects and official Water & Sewer news. | Do not rely only on social posts; check official alerts. |
| Legionella mitigation | TWW Legionella mitigation information page. | Follow official risk-reduction guidance, especially for building plumbing. |
| Water treatment process | Water Treatment education page. | Learn aeration, coagulation, sedimentation, filtration and disinfection process. |
Bill Assistance and Mercer County Help
Call TWW first
Customer Care: 1-866-TWW-BLUE
Ask about amount due, deferred plan, disputed charge, shutoff deadline and payment confirmation.
Local nonprofit help
TWW’s termination notice listed Mercer County organizations helping customers with utilities, housing and food pantry assistance.
Consumer rights
TWW links to Utility Customer Bill of Rights guidance, including deferred plan, meter test and termination-notice rights.
| Organization | Address / area | Phone |
|---|---|---|
| Arm In Arm | 1 N. Johnston Avenue, Hamilton Township | 609-396-9355 |
| Catholic Charities | 39 N. Clinton Avenue, Trenton | 609-394-5181 |
| HomeFront | 1880 Princeton Avenue, Lawrence Township | 609-989-9417 |
| Mercer County Board of Social Services | 200 Woolverton Street, Trenton | 609-989-4320 |
| Mount Carmel Guild | 73 N. Clinton Avenue, Trenton | 609-392-5159 |
| United Way of Greater Mercer County | 3444 Quakerbridge Road, Hamilton Township | 609-896-1912 |
Before Digging, Service-Line Work, Sewer Work or Hydrant Work
1. Call 811
Use New Jersey One Call before excavation.
2. Contact TWW offices
Meter, engineering, construction and maintenance numbers are listed on the service application.
3. Coordinate service
Do not start construction before TWW approves the water service application.
4. Report damage
Call 609-989-3222 for water-service damage, leaks or emergency issues.
Google Map: Trenton Water Works Office
Use this map for the Trenton Water Works physical address at 333 Cortland Street. Mail bill payments to the P.O. Box instead of the physical office unless TWW instructs otherwise.
| Location / route | Address / phone | Use for |
|---|---|---|
| Trenton Water Works | 333 Cortland Street, Trenton, NJ 08638 | Physical TWW office reference and utility operations. |
| Payment mailing address | Trenton Water Works, P.O. Box 528, Trenton, NJ 08604 | Mail water/sewer bill payments. |
| Trenton Sewer Utility | 1502 Lamberton Street, Trenton, NJ 08611 | Sewer utility reference; listed phone 609-989-3093. |
| Water leak / emergency | 609-989-3222 | Water main breaks, leaks, water-service problems, after-hours emergencies. |
| Sewer backup after hours | 609-989-4000 | After-hours sewer backup reporting. |
| Customer Care | 1-866-TWW-BLUE | Billing, payment, account, past-due and general customer questions. |
Trenton Water Utility FAQ
What is the Trenton Water Utility official name?
The official utility is Trenton Water Works, operated by the City of Trenton Department of Water and Sewer.
What is the Trenton Water Works customer service phone number?
For account-related questions, call Customer Care at 1-866-TWW-BLUE. Customer Care hours are Monday-Friday, 9:00 AM-4:00 PM.
Where do I pay my TWW bill online?
Use the official City of Trenton Online Water/Sewer Utility Payments link, which opens the InvoiceCloud Pay or View Bills portal.
Does TWW have one-time online payment?
Yes. InvoiceCloud says One Time Pay does not require registration.
What is the 24-hour payment phone line?
The InvoiceCloud portal lists the 24-hour payment line as 855-667-0982.
What fees apply to online payments?
InvoiceCloud lists a $4.50 flat fee for credit-card and e-check payments. E-check AutoPay is listed at $0.95, while credit-card AutoPay is subject to the $4.50 flat fee.
What are the payment caps?
InvoiceCloud lists a $500 credit-card maximum charge and a $125,000 e-check maximum charge, not including service fees.
Where do I mail a Trenton Water Works payment?
Mail payments to Trenton Water Works, P.O. Box 528, Trenton, NJ 08604.
What is the TWW physical address?
The physical address is Trenton Water Works, 333 Cortland Street, Trenton, New Jersey 08638.
Who do I call for a water main break?
Call 609-989-3222 to report water running from streets or sidewalks, water leaks, water-service problems or after-hours emergencies.
Who do I call for a sewer backup?
For sewer backup, call 609-989-3081 between 7:00 AM and 3:30 PM. After hours, call 609-989-4000.
Does TWW serve only Trenton?
No. TWW provides water to Trenton and parts of Hamilton, Ewing, Lawrence and Hopewell Townships.
How are Trenton and township bills different?
In the City of Trenton, water and sewer charges are assessed against the property. In suburban townships, charges are assessed against the account customer, and township sewer billing may be separate.
How do I start new water service?
Call 609-989-3824 for new or renewed water service. The water service application asks for billing information, service/meter location, municipality, service type and contractor details.
Who do I call for meter repair or replacement?
Call 609-989-3225 or 609-989-3226 for water meter repair or replacement.
How do I check lead service line replacement status?
Use twwleadprogram.com and the Check Your Line map. If your service line is unknown, follow the self-survey instructions and upload clear photos if requested.
Do I have to pay a TWW lead replacement contractor?
No. TWW’s lead program says approved contractors will not ask customers for payment. Verify door hangers and contractor contact details before signing.
Where can I get emergency drinking-water alerts?
Sign up for TWW-Connects, the Reverse 911 alert system that can send robocalls, texts or emails about water-quality issues, boil advisories and field operations.
Where is the TWW water quality report?
Use the official Consumer Confidence Reports page. It lists annual Trenton Water Works reports, including the newest available report PDFs.
Is this the official Trenton Water Works website?
No. This is an independent utility guide. Confirm live balance, shutoff status, deadlines, service changes, rates, notices, lead-line work and emergencies with official TWW or City of Trenton sources.
30-Second Trenton Water Checklist
Paying: InvoiceCloud Pay Now → One Time Pay or Sign In → $4.50 listed fee → save confirmation.
Customer Care: 1-866-TWW-BLUE, Monday-Friday, 9 AM-4 PM.
Emergency: water leak/main break/no water: 609-989-3222. Sewer backup daytime: 609-989-3081; after hours: 609-989-4000.
Starting service: use Water Service and Meter Installation Application → coordinate meter, engineering and construction offices.
Lead line: check twwleadprogram.com → respond to contractor/Right of Entry → no TWW contractor should ask for payment.