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Customer Service
301-206-4001 
Weekdays: 8:00 am - 6:00 pm 
Email: Customer Service
One Stop Shop
Weekdays: 8:00 am - 5:00 pm
Interactive Voice Response System
301-206-4001
24 hours, 7 days/week
Toll-Free: 800-828-6439
TTY: 301-206-8345
Visit Customer Service

WSSC Water offers five ways to pay your bill: Online, by Phone, by Mobile App, by Drive-Thru, by Mail and in Person. Go to Pay My Bill for more information.

Pay Your Bill Now

If you're experiencing a water emergency, such as a broken water main, or a sewer emergency, report it using our mobile app, email the Emergency Services Center, or call us at 301-206-4002.

Report a Problem

We're here to help. Eligible residential customers may start a pay plan or learn more about all of the financial assistance resources. Get started by going to Flexible Pay Plans.

Financial Assistance Programs

Permit Services is open Monday-Friday, 7 a.m.-4 p.m. except Wednesdays, 7 a.m.- Noon. Call us at 301-206-4003 for more information.

Go to ePermitting

Learn More about Permit Services

Toilet Leaks

Did you know that an unexplained toilet leak is one of the main causes of a high water bill? Learn how much water a leaking toilet can waste and how to check for toilet leaks to save on your bill! 

cost of toilet leak

The most common cause of a toilet leak is a faulty flapper. Watch this video to learn more.

How to Check for Toilet Leaks

  1. Remove the lid from the toilet tank. 
  2. Drop one dye tablet in the tank. 
  3. Wait 15 minutes. DO NOT FLUSH!

If you see color in the bowl, you have a leak. That’s because water is leaking from the tank into the toilet bowl. You’ll want to make repairs as soon as possible, either doing it yourself or hiring a Registered Licensed WSSC Water Plumber. We recommend checking for toilet leaks twice a year.

toilet leaks

WSSC Water customers can request dye tablets by emailing communications@wsscwater.com. Please include the number of toilets in your home and your mailing address.

Questions about your WSSC Water bill or usage?

Call us at 301-206-4001. Our customer service advisors are available from Monday - Friday 8:00 a.m. - 6:00 p.m, or by email at customerservice@wsscwater.com. 

Last Modified: February 10, 2025, 8:33 am EST