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Welcome To Washington Gas

For more than 165 years Washington Gas has been distributing natural gas to customers in the District of Columbia, Maryland and Virginia. We bring natural gas to your home or business safely and reliably.

Preventing Underground Utility Damage


 811 Logo  

One easy call to 811 initiates the free service to locate underground utilities and helps protect you, your family and neighbors from injury and expense.

Washington Gas Damage Prevention Hotline:  800-428-5364

Washington Gas has set up a toll-free telephone number for customers and excavators who can now dial 1-800-428-5364 with issues, complaints or compliments about Washington Gas' performance at excavation sites.

811 Call Before You Dig
Provides an overview of the service and resources for more information. 

en Español

When planning any type of construction, home improvement or landscaping project that requires digging or excavating, call 811* to notify the underground utility line locating service -- known as the One Call Center -- in your area at least two full business days (excluding weekends and holidays) before you are scheduled to begin the project.

At no charge, the One Call Center will transmit the information to facility owners or their designated representatives to locate buried utility lines such as gas, electric, phone, and cable television, with high visibility safety paint and/or flags. The markings can help you avoid damage that can cause serious injury, significant expense and service outages.

Don't begin work until the lines have been marked or cleared as "no conflict."
If in doubt, contact the One Call Center.

*Professional excavators and contractors are encouraged to use the Web ticketing systems at the applicable Web sites below to have utilities located. 

Underground Utility Location Services

District of Columbia



District One Call
811 or 202-265-7177

Miss Utility Logo - Maryland



Miss Utility of Maryland
811 or 800-257-7777

Miss Utility Logo - Maryland

Miss Utility Logo - Virginia


Washington Gas and UtiliQuest have engaged in a multi-year partnership to uphold the company's commitment to provide a safe and reliable natural gas distribution system and service.