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Gas Line Repair in Sammamish, WA
Most of Sammamish is on the gas main: 76% of households. That means a meter on the wall and a service line under the ground, and a boundary between them that federal rules put in a specific place.
Read this first
Responsibility changes hands at the meter outlet. The line under the ground between the street and the meter is the utility's up to that point, and the yard line and house piping after it are the property owner's. 76% of homes in Sammamish heat with utility gas.
Source: US Census Bureau, American Community Survey table B25040; the service line boundary is 49 CFR § 192.3.
If you smell gas right now
Leave the building on foot. Do not use a phone or a light switch inside. Call 911 and your gas utility from somewhere else, and do not call us — we are a referral service, not an emergency line. The full list, in order.
How Sammamish is supplied
The meter is doing two jobs: measuring gas, and marking where the federally regulated line stops. The second is the one that matters when something fails.
Buried customer piping past the meter — out to a garage, a grill, a generator — is the owner’s, and it is easy to forget it exists until somebody digs.
| Households in Sammamish | Share |
|---|---|
| Utility (mains) gas | 76% |
| Bottled or tank propane | 2% |
| Electricity | 21% |
| Fuel oil and kerosene | under 1% |
| Wood and everything else | under 1% |
Source: US Census Bureau, American Community Survey 5-year estimates, table B25040 (house heating fuel), 2023 release. Universe: 18,175 occupied housing units. What B25040 measures is the heating fuel, not the connection. It is the closest published proxy for whether there is a buried service line here, and it is a proxy. Service line definition: 49 CFR § 192.3, via PHMSA interpretation PI-12-0003.
Across Washington as a whole, 39% of households are on mains gas and 2% on tank propane. Sammamish sits 37 points above the state on mains and 1 point below it on propane. The state number would tell you something true about the state and very little about here, which is why it is not the number above.
Before anyone digs on the property
The single most dangerous thing most people will ever do to a gas line is put a spade through it. PHMSA calls excavation damage the leading cause of pipeline incidents; 8-1-1 is a nationwide toll-free number to call before any excavation, and calling it gives a 99 percent chance of avoiding an incident.
Source: PHMSA, 811 Day.
What to ask whoever quotes it
If any part of the job is in the ground, ask when they are calling 8-1-1 and whether a private line may be in the way. Both answers should come before the excavation, not during it.
Other Washington towns we route in
- University Place 35% mains gas · 1% tank propane
- Battle Ground 28% mains gas · 2% tank propane
- Ferndale 46% mains gas · 11% tank propane
- Lynnwood 41% mains gas · 1% tank propane
- Bellingham 39% mains gas · 6% tank propane
Checking a plumber in Washington
Washington licenses are issued by the Washington State Department of Labor and Industries, which publishes a public search you can use before work begins.
Gas work is separately permitted and separately licensed in most jurisdictions, so ask specifically about gas rather than plumbing in general.
For repair work, not for a suspected leak.If you can smell gas, leave and call 911 or your utility from outside; this is the wrong number for that. For everything else — a line, a meter, an appliance connection — we will route you to a contractor covering your area, free of charge to you. Non-emergency work in Sammamish goes through this number as well.
Call (888) 752-8038