Gas line work in Bellevue covers new runs for ranges, dryers, tankless water heaters, generators, and outdoor fire pits, plus leak testing, repairs, and whole-house re-pipes of aging black iron. Every job is the same on the parts that matter: a City of Bellevue permit, a pressure test, and a final inspection before the gas is ever turned on. Washington State does not allow homeowner gas work — it requires a licensed plumber or gas piping contractor, and an unpermitted run is one of the items home inspectors flag most reliably at sale. The most common call is a single-appliance run for a new range or dryer; the full cost breakdown is in our gas line installation cost in Bellevue guide, and the step-by-step for adding an appliance line is in our gas appliance line install guide. If you smell gas right now, stop reading and follow our I smell gas: what to do right now guide — get out first, call from a safe distance.
A new appliance run, a leak repair, and a whole-house re-pipe are different jobs. We confirm pipe material, run length, and the BTU load of every appliance on the line before quoting.
On the tablet before any work, with the permit line included. Gas work is never time-and-materials with us — you see the number before we start.
We pull the City of Bellevue permit, run the line in approved material, and pressure-test the system. The gas stays off until the test holds and the city inspects.
We schedule and attend the final inspection. Only after it passes do we connect the appliance and turn the gas back on — never before.
Real prices for our most common gas line installation and repair jobs. Every quote is flat-rate and written on a tablet before we start.
Gas work is not a gray area — it's licensed, permitted, and pressure-tested, or it doesn't happen. We won't connect a new appliance to an uninspected line, and we'll tell you plainly if an existing run has problems before we touch it.
Deeper background on the issues this service addresses:
No — not legally in Washington State. Gas line installation requires a licensed plumber (or gas piping contractor) and a permit from the City of Bellevue. All new gas work must be pressure-tested and inspected before the gas is turned on. The permit creates a record with the home's title history, which matters at sale. Unlicensed gas work is a common flag on home inspections and can void homeowner's insurance coverage for any resulting loss.
Most single-appliance runs — range, dryer, tankless water heater — cost $450 to $850 including the City of Bellevue permit, pressure test, and inspection. The range reflects run length (a 6-foot range hookup behind an existing gas stub costs less than a 40-foot run to a new location), pipe sizing, and whether the work is in a finished or unfinished space. Full cost breakdown in our gas line installation cost in Bellevue guide.
Get everyone out immediately without touching any light switch, phone, or electrical device inside. From outside, call 911 or Puget Sound Energy at 1-888-225-5773. PSE responds to gas odor calls 24/7 at no charge and will shut off your service if needed. Do not re-enter until PSE or the fire department clears the building. Full step-by-step is in our I smell gas: what to do right now guide.
Black iron (threaded steel) is the traditional residential gas pipe — durable but rigid, requiring fittings at every turn. Corrugated Stainless Steel Tubing (CSST) is flexible, installs faster, and handles Bellevue's seismic conditions better. Washington code requires arc-fault bonding on CSST to protect against lightning-induced puncture. New installations use CSST where the run allows it; straight branch lines often still use black iron. Either material must be sized for the BTU load of every appliance on the line.
Yes. All new gas piping — including single-appliance stub-outs — requires a City of Bellevue mechanical permit and a licensed contractor. The permit triggers a pressure test and a final inspection by the city before the gas is turned back on. We include the permit in every gas line quote. There is no legal path to connect a new gas appliance without the permit, and a missing permit on gas work is one of the items home inspectors flag most reliably during sale transactions.
Burst pipes, flooding, sewage backups. Real plumbers answer the phone, 365 days a year.
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