Home › Washington › Federal Way › Plumbers › Mainline Drain Service LLC

Mainline Drain Service LLC

Registered with Washington L&I Active
MAINLDS780K3 · Plumbing Contractor · renews May 2028

From the state register, October 17, 2026. Confirm on L&I, which also shows their bond and insurance.

(206) 294-9691Phone on their state registration Reviews on GoogleOpens Google Maps
Journey levelSpecialty on the register

Before you hire them

1Check the name on your estimate matches Mainline Drain Service LLC and registration MAINLDS780K3.
2Ask whether the job needs a permit, and who pulls it.
3Get a written estimate first. No big cash deposits.
Ask this pro to call me

Free. Goes to one pro registered with Washington L&I.

Referral service, not a contractor. Privacy.

"Get a pro to call me" goes to Mainline Drain Service LLC if they can take it; if not, to one other registered plumber near Federal Way.

Other registered plumbers in Federal Way

Hong's General Const & PlmbgHONGSGC791O7Rivas Plumbing LLCRIVASPL761P5Cade Plumbing LLCCADEPPL782O3Thriftway Plumbing IncTHRIFPI791O2Hernandez PlumbingHERNAPL767JNValencia Plumbing LLCVALENPL783C2

All plumbers in Federal Way

Is this your business? Add your services and a pro-tip video, and get customer requests. Tell us what you'd like.