Backflow Specialty contractors in Lynnwood, WA
Backflow specialty contractors install and service the backflow prevention assemblies that keep contaminants out of drinking water lines. Washington currently lists 3 Backflow Specialty contractors registered in Lynnwood.
A R Brown Backflow Testing
Backflow Specialty · Lynnwood, WA
License #ARBROBB760OF · $6,000 bond
Optimal Backflow LLC
Backflow Specialty · Lynnwood, WA
License #OPTIMBL743JC · $6,000 bond
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Built from Washington State L&I public records, updated Aug 13, 2026. No star ratings or reviews — verification only.