Black Diamond, Washington

Licensed contractors in Black Diamond, WA

3 contractors located in Black Diamond hold an active state license. Open a profile to see each license number, classification, status and expiration date.

• Plumbers 2
• General Contractors 1

• DCI Plumbing Inc PLUMBING CONTRACTOR · 2 licenses · expires Sep 2027 22202 SE 304TH St
• Miles Plumbing LLC PLUMBING CONTRACTOR · 2 licenses · expires Jun 2027 32303 3RD Ave
• Redline Mechanical CONSTRUCTION CONTRACTOR · 2 licenses · expires Jul 2027 24230 Roberts Dr

Washington Contractor License Lookup (L&I)