Find a Plumber in Hawaii

Hawaii's Board of Electricians and Plumbers (Department of Commerce and Consumer Affairs) issues journey worker (PJ) and master plumber (PM) credentials; apprentices register under state law. One quirk matters: a plumber may not contract for work on that credential alone. Beyond small permit-free jobs under a cost threshold, a plumbing contractor's license is also required.

• Authority. Board of Electricians and Plumbers, Hawaii Department of Commerce and Consumer Affairs (Professional and Vocational Licensing Division)
• License structure. Journey worker plumber (PJ) / Master plumber (PM); apprentices register under HRS chapter 372
• Worth knowing. A plumber license by itself does not allow offering or contracting plumbing work; a plumbing contractor's license is also required unless the whole job, labor and materials, costs 1,500 dollars or less and needs no permit.

Checked against the official source, September 2026: cca.hawaii.gov. License verification against sources like this is how a pro enters matching on CopperMain. A request never reaches an unverified one.

Hawaii's freeze class is 'rare': winterization, burst-pipe protection, and frost-depth concerns that dominate mainland plumbing simply do not drive decisions here in a typical year. Statewide hardness numbers are not listed because they vary by utility, so your supplier's annual water quality report is the authoritative figure for scale risk at your address.

• Drain Cleaning
• Water Heater Repair
• Sewer Line Repair
• Septic Tank Pumping
• Leak Detection & Repair
• All services →

Local guides for Honolulu, Hilo, Kailua and other Hawaii communities are published as their licensing, water and permit facts are verified. For the job itself, describe the problem and your ZIP: a license-checked plumber who covers your area gets the details and contacts you with next steps and a quote.