David Hayes
Owner / Master Tradesperson
Started Northline Plumbing in 2007. Still involved in day-to-day operations — not just the name on the sign.
Our Team
The people behind Northline Plumbing
Tom Torres
Field Supervisor
Brings 17 years of experience in Milwaukee and keeps standards high in the field.
Diana Cole
Operations Manager
Your point person for scheduling, follow-ups, and the details that keep projects on track.
Why we stay small
Northline Plumbing deliberately keeps the team tight so you work with familiar faces — not a rotating cast of strangers. When you call, someone who knows your project answers.
We hire for attitude and train for skill. Everyone on this page spends time in the field or on the floor, not only behind a desk.