KEITH IRVIN CANTRELL

Master Plumber | Responsible Master Plumber | Facility Operations Specialist

About

Highly accomplished Master Plumber and infrastructure operations leader with over 40 years of distinguished experience in commercial, residential, and industrial plumbing systems. As a Licensed Responsible Master Plumber (License #M-45159), I direct comprehensive field operations and large-scale maintenance contracts, ensuring stringent code compliance and safety standards. Proven ability to optimize logistics, manage emergency services, and mentor teams, consistently delivering reliable, high-quality plumbing solutions.

Work Experience

Lead Field Operations Manager / Master Plumber

L&W Maintenants Solutions Inc

Jan 2017 - May 2024

As Lead Field Operations Manager and Master Plumber, co-founded and directed the plumbing branch for L&W Maintenants Solutions Inc, overseeing all permit-pullable work and large-scale maintenance contracts across the DFW Metroplex, ensuring high standards of compliance and operational excellence.

  • Successfully co-founded and launched a new plumbing branch within a licensed multi-service LLC, establishing operational frameworks and securing initial contracts.
  • Served as the Responsible Master Plumber of record, ensuring 100% compliance with Texas plumbing codes and regulations for all permit-required projects.
  • Managed and optimized field service logistics for emergency diagnostics and repairs, significantly reducing critical downtime for commercial and industrial clients.
  • Orchestrated complex project schedules and subcontractor engagements across the Dallas-Fort Worth metroplex, consistently delivering projects on time and within budget.
  • Maintained an impeccable compliance record with zero disciplinary actions over 40+ years, upholding the highest standards of safety and regulatory adherence.

Certificates

Licensed Master Plumber

Texas State Board of Plumbing Examiners

Sep 2025

Responsible Master Plumber Endorsement

Texas State Board of Plumbing Examiners

Jan 2025

Plumbers Continuing Education

Bobby Doran’s Plumbers Continuing Education

Aug 2023

OSHA Safety Compliant

OSHA

Oct 2022

Skills

Plumbing Expertise

  • Master Plumbing
  • Responsible Master Plumber
  • Commercial Plumbing
  • Residential Plumbing
  • Industrial Plumbing
  • Facility Plumbing Infrastructure
  • High-Pressure Systems
  • Emergency Diagnostics
  • Emergency Repairs
  • Preventative Maintenance
  • Plumbing Code Compliance
  • Large-Scale Operations

Operations & Leadership

  • Field Operations Management
  • Logistics Management
  • Vendor Management
  • Contract Management
  • Project Coordination
  • Subcontractor Management
  • Team Leadership
  • Mentorship
  • On-the-job Training
  • Client Liaison
  • Cross-functional Collaboration
  • Union Team Supervision
  • Non-union Team Supervision

Systems & Compliance

  • Maximo
  • CMMS Systems
  • OSHA Safety Compliance
  • Regulatory Compliance
  • Permitting
  • Background Check Clearance