Commercial HVAC/R Service Technician

About the Role

At Service Unlimited, Inc. (SUI), we believe top-tier commercial technicians deserve an organization that sets them up to win. That means organized dispatching, steady coordination from the office, well-equipped support, and leadership that understands the realities of the roof because we came up through the field ourselves.

Founded in 1962, SUI is a growing $10M+ commercial mechanical contractor built on craftsmanship, disciplined operational systems, and long-term client trust. We operate on clear, consistent core processes so expectations are never a moving target. Our philosophy is simple: freedom within a framework. We provide the structure, tools, and technical backing you need to excel, then get out of your way and trust your expertise without micromanagement. When an unexpected challenge arises on a job, we don’t point fingers instead we pull together with curiosity, assess the system, and solve the root problem as a team.

If you are an experienced technician driven by diagnostic mastery, complex mechanical problem-solving, and working alongside peers who take genuine pride in their craft, SUI is where you belong.

What Sets SUI Apart

• Trades-Led Leadership: Supported by licensed leaders who know mechanical systems inside and out, speak your language, and back you up on tough calls.
• Manageable On-Call Schedule: A generous 12-week rotation running Friday to Friday, ensuring your personal time stays predictable and protected.
• Home Dispatch & Coverage: Dispatched directly from your house. Our geographic footprint covers the state of Delaware and roughly a one-hour driving radius from our New Castle base—keeping travel practical and focused.
• Modern Fleet & Travel Support: Newer, fully stocked take-home service truck equipped with an E-ZPass and complete fuel/maintenance cards.
• Tool Purchasing Program: In-house support to help you build and maintain a professional diagnostic and installation tool inventory without bearing the burden alone.
• Modern Field Operations: Paperless workflows utilizing BuildOps for straightforward digital dispatching, asset tracking, and clean documentation.
• A Culture of Ownership: Clear, standardized service processes that give you autonomy on site without the red tape or changing rules.

Key Responsibilities & Balance of Work

While comprehensive preventative maintenance forms the bedrock of our customer relationships, this role is built for a well-rounded technician who excels at in-depth diagnostics, equipment variety, and complex repair execution:

• Diagnostic Troubleshooting & Advanced Repairs: Troubleshoot, diagnose, and execute mechanical and electrical repairs across commercial systems including rooftop package units (RTUs), split systems, chillers, boilers, make-up air units, pumps, and light building automation/controls.
• Preventative Maintenance & System Reliability: Execute scheduled planned maintenance with an owner’s eye. Identify component wear, airflow/refrigerant charge deficiencies, and safety hazards to maximize customer equipment uptime.
• Solutions & Repair Identification: Partner directly with facility managers and business owners by uncovering equipment deficiencies, diagnosing root causes, and providing accurate repair scopes/recommendations through BuildOps.
• Collaborative Technical Problem-Solving: Act as a go-to technical resource across the crew. Collaborate with peers on difficult troubleshooting calls and share insights to elevate overall crew capacity.
• Field Documentation: Maintain clean, accurate service histories, parts requisitions, and customer documentation via BuildOps to support operational consistency and customer trust.
• Truck Inventory Standards: Maintain assigned vehicle stock to defined par levels, ensuring field readiness and high first-time-fix rates.

What Success Looks Like (Year-One Performance Profile)

We don’t manage by mood or shift expectations on the fly. We position our team to succeed with clear year-one milestones:

• Day 90 — Operational Autonomy: Achieve full proficiency with SUI’s core service workflows, documentation standards in BuildOps, and safety protocols for smooth, low-friction field execution.
• Month 6 — Reliability & Value Delivery: Execute assigned preventative maintenance agreements with a 100% on-time completion standard while consistently scoping necessary corrective repairs to maximize system reliability.
• Year 1 — Crew Capacity & Diagnostic Resource: Complete targeted technical cross-training milestones, operate with full diagnostic independence on complex service calls, and serve as a reliable peer resource on larger mechanical challenges.

Qualifications & Mindset

• Field Experience: Proven hands-on experience in commercial HVAC troubleshooting, maintenance, and repair operations.
• Diagnostic Acumen: Strong mechanical, electrical, and refrigeration diagnostic capabilities; comfortable interpreting wiring schematics and methodically solving system faults.
• Personal Ownership: A self-starter who values doing the job right the first time, communicating proactively with customers, and taking accountability for assigned accounts.
• Continuous Improvement: A humble, growth-oriented mindset that values ongoing technical education and readily admits blind spots so the team can support you.
• Certifications & Licensure: EPA Universal Certification required; valid driver’s license with an insurable, clean driving record.

What We Offer

• Highly competitive hourly pay (based on technical experience level and certifications).
• Fully equipped, modern service vehicle and tool allowances.
• Comprehensive health, dental, and vision insurance options.
• Paid Time Off (PTO) and holiday pay.
• Company-matched retirement plan.
• Ongoing technical training and funded certification pathways to accelerate your career advancement.
• A stable, high-expectation work environment backed by a 60+ year company history.

Pay: $30.00 - $55.00 per hour

Benefits:

• 401(k)
• 401(k) matching
• Company truck
• Dental insurance
• Employee assistance program
• Flexible schedule
• Health insurance
• Health savings account
• Life insurance
• Paid time off
• Professional development assistance
• Referral program
• Vision insurance

Application Question(s):

• Are you comfortable working independently in a field-based position that requires traveling between commercial sites throughout Delaware and the surrounding region? Do you have a valid driver’s license and an acceptable driving record that allows you to operate a company-provided vehicle?
• How many years of commercial HVAC service experience do you have? Please briefly describe your experience, specifically regarding your work with commercial facilities and executing routine preventative maintenance agreements.
• Please outline the specific types of commercial HVAC equipment you are most proficient in servicing and troubleshooting. Additionally, what field service management software or digital tools have you used to manage your tickets and customer notes?
• What are your hourly rate or salary requirements? Please provide a specific number.

License/Certification:

• Journeyman HVAC certification (Preferred)

Work Location: In person