Estimator III Mechanical/Structural

Job Title: Estimator III

Company: Loenbro, LLC
Business Unit/Department: Loenbro Industrial Construction
Location: As Assigned
Reports to: Chief Estimator
Employment Type: Full Time
FLSA Classification: Exempt

About Loenbro

Loenbro is a trusted, long-term construction lifecycle partner to thousands of customers across the U.S. Our market spans all industries, and our service offerings include Critical Electrical, Mechanical & Structural, Soft Crafts, Inspection, Underground Maintenance and Installation, and Fabrication. Our expertise lies in simplifying the complex and establishing long-standing relationships with our partners. We have a national presence but a local approach—every customer benefits from our capabilities and our care.

At Loenbro, we don’t just offer jobs—we build careers grounded in integrity, teamwork, excellence, and purpose. Join a team where your expertise is valued, your growth is supported, and your work helps maintain and enhance the critical infrastructure that powers communities across the nation.

Job Summary
The Estimator III leads complex pursuits and major scopes with minimal supervision while providing advanced technical judgment, quality control, and development support to the estimating team. This role integrates work packages, leads risk and constructability analysis, directs quotation strategy, and coordinates estimate decisions with key stakeholders. A typical project-value guide is up to approximately $50 million, but complexity, risk, delivery method, scope integration, and required independence govern assignment.

Essential Job Responsibilities

• Lead planning and execution of complex plan-and-specification, design-assist, design-build, and conceptual pursuits.
• Integrate multiple work packages and validate quantities, productivity, pricing, indirect costs, schedule assumptions, and execution strategy.
• Lead risk, constructability, contingency, and value-engineering analysis for assigned pursuits.
• Direct quotation strategy, bid leveling, scope reconciliation, and resolution of subcontractor and vendor gaps.
• Lead estimate reviews for assigned work and perform peer QA/QC on estimates of limited to moderate risk.
• Coordinate with clients, designers, Operations, Procurement, and Business Development on scope, pricing, and pursuit strategy.
• Mentor and direct junior estimators on pursuit assignments without assuming department personnel authority.
• Contribute to cost history, benchmarks, production data, tools, templates, and process improvement.
• Support estimate turnover and lessons-learned activities to improve future estimate quality.

Minimum Qualifications

Required:

· Minimum of 5 years of relevant construction estimating or equivalent directly applicable experience, with a strong focus on mechanical, structural, and industrial construction.

· Advanced estimating capability with demonstrated experience independently developing complex self-perform estimates from conceptual through final bid stages.

· Proven experience estimating self-perform scopes including light civil, concrete/structural, structural steel installation, process engineering, and process piping.

· Ability to lead estimate planning, scope development, quantity takeoffs, cost analysis, risk identification, estimate reviews, and cross-functional coordination with minimal supervision.

· Strong command of labor productivity, crew composition, production rates, material and equipment pricing, subcontractor/vendor analysis, indirect costs, general conditions, and proposal development.

· Advanced ability to interpret and quantify mechanical, structural, process piping, process engineering, civil, architectural, and related construction drawings and specifications.

· Demonstrated ability to identify scope gaps, constructability concerns, execution constraints, productivity risks, and interfaces between mechanical, structural, civil, and process scopes.

· Experience developing detailed self-perform estimates for concrete structures, structural steel installation, process piping systems, mechanical systems, equipment installation, and light civil/site work.

· Effective written, verbal, presentation, collaboration, and mentoring skills, with the ability to communicate estimate assumptions, risks, and recommendations to project leadership.

· Proficiency with applicable estimating and takeoff software, Microsoft Office, reporting, CRM, and document-management systems.

· Ability to travel periodically to offices, client locations, and project sites.

· Valid driver’s license and insurability when driving is required.

· Advanced proficiency in mechanical/structural estimating and self-perform construction, with demonstrated ability to evaluate quantities, labor requirements, productivity, material costs, equipment needs, and overall execution strategy.

Preferred:

• Experience with conceptual, design-assist, design-build, or multi-discipline estimating.
• Relevant degree, technical training, field experience, or professional certification.
• HCSS HeavyBid and/or Accubid estimating software proficiency

Potential Hazards:

• Potential exposure to extreme cold and hot temperatures
• Exposure to manufacturing, pipeline, and refining environment
• Exposure to noise above 85 decibels and intense odors
• Exposure to areas with limited visibility

Physical Demands and Work Environment

• Climbing up and down stairs and ladders to both get in and out of trenches and up to elevated platforms, including scaffolding at significant heights
• Lifting necessary equipment and materials 1–50 pounds, 50% of the time on a monthly basis for required tasks
• Potential or periodic requirements may include the following:
  • Walking on uneven terrain, with an average of 2 miles per day
  • Standing
  • Sitting, stooping, crawling, and kneeling
  • Use of respirator if position requires
  • Driving if required to travel
• If driving is required, a valid driver’s license and proof of insurability are required. All drivers are subject to a DMV background records search.

Benefits

Loenbro offers a competitive salary, comprehensive benefits package, and rewards to those who join our team:

• Medical, dental, and vision insurance
• 401(k) retirement plan with company match
• Paid time off (PTO) and holiday pay
• Life and disability insurance
• Professional development and training opportunities
• Employee assistance program (EAP)

Benefits eligibility may vary based on employment classification and hours worked.

Guided by Core Values (LEAD), grounded in grit and a commitment to excellence, Loenbro betters our families, customers, and local communities.  If you’re ready to be part of a company that LEADS by:

• Living with Integrity
• Exceeding Expectations
• Acting with Urgency
• Delivering Excellence

…we want to hear from you.

Loenbro is an Equal Opportunity Employer. This job will remain open until filled.