Estimator III Mechanical/Structural
About the role
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.
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.
Potential hazards: 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 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; 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 (valid driver’s license and proof of insurability required; all drivers subject to