Senior Structural Concrete Estimator - Mechanical

Loenbro

Westminster, CO

Job Title: Sr. Structural Concrete Estimator

Company: Loenbro, LLC

Business Unit/Department: PreConstruction

Location: Westminster, CO / On-site

Reports to: Preconstruction Manager

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 Senior Structural Concrete Estimator is a key leader within the Industrial Estimating Group, responsible for developing accurate, competitive, turn-key self-perform concrete construction estimates for complex industrial projects. This requires the ability to perform quantity takeoffs, labor and equipment analysis, material pricing, subcontractor evaluations, and risk assessments—for projects up to $75M or higher depending on scope and self‑performance. The Senior Structural Concrete Estimator interprets all concrete drawings, specifications, scope requests and contract documents to build detailed work breakdown structures and precise cost models utilizing self-perform production rates and historical costing information to meet project requirements.

Essential Job Responsibilities

Project Estimation:

Demonstrated experience producing self‑perform concrete estimates, not subcontracted buy‑outs.
Lead preparation of detailed estimates for projects up to $75M, considering complexity and self-performance scope.
Oversee discipline estimators on large multi-discipline RFPs.
Validate quantity take-offs and ensure accurate input into estimating software.
Apply advanced cost analysis and contingency planning for risk mitigation.

Technical Expertise:

Interpret and analyze concrete drawings & specifications and other technical documents.
Means & Methods Aptitude
Forming systems (gang, jump, handset, specialty)
Reinforcing placement and congestion planning
Pour sequencing and placement rates
Jointing, curing methods, and crack mitigation
Winter and hot‑weather concrete practices
Ability to interpret geotechnical reports.
Utilize HCSS HeavyBid software for accurate and efficient estimating.
Understands and properly applies general conditions & indirect labor

Client & Stakeholder Engagement:

Represent the estimating team in client meetings, pre-bid conferences, and negotiations.
Communicate clearly with operations, procurement, and project management teams during pre-construction.

Process Management:

Establish and implement standardized estimating protocols, incorporating pre-estimate checklists and opportunity matrices to ensure consistency and accuracy.
Oversee bid review meetings and ensure timely submission of RFIs and proposals.
Ensure compliance with contractual requirements and company standards.

Strategic Contributions:

Provide pragmatic analysis of project execution to optimize efficiency and profitability.
Generate high-level cash flow projections, risk analysis reports, and resource-loaded schedules.
Support business development with conceptual estimates and ROM pricing for new opportunities.

Other duties may be assigned as needed to support business operations.

Minimum Qualifications

Required:

Minimum of 5+ years of experience in industrial construction estimating.
Ability to read and interpret drawings and other technical project specifications.
Excellent communication skills – both verbal and written.
Excellent computer skills including Microsoft Office Suite & Bluebeam

Preferred:

Bachelor’s degree in construction management, Engineering, or related discipline
Estimating experience with HCSS HeavyBid
Direct Involvement In civil, concrete, structural steel, equipment setting, and mechanical construction.
Scheduling experience with MSP or P6.
Proven ability to manage multiple complex bids simultaneously.

Physical Demands and Work Environment

The physical demands and work environment described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodation may be made to enable individuals with disabilities to perform the essential functions.

Work Environment:

Mostly Indoor office setting with controlled temperature.
Occasional Outdoor industrial sites with exposure to extreme weather, potential exposure to noise, dust, chemicals, or other environmental factors.
Travel requirements: up to 10% of time.

This role requires compliance with all applicable safety regulations, personal protective equipment (PPE) requirements, and Loenbro's Environmental Health and Safety (EH&S) policies.

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: