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Job Title: Sr. Mechanical Estimator

Company: Loenbro, LLC
Business Unit/Department: Estimating                                              
Location: Gilbert, AZ
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 Mechanical Estimator is a key leader within the Estimating Group, responsible for developing accurate, competitive, and comprehensive mechanical construction estimates for complex industrial projects. This role oversees the full mechanical estimating process-including quantity takeoffs, labor and equipment analysis, material pricing, subcontractor evaluations, and risk assessments-for projects up to $25M or higher depending on scope and selfperformance. The Senior Mechanical Estimator interprets mechanical drawings, piping and equipment specifications, isometrics, and contract documents to build detailed work breakdown structures and precise cost models.

Essential Job Responsibilities

Project Estimation:

• Lead preparation of detailed estimates for projects up to $50MM, considering complexity and self-performance scope.
• 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 P&ID drawings and other technical documents.
• Utilize HCSS HeavyBid software for accurate and efficient estimating.
• Incorporate design methodologies such as DesignAssist and DesignBuild when applicable.
• 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:

• Develop and enforce estimating procedures, including pre-estimate checklists and opportunity matrices.
• 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 5-7+ years of experience in industrial construction estimating, with at least 2 years in a leadership role.
• Estimating experience with Accubid, HCSS, HeavyBid, and/or HeavyJob
• Ability to read Interpret P&ID drawings and other technical schematics.
• Scheduling experience with MSP or P6.
• Excellent communication skills - both verbal and written.
• Excellent computer skills including Microsoft Office Suite emphasis on Project Schedule and Excel Tracking.

Preferred:

• Bachelor's degree in construction management, Engineering, or related discipline
• Direct Involvement In civil, concrete, structural steel, equipment setting, and mechanical construction.
• Experience with DesignAssist and DesignBuild delivery methods.
• 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:

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

...we want to hear from you.

Loenbro is an Equal Opportunity Employer

This role will remain open until filled.