Job Description

Estimator - Commercial Mechanical HVAC

Location: Frankfort, IL

Compensation: $80,000–$125,000/year (DOE) + Performance Bonuses

Additional Perks:

• Mileage reimbursement for project-related travel
• Company cell phone
• Company laptop

About PremiStar South

PremiStar South, formerly Southwest Town Mechanical, is a leading mechanical contractor serving the Chicagoland area. We specialize in commercial and industrial HVAC, plumbing, piping, and mechanical services. Backed by the nationwide PremiStar organization, we combine the resources of a national company with the reputation and customer relationships we've built over decades.

Our commitment to safety, quality workmanship, and exceptional customer service has made us a trusted partner throughout the region. As we continue to grow, we're investing in talented professionals who want long-term career opportunities and the chance to work on challenging commercial and industrial projects.

The Opportunity

PremiStar South is looking for an experienced Estimator II to join our growing preconstruction team.

In this role, you'll prepare accurate, competitive estimates for commercial HVAC, plumbing, piping, and mechanical construction projects. You'll work closely with project managers, operations, vendors, subcontractors, and customers to develop project budgets, identify value engineering opportunities, and help ensure successful project execution.

This is an excellent opportunity for an estimator who enjoys working on complex commercial projects in a collaborative environment with opportunities for long-term career growth.

What You'll Do

• Prepare detailed cost estimates for commercial HVAC, plumbing, piping, and mechanical construction projects.
• Review drawings, specifications, bid documents, and project requirements.
• Perform quantity takeoffs for HVAC equipment, ductwork, piping, plumbing systems, controls, insulation, and related materials.
• Solicit and evaluate vendor and subcontractor pricing.
• Develop labor, material, equipment, and subcontractor cost estimates.
• Identify project risks, constructability concerns, and value engineering opportunities.
• Coordinate with project management, operations, engineering, and field teams throughout the estimating process.
• Attend pre-bid meetings, site walks, and customer meetings as needed.
• Prepare bid proposals, clarifications, and supporting documentation.
• Maintain estimating databases, vendor pricing, and historical cost information.
• Participate in project turnover meetings to support a smooth transition from estimating to operations.
• Support negotiated work, design-build projects, conceptual budgeting, and competitive bids.
• Stay current on market pricing, labor rates, and industry trends.

What We're Looking For

• 5+ years of estimating experience in commercial mechanical construction.
• Strong experience estimating commercial HVAC, piping, plumbing, and mechanical systems.
• Ability to read and interpret construction drawings, specifications, schedules, and contract documents.
• Experience performing detailed quantity takeoffs and preparing complete project estimates.
• Strong understanding of commercial HVAC equipment, duct systems, hydronic piping, plumbing systems, controls, and installation methods.
• Knowledge of labor productivity, equipment pricing, and subcontractor management.
• Experience with estimating software, Microsoft Excel, Microsoft Office, and digital takeoff platforms.
• Excellent organizational skills and attention to detail.
• Strong communication and collaboration skills.
• Ability to manage multiple bids while meeting deadlines.
• Experience with design-build, negotiated work, and competitive bidding is preferred.
• Bachelor's degree in Construction Management, Mechanical Engineering, or a related field is preferred, but equivalent industry experience will be considered.
• Valid driver's license with a clean driving record.

Compensation & Benefits

• $80,000–$125,000/year, depending on experience
• Performance-based bonus opportunities
• Medical, dental, and vision insurance
• 401(k) with company match
• Paid time off and company holidays
• Company cell phone and laptop
• Professional development and technical training
• Career advancement opportunities throughout the PremiStar family of companies
• Stable, team-oriented work environment

Why Join PremiStar South?

At PremiStar South, you'll work alongside experienced professionals on a diverse portfolio of commercial and industrial mechanical projects throughout the Chicagoland area. Backed by the strength of a nationwide organization, we offer the stability, resources, and career growth opportunities of a national company while maintaining the culture and relationships of a respected local contractor.

If you're looking to build your career with a company that values teamwork, integrity, technical excellence, and long-term success, we'd love to hear from you.