Mechanical Estimator — Design-Build for Major Projects

GBA; Lenexa (KS); On-site; USD 70,000 - 100,000; Full time

Job summary

GBA Builders is seeking a Mechanical Estimator to support our Estimating & Engineering Department. In this role, you will provide constructability reviews, cost estimating, and scheduling support for major design and construction projects across commercial, industrial, life sciences, medical, and mission-critical industries.

This position requires travel to project job sites, some of which are security-regulated facilities, so a clean background check and a valid driver’s license are required

Qualifications

• Bachelor’s degree in Construction or related engineering field, OR Journeyman/Master in Plumbing or HVAC, OR 7+ years of mechanical estimating experience.
• Field experience in mechanical installation projects preferred.
• Minimum 3 years of conceptual estimating and design-build estimating experience with a mechanical contractor.
• Strong proficiency with digital take-off and estimating software.
• High-level understanding of project scopes, direct and indirect costs, and pricing.
• Proficiency in Microsoft Suite and scheduling software.
• Familiarity with construction scheduling and LEED requirements.
• Strong communication skills for both internal and external collaboration.
• Initiative, professionalism, and ability to manage changing priorities and deadlines.

Responsibilities

• Assist proposal teams on major projects across all programs and GBA companies.
• Work with Project Management and Design teams during buyout and pre-construction processes.
• Attend Charrette and design reconciliation conferences on projects over $5M (or as assigned).
• Develop estimates, budgets, quantity surveys, and proposals accurately and competitively.
• Cultivate subcontractor and supplier relationships, including seeking new partners and reviewing scopes of work.
• Assist in creating project schedules for bids and pre-construction planning.
• Participate in pre‑bid conferences, site visits, bid day processes, and proposal submissions.
• Build and maintain relationships with facility managers and construction owners.
• Review and interpret plans, specifications, and schedules.
• Collaborate with Project Managers and Executives to finalize estimates and proposed schedules.

Skills

Digital take-off proficiency

Estimating software

Microsoft Office

Scheduling software

Construction scheduling

Effective communication

Education

Bachelor’s degree in Construction or related engineering

Journeyman/Master in Plumbing or HVAC

7+ years mechanical estimating experience

Tools

Digital take-off software

Estimating software

Scheduling software

Microsoft Excel

Job description

GBA Builders is seeking a Mechanical Estimator to support our Estimating & Engineering Department. In this role, you will provide constructability reviews, cost estimating, and scheduling support for major design and construction projects across commercial, industrial, life sciences, medical, and mission-critical industries.

This position requires travel to project job sites, some of which are security-regulated facilities, so a clean background check and a valid driver’s license are required