Our Team
We do one thing exceptionally well: precise commercial construction estimating and takeoffs. At Commercial Estimating, we make sure every estimate is prepared by seasoned professionals, double-checked, and verified to give contractors confidence in budgeting and bidding. Our team combines commercial project experience, industry certifications, and a commitment to accuracy to support successful project planning.
Experience: Over 30 years in commercial construction estimating, spanning office complexes, retail centers, and multi-use facilities. Expert in scope alignment, cost validation, and multi-trade coordination.
Certifications: Certified Professional Estimator (CPE), LEED Green Associate, Project Management Professional (PMP)
David L. Harrington, Director
Experience: 20+ years guiding contractors through preconstruction budgeting and bid preparation. Focused on healthcare, educational, and commercial high-rise projects
Certifications: Project Management Professional (PMP), Professional Certificate in Construction Estimating (PCSE)
Vanessa M. Ortega, Preconstruction Estimator
Trade Specific Commercial Estimators
Experience: 15 years of preparing detailed commercial takeoffs across mechanical, electrical, and structural trades. Expert in unit cost analysis and market pricing validation.
Certified Cost Professional (CCP)
Marcus J. Ellison, Multi-Trade Estimator
Experience: Specialist in commercial foundations, structural steel, and concrete systems. Experienced in large retail and institutional projects
Certified Professional Estimator (CPE)
Samantha K. Li, Senior Estimator
Quality Assurance & Estimate Review
At Commercial Estimating, every estimate passes through independent QA review, ensuring your numbers are reliable for bids and budgets.
Experience: 18 years in commercial project cost verification. Oversees review of assumptions, quantities, and pricing for all trades.
Certified Cost Engineer (CCE), Royal Institution of Chartered Surveyors (RICS)
Jordan P. Simmons, Lead QA Estimator
Experience: Focused on auditing commercial estimates for scope completeness, pricing consistency, and bid readiness.
Certified Professional Estimator (CPE)
Alicia R. Vega, Senior Estimate Auditor
