Our experts

The construction cost estimators who develop our line-item cost data, review our numbers, and write our cost guides.

Every cost guide on this site is written and reviewed by people with hands-on construction estimating experience. Our reports have been produced for homeowners, builders, and appraisers for nearly 20 years — and the names below are accountable for the numbers you read.

Rob Mackle

Founder & Lead Cost Estimator

Rob Mackle founded StartBuild and has spent more than 30 years in residential construction, the last two decades leading StartBuild's cost-estimating platform. He and his team have produced 90,000+ cost-to-build reports for 40,000+ customers across all 50 U.S. states and Canada.

30+ years Founder & Lead Cost Estimator, StartBuild

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