
Jack Williams
Top Rated
Build Smarter: Accurate Estimates, Seamless Takeoffs!
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Work experience
President
JW Construction • Full-time
Dec 2019 - Present • 6 yrs 9 mos
Founded and lead JW Construction Estimating LLC, a construction estimating firm serving general contractors, builders, and subcontractors across the US and Australia since 2019. Oversee end-to-end preconstruction estimating services including material takeoffs, cost proposals, schedules of values (SOV), and scope documents across residential, commercial, civil, and specialty trade projects. Manage a remote team of estimators delivering accurate, competitive, and timely bids that help clients win and execute projects profitably. Responsible for business development, client relationships, quality control, and overall operations of the firm.
Estimator
Fiverr • Freelance
Oct 2019 - Present • 6 yrs 11 mos
Construction cost estimator since 2019, specializing in preconstruction and estimating support for U.S. and Australian GCs, builders, and subcontractors. I deliver accurate one-page cost proposals, material takeoffs, labor/material breakdowns, and SOVs across residential, commercial, and civil projects. Trusted for fast turnaround and estimating accuracy on jobs ranging from single-family homes to multi-million dollar commercial builds.
Lead Estimator
CJR Construction Group • Full-time
Mar 2020 - May 2026 • 6 yrs 2 mos
I have been working with CJR Construction Group LLC for the past six years, providing professional takeoff, cost estimation, and project scheduling services. During this time, I have contributed to major projects including the Kansas City International Airport (KCI) New Terminal and the Eppley Airfield expansion in Omaha, Nebraska. My role involved preparing detailed quantity takeoffs, developing comprehensive cost estimates, coordinating with project managers and subcontractors, and building construction schedules to support successful project delivery.
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Rating Breakdown
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apollc

United States
I had a great experience with this construction estimating service provided by Jack. The estimate was detailed, accurate, and easy to understand, with the costs clearly broken down for labor, materials, and other project requirements. The team was professional, responsive, and took the time to make sure...
Seller's Response
wallboardsystem

United States
Jack did an outstanding job on my construction takeoff and estimate. His work was extremely accurate, detailed, and well-organized, with quick turnaround and excellent communication throughout the project. He caught important details that could have easily been overlooked and delivered a professional...
apollc

United States
Excellent construction takeoff service! The estimates were accurate, delivered on time, and helped us bid with confidence. Professional, reliable, and easy to work with. Highly recommended.
apollc

United States
Excellent construction takeoff service! The estimates were accurate, delivered on time, and helped us bid with confidence. Professional, reliable, and easy to work with. Highly recommended.

hghhhjj

United States
Worked with Jack (JW Estimating) on a commercial bid and honestly the level of detail was next level. I've done estimates myself for a while now, and there was so much in-depth work happening that I didn't even realize was doable — line items, breakdowns, ways of catching scope I would've missed on my...
Seller's Response
