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Jack Williams
@jack_estimator
Top Rated
Build Smarter: Accurate Estimates, Seamless Takeoffs!
Pakistan
English
About me
As Lead Estimator at CJR Construction Group in Kansas City, I specialize in takeoff, cost estimation, and change order management across commercial projects — including major works at KCI Airport and Omaha Eppley Airfield.
Working alongside JE Dunn, Turner, Paric, Centric, and Clarkson Construction has given me a clear understanding of what serious contractors expect from their estimates. PlanSwift and Bluebeam are part of my daily workflow, and every deliverable is built to hold up at the bid table — any trade, any state.
When I'm not estimating, I'm probably losing a soccer match.
Skills
Jack Williams
$40/hour
Offline •
Average response time: 1 hour
See my services
Material Takeoff & Cost Estimation
I will do material take off and cost estimation for contractors
Material Takeoff & Cost Estimation
I will do material take off and estimation for owners
Want to work on an hourly basis?
Tell Jack Williams what you need.
$40
/
hourPortfolio
Work experience
President
JW Construction • Full-time
Dec 2019 - Present • 6 yrs 10 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.
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Estimator
Fiverr • Freelance
Oct 2019 - Present • 7 yrs
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.
1,244 Reviews
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
1-5 out of 1244 Reviews
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blakehenders787
United States
Jack was thrown into the fire over the past week with us :) I get probably 20 leads a week coming into the business, and even if we decline to pursue 75% of them, it still piles up when some of the projects are very involved to build estimates and scopes of work for. Jack was sent 3 projects with varying...
Seller's Response
Helpful?
hghhhjj
United States
Ongoing collaboration
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...
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apollc
United States
Ongoing collaboration
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...
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jacobkeslar
United States
Ongoing collaboration
We work with Jack frequently. He has allowed me to take my business to the next level by outsourcing all of our estimating which has saved me a tremendous amount of time. We frequently check Jacks work against our own takeoffs and his estimating work is always on par with where it needs to be. I highly...
Helpful?
mlpowell7877
United States
Ongoing collaboration
Excellent work on a very difficult and detailed material takeoff. This project required a high level of accuracy and organization, and they handled it extremely well. They not only completed the material takeoff, but also helped complete and organize our bidding workbook so it is ready for us to use...
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