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Junzhe S.
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Junzhe S.

Cost Estimator | Construction Takeoffs & Estimation | PhD

I provide fast and reliable quantity takeoff and construction estimation services for builders, contractors, and developers. I specialize in: - Quantity takeoffs from PDF drawings - Material takeoff for multiple trades (framing, drywall, finishes, electrical, signage, etc.) - Trade-based quantity breakdowns - Preliminary cost estimation when needed My workflow is designed to deliver accurate results with quick turnaround, typically within 24–48 hours depending on project size. Experienced in U.S. residential and commercial construction estimating, with a strong understanding of standard project structures and material takeoffs for ADA signage, plumbing, electrical, cabinetry, and renovation work. Whether you need a fast takeoff for bidding or detailed material quantities, I can help streamline your estimating process and support you in winning more bids. Feel free to reach out with your drawings or project details.

🇺🇸Emeryville, United States$30/hr100% JSS4.88 (11)Since Mar 2026

Earnings and projects

MRR
$4.1k

Last 6 months ÷ 6

World#7,722 / 412k
🇺🇸Country#2,347 / 62.1k
Revenue, last 30 days
$4.6k

Last 6 months: $25k

World#6,676 / 412k
🇺🇸Country#2,053 / 62.1k
Total earnings
$26k

Billed in all: $27k

World#121,215 / 412k
🇺🇸Country#20,609 / 62.1k
Per project
$647

$663 in the last 6 months

World#159,615 / 412k
🇺🇸Country#27,080 / 62.1k
Projects, last 6 months
37

Across 41 contracts

56% fixed44% hourly
World#1,842 / 412k
🇺🇸Country#351 / 62.1k
Projects in all
40

Across 46 contracts

61% fixed39% hourly
World#75,669 / 412k
🇺🇸Country#11,445 / 62.1k

Earnings, last 30 days

$27k+$4.6k earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$20.0k$22.5k$25.0k$27.5kOct 9Oct 24Nov 8

Skill rankings: #1 in 1 skill of 13

Rarest: top 0.77% in Bill of Quantity, of 390. Ranked by MRR among everyone on Upwork with the skill.

  1. 1STACK Takeoff & Estimating61 freelancers · 🇺🇸 #1Top 2%
  2. 3Bill of Quantity390 freelancers · 🇺🇸 #1Top 0.77%
  3. 3On-Screen Takeoff240 freelancers · 🇺🇸 #1Top 1%
  4. #4BIM Quantity Takeoff257 freelancers · 🇺🇸 #1Top 2%
  5. #5Cost Analysis305 freelancers · 🇺🇸 #3Top 2%
  6. #7Bill of Materials334 freelancers · 🇺🇸 #3Top 2%
  7. #7Budgeting & Forecasting Software202 freelancers · 🇺🇸 #6Top 3%
  8. #8Estimator609 freelancers · 🇺🇸 #2Top 1%