← Back to blog
case studymechanical contractorcertified payrollsubmittalsbid levelingconstruction ai

Case study: a mechanical subcontractor put AI to work across the office and recovered ~$80k of capacity a year

kjags advisors··2 min read

A commercial mechanical subcontractor recovered an estimated $80,000+ per year of team capacity — a conservative first-year value near $110,000 — after kjags advisors rolled AI out across the office and automated the paperwork-heavy parts of the business. The value figures are deliberately conservative: they price recovered time at $40/hour (well under real loaded cost) and count only what's live today.

The biggest lever: the whole office, not one tool

The largest single win wasn't a feature — it was adoption. About two dozen office staff now use AI daily inside their real work, supported by single sign-on and ongoing hands-on shadowing. Twelve minutes saved per person per day, across the team, is the foundation everything else builds on.

What we automated

WorkflowWhat the AI doesEstimated value
Certified payrollReads daily reports, makes prevailing-wage determinations, prepares filings — a rules engine that has made thousands of decisions4 hrs/week recovered ($7,700/yr)
Mechanical submittalsFull automation of the mechanical-side submittal workflow~$1,600/yr
Bid leveling + scope reviewCompares subcontractor bids and flags scope gaps and exclusions~$1,600/yr
Subcontract + PO generationDrafts subcontracts and purchase orders on demand~$4,800/yr
Project-manager appJob portfolio, LOI tracking, document distribution, manpower scheduling for the whole office~$9,600/yr
Historical-data pluginThousands of past jobs, RFIs, PCOs, submittals, and documents made searchable from a single prompt~$3,800/yr

The result

  • ~$85,000/year in recurring recovered time (conservative, at $40/hour)
  • ~$110,000 conservative first-year value including one-time build assets
  • Certified-payroll compliance that used to eat ~4 hours a week, now largely hands-off

The honest part

Every number here is a floor: $40/hour is below real loaded labor cost, and only workflows live today are counted — several more (scheduling, additional payroll processing, a submittal-review board) are built and coming online. AI didn't replace anyone; it took the repetitive paperwork off the team's plate so they could do more of the work that actually needs a person.

kjags advisors builds this kind of done-for-you automation into mechanical and specialty contractors' real workflows — including certified payroll and mechanical submittals. Book a call to see what it would look like for your shop.