Margin-protection operating system

Protect margin on every job.

Capture field changes, evidence, approval status, and margin risk before profit leaks out of the job.

Built for $1M–$25M contractors
Mobile-first field capture
Weekly owner brief
app.contractoros
This week
Margin brief
$12,800
Waiting on approval
2
Jobs at risk
1
Changes not priced
$9,400
Protected this week
Next money-protecting actions
  • 01Get approval on Oak Street framing change
  • 02Price Smith Kitchen cabinet layout change
  • 03Upload tile evidence for Wilson Bathroom
The problem

Profit doesn't disappear. It leaks.

Owner-led contractors lose real money on jobs they thought were profitable — through field changes that never made it into the price, scattered evidence, and work that got done before approval.

Field changes never priced

Crew does the work. Nobody bills for it. Margin gone.

Evidence scattered

Photos in texts. Notes in heads. Nothing tied to the job.

Unapproved work happens

Owner disputes it later. You eat the cost.

Product

One operating system. Built around margin.

Capture Change

Field-grade mobile capture of every change in under 30 seconds — photo, note, labor, material.

Jobs

Every active job with contract value, approved/pending changes, projected margin, and risk status.

Evidence Vault

Every photo and note tied to the job and the change. Nothing lost in texts or group chats.

Margin Risk

Portfolio-wide view of where profit is compressing — before the job closes.

Weekly Owner Brief

Monday-morning summary of the dollars at risk and the next five actions to take.

Approval Tracking

Know exactly which changes have customer signoff and which are still exposed.

How it works

One simple loop. Run it on every job.

STEP 1
Capture
Field change logged in 20 seconds
STEP 2
Evidence
Photo + note attached to the job
STEP 3
Price
Labor + material impact
STEP 4
Approve
Track customer signoff status
STEP 5
Margin
See risk before profit slips
STEP 6
Brief
Owner gets a weekly summary
Why contractors use it

One missed change can wipe a job.

Most owners find more protected margin in their first two weeks than they ever expected — because the data was already on the job, just scattered.

  • Catch field changes before they leave the office as freebies
  • Stop disputes with photo + note evidence tied to every change
  • See margin risk at the portfolio level, not after the job closes
  • Give the owner one Monday brief instead of chasing PMs
EXAMPLE — OAK STREET ADDITION
Contract value
$185,000
Unapproved field changes
$12,800
Projected margin (today)
14%
Margin after approval
20%
Margin protected on this job
+$11,100
Built for

Owner-led contractors doing $1M–$25M a year.

Remodelers
Kitchen & bath contractors
Small general contractors
Roofing & exterior
Specialty trades
Design-build firms
Custom home builders
Light commercial
ContractorOS

Start protecting margin today.

Run ContractorOS on your active jobs. Find the leaks. Document the changes. Protect the margin.