Contractor bids should be compared on the same scope.
A side-by-side total is useful only when each contractor is pricing the same work, carrying realistic allowances, and making the same major assumptions.
CostCheckGPT calls this scope normalization.
Every contractor has a different way of writing an estimate.
One contractor may include permit fees. Another may exclude them.
One contractor may include painting after electrical and plumbing work. Another may stop at drywall.
One contractor may include $12,000 for finish materials. Another may carry $5,000.
The bids can describe the same renovation and still represent different amounts of work.
A useful comparison has to separate those differences.
| Category | Bid A | Bid B | Bid C |
|---|---|---|---|
| Stated total | $94,500 | $105,000 | $82,000 |
| Demolition | Included | Included | Excluded |
| Permits | Included | Included | Excluded |
| Tile allowance | $8,000 | $9,000 | $3,500 |
| Painting | Included | Included | Excluded |
| Cleanup | Included | Included | Unclear |
| Normalized exposure | $94,500 | $105,000 | $96,000 to $104,000 |
Bid C begins as the lowest number.
Its exclusions and lower allowance create additional expected exposure.
The normalized comparison gives the owner a clearer view of what each contractor is actually offering.
Scope normalization is the process of putting contractor bids onto the same basis of comparison.
The stated totals remain visible.
The comparison also accounts for differences in included work, exclusions, allowances, owner-supplied items, and major assumptions.
This helps reveal whether a price difference is coming from contractor pricing or from different definitions of the project.
CostCheckGPT is being built to organize multiple contractor bids into a consistent structure.
The planned comparison identifies:
The goal is to help the owner understand the offer behind each number.
CostCheckGPT is currently in development. Join early access to be notified when bid comparison opens.