Skip to tool
ecech.
🏠 Home & Construction

Compare Contractor Scope, Allowances and Stated Totals Side by Side

Level itemized bids without pretending the cheapest stated total is the best contract.

Drop or choose a file up to 2 MB. Its contents replace the main text input; the filename alone is never treated as data.

Reviewable output

Processed

Warnings / conflicts

Output state

Advertisement

How the calculation works

Local inputboundedPer-item ruledeterministicArtifactcopy / download

How to Use This Tool

Level itemized bids without pretending the cheapest stated total is the best contract. Compare contractor quote line items by scope, total stated amounts, identify missing scope and allowances, and export an apples-to-apples review table.

The work this page finishes

Contractors often group the same project differently, so comparing only the bottom line hides omitted scope and allowance uncertainty. The row-preserving workspace makes a correction repeatable without rebuilding a prompt or transmitting the source file.

Rows or choicesValidate every itemReview and export
The fixture compares two contractors over three scopes and exposes Alpha's missing painting line plus one allowance.

Deterministic workflow

Group entered line items by contractor and exact scope label, total stated amounts, mark every missing contractor-scope cell and count user-declared allowances. This page accepts at most 5,000 records and 2 MB of text; rejected items retain their row references while valid items remain available.

Why a dedicated interface helps

Use the matrix to ask clarifying questions and align scope; do not infer quality, licensing, schedule, warranty or the lowest final cost from stated amounts alone. Immediate recalculation and a stable export are useful when the same rule must be applied consistently across a list instead of explained one item at a time.

Assumptions

  • Amounts use one currency and exclude unknown change orders.
  • Matching scope labels mean comparable work.
  • Allowance is explicitly marked in the fourth column.

Retain the original source until the destination accepts the result; processing stays in this tab, although the device and installed extensions remain part of the user's security boundary.

Limitations and review boundary

It cannot read PDF quotes, normalize synonymous scope names, assess workmanship, verify credentials, price exclusions or recommend a contractor. No supplied URL is requested and no pasted markup or code is executed; output is inserted through text-only DOM operations.

Verification and provenance

The implementation was checked against U.S. Small Business Administration — Manage your business on 2026-08-26, with fixtures for a known answer, an invalid input and a batch-specific edge condition. The fixture compares two contractors over three scopes and exposes Alpha's missing painting line plus one allowance.

Sources & assumptions

Tool Spec v2 · verified 2026-08-26. Platform rules and fees can change; the editable inputs remain authoritative for your account.

Official references

Model assumptions

  • Amounts use one currency and exclude unknown change orders.
  • Matching scope labels mean comparable work.
  • Allowance is explicitly marked in the fourth column.
  • It cannot read PDF quotes, normalize synonymous scope names, assess workmanship, verify credentials, price exclusions or recommend a contractor.
Advertisement

Frequently Asked Questions

What does Contractor Quote Compare complete?
It applies the stated comparison rule to contractor quote compare inputs and produces the reviewable output shown above.
Why use a dedicated Contractor Quote Compare page instead of chat?
The Contractor Quote Compare workflow preserves ordering, applies identical validation on every run and creates an artifact without conversational drift.
Does Contractor Quote Compare send the input to ecech?
No. Contractor Quote Compare reads pasted or selected content inside the current browser tab and does not call an ecech calculation API.
What verifies the default result?
The fixture compares two contractors over three scopes and exposes Alpha's missing painting line plus one allowance.
When should I reject the output?
It cannot read PDF quotes, normalize synonymous scope names, assess workmanship, verify credentials, price exclusions or recommend a contractor.
Which reference supports Contractor Quote Compare?
The recorded Contractor Quote Compare reference is U.S. Small Business Administration — Manage your business, reviewed 2026-08-26.

Related tools in Home & Construction

Browse all Home & Construction tools
A handwritten note reading ecech.com resting on the keyboard used to build the site.

Made by one person

ecech. is not a content farm. Every tool here is written and checked by hand, one at a time, by someone who wanted the tool to exist and could not find a version that showed its working.

No accounts and no sign-in, and nothing you type reaches a server — every calculation on this page runs inside your browser. The ads are served by Google and do set their own cookies, which is set out in full on the privacy page. More about the site.