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Article · 9 min read · August 11, 2026

How to Read an Insurance Estimate Line by Line

Scope, quantities, unit prices, depreciation and O&P: what to check on every page.

An insurance estimate can run dozens of pages. You don’t need to be an estimator to find the most common problems.

1. Scope

Check that every damaged room, roof slope and exterior wall appears. Missing areas are the most common and most expensive gap.

2. Quantities

Compare square footage, linear feet and roof squares with your own measurements. Our roof pitch and squares calculator can help with roofs.

3. Unit prices

Prices should reflect your area and the current market. Ask your contractor to flag prices that look low.

4. Depreciation

Look at the age and life expectancy behind each depreciation figure, and whether labor was depreciated.

5. Overhead and profit

If the repair needs a general contractor to coordinate several trades, O&P may be appropriate.

6. Code items and tax

Check for permits, Uniform Construction Code items and New Jersey sales tax on materials.

What to do next

List the differences, attach your evidence and send a supplement request. If the gap stays large, an estimate review or appraisal may help.

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