How to Read a Carrier's Estimate Against Yours, Line by Line

When a carrier's estimate comes back lower than what you wrote, the difference isn't random. It hides in the same handful of places every time. Here is how to read the two side by side and find it.

Start with the categories, not the total

The bottom-line difference tells you there's a gap. It doesn't tell you where. Break both estimates into categories and compare them one at a time: body labor, refinish labor, materials, parts, sublets, and not-included operations. The gap lives in the categories, so that is where you look.

Labor rate

Compare your posted rate against the rate on the carrier's estimate, line for line. A few dollars an hour doesn't sound like much until you multiply it across every labor hour on the job. Your rate is your business decision, backed by your costs and your certifications. Document it as one.

Labor hours

Same operation, different hours. The carrier may have written a tear-down or a refinish operation at fewer hours than the repair actually takes. The line looks covered, so this one slips past people. Check the hours, not just whether the line exists.

Materials

Look at how paint and materials were calculated. A flat allowance or a low materials rate rarely matches what the job actually consumes. The difference is real money on a paint-heavy repair.

Parts

Check for parts written at the wrong type or price, and for the small parts that get dropped entirely: clips, fasteners, and one-time-use hardware the OEM says can't be reused.

Not-included operations

These are the lines the platform doesn't add on its own. Cover car, corrosion protection, feather-prime-and-block, waste handling. If they were on your estimate and not on the carrier's, that is a gap worth documenting.

Document the reason, not just the difference

For every line where you find a gap, write down why that line belongs there and where the support comes from: the estimating guide, the P-pages, the OEM procedure, the position statements. The difference by itself is an opinion. The difference with a source behind it is a fact.

That is the mindset that gets shops paid. You are not arguing with the carrier. You are handing over the documentation, complete, so there is nothing left to argue about.

Reading two estimates line by line by hand is slow, and it is exactly what we built GuideCoat to do automatically. It compares the two, surfaces every difference, and attaches the documentation to each one. However you do it, the principle is the same: go category by category, and never let a real line go undocumented.