Corrections

We publish our sources and our cost model in full precisely so they can be checked. If a figure looks wrong, we want to hear about it — getting the numbers right matters more to us than defending them.

What’s worth flagging

How we handle it

Our cost model is versioned, and the version is stamped on every figure it produces. When a correction changes an assumption — a crew size, an hours estimate, a day rate — we update the model, re-run the affected markets, and the new version appears on the pages. Data corrections (a wage vintage, a regulation change) are refreshed against the source. We’ll tell you what we changed.

Send a correction

Use our contact page and choose “Data correction or methodology question.” The more specific you can be — the metro, the figure, and what you believe it should be — the faster we can check it against the source and fix it.

One thing we won’t do: quietly change a number to make a provider or an outcome look better. The model is the model, applied the same way to every market.