How do you create estimates and quotations for a construction project?

You create estimates and quotations by keeping them on one thread that runs into the project — an abstract or detailed estimate becomes a quotation, an accepted quotation becomes a proforma invoice and then a live project, without re-typing anything. The point isn’t just a tidy quote; it’s that the number you quoted becomes the number you run against, so you can see estimate vs actual as the job runs.

When estimates live in a spreadsheet and the project lives somewhere else, nobody ever compares what was quoted with what was spent — so the same under-quoting repeats, job after job.

A quick figure early, a detailed one later

Abstract estimates give a heads-level number when a client first asks; detailed estimates give the line-by-line breakdown when the job firms up. Both come from the same system, so the early figure and the final quote are consistent.

From quotation to project, no re-typing

An estimate becomes a quotation you send; an accepted quotation flows into a proforma invoice and then the project. Nothing is re-entered, and the enquiry that started it — with its follow-ups and call logs — is part of the same thread.

Quoted vs actual, where you can learn from it

Because the won quotation becomes the project it priced, you can compare what you estimated against what the project actually spends as it runs. That’s how you find what you under-quoted — and stop repeating it on the next job.