AI for estimating and take-off

Estimating is where a contractor wins or loses its margin before anyone sets foot on site, and most of it is still done by hand. Measuring from PDFs, re-typing quantities into a spreadsheet, pricing from whatever rates were used on the last job, and reading hundreds of pages of specification, preliminaries and contract amendments against a return date. The judgement in that work is valuable. The mechanics are not, and they are where both the hours and the errors go.

We automate the mechanical parts of estimating and leave the judgement with your estimators and quantity surveyors. Tender packs are read and summarised, with the employer’s requirements, preliminaries and contract amendments that carry cost or risk pulled out and flagged. A first draft of the qualifications and clarifications list is prepared for the estimator to edit. Measured quantities are structured into a bill, priced from your own rate library rather than from memory, and rolled up into a tender summary that lays out preliminaries, overheads and profit and contingency the same way every time.

We build take-off software ourselves, which is the reason this service exists. Metric Takeoff, part of the Construction Metric family that AI Metric builds and operates, measures lengths, areas and counts from tender PDFs and DXF drawings in the browser. It snaps to the real geometry in the drawing, groups items into NRM2 work sections, prices them from a reusable rate library keyed by cost code, and exports the priced bill to a spreadsheet with a reference back to every drawing. It is in private beta with invited teams. We mention it not to steer you towards it, since first projects are tool-neutral, but because building it taught us exactly where automated take-off goes wrong: a mis-set scale, part of a sheet drawn at a different scale, and a revised drawing that quietly invalidates measurements taken from the old one.

That is also why we are careful about what we promise. Measurement can be automated where the result can be checked: snapping to the lines on the drawing, measuring an enclosed room in one click, and quantities that recalculate themselves the moment a wrong scale is corrected. Every quantity stays linked to the mark it came from, so a checker can see where any number in the bill was measured. Whoever you work with on this, ask how a reviewer checks each number. If the answer is that they do not need to, keep asking.

The same thinking carries on after the contract is awarded. Valuations, variations, daywork and cost reporting all depend on quantities and records that someone can stand behind months later. We come from the commercial side of delivery as well as the site side, with commercial management and dispute resolution behind the founder’s twenty years in Tier 1 delivery, so we build for the moment a number is challenged, not just the moment it is produced. Where your site records already come through WhatsApp, the same record that writes the daily diary can support a daywork sheet or a variation claim.

Like everything we do, it starts small. One workflow, measured before and after, live on real work in around six weeks: often the tender pack review, or the step from measured quantities to a priced bill. If CostX, Bluebeam or another tool you already own is the right home for the work, we build around it rather than replacing it, and we take no commission from any software vendor.