AI for quantity surveyors

14 Jul 2026 · 1 min

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1:29

In this promotional video, William Doyle MRICS explains how traditional manual reviews of site diaries capture only about 60% of legitimate change events, leading to significant missed revenue on construction projects. He illustrates the financial impact with a £5 million project example, where 10% variations could mean £200 k of lost revenue, turning a 5% margin into a 9% margin – an 80% profitability boost. The solution presented is a QS AI Agent embedded within the Gather platform. The agent continuously scans site notes, resource reports, weather logs, and progress updates in real time, interpreting them with the expertise of a senior quantity surveyor. It tags and documents commercial events as they happen, delivering alerts within contractual windows. The AI is trained on the firm’s contracts, methods, and data, integrates seamlessly without disrupting existing workflows, and augments rather than replaces the commercial team, providing “super‑human” reach to capture revenue opportunities that would otherwise be missed.

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Manual diary reviews only capture 60% of legitimate change events, the rest buried under sheer workload and time pressures. On a typical £5 million project with the standard 10% variations, that's £200,000 in missed revenue. Revenue that turns a 5% margin project into a 9% margin project. That's an 80% improvement in profitability. And yet those opportunities slip by because no human team can review every site diary, every detail, all in real time. With our QS AI agent, the opportunities, they find you. It lives inside Gather, scanning every data point the moment that it is captured. Site notes, resource reports, weather logs, progress updates. It interprets them with the precision of a senior quantity surveyor that never sleeps. It doesn't wait to dig through the site diary weeks after. It interprets the commercial event as it happens. It tags it, documents it, and puts it in your hands while you've still got the contractual window to act upon it. It's trained to use your contracts, your methods, your data, and it's wired directly into the platform that you already use. It won't disrupt your workflow, and it doesn't replace your commercial team. Instead, it gives them superhuman reach. Every day of manual review is potential revenue slipping away. The moment to recover value is now with our QS AI Agent. You will see it in black and white while you still have the time to do something about it.