Quotes, jobs, money, safety — all in one place, with a UK-aware AI ops lead built in. Stop juggling six apps. Free forever for crews of 10 or fewer.
No more spreadsheets, group chats, and 4 different invoicing tools. CortexBuild Pro pulls your projects, money, team, and site safety into one place — and brings AI to every corner.
Describe a job in natural English — Cortex generates UK-realistic line items, quantities, and rates. Saves hours of pricing work. Try it →
Active, pipeline, closed — with milestones, photos, money, docs per project.
Live cashflow, invoices, AI-drafted chase emails. CIS deduction built in.
Weekly grid, one-tap approve, automatic CIS calc for sub-contractors.
Safety score, RAMS expiry watch, CSCS tracking, incident reporting.
Photo, receipt, voice note, check-in — all geo-tagged, all auto-filed.
Threaded comms with crew, client, subs. AI suggests responses.
Punch list with priority, photos, assignee. AI detects snags from photos.
Crew × day grid. AI suggests optimal allocation.
Low-stock alerts. AI forecasts what to order next.
AI-narrated business reports. Ready to email or print.
Not a chatbot. Cortex sees your live projects, cashflow, team, and deadlines — and uses that context in every interaction. From morning briefing to invoice chasing, it's already on top of it.
Cortex chases overdue invoices, summarises your day in 2 sentences, and keeps your RAMS up to date — so you can focus on the trowel.
AI flags margin slip the moment it happens. Material forecasts mean fewer surprise orders. Snag list goes from chaos to crisp.
For crews up to 10 — CortexBuild Pro is yours for £0. Unlimited projects, unlimited AI, real cloud sync.
No "trial period". No upsells you have to fight off. Just a generous free tier — pay only when you outgrow it.
Built for UK SMB contractors, not enterprise general contractors. Same depth, fraction of the cost.
CortexBuild Pro connects to the tools you already use. One-click setup, instant sync.
"The AI estimator changed everything. I used to spend half a Saturday writing quotes — now I'm at the pub by 11am. Margin's up 3% because Cortex catches things I'd miss."
"Cortex drafts polite chase emails the moment an invoice goes overdue. I just hit send. We've recovered debts we'd written off — and clients pay faster because they know we're paying attention."
" Genuinely the first construction app I've used that does what it says. The AI estimator alone saves me four hours every week.
Free forever for crews up to 10. Two-minute setup. No credit card.
Get started — it's free →