Tablet sign-off on slab sleeves and openings before the concrete goes in
TL;DR Pourcheck is a tablet app for the hour before a slab or wall pour. Engineers tick off every sleeve, conduit, insert and opening against the latest drawing revision, with photos, and the plumbing, electrical and structural leads all sign. Contractors and project managers pay per tower to stop drilling through fresh concrete later.
A missed sleeve in a slab is cheap to fix before the pour and expensive after it. Someone has to core through concrete, sometimes cutting rebar, and the plumber and electrician lose days arguing about whose drawing was out of date.
No public figure exists for what this costs Indian projects.
The wider evidence points the same way though. A 2025 study of Indian case projects credits coordinated design models with cutting design errors by about 30% and RFIs by about 25%, and its survey puts rework-cost savings at 40–50%[1]. Yet the same paper puts India's BIM adoption at only 10–18%[1]. Most sites still build from printed 2D drawings, and the check before a pour is a walk with a marked-up sheet, if it happens at all.
Pourcheck turns that walk into a record. The site engineer opens the pour on a tablet and sees the current drawing revision for that bay, with every sleeve, box and insert as a checklist item. Each item gets a tick and a photo. The plumbing, electrical and fire-fighting leads sign in the app, and the pour can't be marked ready until all of them have signed or an exception is logged with a reason.
Afterwards the project manager can see, for every pour, who checked what and which drawing they used. When a clash turns up later the record shows whether it was a drawing error or a site miss.
The seed proposed live augmented reality laid over a BIM model. We reframed it, because with BIM used on perhaps one Indian project in six[1] an AR-BIM product serves very few sites, and accurate AR overlays need survey-grade positioning kit[2]. Pourcheck works from the drawings sites already have, and it can read a BIM model where one exists.
The site engineer uses it, but the main contractor or the developer's project management team pays. Pricing could be ₹15,000–40,000 a month per active tower (our estimate, to test). Project management consultancies are a second buyer, because pour sign-offs feed the quality reports they send to developers. A tower typically runs for 18–30 months (our estimate), so one sale lasts a good while.
Site teams carry phones and tablets as a matter of course now, and Indian site apps for daily reports and labour tracking have trained contractors to pay for software[3][4]. Developers face tighter delivery dates under RERA, so a week lost to core-cutting and rework shows up in their schedules.
There's no public figure for spending on pre-pour inspection tools in India. The closest evidence is the gap itself - BIM adoption of 10–18%[1], which means most projects lack a model-based check.
The adjacent signal is Indian site-management apps, which already sell to contractors[3][4]. That shows willingness to pay for site software, though not for this task.
Global AR layout tools overlay designs on site through a phone or tablet with a GNSS receiver, at centimetre accuracy, sold on subscription[2]. It suits surveyed infrastructure better than a slab full of sleeves. Indian site-management apps handle daily reports, materials and labour[3][4]. Some startups track progress with AI[5].
None of them focuses on the pre-pour sign-off between trades.
| Difficulty | Moderate (34/100) |
| Starting capital | ₹60 L–1.2 Cr |
| Time to launch | 6–9 months |
Building the app is not the hard part. Turning drawings into a checklist quickly is, because many sites still work from PDFs and scans. Getting three trades to sign before every pour also means changing habits that site managers defend fiercely.
No sector licence. Inspection software needs no approval, and engineers and the contractor stay responsible for the work.
Building this outside India? The categories above usually have a local equivalent, so check with your own regulator.
Don't let AI mark a pour ready or replace a sign-off. Engineers sign, and a missed item read wrongly from a drawing must never get through unchecked.
Want to work out the AI layer for Pourcheck? Talk to Yash →
Here's what can go south -
I'd say it's worth a shot if you've worked as a site or quality engineer and know how pours really happen. If you want to sell AR glasses then this is the wrong idea. First prove, on two towers over three months, that core-cutting incidents drop and engineers use it on every single pour.
Plan for roughly ₹60 L–1.2 Cr, mostly on product build, site pilots and sales to developers.
No licence. You need DPDP consent for worker data and written permission from developers to store their drawings.
Yes, slab openings get missed on building sites everywhere. Check local data protection law and whether developers there already use BIM tools.
The free Pourcheck validation kit has the line-by-line capital breakdown, the effort scoring, the rules checklist, a 14-day validation sprint with pass/fail targets, a 90-day launch plan, 10 interview questions for site and project teams, and 5 assumptions to test. Download the kit →
Thinking about building Pourcheck or something close to it? The make-or-break work is getting every trade to sign before every pour, even on a rushed day. If you need a hand with that, you know where to find me. Talk to Yash →
For illustration only. Names are fictional and ideas hypothetical; sourced facts are real but may be out of date. Nothing here is legal, financial or professional advice, and Yash Khatri is not personally liable for any use of it. Read the full disclaimer.