Spot it. Fix it. Prove it.
Consteng gives your engineers phone checklists for every stage, uses AI to spot defects and safety risks in site photos, tracks every snag to closure with photo proof, and keeps permits and safety audits in order.
Inspection report · Level 4
0 snags raised · 0 critical open · 0 closed with proof
- 1
Edge protection missing
Slab edge, grid C4-C6
Safety · Critical- Shuttering subcontractor
- Due Today 12:00
Scanning photo - 2
Worker without harness near opening
Grid B3
Safety · Critical- Site safety officer
- Due Immediate
Scanning photo - 3
Honeycombing on column C5 surface
Column C5, level 4
Quality · Major- Concrete contractor
- Due 17 Oct 2026
Scanning photo - 4
Rebar cover blocks missing
Beam B2-B3
Quality · Major- Steel fixing contractor
- Due Before pour, 15 Oct
Scanning photo
The inspection walk
Six stops. One walk. Every issue closed with proof.
Consteng follows the route your engineers already walk each morning, from the stage checks at the gate to the report on the client's desk.
STOP 01 / 06
Inspection Checklists
Check each stage before the next one hides it.
Excavation, foundation, shuttering, reinforcement, concreting and finishing checklists, completed on a phone with photos, grid location and time. A failed line becomes a snag and can hold the pour.
- Hold points that block release until signed
- Photo required on every fail
- Works offline in basements and cores
Stage 4 · Reinforcement
Beam B2-B3 · Level 4 · Tower B
Bar diameter and count as per drawing
S-204 Rev CLap length at 50d, staggered
IS 456 cl. 26.2.5Stirrup spacing at 150 c/c near supports
S-204Cover blocks at 1 m spacing, 25 mm cover
IS 456 cl. 26.4Snag raised · photo attachedGrid B2-B3 · 10:41 · to steel fixerFormwork cleaned, no debris inside
QAP 7.3Electrical conduits fixed before pour
MEP sign-off
Location and time stamped · saved offline
STOP 02 / 06
AI Defect Spotter
The AI flags. Your engineer decides.
Every site photo is reviewed for honeycombing, cracks, missing cover blocks and poor finishing, and for safety risks like missing guardrails, no helmet or harness, and open edges. Each flag waits for a qualified engineer to confirm it.
- Boxes drawn on the photo, with a match score
- Confirm opens a snag, reject is recorded
- Safety flags jump to the top of the queue
Flags for review
1 confirmed- Quality
D1Honeycombing
Column C5 surface
91% matchConfirmed · snag created - Safety
D2No harness near opening
Grid B3
88% match - Safety
D3Unprotected slab opening
Grid B3-B4
79% match
STOP 03 / 06
Snag List
No snag closes without a closure photo.
Every snag carries the photo, the exact location, an owner and a due date. Subcontractors upload fixes from their own phones, and overdue items climb the escalation ladder automatically.
- Before and after photos side by side
- Subcontractors see only their own snags
- Escalation from engineer to project manager
| Snag | Owner | Due | Proof | Status |
|---|---|---|---|---|
Rebar cover blocks missing SN-1184 · Beam B2-B3 · L4 · Major | Steel fixing contractor | 15 Oct | Open | |
Honeycombing on column C5 SN-1183 · Column C5 · L4 · Major | Concrete contractor | 17 Oct | Open | |
Edge protection missing SN-1182 · Grid C4-C6 · L4 · Critical | Shuttering subcontractor | 14 Oct | Closed | |
Plaster hollow sound on wall SN-1176 · Flat 302 · L3 · Minor | Finishing contractor | 11 Oct | Overdue Escalated to project manager | |
Waterproofing lap not sealed SN-1169 · Terrace · Tower A · Major | Waterproofing vendor | 09 Oct | Overdue Escalated to project manager | |
Door frame out of plumb SN-1158 · Flat 204 · L2 · Minor | Carpentry contractor | 08 Oct | Closed |
STOP 04 / 06
Safety Audits and Toolbox Talks
Audit every site the same way. Brief every crew every day.
Scheduled safety audits give each site a weighted score you can compare across the portfolio. Daily toolbox talks record the topic, the language and every worker who signed in.
- Critical findings can stop work in a zone
- Scores by site, contractor and category
- Attendance by signature or group photo
Portfolio safety score
81/100
- Tower A · Residential92
- Tower B · Residential78
- Podium and parking64
- Villa cluster, phase 288
7 / 9
Scaffolding
11 / 12
Electrical
5 / 8
Housekeeping
Working near slab edges and openings
Led by the site safety officer, in Hindi and Marathi
46/52
workers signed in
- Guardrail before stripping edge shutters
- Harness hooked to a rated anchor
- Cover or barricade every opening
STOP 05 / 06
Permit to Work
High-risk work waits for a signed permit.
Permits for work at height, hot work, confined spaces, excavation and lifting. Each one lists its precautions, collects approvals in order and closes when the area is handed back at the end of the shift.
- Precautions ticked and photographed
- Requester, safety officer, site in-charge
- Clash warnings between nearby permits
Work at height
Level 4 slab edge · grid C4-C6 · 6 workers
Valid from
14 Oct · 08:30
Valid until
14 Oct · 18:00
Precautions confirmed
- Full body harness, double lanyard
- Lifeline anchored to column C5
- Guardrail and toe board at edge
- Area below barricaded
- Workers fit for height work
Approval chain
Requested
Shuttering supervisor · 07:52
Safety check
Site safety officer · 08:10
Approved
Site in-charge · 08:18
Closure
Pending at end of shift
Permit active
Hot work near this zone is blocked while active
STOP 06 / 06
Quality Reports
Reports built from evidence, not from memory.
Weekly and monthly reports for clients, consultants and management, with trends by contractor and site, first-time pass rates and the photos behind every closed snag.
- Scheduled PDF reports
- Contractor scorecards
- Read-only client portal
Weekly quality report
Tower B · 06 Oct to 12 Oct 2026
Snags raised
56
Closed
43
Avg. closure
2.4 d
First-time pass
86%
Snags by contractor
- Concrete11/14
- Steel fixing10/11
- Shuttering9/9
- Finishing9/16
- Waterproofing4/6
First-time pass rate, 8 weeks
Life of a snag
From a red circle to a green tick.
Every issue on site follows the same six steps, and every step leaves a record with a name, a time and a photo.
- 1
Spotted
Checklist fail, AI flag or a direct photo
- 2
Assigned
Owner and due date, notified on their phone
- 3
Work stopped
Critical safety items pause work in the zone
- 4
Fixed
Owner uploads the fix photo from site
- 5
Verified
Inspector accepts the closure photo
- 6
Reported
Before and after go into the weekly report
On the walk
Everyone who signs the site register.
Each person sees what they are responsible for. Engineers walk, safety officers stop work, subcontractors fix, clients read.
Site engineers
Complete stage checklists, raise snags in seconds and release pours on evidence.
Quality managers
Set checklists and hold points, review AI flags and track first-time pass rates.
Safety officers
Run audits, issue permits, stop work on critical hazards and record toolbox talks.
Builders and developers
See every tower and site in one place, with scores you can compare.
Project management consultants
Get read-only access to the reports and snags that matter to the client.
Subcontractors
Receive only their own snags, upload fix photos and see due dates on their phones.
Safety and accuracy
Clear rules for an AI on a construction site.
A tool that walks a site with your people has to be honest about what it does and what it does not.
The AI flags, people decide
Possible defects and risks are flagged for qualified engineers and safety officers, who confirm and decide what happens.
Support, not replacement
Consteng supports safety work. It does not replace site supervision, safety officers or statutory inspections.
Photos for safety, not surveillance
Worker photos are used only for safety and quality records, never for disciplinary surveillance.
Your data stays yours
Project data belongs to your company. It is encrypted in transit and at rest, and it is never sold.
Plans
Priced per project, per month.
Unlimited site users on every plan. Engineers, safety officers and subcontractors never cost extra.
Site
1 project
$79
per project / month
Billed monthly
- Inspection checklists for every stage
- Snag list with closure photos
- Toolbox talks and attendance
- Offline site app, unlimited site users
- Subcontractor snag access
Projects
Up to 10 projects
$149
per project / month
Billed monthly
- Everything in Site
- AI Defect Spotter on every photo
- Scheduled safety audits and scores
- Permit to work with approval chains
- Weekly and monthly quality reports
Enterprise
Unlimited projects
Custom
volume pricing per project
- Everything in Projects
- Client and consultant portals
- Custom checklists and audit templates
- API and single sign-on
- Dedicated onboarding for every site
Questions
Asked at the site gate.
Short answers to what engineers and safety officers ask before their first walk.
Yes. Checklists, snags, photos, audits and toolbox talk attendance are saved on the phone and sync automatically when signal returns. Basements, lift cores and upper floors are covered.
It flags possible defects and safety risks and shows how closely each one matches known examples. It never acts on its own. A qualified engineer or safety officer confirms or rejects every flag, and rejected flags help tune what you see on your projects.
Subcontractors can see their own snags and upload a fix photo. Closing is reserved for the inspector who raised the snag, or someone you nominate, after they accept the closure photo.
Yes. On the Projects and Enterprise plans you can share PDF reports or give clients and consultants a read-only portal limited to the projects and items you choose.
The site app and toolbox talk notes are available in English, Hindi, Marathi, Gujarati, Tamil, Telugu, Kannada and Bengali. Checklist lines can be written in any language.
Most teams walk their first site the same day. Add a project, upload floor plans, pick the stage checklists and invite engineers by email. We help set up your first three sites during the free trial.
Handover · all markups closed
Every circle
drawn in red
ends in green.
Write down three sites you are running right now. We set them up with checklists, the snag list and the AI Defect Spotter, and you walk them free.
- All modules included
- No card to start
- Site app works offline