WhatOnSite
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    Trusted through the entire building lifecycle

    A hidden stopcock can cost £20,000.
    Find it in 10 seconds.

    The building remembers, even when people leave. Managers go, contractors change, photos disappear — WhatOnSite keeps every pipe, stopcock, asset and document findable in seconds, not hours.

    Start free Watch a 2-minute demo

    10 sec

    Find hidden services

    Hours saved

    Every contractor visit

    Thousands

    Prevent costly mistakes

    A room mid-renovation with every wire and pipe still visible before the walls closeA plumbing manifold and copper pipe runs exposed against brick before the wall closes

    Real examples

    "The stopcock is behind the kitchen cupboard."
    "The fire alarm detector is inside the ceiling void."
    "The sump pump panel is in Basement Room 4."
    "The Wi-Fi router is above the ceiling speaker."
    Every building faces these problems

    These aren't rare events — they're inevitable

    Based on 15 years managing buildings.

    A leak starts.

    Where's the stopcock? Behind a kitchen cupboard. Every minute is more damage.

    Need to drill a wall?

    Nobody knows where the pipes and cables run behind it.

    Fire alarm fault.

    The hidden detector sits in a ceiling void — but which one?

    Sump pump fails.

    The control panel is in Basement Room 4. Finding it late means flooding.

    Wi-Fi stops working.

    The router is above a suspended ceiling, behind a speaker.

    The manager leaves.

    Years of building knowledge walk out with them.

    Every one of these becomes a 30-second answer with WhatOnSite.

    How it saves money

    Go straight to the answer

    No folder searching, no calling former staff, no opening walls blindly.

    Situation Without WhatOnSite With WhatOnSite
    Hidden stopcock30–60 min searching10 seconds
    Locate manifoldRemove cupboards, guessOpen room and see it
    Find pipesDrill carefully and hopeSee behind-wall photos
    Service equipmentFind manuals firstQR code opens everything
    New managerMonths rebuilding knowledgeAlready documented
    1WhatOnSite

    See behind walls years later

    Capture rooms during construction or renovation while services are still visible. Later, open any room and see exactly what's inside the wall.

    • Hidden pipes
    • Electrical cables
    • Drainage
    • Structural elements
    • Insulation
    • Ceiling voids

    The walls may be closed — but the knowledge stays.

    Exposed copper and PVC pipe runs inside stud walls before they're closed up
    2WhatOnSite

    Every asset has its own QR code

    A contractor scans the equipment in front of them and immediately sees everything about it — then updates the maintenance record before leaving.

    • Manuals
    • Previous repairs
    • Service history
    • Drawings
    • Spare parts
    • Warranty information

    No paperwork.

    A technician scanning a QR code sticker on a chiller unit to bring up its manual
    3WhatOnSite

    Before the contractor even arrives

    Instead of emailing folders, send one secure link. The contractor arrives already prepared.

    • Find the correct room
    • Navigate the building
    • Read manuals
    • See previous repairs
    • Find hidden services
    • Arrive prepared

    The first hour isn't spent looking for a plant room.

    A facilities engineer reviewing building records on a tablet in a plant room
    4WhatOnSite

    Ask your building

    Your AI assistant searches everything you've captured. Each answer includes the room, the photo and the document.

    • “Where's the stopcock?”
    • “Show me every sump pump.”
    • “When was this boiler serviced?”
    • “Who installed this AC unit?”
    A technician scanning an asset's QR code on a plant room panel with a phone
    Built for the entire building lifecycle

    The building changes. The knowledge shouldn't.

    Construction

    Capture hidden services

    Handover

    Preserve building knowledge

    Maintenance

    Find assets instantly

    Emergencies

    Locate critical controls

    Renovation

    See what's behind walls

    New managers

    Keep knowledge forever

    Enterprise

    Your building. Your server. Your app.

    Keep every sensitive drawing, document and photo on your own cloud or on-premise server. Own the software outright — no monthly subscription, no data leaving your estate.

    • Own your storage
    • Own the licence
    • SSO & integrations
    • No monthly fees
    Talk to us
    Copper and PVC service runs across a commercial building before the walls close
    Simple, transparent pricing

    £1,495 once. Own the software forever.

    One licence, every feature. Or £49 / month if you prefer. Your building data is always yours.

    Most Popular

    Building Knowledge Platform

    Manage your building

    Complete building management with maintenance, equipment, documents, issues and AI.

    £49/ month

    or £1,495 one-time licence

    Includes 12 months of updates. Optional annual support and updates available afterwards.

    What's included:

    • Documents
    • Problems / Issues
    • Maintenance
    • Assets
    • Contractors
    • Tasks
    • Reports
    • AI Assistant
    • Larger Cloud Storage
    Start Pro Trial

    30-day free trial · No credit card required

    Enterprise

    Enterprise Digital Twin

    Enterprise deployment

    Secure enterprise deployment with customer-owned storage, private cloud, SSO and enterprise integrations.

    Custom

    Everything in Pro, plus:

    • Customer-owned cloud
    • Private cloud
    • Local server
    • AI Assistant
    • SSO
    • Storage integrations
    • On-site setup
    • 360° capture service
    • Drone inspections
    • Staff training
    Contact Sales

    The building remembers,
    even when people leave.

    Find hidden pipes, stopcocks, equipment and documents in seconds — not hours.

    Get started free

    Find everything on site.