Capture and manage every variation from
contract start to contract end
schedule with one simple portal.
Start by building your cost breakdown in Excel. Then, add substantiation: drawings, specs, quotes, and more, directly into the claim. Finally, send your message via email using the built-in chat bar. No switching tools. No lost context. Just one seamless workflow, with every new revision and response logged.

Clients receive a secure link to the VO. No login, no friction. Every detail is laid out in one clean screen: pricing, substantiation, and programme impact. Download the full package instantly. Upload your own documents to support your response and reply directly via the message bar, with every action logged for a full audit trail.
Track every variation across your project in one clean view: status, value, client position, and action owner. Spot gaps, flag issues, and export reports in seconds.
Track live variation totals, agreed values, and forecasted final accounts across all projects. Instantly spot exposure, progress, and outliers. It’s your commercial position, visualised so you can act fast and stay on top of your accounts.

With the Sinq app, your operatives are able to provide feedback, changes or delays in real-time to the QS dashboard in the form of an RFI.


Ensuring any additional time requirements are accounted for and tracked clearly against each project with every impactful variation accounted for. Avoid non compensated preliminary costs through slippages by using SINQ.


Sinq enables customers to have full visibility of the proportions of variations against the agreed contract value. Effective management of these values ensures transparency, accurate budgeting, and alignment with project objectives.