​Customers and installers apply signatures directly (stylus or finger), bound to each specific document and section.

Every signature is date- and time-stamped, with immutable logs that record who signed, when, and against which job.

Once applied, signatures and dates cannot be altered. Signed sections are locked, with amendments requiring a new version and re-signing.

Customers must scroll through the full document before the signature field appears, ensuring they have seen, read, and understood each document.

Signature boxes are clear and accessible. All engineers have been trained and certified to guide customers through the process confidently.