compliance case study

How timelapse cameras resolve subcontractor billing disputes

March 1, 2026

By Tom Vincent, Operations Manager

How timelapse cameras resolve subcontractor billing disputes

Illustrative scenario based on typical subcontractor billing disputes — not a specific Sitelapse client.

When a subcontractor claims they had completed foundation work that hadn’t been inspected, the project manager pulls up three weeks of timelapse footage in seconds.

The dispute is settled the same day.

The project

A 14-storey mixed-use development in a downtown core. Construction starts in April with a projected 28-month timeline — large enough that several trades overlap on site, which is exactly where billing disputes come from.

The problem

Subcontractor billing disputes are common on large commercial projects. A trade invoices for work the general contractor does not believe was finished on the date claimed. Without documentation, they become he-said-she-said arguments that delay payment and damage relationships.

The cost is rarely the disputed amount alone. It is the weeks of project-management time spent litigating it, and the delay claims that stack up behind it.

Under Ontario’s Construction Act prompt-payment rules, the window to formally dispute an invoice is short. Evidence you already have beats evidence you have to reconstruct.

The solution

Cameras are installed at three vantage points before groundbreaking. Every day of construction is captured automatically and timestamped. Nobody has to remember to photograph anything, which matters — the documentation people intend to keep is never the documentation that exists when it is needed.

The result

When the dispute arises, the project manager exports a 72-hour timelapse clip and shares it with both parties. The footage clearly shows the sequence of work and the dates it happened on. The dispute is resolved without legal involvement.

On a $180K disagreement, that is the difference between a phone call and a lawyer’s retainer.

Why timestamped footage settles things

Three properties do the work:

  • Continuous — it captures everything, not just what someone thought to photograph. Neither side can be accused of documenting selectively.
  • Timestamped — the date is recorded at capture, not asserted afterwards.
  • Third-party — neither party controls the record, which is what makes both parties accept it.

That combination is why timelapse documentation is increasingly used for dispute resolution on Canadian projects, and why insurers increasingly look favourably on documented sites.

A single avoided dispute usually covers the camera for the life of the project. We break those numbers down in our guide to construction camera costs in Canada.