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Field By Pongsiri Trivittayasil 2026-09-21 · 7 min read

Progress Photos as Site Diary: Your Dispute Protection

A photo taken today is your strongest evidence tomorrow. Learn how on-site progress updates become a timestamped, dispute-proof project record.

Progress Photos as Site Diary: Your Dispute Protection

Why is a progress photo stronger evidence than a verbal site update?

Most contractor disputes come down to one question: what was the state of work on a specific day? A phone call, a LINE message, or a verbal update at a site meeting tells you what someone remembered — not what the site actually looked like. A dated photo taken at the task location shows the condition of work at the moment of capture, with no interpretation required. For Thai SME contractors, disputes over damaged finishes, uncompleted scope, defective materials, and delayed payment claims all hinge on this same evidence gap. The contractor who has a timestamped photo of the concrete pour before backfill, the tile floor before furniture arrived, and the MEP rough-in before wall closing has the answer ready. The contractor who relied on voice notes and verbal reports is left arguing from memory against someone else's memory.

What should every on-site progress update capture?

A useful progress photo is not a wide-angle shot of the whole site taken from the entrance. It is a focused photograph of the specific task being updated, captured at the moment you log the percentage complete. The most useful shots include the condition of the completed scope — a concrete surface, tile alignment, or pipe run position — the materials being installed with brand and grade markings visible where possible, the site conditions at that moment including water, debris, or weather effects, and any pre-existing damage spotted before your crew worked in that area. Logging these through the on-site progress updates in SiteBoard ties each photo to a named Gantt task with a timestamp and the percentage logged. That link transforms a phone camera roll into a traceable, task-by-task project record.

A worked example: a tile dispute on a Bang Na townhouse renovation

Khun Arunee managed a townhouse renovation in Bang Na worth 1.4 million baht. On week six, after her tile crew finished the second-floor bathroom, the owner found a hairline crack across two floor tiles and claimed the contractor's team caused it through careless installation. Arunee opened the on-site progress updates from the completion day: three photos showing clean, uncracked tiles immediately after grouting, logged at 100 percent on the bathroom floor task in the Gantt planning view. A follow-up update two days later, when the team returned for toilet installation, showed the same tiles still intact. The crack had appeared only after the owner's removal crew moved heavy furniture through the room. With a timestamped photo trail tied to a specific Gantt task and date, the origin of the damage was unambiguous and the dispute was settled in a single meeting.

When should you capture photos beyond the regular update cycle?

Regular weekly updates cover the schedule, but some moments demand an immediate photo regardless of where you are in the update cycle. Photograph before your team starts in any area showing pre-existing damage — scratched flooring, cracked walls, or stained ceilings. Photograph every material delivery on arrival: show the packaging condition and any visible damage before signing the delivery receipt. Photograph work that will be hidden or covered within hours — pipe runs before a slab is poured, rebar before concrete, waterproofing membrane before screed goes over it. Photograph completed work before the next trade comes in and uses the space. These are the moments where a missing photo creates a gap that cannot be reconstructed later. A dated photo taken now costs nothing; a dispute without supporting evidence can cost far more.

How does linking photos to the Gantt planning view strengthen your record?

A folder of site photos organised by date is useful. A set of on-site progress updates linked to specific Gantt tasks is significantly stronger. When each update is attached to a named task with a defined start and finish date, you can show not just what work looked like on a given day but which task it belonged to, what percentage was complete at that moment, and how that task sits in the project sequence. If a dispute later questions whether work was completed before or after a weather event, a material delivery, or an owner visit, the Gantt planning view timeline answers the question precisely. SiteBoard's on-site progress updates attach each photo to the task automatically — the photo carries the task name, percentage, and timestamp together. That combination is what project managers mean by a contemporaneous site record.

Does sharing the owner sharing link reduce the risk of disputes?

Sharing a live progress view with the owner through the owner sharing link changes the nature of disputes before they can start. When the owner can see the Gantt and the latest progress photos in real time, there is little room for a later claim that work was completed at a different time or in a different condition than the contractor states. The owner who saw bathroom tiles logged at 100 percent on Thursday cannot credibly argue on Monday that the work was never properly done. Transparency through the owner sharing link does not protect against every dispute — a photo shows a finished floor but not who damaged it after handover — but it removes the most common category of claim: the assertion that the contractor cannot prove the scope was completed as described. Owners who follow progress live also tend to raise concerns earlier, when corrections are still straightforward and low-cost.

Building the daily site diary habit your team will actually keep

The most common reason a photo record fails is inconsistency, not poor quality. A diary with solid entries four days out of five is more useful than a perfect diary abandoned when the project gets busy. A practical minimum is one on-site progress update per active task per week, plus a photo at every task completion milestone. Using the mobile update in SiteBoard, a foreman logs percent complete and attaches a photo in under two minutes per task — the same result as a formal site diary, without the clipboard. Start the habit at project mobilisation, before the first concrete is poured or the first wall is opened. A photo record that begins on day one is worth many times the record someone tries to reconstruct after a problem surfaces. The earlier the habit forms, the fuller the trail.

FAQ: What makes a construction photo useful as evidence?

A photo is most useful as evidence when it is tied to a date and time you did not set yourself, shows the subject clearly enough to assess the condition, is linked to a specific task or location, and forms part of a sequence showing before, during, and after the work. The automatic timestamps from SiteBoard's on-site progress updates meet the first condition. Meeting the rest is a matter of habit: get close enough to show the surface quality or joint condition, take one wide shot and one close shot for every major task, and label the update so a reader six months later knows the room, floor, and trade. A clear smartphone photo with this routine behind it is sufficient for the large majority of contractor disputes in Thailand. The camera matters less than the consistency.

FAQ: How long should you keep progress photos and site records?

Thai construction contracts typically include a defect liability period of one to two years after handover, during which the owner can raise defect claims and the contractor is expected to rectify them. Keep the full project record — progress photos, Gantt update history, and task logs — for at least the entire defect liability period, plus two additional years in case a dispute is raised late. For projects involving structural work or anything where a defect could affect safety, four to five years is a sensible minimum given the applicable statute of limitations under Thai civil law. Progress updates stored in SiteBoard remain accessible for the life of your account, making long-term retention practical without managing a local backup drive or external storage.

FAQ: Is a smartphone camera good enough for site documentation?

Yes, for the vast majority of contractor disputes. The legal and commercial weight of a photo depends on when it was taken and what it clearly shows — not on resolution or professional quality. A clear shot taken on a mid-range smartphone and logged through a consistent on-site progress update routine outperforms a set of high-resolution images taken irregularly with no link to a specific task date. Practical habit matters far more than equipment. Where image quality genuinely matters is in documenting specific defect conditions — a hairline crack in a structural element or a pattern of floor settlement — where a close-up in good light is needed. For those cases, take two or three photos at different distances to ensure at least one is usable. For everything else: point, shoot, log, and keep going.

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