Complaint Handling in Thai Care Homes: What to Have Ready

In October 2026 Thailand’s Department of Health Service Support (DHSS / สบส.) ordered on-site inspections at all 1,203 registered elderly care facilities nationwide, after complaints that residents at some centres had been unlawfully confined. The trigger — family complaints that went unaddressed — points directly at a gap many centres still carry: no formal complaint-handling system. This guide covers what inspectors expect to see and how to put it in place.

Why a Complaint System Is a Legal Requirement

Centres registered under the Health Business Establishments Act B.E. 2559 (2016) are required to protect the rights of residents and ensure that residents and their families can raise concerns without difficulty. During an inspection, DHSS assessors typically check for three things:

A complaint channel that families know about and can use
A documented process with defined response timelines
A log of complaints received and actions taken, ready to be reviewed on the spot

A centre with no system at all may be flagged even if it has never received a complaint — the absence of a system is itself a warning sign for inspectors.

Complaint Channels to Provide

Channels should be accessible to both residents and families and should allow anonymous reporting. For a small to medium-sized centre, the following combination works well:

A suggestion and complaint box in a common area, with paper and pens available
A direct phone number for the manager or senior nurse, shared with families in writing
A LINE account for the centre, where families can message privately at any time
A written complaint form for cases where a formal paper record is needed

These channels should be displayed visibly on-site and explained to families on the first day of admission. Record the channels in the service agreement so there is a signed acknowledgement.

The Five-Step Complaint Process

DHSS assessors look for a defined, repeatable process — not ad-hoc handling. A standard framework:

Receive — log the date, time, channel and full content of the complaint immediately.
Acknowledge — notify the complainant within 24–48 hours that the complaint has been received and is under review.
Investigate — gather information from the staff involved and review the relevant resident records.
Respond — communicate the findings and any corrective action to the complainant within 7–14 days of receipt.
Record and follow up — retain the complete file for at least three years and verify that the corrective action was actually carried out.

Response timelines by urgency

Urgent complaints (alleged abuse, assault, or a significant injury): respond within 24 hours and report to DHSS through the appropriate channel.
General complaints (food quality, cleanliness, activity scheduling): respond within seven days.

Documentation That Must Be Complete

Every complaint entry should include:

The name of the resident involved, where identifiable
Date, time and channel of receipt
Full description of the complaint
Name of the staff member responsible for follow-up
Date and summary of the investigation
Corrective action taken and outcome
Date the complainant was notified of the result

These records should be centralised and searchable — not split across paper binders, Excel sheets and LINE chats, which makes them nearly impossible to retrieve during an unannounced inspection. A resident-record system linked to a mobile staff app keeps every incident note in one place and ready to display immediately.

Reducing Complaints Through Proactive Communication

Centres that communicate regularly with families find that minor issues are resolved before they become formal complaints. Practical steps:

Send a brief weekly health update to families via LINE
Notify families immediately of any significant change in a resident’s condition
Hold a quarterly family meeting and keep written minutes

Transparent, proactive communication builds trust, reduces anxiety among families and demonstrates to DHSS that the centre treats resident rights seriously — not just when an inspector arrives.

To discuss how Caleo can help you centralise records and streamline compliance documentation, contact the team at /en/contact/