Rescue workers from the Kusoldharm Foundation were call to the scene, a house in in Baan Borrae, at 12:30pm.
The boy accidentally fell into the well, located at a construction site in front of his home, which is being renovated into a shop.
A relative, a 30-year-old man, attempted to climb down and rescue him but was also unable to get out.
Rescue workers arrived and began pumping water out of the narrow, one-metre-wide well.
After nearly two hours of intense efforts, both were safely pulled out.
The boy had sustained a head injury and required three stitches. He was administered first aid before being transported to Vachira Phuket Hospital. Doctors have advised monitoring him closely for 24 hours.
The boy’s father explained that his son, who has autism and is non-verbal, often explores the area around their home. The well was covered with a cement sheet that had a crack, which gave way when Nong stepped on it.
“The relative who tried to help couldn’t lift him out, so we called the Kusoldharm rescue team. We are thankful for their quick action and dedication,” the father said.
The rescue operation has drawn praise for its success in preventing a tragedy.
Local authorities are urging residents to secure potentially hazardous areas, especially near construction sites, to avoid similar incidents in the future.