Firefighters from Ryde and Sandown were alerted to a beach hut blaze on Forelands Field Road in Bembridge shortly before midnight.
The building was well alight with smoke and flames issuing, when crews first arrived on scene.
Jets and hose reels were used to tackle the fire, with the Ventnor water carrier also subsequently requested to attend.
The incident was handed over to electrical engineers who worked to isolate the power supply.
HIWFRS left the scene and returned to station at around 3am.