Fire has caused an estimated $200,000 damage to a home in Mount Gambier.


Four MFS crews and one CFS crew were called to the home in Robin Street just before 4pm on Thursday.


They were alerted to the blaze by a resident who called 000 to report the rear of the home was alight.


The crews arrived to find the home well alight at the rear and took 10 minutes to control the flames and stopped the fire spreading to the lounge and bedroom of the house, as well as the attached garage and caravan.


Two residents were taken to hospital by SA Ambulance Service crews to receive treatment for smoke inhalation.


The cause of the fire is yet to be determined.