It is inexistent as of now in Israel. It may be a good business: Most homeowners already pay for fire insurance on their homes, as required by the mortgage banks.
The contract says that you need the fire service approval for the insurance to be valid.
The state service is imperfect, as they are not interested in saving property but saving lives and limiting the damage.
There is no private offer to complement or compete with the state service.
The state service is well equipped, but there are some niches they dont cover. Maybe the heat absorbing gel, or improved dusts. Airports have their own firefighting services.
The water may be harmful for specialized places, like electronics fires. A specialized private service could make money.