The cost to clean-up areas hit by bushfires in January is expected to surpass $3 million.
Hazell Bros was awarded a contract by the State Government, without going to tender, in the days after fires swept through Tasmania's south east, destroying about 200 houses.
Bushfire Recovery Unit director Mathew Healey said initial estimates indicated it was costing $10-$12,000 on average per property.
Larger properties are expected to cost more.
Hazell Bros have cleared 37 sites so far and 300 property owners have registered and are eligible for clean up.
Mr Healey said the clean-up is on track to be completed by the end of April.
This week, six crews are working in Dunalley, Murdunna, Boomer Bay, Arthur Highway and Connellys Marsh.
Just over 150 consent forms have been handed to Hazell Bros, with more than 130 forms still to be returned by insurance companies.
Clean-up work cant be scheduled for insured properties until written consent has been provided through insurance companies.