"This will not commit them to taking the package if they decide an alternative approach will provide a better outcome."
An official speaking for Building and Construction Minister Maurice Williamson said the department had been thorough in letting people know about the deadline.
"[It] is contacting the homeowners via letter, email and telephone to make them aware of the deadline."
Eligible homeowners can get half their repair costs from the Government and councils through the scheme which started on July 29.
By the start of this month, the department had handled hundreds of calls and the website www.leakyhomes.govt.nz had more than 11,000 hits. More than 2200 claimants had indicated their interest in the package, the department said.
About 70 per cent of claims came from Auckland, 20 per cent from Wellington and Tauranga and the rest from Hamilton, Christchurch, Whangarei, Hurunui, Taupo and Kapiti Coast.
Mr Levie said 50,000 to 100,000 houses were outside the 10-year limit.
Plugging leaks
Leaky homes financial aid:
* 200 victims qualified for $23m
* $18m from the Government
* $5m from local councils
* Most claims from Auckland
* Wellington and Tauranga rank high
Source: Department of Building and Housing, figures from July 29 to October 4.