See how your own allowances add up, with scope and assumptions kept visible.
This calculator contains no Hydroseal price list or market-rate estimate. Enter allowances from a current proposal or your own approved budget. Results are arithmetic planning scenarios, not a diagnosis, quotation or recommended repair.
Check what the unit allowance includes before adding preparation or completion costs separately. Areas, access and repair boundaries should come from a defined scope. Concealed defects and additional investigations may change that scope.
Contingency is applied to your subtotal. If you enter a tax percentage, it is applied to the subtotal plus contingency for this scenario. Confirm the actual taxable items, GST treatment, exclusions and variations with the contractor.
