Since 1995
Construction Lien Period Calculator
We built the first Lien Period Calculator back in 1995 and it has been helping contractors, subcontractors, labourers and material suppliers ever since. Under Ontario’s Construction Act a lien must generally be preserved on or before the 60th day after your last day of supply or substantial completion. Enter that date to estimate your deadline.
A note on this estimate
This calculator gives an estimate of the 60-day preservation period only. Deadlines can shift with contract type, the date of publication of a certificate of substantial performance, holidays and the specific facts of your project. Canada Legal Services is not a law firm. Do not rely on this estimate alone. Call us at 519-783-1760 to confirm your exact date before you act.