If you have put in the time and effort to complete a renovation on someone’s home but have not been paid, a construction lien is a legal option to collect what you are owed. Construction law in Ontario is complex, with strict deadlines and procedures that must be followed. Even lawyers who frequently work with construction law sometimes struggle with the details, so it is important to understand how to protect yourself and your business. To help give you a general understanding let’s review the basics of construction liens.