What is Mechanic's Lien?
A legal claim against a property filed by an unpaid contractor, subcontractor, or supplier to secure payment for labor or materials provided.
Definition
A mechanic's lien (also called a construction lien, contractor's lien, or materialman's lien) is a legal right granted to construction professionals — contractors, subcontractors, suppliers, and laborers — to secure payment for work performed or materials supplied to improve a real property. When filed with the county recorder or appropriate government office, the lien attaches to the property title, which prevents the property owner from selling, refinancing, or transferring the property until the lien is resolved. This makes a mechanic's lien one of the most effective tools for unpaid parties in the construction industry to compel payment.
How Mechanic's Liens Work
The mechanic's lien process typically follows these steps: (1) Work is performed and materials are supplied on a property. (2) The contractor, subcontractor, or supplier is not paid as agreed. (3) A preliminary notice (Notice of Right to Claim a Mechanic's Lien) is sent to the property owner, informing them of the work being performed and the amount owed. (4) A mechanic's lien is filed with the county recorder's office against the property. (5) The lien remains attached to the property until the debt is paid or the lien is foreclosed through legal action. (6) If payment is still not made, the lienholder can sue to foreclose — forcing a sale of the property to satisfy the debt.
Preliminary Notice Requirements
Most states require unpaid parties to send a preliminary notice (also called a Notice of Furnishing, Notice of Intent, or 20-day notice) to the property owner before they can file a mechanic's lien. This notice must typically be sent within a specific timeframe after first furnishing labor or materials — often 5 to 20 days. The notice informs the owner that the claimant is working on the project and may file a lien if not paid. Sending this notice is a critical prerequisite — failing to send it can completely bar a claimant's right to file a lien, even if the work was performed correctly.
Who Is Protected by Mechanic's Liens
Mechanic's lien laws are designed to protect parties who contribute to improving a property but may not have direct contractual privity with the property owner: General Contractors — can file liens against the property owner directly; Subcontractors — can file liens even though they were hired by the general contractor rather than the owner; Material Suppliers — can file liens when they supply materials to a project, even if they never set foot on the property; and Mechanics and Laborers — workers who perform labor on the property can in some states file liens for unpaid wages. The scope of protection varies by state, with some states providing broad protection and others limiting lien rights to specific parties.
How Contractors Can Protect Payment Rights
To protect your right to payment and your ability to file a mechanic's lien: send preliminary notices promptly and correctly before starting work; understand your state's lien deadlines and file on time; document everything with photographs, daily logs, delivery tickets, and signed change orders; send invoices promptly and follow up aggressively on overdue payments; include clear payment terms in your contracts, including provisions for interest on late payments; verify the property owner and general contractor's financial stability before taking on large projects; and consider requiring progress payments tied to project milestones to reduce your exposure at any one point in time.