Can a Contractor Put a Lien on My House?

Yes — if a contractor, subcontractor, or supplier isn't paid for work done on your property, they can file a mechanic's lien against your home. This lien gives them a legal claim to your property until the debt is resolved. It's one of the most powerful tools available to construction professionals, and understanding how it works can help you protect yourself.

1. Mechanic's liens exist in every state

The rules vary significantly by state, but the basic concept is the same: if labor or materials improve your property and the provider isn't paid, they can file a lien that attaches to the property itself — not just to you personally.

2. Subcontractors can lien your property even if you paid your general contractor

This is the most common — and most frustrating — scenario. If your general contractor doesn't pay their subcontractors or suppliers, those unpaid parties can file liens against your property. You could end up paying twice for the same work.

3. Preliminary notices are often required before a lien

Many states require contractors to send a "preliminary notice" (or similar document) within a certain time after starting work. If they didn't send the required notice, they may lose their lien rights.

4. You can protect yourself with lien waivers

Before making payments, request lien waivers from the general contractor and all subcontractors. A lien waiver is a document confirming they've been paid and waiving their right to file a lien for that payment.

5. Liens must be filed within strict deadlines

Contractors typically have 60–120 days after their last day of work to file a lien, depending on the state. If the deadline has passed, the lien may be invalid and you can petition the court to remove it.

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