Mechanics Liens and Lien Waivers

Updated November 6, 2026

What Is a Mechanics Lien?

A mechanics lien is a legal claim against a property by someone who worked on it or supplied materials and was not paid. It can apply even if you paid your general contractor. Protect yourself by asking for signed lien waivers from the contractor and major subcontractors with each payment. Rules vary by state.

Updated November 6, 2026 · Source: construction.broker planning guide (our own assumptions, not survey data); always compare written bids.

Photo illustration for the guide: Mechanics Liens and Lien Waivers

How It Happens

You pay the general contractor, who fails to pay the supplier. The supplier files a lien on your home.

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Lien Waivers

A signed form saying that a party has been paid up to a date. Ask for one with each payment.

If a Lien Is Filed

Deadlines are short and state-specific, so speak to a local attorney. This is general information, not legal advice.

Use the payment schedule.

Check a Contractor

Sources: Washington L&I, Oregon CCB and New York DOL open data; © OpenStreetMap contributors (ODbL) · Data last updated November 6, 2026 · Sources & method