What Is Mechanics Lien?
A mechanics lien gives contractors and suppliers a claim against the property when they're not paid. They file the lien with the county recorder. It creates a cloud on title—the property can't be sold or refinanced until the lien is paid or released. Mechanics liens can be filed by the general contractor, subs (plumbers, electricians), or material suppliers. Deadlines vary by state—often 60–120 days after work is completed or materials supplied. If you buy a property and a mechanics lien surfaces later (from work the prior owner didn't pay for), you can be stuck—title insurance may protect you. As an investor doing renovations, pay your contractors and get lien waivers to avoid mechanics liens on your own properties.
A mechanics lien is a lien filed by a contractor, subcontractor, or supplier who wasn't paid for work or materials on a property—it secures their claim against the property.
At a Glance
- What it is: A lien filed by a contractor or supplier who wasn't paid.
- Why it matters: Clouds title—must be paid or released before sale or refinance.
- Key detail: Can be filed after work is done—even by prior owners' contractors.
- Related: Lien, contractor, cloud on title, clear title.
- Watch for: Get lien waivers from contractors when you pay them—prevents surprise liens.
How It Works
Who can file. General contractors, subcontractors (plumbers, electricians, HVAC), and material suppliers. Each has a right to file if they weren't paid. The general contractor may have been paid, but a sub may not have—the sub can still file against the property.
Process. The contractor or supplier files a mechanics lien with the county recorder. Some states require a preliminary notice before work; others allow filing after work is complete. Deadlines vary—often 60–120 days from last work or materials supplied. The lien is recorded. It creates a cloud on title.
Enforcement. The contractor can foreclose on the lien if they're not paid. Or they can wait—the lien stays on the record until released. The property can't be sold or refinanced without clearing it.
Release. Pay the contractor. They file a lien release. The cloud on title is cleared.
Real-World Example
Indianapolis duplex, $175,000. You close. Six months later.
A plumbing sub files a mechanics lien for $4,800—bathroom work the prior owner's contractor never paid for. The title search at closing missed it (filed after closing, or the search window didn't catch it). You have title insurance. You file a claim. The title company pays the contractor $4,800 and gets a release. Your policy cost $750 at closing. That's why you buy title insurance. Without it, you'd pay the lien yourself.
Pros & Cons
- Protects contractors and suppliers—they get paid for their work.
- Title insurance can protect you if a mechanics lien surfaces after closing.
- Lien waivers from contractors when you pay them prevent liens on your own projects.
- Title search finds mechanics liens before you buy.
- Can surprise you—filed after work is done, even by prior owners' contractors.
- Clouds title—blocks sale and refinance until paid or released.
- Multiple liens can add up—general contractor + subs + suppliers.
Watch Out
- Execution risk: When you hire contractors, get lien waivers when you pay them. Waivers state they've been paid and waive their right to file a lien. Without them, a sub can file even if you paid the general.
- Compliance risk: Mechanics lien laws vary by state—deadlines, notice requirements, who can file. Know your state.
- Modeling risk: If you're buying a recently renovated property, check for mechanics liens. The prior owner may not have paid the contractor.
Ask an Investor
The Takeaway
A mechanics lien is a lien filed by a contractor or supplier who wasn't paid. It clouds title. Get title insurance to protect you. When you hire contractors, get lien waivers when you pay. Don't let mechanics liens surprise you.