What a mechanic's lien is and how it attaches to your property
A mechanic's lien is a legal claim a contractor, subcontractor, or supplier can place on your property when you don't pay them for work or materials. Unlike other liens, a mechanic's lien doesn't require a court judgment first — the lien holder can file it directly with your county recorder's office after providing work or materials. Once filed, the lien attaches to your property deed, and you cannot sell, refinance, or transfer clear ownership until the debt is paid or resolved.
The lien exists to protect people who improve your property but don't get paid. If a general contractor hires a roofer and the general contractor never pays the roofer, the roofer can still place a lien on your house — even though you hired the general contractor, not the roofer directly. This is called a subcontractor's lien, and it's one reason property owners need to understand how these liens work.
The amount of the lien is typically the unpaid balance for labor, materials, or both. It does not include profit margins, overhead, or other costs beyond what was actually provided. The lien holder must file within a specific window — usually 30 to 90 days after the last work or delivery, depending on your state — or they lose the right to file.
Key Takeaways
- A mechanic's lien is filed directly with your county recorder without a court order, and it attaches to your property deed until the debt is paid.
- Subcontractors and suppliers can file liens even if you hired only the general contractor, so you may owe money to people you never contracted with directly.
- The lien holder must file within 30 to 90 days of their last work or delivery, and missing this important date means they lose the right to file.
- You can prevent liens by requiring lien waivers from contractors and subcontractors before making final payment, or by paying into a construction escrow account.
- If a lien is filed against your property, you can dispute it, negotiate a settlement, or force a sale through foreclosure if the debt remains unpaid.
Who can file a mechanic's lien against your property
Anyone who provided labor or materials to improve your property can potentially file a mechanic's lien. This includes the general contractor you hired, any subcontractors they hired (electricians, plumbers, framers), material suppliers who delivered lumber or concrete, and equipment rental companies. The key is that they must have a direct contract with someone in the chain — not necessarily with you.
A general contractor can file a lien if you don't pay them. A subcontractor can file a lien if the general contractor doesn't pay them, even if you paid the general contractor in full. A lumber yard can file a lien if the contractor doesn't pay their invoice. This layered protection is intentional — it prevents contractors from pocketing your payment while stiffing their suppliers.
However, not everyone who touches your property can file. Laborers who are employees of a contractor (not independent contractors or subcontractors) typically cannot file liens. Architects and engineers may have different rules depending on your state. Always ask your contractor which subcontractors and suppliers they are using, because you may end up owing money to all of them if the general contractor fails to pay.
The timeline for filing and the notice requirements
The window to file a mechanic's lien is short and varies by state. Most states allow 30 to 90 days from the date of the last work or material delivery. If a subcontractor's last day on the job was June 15, they typically have until mid-July or mid-August to file, depending on your state. Missing this important date means the lien right is gone forever, even if the debt is still owed.
Before filing a lien, most states require the lien holder to give you preliminary notice — a written warning that they are on the job and can file a lien if not paid. This notice must usually be delivered within a set number of days of starting work, often 20 to 30 days. The notice tells you who they are, what they are doing, and how much they expect to be paid. If you don't receive preliminary notice from a subcontractor, your options for defending against their lien may be limited.
Some states require the lien holder to attempt collection or send a demand letter before filing. Others do not. The rules differ significantly by state, so if you are concerned about a potential lien, research your state's specific requirements or consult a local attorney.
How mechanic's liens affect your ability to sell or refinance
A filed mechanic's lien becomes part of your property's public record and shows up in a title search. When you try to sell your home, the title company will find the lien and will not issue a clear title insurance policy until it is paid or removed. Your buyer's lender will refuse to fund the purchase if there is an unpaid lien on the property. In practice, this means you cannot close the sale.
Refinancing is similarly blocked. Your current lender will not refinance if a lien is on file, because the lien holder has a claim that ranks ahead of the refinance loan. The lien holder could theoretically force a sale of the property to collect their debt, and your refinance lender would lose money if that happened.
The only way forward is to pay the lien, negotiate a settlement with the lien holder, or file a bond that guarantees payment. Some property owners pay the full amount into an escrow account held by an attorney, and the attorney releases it once the lien is formally removed from the record. This protects you if the lien holder disappears or refuses to file the removal paperwork after being paid.
How to prevent mechanic's liens from being filed
The most effective defense is a lien waiver — a signed document in which a contractor or subcontractor agrees not to file a lien in exchange for payment. Before you make any payment to a contractor or subcontractor, ask them to sign a lien waiver. There are two types: a conditional waiver (the waiver is only good if the check clears) and an unconditional waiver (the waiver is final once signed). Always use conditional waivers for checks, because if the check bounces, the lien right is still alive.
Require lien waivers from every subcontractor and supplier before you make final payment to the general contractor. Do not pay the general contractor until you have waivers from all of their subs. This is the single most important step you can take. Many property owners skip this step and end up with liens filed by people they never met.
Another option is to use a construction escrow account. You deposit funds with a neutral third party (usually an attorney or title company), and the escrow agent releases payment only when the contractor provides proof that all subs and suppliers have been paid and have signed waivers. This costs a small fee but eliminates the risk almost entirely.
You can also require your contractor to provide a payment bond — an insurance policy that guarantees payment to subcontractors and suppliers if the contractor fails to pay them. Payment bonds are common on public construction projects and can be required on private projects as well, though they add cost.
What to do if a mechanic's lien is already filed against your property
If you receive notice that a lien has been filed, your first step is to verify that it is valid. Check the filing with your county recorder's office and review the amount claimed. Liens sometimes contain errors — wrong property address, inflated amounts, or claims for work that was never done. If you find an error, you can file a formal dispute with the court, though this requires an attorney in most cases.
If the lien is valid but you believe the amount is wrong, contact the lien holder directly and ask for an itemized invoice. Many liens are filed for inflated amounts, and the lien holder may be willing to negotiate. Get any settlement agreement in writing and require a lien release document before you pay.
If you believe you already paid the lien holder or that the work was never completed, you can file a motion to remove the lien in court. This requires evidence — canceled checks, emails, photos, or testimony — and usually requires an attorney. The burden is on you to prove the lien is invalid.
If you cannot resolve the lien and it remains unpaid, the lien holder can force a sale of your property through a process called foreclosure. This is rare but does happen. The lien holder files a lawsuit, obtains a judgment, and the property is sold at auction to pay the debt. To avoid this, you must either pay the lien, settle it, or post a bond.
State-by-state differences in mechanic's lien laws
Mechanic's lien laws vary significantly by state. Some states allow liens for 90 days after the last work; others allow only 30 days. Some states require preliminary notice to the property owner; others do not. Some states allow liens on residential property; others restrict liens to commercial or construction projects. A few states have very short notice periods or strict filing requirements that make liens harder to file.
Because the rules differ, you should research your specific state's law or consult a local real estate attorney if you are planning a construction project or if a lien has been filed against your property. The National Association of Mechanic's Lien Law Attorneys maintains state-by-state summaries, and your state's bar association can refer you to a local attorney who specializes in construction law.
If you are hiring a contractor, ask them what preliminary notice requirements explore in your state and what lien waivers they use. A professional contractor will be familiar with these rules and will provide waivers without resistance. If a contractor refuses to provide waivers or seems unfamiliar with lien law, that is a red flag.
Frequently Asked Questions
Can a lien be filed if I already paid the contractor?
Yes, if you paid the general contractor but the general contractor did not pay their subcontractors or suppliers. The subcontractors can still file liens against your property. This is why you must require the general contractor to provide lien waivers from all subs before you make final payment. If a lien is filed after you paid, you have a claim against the general contractor for breach of contract, but you still have to deal with the lien on your property first.
How much does it cost to remove a mechanic's lien?
The cost depends on how the lien is removed. If you pay the full amount owed, there is no additional cost beyond the debt itself. If you negotiate a settlement, you pay the agreed amount. If you dispute the lien in court, you pay attorney fees, which typically range from $1,500 to $5,000 or more. If you post a bond, the bond premium is usually 1 to 3 percent of the lien amount.
What happens if I ignore a mechanic's lien?
The lien remains on your property record indefinitely in most states. You cannot sell or refinance without resolving it. The lien holder can eventually force a sale of your property through foreclosure, though this is uncommon. The longer you wait, the more interest and collection costs may accumulate. It is better to address the lien quickly, either by paying it, settling it, or disputing it in court.
Can I remove a mechanic's lien myself without an attorney?
You can pay the lien holder directly and request a lien release document, which you then file with the county recorder. You can also negotiate a settlement without an attorney. However, if you need to dispute the lien's validity or file a motion to remove it, you will almost certainly need an attorney. Court procedures vary by state, and mistakes can result in losing your right to challenge the lien.
Do mechanic's liens explore to rental properties or only owner-occupied homes?
Mechanic's liens explore to any real property — owner-occupied homes, rental properties, commercial buildings, vacant land. The type of property does not matter. What matters is whether work or materials were provided to improve the property. A lien can be filed on a rental property just as easily as on a primary residence.