What Is a Mechanics Lien, AND Why Getting It Wrong Can Cost You Big

Author: Lindsay A. Compton

Date: January 30, 2026


If you’re a contractor, subcontractor, supplier, or property owner involved in a construction project, you’ve probably heard the term mechanics lien. In Florida, mechanics liens are powerful tools available to a contractor, subcontractor, or supplier to ensure payment, but they are also strictly governed by statute.

One missed deadline or one incorrect number can turn a valid lien into an expensive legal problem.


What Is a Mechanics Lien?
A mechanics lien is a legal claim placed on real property by someone who provided labor, services, or materials that improved the property and was not paid. When properly filed, the lien can cloud title to the property and, in some cases, lead to foreclosure if the debt remains unpaid.


When Can a Mechanics Lien Be Filed?
Under Chapter 713 of the Florida Statutes, Florida’s Construction Lien Law states lien rights arise when labor, services, or materials are furnished to improve real property. Having lien rights is one thing, properly enforcing them is another thing.

Before a lien can be recorded, several statutory requirements must be met, including required notices that must be made according to strict deadlines.

Time Limitations Matter
Florida’s lien statute is unforgiving when it comes to its timing. Some of the most critical deadlines include:

• For subcontractors and sub-subcontractors, serving a Notice to Owner: Properly delivered by certified mail, return receipt requested, or another statutorily approved method; and one of the following: 1. Severed within 45 days of first furnishing labor, services, or materials to the project; or 2. Served before the owner makes final payment to the contractor.

• Recording the Claim of Lien: A claim of lien must generally be recorded within 90 days of the final furnishing of labor or materials.

• Enforcing the Lien: A lawsuit to foreclose on the lien must be filed within one year of recording the lien, unless the deadline is shortened by a Notice of Contest of Lien.

Missing any of these deadlines can completely extinguish lien rights—no exceptions, no grace period.

You Can Only Lien for the “Value Added”, Not the Contract Price
One of the most common, and dangerous, mistakes contractors, subcontractor, supplier, make is assuming the lien amount equals the contract price or the unpaid balance of the contract.

That is not always true.

Under Florida law, a mechanics lien is limited to the value of the labor and materials actually furnished that improved the property, often referred to as the value added to the home or project. If work was defective, incomplete, or required correction, the lien amount may be reduced accordingly.


The Risk of Overstating a Lien Amount
Putting the wrong amount in a lien isn’t just a clerical error, it can have serious and expensive consequences.

If a lienor knowingly exaggerates the lien amount, they risk:

• The lien being deemed fraudulent;

• Entirely losing the right to enforce the lien;

• Not getting paid at all; and/or

• Being required to pay the other party’s attorneys’ fees and costs.

In other words, overstating a lien can turn a payment dispute into a costly lawsuit against the lienor.


Mechanics Liens Are Powerful, but Precision is Everything
Mechanics liens are effective only when they are done correctly. Florida’s lien law rewards precision and punishes shortcuts. Contractors who rush the process or rely on “what they’ve always done” often learn the hard way that lien law is not flexible.

Whether you are trying to file a lien, defend against one, or evaluate whether a lien is valid, legal guidance early can save substantial time, money, and risk.

Contact Compton Law, P.A.
If you have questions about mechanics liens, lien deadlines, lien amounts, or potential exposure for a fraudulent lien, contact Compton Law, P.A. We help contractors and property owners navigate Florida’s construction lien laws and protect their rights before small mistakes turn into expensive litigation.

Call Compton Law, P.A. at (239) 268-4114 today or use the link below to schedule a consultation to discuss your matter.