Non-payment is one of the most common and most damaging problems construction businesses face. A completed project, delivered on time and within scope, should result in payment. In practice it often doesn’t, and many contractors, subcontractors, and suppliers discover too late that they didn’t take protective steps. Working with a skilled Denver construction lawyer is one of the most effective ways to understand those protections before a project goes wrong.
The primary legal tool available to construction businesses that are not paid is the mechanic’s lien. Most people in the industry have heard of it, but far fewer understand how it works, who can use it, and why the timing of the process matters as much as anything else.
What a Mechanic’s Lien Is
A mechanic’s lien is a legal claim against a property that has been improved by labor, materials, or services for which payment has not been made. Despite the name, mechanic’s liens have nothing to do with cars or machinery. The term comes from the historical use of “mechanic” to describe skilled tradespeople and craftsmen.
The core concept is if you contribute to improving a piece of real property and are not paid for that contribution, you have the right to place a claim against the property itself. That claim attaches to the title of the property, meaning the owner cannot sell or refinance without resolving the outstanding lien.
Property owners who want to close on a sale or secure new financing have a strong incentive to resolve valid lien claims. For construction businesses, that leverage is often the most effective tool available for recovering what they are owed.
Who Has the Right to File
Subcontractors who performed work on a project have the right to file a lien against the property, even if they have no direct contract with the property owner. Material suppliers who delivered goods to the project site have the right to file, even if the materials were ordered by a subcontractor rather than the owner. In most states, architects, engineers, and other design professionals who contributed to the project may also have lien rights depending on the jurisdiction.
This means a property owner can face lien claims from multiple parties on a single project; not just from the general contractor, but from every tier of the project that has not been paid. Understanding who holds lien rights on a given project matters for both contractors seeking to use them and property owners trying to manage their exposure.
Why Deadlines Matter More Than Most People Realize
Mechanic’s lien rights come with strict procedural requirements, and the most consequential of these is timing. Every state has deadlines by which a lien must be filed, and those deadlines are calculated from specific triggering events, such as the last date work was performed or the last date materials were delivered to the project.
In Colorado, these deadlines vary depending on the type of project and the claimant’s role in it. Missing a deadline does not result in a reduced claim. It results in the complete loss of lien rights, regardless of how legitimate the underlying payment dispute is.
Some states also require that a preliminary notice be delivered to the property owner before lien rights can be exercised. This notice typically must be sent within a specific number of days of first performing work or furnishing materials. Failing to provide it on time (even when the work itself was performed correctly) can eliminate the right to file a lien later.
Many construction businesses discover these requirements only after the applicable window has closed. Knowing the deadlines before a project begins, not after a dispute develops, is part of what separates businesses that consistently recover payment from those that absorb losses because the legal opportunity expired.
What Happens When a Lien Is Filed
Once a lien is recorded against a property, it becomes part of the public record and attaches to the title. The property owner receives notice of the claim. From that point, there are typically a few possible paths: the owner pays the disputed amount and the lien is released, the parties negotiate a settlement, or the claimant moves to enforce the lien through a foreclosure action.
Lien foreclosure is a legal proceeding in which the claimant asks the court to order a sale of the property to satisfy the unpaid debt. This is a more involved process than filing the lien itself, and it operates on its own deadlines.
In Colorado, a lien must be enforced within a set period after it is filed or it expires and loses its legal effect. Since lien foreclosure is fundamentally a real estate proceeding, construction businesses that work with a Denver real estate lawyer are often better positioned to understand how the process interacts with property title when a dispute reaches this stage.
For most construction businesses, the goal is payment, not foreclosure. The lien creates conditions that make non-payment costly for the property owner. In many cases, filing a valid and properly documented lien is enough to prompt a resolution without the matter going further.
Liens Are Not a Substitute for Good Contracts
Mechanic’s liens are a powerful recovery tool, but they work alongside solid contracts. A clear written contract establishes the scope of work, the payment schedule, what constitutes a change order, and what happens if either party fails to perform.
When a payment dispute arises, the contract is the first document everyone examines. A contract that is vague about payment terms, scope, or completion creates ambiguity that complicates the dispute and weakens the lien position as well.
Several provisions matter most in construction contracts. Payment terms should define when invoices are due, what triggers payment, and what the consequences of late payment are. Change order language should establish that additional work requires written documentation and approval before it is performed.
Dispute resolution clauses define how disagreements will be handled and where, which affects both the cost and the timeline of any legal proceeding. A construction business that has clear contracts and understands its lien rights operates from a substantially stronger position than one relying on either alone.
When a Payment Dispute Becomes a Legal Matter
Not every payment dispute results in a lien filing, and not every lien filing results in litigation. Many disputes resolve through direct negotiation, particularly when the claimant has clearly preserved its legal rights and the property owner understands the cost of leaving a lien unresolved.
Whether it’s a property owner who contests the quality of work, a general contractor who claims a subcontractor caused project delays, or a supplier whose materials were rejected, these situations can involve competing claims that go beyond what the parties can resolve between themselves.
When a construction payment dispute reaches that stage, the outcome depends heavily on how well each party documented its work. Signed change orders, delivery receipts, written communications, progress photos, and a clear record all become the foundation of any legal proceeding.
Construction businesses that treat documentation as a secondary concern tend to find it becomes a primary one when a dispute escalates. The time to build that record is during the project, not after a problem develops.
Endnote
Getting paid for completed construction work should be straightforward. In practice, it often is not, and the businesses that consistently protect their revenue are the ones that understand their legal tools before they need them.
Mechanic’s liens are the most powerful payment protection available to contractors, subcontractors, and suppliers, but they require timely action, correct procedures, and a clear understanding of the rules that apply to each project and each role in it. Combined with solid contracts and disciplined documentation, they give construction businesses a meaningful framework for recovering what they have earned.
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