Understanding Colorado’s Mechanic’s Lien Law: What Every Homeowner Should Know Before Hiring a Contractor

By Prerna Kapoor, CLHMS | REAL Brokerage | May 9, 2026

Quick answer: Colorado’s mechanic’s lien law (C.R.S. 38-22-101) gives contractors, subcontractors, and suppliers the right to place a lien on your property if they’re not paid for work performed. As a homeowner, you can protect yourself by requiring lien waivers, verifying contractor licenses, and understanding the timeline for lien filings before any renovation project begins.

What a Mechanic’s Lien Actually Is

Most homeowners have heard the term “lien” but don’t really think about it until something goes wrong. So let me explain it in plain terms.

A mechanic’s lien is a legal claim against your property. If a contractor, subcontractor, or material supplier does work on your home and doesn’t get paid, Colorado law allows them to file a lien against your house. Not against the person who hired them – against the property itself.

Here’s the part that catches homeowners off guard: even if you paid your general contractor in full, a subcontractor or supplier who didn’t get paid by that general contractor can still file a lien against your home. You did everything right, paid every invoice on time, and you could still end up with a lien on your property because someone else in the chain didn’t get their check.

This isn’t theoretical. It happens in Colorado more often than you’d expect, especially on larger renovation projects where multiple subcontractors are involved.

How the Timeline Works Under Colorado Law

Colorado’s lien statute (C.R.S. 38-22-101 through 38-22-133) sets specific deadlines that both contractors and homeowners should understand:

The work completion date matters. A contractor or subcontractor has four months from the date they last provided labor or materials to file a mechanic’s lien statement with the county clerk and recorder. For projects in Douglas County or Arapahoe County, that filing goes to the respective county clerk’s office.

Notice requirements exist. Under Colorado law, subcontractors and suppliers who don’t have a direct contract with you (the homeowner) must serve a Notice of Intent to File a Lien at least ten days before filing. This gives you a window to resolve the issue – often by withholding payment to the general contractor until the subcontractor is paid.

Enforcement has a deadline too. Once a lien is filed, the lienholder has six months to file a lawsuit to enforce it. If they don’t file suit within that window, the lien expires. But don’t count on that – an active lien complicates refinancing, selling, or any title transfer.

Three Steps to Protect Yourself Before Any Project

I’ve seen clients deal with lien issues during home sales, and it’s always stressful. The good news is that most lien problems are preventable with some upfront work.

Step 1: Verify your contractor’s credentials. Colorado requires general contractors to be licensed through the Department of Regulatory Agencies (DORA). Check their license status, insurance coverage, and complaint history before signing anything. A licensed, insured contractor is less likely to disappear mid-project leaving unpaid subs behind.

Step 2: Require lien waivers with every payment. A lien waiver is a document where a contractor, subcontractor, or supplier acknowledges they’ve been paid and waives their right to file a lien for that payment. There are two types: conditional waivers (effective only when the check clears) and unconditional waivers (effective immediately). For progress payments during a project, use conditional waivers. For the final payment, get unconditional waivers from everyone who worked on the project.

Step 3: Include a “paid-in-full” clause in your contract. Your contract with the general contractor should explicitly state that the GC is responsible for paying all subcontractors and suppliers, and that final payment is contingent on receiving lien waivers from every party in the chain. A good real estate attorney can draft this language for a few hundred dollars – worth every penny on a $50,000+ renovation.

What to Do If a Lien Is Filed Against Your Home

If you get a notice of a mechanic’s lien, don’t panic, but don’t ignore it either.

First, verify the lien is valid. Check that it was filed within the four-month window, that the claimant actually performed work on your property, and that the amount claimed is reasonable. Liens with incorrect legal descriptions, wrong property addresses, or amounts that include work on other properties can be challenged.

Second, contact your general contractor immediately. If you paid the GC and they didn’t pay their sub, that’s a breach of your contract with the GC. Put your demand in writing – email is fine – and set a deadline for resolution.

Third, consult a Colorado real estate attorney. Lien disputes can escalate quickly, and the statutory deadlines are strict. An attorney can advise on whether to pay the lien directly (and pursue the GC for reimbursement), negotiate a reduction, or challenge the lien’s validity. Attorney fees for lien resolution in the Denver metro area typically run $1,500-$5,000 depending on complexity.

How Liens Affect Selling Your Home

This is where I see mechanic’s liens cause the most pain for my clients. If you’re selling your home and there’s an active lien, it will show up on the title search. And title companies won’t issue clear title with an outstanding lien.

That means the lien has to be resolved before closing – either paid off, negotiated down, or released by court order. If you’re in the middle of a sale and a lien surfaces, it can delay closing by weeks or even kill the deal if the buyer gets spooked.

If you’re planning to sell within the next year or two, check your property’s title now. You can request a preliminary title report from any Colorado title company – some offer them for free if you’re actively listing. Better to discover and resolve a lien on your own timeline than during a 30-day closing crunch.

The Bottom Line for Colorado Homeowners

Mechanic’s liens are one of those things most people don’t think about until they’re standing in the middle of a half-finished kitchen wondering why the tile guy stopped showing up. A little homework before the project starts – verifying licenses, requiring lien waivers, putting protections in your contract – saves enormous headaches later.

If you’re planning a renovation before selling, or if you’ve bought a home and discovered previous work that might have lien exposure, I’m happy to connect you with attorneys and title professionals who handle this regularly. It’s one of those situations where the right guidance early makes all the difference.

Prerna Kapoor | REALTOR® | Luxury Home Specialist
REAL Brokerage | 720-949-5450 | info@prernakapoor.com
CLHMS • RENE • PSA • ABR | International Sterling Society Award Winner

Prerna specializes in residential real estate across Parker, Aurora, Lone Tree, Castle Pines,
Highlands Ranch, Cherry Creek, Greenwood Village, and Centennial. She speaks English, Japanese,
and Hindi.