Protecting Your Right To Payment Under The Illinois Mechanics’ Lien Act
Why Mechanics’ Liens Matter For Illinois Contractors And Subcontractors
As a DuPage County construction attorney, I regularly help contractors, subcontractors, and suppliers secure the money they are owed for work performed or materials furnished on private property. Whether you’re a general contractor, tradesperson, or materials supplier, you’ve probably been in a situation where payment was delayed, or withheld entirely. The Illinois Mechanics’ Lien Act gives you a powerful legal tool to protect your right to payment.
A mechanics’ lien allows you to place a legal claim on the property where you worked or supplied materials. That lien creates a cloud on the title and may prevent the owner from selling or refinancing the property until your claim is resolved. When filed correctly and within the required deadlines, it gives you strong leverage to collect what you’re owed—even if you don’t have a written contract or weren’t hired directly by the property owner.
But the Illinois Mechanics’ Lien Act, found at 770 ILCS 60, is full of strict requirements, technical deadlines, and procedural traps. Missing a notice deadline or filing too late can cost you your right to collect. That’s why understanding how to use the lien process correctly—and timely, is essential.
Who Can File A Mechanics’ Lien In Illinois?
Under Section 1 of the Mechanics’ Lien Act, anyone who performs labor, furnishes materials, or improves private property is entitled to lien rights. This includes:
- General contractors
- Subcontractors
- Laborers
- Material suppliers
- Architects, engineers, and design professionals
To qualify, the work must be done with the owner’s knowledge and intended to permanently improve the property. Routine maintenance and short-term repairs usually do not qualify for a lien.
Key Notice And Filing Deadlines
Illinois law is strict about the timing and form of notices. The requirements differ depending on whether you are a general contractor or a subcontractor.
General Contractors must:
- File a lien claim within 4 months of the last date of work to have a fully enforceable lien against third parties
- File a lawsuit to enforce the lien within 2 years of completion
Subcontractors and Suppliers must:
- Serve a 90-day notice on the property owner and lender (if any) within 90 days of the last furnishing of labor or materials
- File the lien claim with the recorder of deeds within 4 months of the last work
- File suit to enforce within 2 years of the last work
Failing to meet any of these deadlines will likely result in the loss of your lien rights.
The Lien Recording Process
Filing the lien begins with preparing a Claim for Mechanics’ Lien that includes:
- Legal description of the property
- Name of the property owner
- Your contract details, scope of work, and unpaid amount
- Dates when work started and ended
- Sworn verification of the information
The claim must then be recorded in the county where the property is located. In DuPage County, this means filing with the DuPage County Recorder’s Office.
Once the lien is recorded, you must serve a copy on the property owner. For subcontractors, serving the 90-day notice must happen before this step.
Enforcing The Lien Through A Lawsuit
Recording a lien does not automatically get you paid. If the property owner refuses to pay, you may need to enforce the lien by filing a lawsuit. This action is known as a foreclosure suit, and it allows you to seek a court order forcing the sale of the property to satisfy your claim.
The deadline to file suit is within two years from the completion of work. But the sooner you file, the better, especially if there are other lienholders or the owner tries to transfer or refinance the property.
How Mechanics’ Liens Interact With Illinois Construction Warranties
Under Illinois construction law, builders and contractors also have obligations under implied warranties, such as the implied warranty of habitability and workmanlike construction. Filing a lien does not eliminate your duty to perform quality work, and if the owner claims defective construction, they may use that as a defense to your lien.
That’s why we always evaluate lien claims alongside any warranty or contract disputes. If needed, we work with construction professionals to prove the quality of the work or rebut warranty allegations.
Illinois Mechanics’ Lien FAQs
What Happens If I Miss The 90-Day Notice Deadline As A Subcontractor?
If you are a subcontractor or supplier and fail to serve the 90-day notice within the required timeframe, your lien claim will not be valid against the property owner or lender. However, you may still pursue a breach of contract claim against the party that hired you. It’s best to serve the notice early, even if you’re unsure whether payment will be delayed.
Can I File A Lien Without A Written Contract?
Yes. The Illinois Mechanics’ Lien Act allows liens based on oral contracts, as long as you can prove the scope of work, the agreed price, and that the work improved the property. However, having documentation such as invoices, purchase orders, or communications can strengthen your case.
Can I File A Lien On Residential Property?
Yes, but extra caution is required. If the property is a single-family residence and the owner occupies it, there may be additional notice requirements. Illinois law protects homeowners from abusive lien practices, so your claim must be precise and backed by clear documentation.
Does A Mechanics’ Lien Guarantee That I’ll Get Paid?
No. A lien gives you a powerful tool, but it does not guarantee payment. If the owner disputes the claim, you may have to enforce the lien in court. If the property has a mortgage, your lien may be second in line. However, liens often prompt payment because they prevent refinancing, sale, or title transfers.
Can An Owner Or General Contractor Challenge My Lien?
Yes. Property owners and contractors can challenge liens by filing a motion to discharge or by demanding a lien waiver. They may argue that the work was defective, the claim is inflated, or deadlines were missed. That’s why your initial lien filing must be accurate and timely.
What If I’m Still Working On The Project—Should I Wait To File?
You should file within 4 months of the last substantial work or delivery, not minor punch-list items. Waiting too long could put you outside the lien window. If you’re still working but not being paid, it may be appropriate to serve a 90-day notice now and file the lien as your final date approaches.
Can I Recover Legal Fees In A Mechanics’ Lien Suit?
In some cases, yes. If your contract includes an attorney fee clause or if the court finds the lien was improperly withheld, you may recover your fees. But generally, Illinois mechanics’ lien law does not guarantee fee recovery unless specified in the contract.
What Should I Do If A Property Owner Files Bankruptcy After I File A Lien?
Filing a lien before the bankruptcy may protect your rights as a secured creditor, but bankruptcy law is complex. You may need to file a proof of claim in the bankruptcy court and ask for permission to enforce the lien. We can coordinate your lien rights with bankruptcy counsel if needed.
Call Keller Law Group For Exceptional Representation
At Keller Law Group, LLC, we help contractors, subcontractors, and suppliers across Illinois enforce their lien rights quickly and effectively. If you are owed money for construction work or materials and want to preserve your claim under the Illinois Mechanics’ Lien Act, don’t wait.
Contact our Chicago mechanics lien attorney at Keller Law Group by calling 630-868-3093 to receive an initial consultation. We represent clients in DuPage County, Chicago, and throughout the state of Illinois. Let us protect your hard work and your right to be paid.