Do I need to send a preliminary notice before filing a lien in Illinois?
Last reviewed July 5, 2026
Yes, in Illinois, you must send a preliminary notice to the property owner before filing a lien if you're a contractor or subcontractor. This notice should be sent within 90 days of the last work or materials provided.
Key points
- Preliminary notice is required for contractors and subs.
- Deadline to send notice is 90 days after last work/materials.
- Missing this notice can affect lien rights.
In Illinois, sending a preliminary notice protects your right to file a mechanics lien. It informs the property owner about potential claims, which helps make sure you get paid. If you skip this step, you risk losing the ability to file your lien.
How Alloovium helps
Alloovium can help track notice deadlines and make sure you comply with lien requirements.
See how it worksRelated questions
- Can a subcontractor file a lien without a written contract in Illinois?
- How long does a mechanics lien last in Illinois?
- How much retainage can be withheld on a construction project in Illinois?
- What are the prompt payment rules for construction in Illinois?
- What is the deadline to file a mechanics lien in Illinois?
- What is the difference between a conditional and unconditional lien waiver in Illinois?
General information for US construction professionals — not legal advice. Lien deadlines, retainage caps and notice rules vary by state; verify with the state statute or a construction attorney.