What is the deadline to file a mechanics lien in Pennsylvania?
Last reviewed July 5, 2026
In Pennsylvania, you must file a mechanics lien within six months after the last day of work or materials were provided. If you're a sub or supplier, you also need to send a notice to the owner within 30 days of starting work or supplying materials.
Key points
- File lien within six months after last work or materials provided.
- Subcontractors must send notice to the owner within 30 days.
- Check local law for any specific requirements or variations.
Make sure to track your deadlines closely. If you miss the six-month mark, you lose your right to file a lien, which can seriously impact your ability to get paid. Always confirm with the state's mechanics lien statute for the most accurate information.
How Alloovium helps
Alloovium can help track your compliance deadlines and obligations related to mechanics liens.
See how it worksRelated questions
- Can a subcontractor file a lien without a written contract in Pennsylvania?
- Do I need to send a preliminary notice before filing a lien in Pennsylvania?
- How long does a mechanics lien last in Pennsylvania?
- How much retainage can be withheld on a construction project in Pennsylvania?
- What are the prompt payment rules for construction in Pennsylvania?
- What is the difference between a conditional and unconditional lien waiver in Pennsylvania?
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.