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Pennsylvania Mechanics Lien Law

Everything you need to know to protect your lien rights in Pennsylvania

Critical Deadlines

30

days - Preliminary Notice

120

days - Lien Filing

720

days - Enforcement

📋Preliminary Notice

REQUIRED
Deadline
30 days from first furnishing
Form Name
Notice of Intent to File Lien (residential)
Must be Served To
Owner
Delivery Method
Certified mail

Warning: Missing this deadline may result in losing ALL lien rights.

⚖️Lien Filing

Filing Deadline
120 days from completion
Where to File
Prothonotary in county where property is located
Filing Fee
$40-75
Description
Within 4 months of completion

⏱️Enforcement

Deadline to Sue
720 days from filing lien
Description
Within 2 years of filing lien

Note: If you don't file a lawsuit within this period, your lien becomes unenforceable.

🏛️Public Projects (Bond Claims)

Preliminary Notice
Required within 30 days
Bond Claim Deadline
90 days from completion
Governing Statute
8 Pa.C.S. §193

Special Rules & Contractor Protections

Pay-if-Paid

⚠️ Enforceable

Anti-Indemnity

✓ Protected by 68 Pa.C.S. §491

Retainage Cap

10%

Prompt Payment

7 days

License Required

Not required for liens

💡 Important Notes for Pennsylvania

  • Residential projects require 30-day notice
  • Commercial projects may not require preliminary notice
  • Strong 7-day prompt payment law

📚 Statute References

Lien Law:
49 P.S. §1301
Bond Law:
8 Pa.C.S. §193
Prompt Pay:
73 P.S. §507

Protect Your Rights in Pennsylvania

SubShield automatically applies Pennsylvania lien laws when analyzing your contracts. Get deadline tracking, compliance alerts, and personalized risk analysis.

This information is for educational purposes only and is current as of January 2026. Always consult with a licensed Pennsylvania construction attorney for your specific situation.