Pennsylvania Lien Laws

Your Guide to Filing, Enforcing, and Discharging Pennsylvania Mechanic’s Liens

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Pennsylvania Lien Filing Resources

Understanding Your Rights and Responsibilities Under PA Lien Law

Contractors, subcontractors, and suppliers in Pennsylvania have the right to file a Mechanic’s Lien to protect their payment. Filing a lien requires careful attention to strict deadlines and legal requirements — overlooking a step can invalidate your claim.

Speedy Lien simplifies the process by filing your Pennsylvania Mechanic’s Lien quickly, accurately, and in full compliance with state requirements.

Table of Contents

Pennsylvania Lien Law Basics

Understand the key elements of a Mechanic’s Lien and the rights it provides to contractors and suppliers.

Key Rules:

  • Deadlines: Pennsylvania Mechanic’s Liens must be filed within 6 months of the last date labor was performed or materials were furnished. This deadline is strict — there’s no grace period for punch-list work or good intentions.

  • Who Can File: Contractors and subcontractors who contracted directly with the owner, the general contractor, or a subcontractor in direct privity with the general contractor. Architects and engineers qualify only if they contracted directly with the owner and supervised the work. Sub-subcontractors and equipment lessors do not have lien rights in Pennsylvania.

  • Who Can Be Held Responsible: The lien attaches to the owner’s estate or title in the property for debts the owner owes the contractor, or the contractor owes a subcontractor, for labor or materials furnished.

  • What Is Covered: Labor and materials furnished for the erection, construction, alteration, or repair of an improvement — including demolition, excavation, grading, and site work incidental to the project.

  • Scope: Pennsylvania liens attach only to private property. Liens cannot be filed against property used for a purely public purpose.

  • Legal Framework: Governed by the Mechanics’ Lien Law of 1963, 49 P.S. §§ 1101–1902.

  • Special Rules for Public Projects: Pennsylvania does not allow mechanic’s liens on publicly owned property. Public projects are covered instead by payment bonds under the Public Works Contractors’ Bond Law of 1967 — unpaid contractors and suppliers pursue a bond claim rather than a lien.

Expanded Information and Requirements:

Pennsylvania Mechanics’ Lien Law, 49 P.S. § 1101 et seq. — governs the right of contractors, subcontractors, and suppliers to secure payment through a lien against private property.

Every improvement and the owner’s estate or title in the property is subject to a lien for debts owed to a contractor or by a contractor to a subcontractor, provided the claim exceeds $500. A subcontractor does not have lien rights on residential property if the owner paid the contractor in full and the property is a single townhouse or building of one or two dwelling units used for residential purposes.

No lien is allowed for labor or materials furnished for a purely public purpose. If the property is conveyed in good faith for value before a claim for alterations or repairs is filed, the lien is lost entirely.

How to File a Mechanic’s Lien in Pennsylvania

Learn the steps to file a Mechanic’s Lien in Pennsylvania and protect your right to payment.

Key Rules:

  • Deadlines: File within 6 months of your last date of labor or materials furnished. If you’re a subcontractor and the owner or contractor has served you with a formal “rule to file,” you must file within 30 days of that notice or lose the right entirely.

  • Who Can File: Contractors and subcontractors as described above, on private projects only.

  • Required Contents: Your name and whether you’re filing as contractor or subcontractor; the owner’s name and address; the completion date of your work; if you’re a subcontractor, the name of the party you contracted with and the dates your preliminary and formal notices were served; a description of the labor or materials furnished and the amount claimed; and a description of the property sufficient to identify it. A full legal property description isn’t required.

  • Service Requirement: Subcontractors must serve a Formal Notice of Intent to File a Claim at least 30 days before filing. After filing, you must serve written notice of the filing on the owner within 1 month, and file an affidavit of service within 20 days after that. Missing either step is grounds to strike the lien.

  • Priority: For new construction, the lien’s priority dates back to the visible commencement of work on the ground — not the filing date. For alterations or repairs, priority runs from the filing date. Liens are subordinate to purchase-money mortgages and to open-end construction mortgages where at least 60% of the loan funds the project.

  • Duration: A lawsuit to enforce your lien must be commenced within 2 years of filing. A verdict or judgment must be entered within 5 years of filing, or the claim is lost entirely.

Expanded Information and Requirements:

No claim by a subcontractor is valid unless, at least 30 days before filing, the subcontractor gave the owner formal written notice of intent to file — unless the claim is filed pursuant to an owner’s rule to file.

To perfect a lien, the claimant must file with the prothonotary within 6 months of completing the work, then serve written notice of the filing on the owner within 1 month, and file an affidavit of service within 20 days. Failure to meet either deadline is grounds to strike the claim.

The claim must state the claimant’s name and role, the owner’s name and address, the completion date, subcontractor notice dates (if applicable), a description of the labor and materials furnished with pricing, the amount claimed, and a description of the property sufficient to identify it.

A claim may be amended without prejudice by agreement or leave of court — but after the filing deadline passes, no amendment may substitute a different property, substitute a different contracting party, or increase the claim amount.

Lien priority for new construction dates to the visible commencement of work on the ground; for alterations or repairs, priority runs from the filing date. Liens are subordinate to certain purchase-money and open-end construction mortgages.

Public Improvement Projects in Pennsylvania

NOTE: Pennsylvania law does not permit mechanic’s liens against publicly owned property. If you’re unpaid on a state, county, municipal, or other public project, your remedy is a payment bond claim, not a lien.

Key Rules:

  • Coverage: Public projects in Pennsylvania are covered by payment bonds required under the Public Works Contractors’ Bond Law of 1967, rather than by mechanic’s liens.

  • Who Can Claim: Contractors and subcontractors who furnished labor or materials on a covered public project and remain unpaid.

  • What To Do Instead: Unpaid parties should pursue a claim against the payment bond posted for the project. Speedy Lien can help identify the correct bond claim process for your project.

Satisfying a Mechanic’s Lien

Once the matter is paid and resolved, you must enter satisfaction of your lien on the record. Click here to submit your satisfaction request.

Key Rules:

  • Satisfaction by Lienor: Once your claim, verdict, or judgment is paid or otherwise resolved, you’re required to enter satisfaction on the record. If you fail to do so within 30 days of a written request, the court can order satisfaction and may impose a penalty against you up to the amount of the claim.

Extending a Mechanic’s Lien and Lien Enforcement

Once a Mechanic’s Lien is filed, it gives you a legal claim against the property, but it doesn’t automatically get you paid.

Key Rules:

  • Duration: A lawsuit to enforce your lien must be commenced within 2 years of the filing date. A verdict or judgment must be obtained within 5 years of filing, or the lien is wholly lost. Judgments can be revived every 5 years thereafter.

  • Foreclosure Action: Enforcing a lien means bringing an action to reduce it to judgment, then executing against the property — similar to how a mortgage lender forecloses when payments stop.

  • No Automatic Extension: Unlike some states, Pennsylvania doesn’t offer a simple lien-extension filing. The only way to preserve your rights past the initial deadlines is to commence enforcement proceedings on time.

Discharging a Mechanic’s Lien by Bond

Pennsylvania law allows an owner or interested party to discharge a lien by depositing with the court a sum equal to the claim amount, or by posting approved security in double that amount. Once deposited or secured, the court will order the lien discharged as a claim against the property — the dispute then proceeds against the deposited funds or bond instead of the property itself.

Discharging a lien this way is often a practical move when:

  • You need to clear title quickly for a sale, financing, or refinancing.
  • The lien amount is disputed or believed to be inflated.
  • You want to keep the property free and clear while the underlying payment dispute is resolved separately.

Expanded Information and Requirements:

A claim shall be discharged as a lien upon deposit with the court of a sum equal to the claim, or upon posting of approved security in double that amount. On residential properties where the owner has paid the full contract price, the lien may be discharged entirely by court order; where a partial payment was made, the lien may be reduced to the unpaid balance.

Compliance, Documentation, and Liability

Know your responsibilities under Pennsylvania lien law, including claim accuracy, amendment limits, and lien waiver rules.

Key Rules:

  • Accuracy of Claim: Your claim must accurately state the amount owed and the work performed. After the filing deadline passes, you cannot amend a claim to substitute a different property, substitute a different contracting party, or increase the claim amount.

  • Lien Waivers on Residential Property: A contractor or subcontractor may waive lien rights on residential property in writing, or through conduct that equitably prevents them from filing.

  • Lien Waivers on Nonresidential Property: Waivers on nonresidential projects are void as against public policy unless given in exchange for actual payment received — or, for subcontractors, unless the general contractor has posted a bond guaranteeing payment.

  • No Written Contract Required: Pennsylvania doesn’t require a written contract to file a lien, though it’s always safer to have one in writing.

Expanded Information and Requirements:

Residential lien rights may be waived in writing or by equitable conduct. Nonresidential waivers are void unless given in consideration for actual payment received, or the contractor has posted a payment bond.

Contract provisions that reduce a subcontractor’s rights or delay payment more than four months after completion give the subcontractor grounds to rescind — unless they had prior notice of those terms.

Official Information Disclaimer

Disclaimer: These codes may not be the most recent version. The state’s senate office may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.

We are not a law firm and our employees are not acting as your attorney. The information contained in the site is general legal information and should not be construed as legal advice to be applied to any specific factual situation.

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Benefits of Filing a Mechanic’s Lien in PA with Speedy Lien

  • Flat Fee for Lien Filing: We offer simple, flat-rate pricing for lien filing, no matter how much you are owed.

  • Avoid missing deadlines: Speedy Lien processes and files Mechanic’s Liens fast, so you can secure payment sooner.

  • Expertise in the Entire Lien Process: From filing to follow-up and enforcement, Speedy Lien manages every step of the Mechanic’s Lien process with precision.
  • Available Whenever You Need Us: Every call connects you to a knowledgeable state-specific expert who provides responsive support.

A Few of Our Satisfied Clients

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The Speedy Lien team has been a fantastic asset to my company. Dillon Nash is a pleasure to work with. He goes above and beyond to support us in filing our Mechanic’s Liens. Thank you Speedy Lien!

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