Delaware Mechanic Lien Law: Complete Guide
Your Complete Guide to Mechanic Lien Rights Under 25 Del.C. §2711 et seq. — Private Works, Public Projects & Payment Bond Claims
Delaware mechanic lien deadline table with toggles for project type and claimant type.
Delaware Preliminary Notice & Mechanic Lien Deadlines
Select your project type and role to see the deadlines that apply to you.
Prime Contractor — In privity with the property owner
File the Statement of Claim with the Prothonotary of the Superior Court within 180 days after completion of the structure.
Completion may also be measured from alternative statutory triggers, including an agreed contract-completion date, owner acceptance, receipt of 90% of the contract price, issuance of a certificate of completion, or completion of permanent financing.
In Delaware, the action to enforce the lien is incorporated into the Statement of Claim itself; filing the Statement of Claim in Superior Court commences the action.
After filing, the claimant must furnish a Writ of Scire Facias, which the sheriff serves on the owner along with a copy of the Statement of Claim.
The case then proceeds in Superior Court under the ordinary course of the action.
Preliminary Notice
Mechanic Lien
File the Statement of Claim with the Prothonotary of the Superior Court within 180 days after completion of the structure.
Completion may also be measured from alternative statutory triggers, including an agreed contract-completion date, owner acceptance, receipt of 90% of the contract price, issuance of a certificate of completion, or completion of permanent financing.
Enforcement
In Delaware, the action to enforce the lien is incorporated into the Statement of Claim itself; filing the Statement of Claim in Superior Court commences the action.
After filing, the claimant must furnish a Writ of Scire Facias, which the sheriff serves on the owner along with a copy of the Statement of Claim.
The case then proceeds in Superior Court under the ordinary course of the action.
Delaware private project deadlines
Prime Contractor
Preliminary Notice: Not required. Delaware does not require any pre-work or preliminary notice from a prime contractor as a condition of mechanic lien rights.
Mechanic Lien: File the Statement of Claim with the Prothonotary of the Superior Court within 180 days after completion of the structure. Completion may also be measured from alternative statutory triggers, including an agreed contract-completion date, owner acceptance, receipt of 90% of the contract price, issuance of a certificate of completion, or completion of permanent financing.
Enforcement: In Delaware, the action to enforce the lien is incorporated into the Statement of Claim itself; filing the Statement of Claim in Superior Court commences the action. After filing, the claimant must furnish a Writ of Scire Facias, which the sheriff serves on the owner along with a copy of the Statement of Claim. The case then proceeds in Superior Court under the ordinary course of the action.
Subcontractors & Suppliers
Preliminary Notice: Not required. Delaware does not require any pre-work or preliminary notice from subcontractors or suppliers as a condition of mechanic lien rights.
Mechanic Lien: File the Statement of Claim with the Prothonotary of the Superior Court within 120 days after the date labor was last performed or materials were last furnished. The 120-day period also runs from the date final payment, including retainage, is due to the claimant, or from the date final payment is made to the general contractor who contracted directly with the owner.
Enforcement: In Delaware, the action to enforce the lien is incorporated into the Statement of Claim itself; filing the Statement of Claim in Superior Court commences the action. After filing, the claimant must furnish a Writ of Scire Facias, which the sheriff serves on the owner along with a copy of the Statement of Claim. The case then proceeds in Superior Court under the ordinary course of the action.
Remote Claimants
Preliminary Notice: Not required. Delaware does not require any pre-work or preliminary notice from remote claimants as a condition of mechanic lien rights.
Mechanic Lien: File the Statement of Claim with the Prothonotary of the Superior Court within 120 days after the date labor was last performed or materials were last furnished. The 120-day period also runs from the date final payment, including retainage, is due to the claimant, or from the date final payment is made to the general contractor who contracted directly with the owner. Use caution when the contracting party is a tenant rather than the owner; remote claimants working under a tenant still fall within the 120-day period, not the 180-day prime-contractor period.
Enforcement: In Delaware, the action to enforce the lien is incorporated into the Statement of Claim itself; filing the Statement of Claim in Superior Court commences the action. After filing, the claimant must furnish a Writ of Scire Facias, which the sheriff serves on the owner along with a copy of the Statement of Claim. The case then proceeds in Superior Court under the ordinary course of the action.
Delaware public works deadlines
Prime Contractor
Preliminary Notice: Not applicable. The prime contractor is the principal on the payment bond and cannot make a claim against its own bond; payment is pursued through contract remedies against the public owner.
Bond Claim: Not applicable. Mechanic liens cannot attach to public property in Delaware, and a prime contractor cannot claim against its own bond. Prime contractors pursue payment through contract remedies.
Lawsuit to Enforce Bond Claim: Contract remedies against the public owner, subject to any applicable notice-of-claim and limitations periods.
Subcontractors & Suppliers
Preliminary Notice: Not required. Delaware's Little Miller Act does not impose a preliminary notice requirement on subcontractors or suppliers, who may proceed directly to suit on the payment bond.
Bond Claim: No formal bond claim filing is required in Delaware; a claimant may proceed directly to suit on the bond. Best practice is to serve a written Notice of Intent to Make Bond Claim on the surety and prime contractor to open settlement discussions and potentially avoid litigation.
Lawsuit to Enforce Bond Claim: Commence suit on the payment bond within 1 year after final completion of the entire contract if the bond itself limits suit to 1 year, which is typical. If the bond contains no shorter limitation, the statutory period is 3 years after final completion of the entire contract.
Remote Claimants
Preliminary Notice: Not required. Delaware's Little Miller Act does not impose a preliminary notice requirement on remote claimants, who may proceed directly to suit on the payment bond. Coverage for remote claimants depends on the language of the bond; parties who contract with a subcontractor are protected only if the bond expressly extends coverage to them.
Bond Claim: No formal bond claim filing is required in Delaware; a claimant may proceed directly to suit on the bond if the bond's language covers the claimant. Best practice is to serve a written Notice of Intent to Make Bond Claim on the surety and prime contractor to open settlement discussions and potentially avoid litigation.
Lawsuit to Enforce Bond Claim: Commence suit on the payment bond within 1 year after final completion of the entire contract if the bond itself limits suit to 1 year, which is typical. If the bond contains no shorter limitation, the statutory period is 3 years after final completion of the entire contract.
Delaware Mechanic Lien Law Overview
Last updated June 2026 · Reviewed by Thomas Emalfarb, Esq.
Delaware construction mechanic lien rights are governed by 25 Del.C. §2711 et seq. This statutory framework protects the payment rights of contractors, subcontractors, laborers, and material suppliers who furnish labor, services, or materials for the improvement of real property in the State of Delaware. Mechanic liens are available for projects with a value exceeding $25.00.
Delaware mechanic lien law distinguishes between contractors who have a direct contract with the owner and have furnished both labor and materials, and all other persons who have performed or furnished labor or material. The filing deadlines and procedures differ depending on the claimant’s contractual relationship with the property owner and the nature of services provided.
A critical feature of Delaware mechanic lien law is the detailed statutory definition of “completion,” which includes multiple triggering events such as the date stated in the contract, issuance of a certificate of occupancy, owner acceptance of the structure, or the date permanent financing is completed. Understanding which completion event applies is essential for calculating mechanic lien filing deadlines. 25 Del.C. §2711(a) 1-9.
For public works projects, Delaware requires payment bonds for virtually all public work and provides limited mechanic lien rights. Subcontractors and materialmen on public projects must comply with private project timelines for mechanic lien purposes and may pursue bond claims under 29 Del.C. §6927.
Topics on This Page
Delaware Mechanic Lien Law: Key Topics
Navigate the critical compliance areas for Delaware construction mechanic lien law.
Notice Requirements
Preliminary notice obligations and statutory notice provisions for private and public works projects under Delaware law
Mechanic Lien Deadlines
Mechanic Lien filing deadlines, Statement of Claim requirements, completion definitions, and recording procedures for Delaware projects
Mechanic Lien Enforcement Deadlines
Suit filing requirements to perfect mechanic liens, bond claim enforcement timelines, and public works litigation deadlines
Frequently Asked Questions
What types of construction projects qualify for a mechanic lien in Delaware?
Delaware mechanic lien rights are available for private construction projects with a value exceeding $25.00. This includes projects to erect, alter, or repair structures on real property. For public works, payment bonds are required for virtually all projects, with mechanic liens available only in certain limited circumstances. 25 Del.C. §2711 et seq.; 29 Del.C. §6927.
Does Delaware require preliminary notices before filing a mechanic lien?
No. Delaware does not require contractors, subcontractors, or material suppliers to serve any preliminary notice before filing a mechanic lien or Statement of Claim on either private or public projects. This applies to direct contractors under 25 Del.C. §2711(a) and all other claimants under §2711(b).
What are the key filing deadlines for a Delaware mechanic lien?
Direct contractors who furnished both labor and materials must file within 180 days after completion of the project. 25 Del.C. §2711(a). All other claimants must file a Statement of Claim within 120 days after completion of labor or last delivery of material. 25 Del.C. §2711(b). Small labor claims under $100 must be filed between 20 and 30 days after last performance. 25 Del.C. §2732.
How does Delaware define ‘completion’ for mechanic lien filing purposes?
Delaware provides multiple definitions of completion under 25 Del.C. §2711(a) 1-9. For direct contractors, completion includes the contract date, receipt of 90% payment, final invoice submission, certificate of occupancy, owner acceptance, engineer/architect certificate, or permanent financing completion. For subcontractors, it includes the date final payment including retainage is due or the date final payment is made to the contractor.
Do I need to file a lawsuit to enforce a mechanic lien in Delaware?
Yes. Delaware requires that a mechanic lien be perfected by the filing of a lawsuit within the applicable time limits. Simply filing a mechanic lien or Statement of Claim is insufficient. A personal action for amounts owed may be included within the mechanic lien foreclosure lawsuit.
What are my payment rights on a Delaware public works project?
On public works projects, payment bonds are required for virtually all work. Subcontractors and materialmen may file suit on the bond within one year of the bidder’s last work if the bond so provides, or within three years of last work on the contract if the bond is silent. 29 Del.C. §6927. No special statutory notice provisions apply.
Do Delaware contractors need to register before working, and does it affect a mechanic lien?
Delaware guidance requires contractors to register with and obtain a business license from the Division of Revenue and to register with the Department of Labor’s Office of Contractor Registration before work begins. The mechanic lien chapter does not automatically void an unregistered contractor’s lien, but noncompliance can create administrative penalties, contract defenses, and practical obstacles to enforcing payment. Confirm business licensing and contractor registration before starting work.