Delaware Mechanics Lien
Deadlines & Filing Rules

Every notice, deadline, and recording requirement for a Delaware construction lien, drawn from 25 Del. C. §§ 2711, 2712, 2714 and the same rule engine that calculates deadlines for our filing customers.

Delaware lien rules at a glance

Preliminary notice
Not required to preserve lien rights
Lien filing deadline
within 6 months after completion of the project (varies by role)
Notarization
Required
The lien claim must be sworn to under oath
Where to record
Prothonotary (court clerk) for the county
E-recording
Varies by county
Ask the recording office whether it accepts electronic recording before you rely on it.

Who can file a mechanics lien in Delaware

Lien rights depend on where you sit in the contracting chain. Tenant-ordered improvements can support a lien in Delaware.

Claimant Lien rights in Delaware
General contractor (direct contract with the owner) Yes
Subcontractor (hired by the general contractor) Yes
Sub-subcontractor (hired by a subcontractor) Yes
Material supplier to the owner Yes
Material supplier to the general contractor Yes
Material supplier to a subcontractor Yes

Delaware mechanics lien deadlines

Not required to preserve lien rights.

Calculate your Delaware deadlines

Enter your role and project dates to turn the rules below into calendar dates. For other states, use the mechanics lien deadline calculator.

Project type

Choose your role to see which dates you need.

These dates come from the same rules our lien filing service uses. They are not moved for weekends or holidays. Deadlines turn on facts specific to your project. Confirm with counsel before relying on them.

Mechanics lien filing deadline

The last day the lien can be recorded against the property.

Who Project type Deadline
General contractors All projects Within 6 months after completion of the project
Subcontractors, sub-subcontractors, suppliers to the owner, suppliers to the general contractor, and suppliers to a subcontractor All projects Within 4 months after last furnishing labor or materials

Delaware does not require a notice of intent before recording a lien, but sending one is often what gets the invoice paid.

Recording and enforcing a Delaware lien

Recording the lien

Record with the prothonotary (court clerk) for the county. Whether electronic recording is accepted varies by county, so confirm with the recording office and build mailing time into the deadline. The lien must be notarized. The lien claim must be sworn to under oath.

After recording

Delaware does not require a separate notice after the lien is recorded, though most claimants send one anyway to prompt payment.

Wrongful lien exposure

We found no dedicated wrongful-lien penalty in Delaware's lien statute. An owner can still ask a court to remove an inflated or baseless lien, so claim only what you are owed.

Practitioner notes for Delaware

Delaware handles mechanics liens through the courts rather than the land records. The claim is a statement of claim filed with the Prothonotary of the Superior Court in the county where the structure is located (25 Del. C. § 2712(a)). When labeled as a complaint, it also serves as the lawsuit, and the case proceeds by writ of scire facias (25 Del. C. § 2714). There is no separate, later deadline to sue; the filing deadline is the deadline that matters. A contractor who contracted directly with the owner and furnished both labor and materials must file within 180 days after completion of the structure. The statute also treats the claim as timely if filed within 180 days of certain other events, such as the final invoice, a certificate of occupancy, or receipt of 90 percent payment (25 Del. C. § 2711(a)). Everyone else must file within 120 days after finishing their labor or making their last delivery of materials (25 Del. C. § 2711(b)). Note that these are counted in days, not months. The statement must list the parties, the amount claimed, the work or materials, the start and finish dates, and the property, and state that the work was done on the credit of the structure. It must be supported by the claimant's affidavit that the facts are true (25 Del. C. § 2712(b), (c)). Because the filing is a court pleading, many claimants use counsel; confirm with counsel on form and service of the writ.

These notes summarize the statute as we read it.

Statutory sources: 25 Del. C. §§ 2711, 2712, 2714. Read the Delaware lien statute. Deadlines turn on facts specific to your project. Confirm with counsel before relying on them.

Filing a Delaware mechanics lien

Delaware liens are filed through the courts by an attorney, so we do not sell a self-serve Delaware filing. Tell us about the project and we connect you with a Delaware attorney who handles construction lien filings.

Delaware mechanics lien FAQ

How long do I have to file a mechanics lien in Delaware?
The Delaware lien must be recorded within 6 months after completion of the project. The deadline differs by claimant role and project type, so check the table above for your situation.
Do I need to send a preliminary notice in Delaware?
No. Delaware does not require a preliminary notice to preserve lien rights, although sending one is still an effective way to get paid before a lien becomes necessary.
Does a Delaware mechanics lien need to be notarized?
Yes. The lien must be notarized before it is recorded. The lien claim must be sworn to under oath.
Where is a mechanics lien filed in Delaware?
With the prothonotary (court clerk) for the county. Whether electronic recording is accepted varies by county, so check with the recording office and allow time for mailing and processing when working back from your deadline.
Can a subcontractor file a mechanics lien in Delaware?
Yes. Subcontractors have lien rights in Delaware, and so do sub-subcontractors.

This page summarizes Delaware lien law for general information and is not legal advice. Deadlines depend on your role, project type, and dates; confirm them against the statute or with counsel before relying on them.