How to file a mechanics lien in New Hampshire
Unpaid for work or materials on a New Hampshire construction project? Preserving the lien involves attachment of the property. Use this guide to organize the filing questions, then check the cited law against your role and project.
NH · PRIVATE CONSTRUCTION CLAIMS
Preserving the lien involves attachment of the property.
Section 447:9 generally continues the lien for 120 days after the covered services or materials. Section 447:10 describes securing it by attachment while it continues.
Notices to check before filing
Check the notices required for your position in the contract chain and obtain advice on the attachment procedure before the period expires.
Where and how to file in New Hampshire
The statutory route involves attachment, with the writ and return identifying that purpose. Confirm the required court procedure.
A filing mistake to avoid
An ordinary document-recording request is not a substitute for securing an attachment.
Prepare your project records
Gather the owner and hiring-party details, last furnishing records, notices, contract, and itemized unpaid account.
- Identify who hired you and whether the property is privately owned.
- Confirm your notice obligations and the event that starts each time limit.
- Verify the owner and property description using appropriate records.
- Reconcile invoices, payments, credits, and disputed amounts.
- Keep filing and service receipts, and calendar any enforcement deadline.
After the claim is filed
Filing does not guarantee payment or establish that a disputed claim is valid. Preserve the filed document and delivery evidence. If payment arrives, arrange the required release or satisfaction. If the balance remains unpaid, seek advice about enforcement before its separate deadline expires.
Help with your unpaid construction account
This state includes a court, attachment, or arbitration step that may require legal assistance. Ask support to confirm what administrative help is available before buying a lien service. Court representation and legal advice are outside The Credit App’s administrative recording service.
Review the lien service · Compare service fees · Ask support about your project
Sources for New Hampshire lien requirements
New Hampshire Revised Statutes §447:10 (2025 text, Justia)
Sources checked September 23, 2026. This is a general guide to private construction claims, not a calculation of your deadline or legal advice. The cited edition and later amendments must be checked for your project.
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