What Is a Mechanics Lien in Connecticut — Complete 2026 Guide
In Connecticut, a mechanics lien is called a Certificate of Mechanic's Lien under Conn. Gen. Stat. § 49-33 et seq. All claimants — GCs, subcontractors, sub-subcontractors, and suppliers — have 90 days from last furnishing to file with the Town Clerk of the town where the property is located. Connecticut has no counties for recording purposes; its 169 towns each maintain their own land records. No preliminary notice is required. The lien must be sworn and notarized. Enforcement must commence within 1 year of filing under Conn. Gen. Stat. § 49-39.
Connecticut 90-Day Filing Deadline — Conn. Gen. Stat. § 49-34
Under Conn. Gen. Stat. § 49-34, the Certificate of Mechanic's Lien must be filed within 90 days from the date the claimant last furnished services, materials, or equipment to the Connecticut construction project. This 90-day deadline applies equally to general contractors, subcontractors, sub-subcontractors, and material suppliers. The clock starts from the actual last furnishing date — not the invoice date, not the payment due date, and not the date the project owner declares completion. There are no extensions and no grace periods. Missing the 90-day deadline permanently extinguishes lien rights under Connecticut law.
Town Clerk Filing — Connecticut's Unique Recording System
Connecticut has no county governments for recording purposes. All 169 Connecticut towns maintain their own land records through a locally elected Town Clerk. Every Certificate of Mechanic's Lien must be filed with the Town Clerk of the specific town in which the improved property is physically located. Common filing towns include Hartford, New Haven, Bridgeport, Stamford, Waterbury, Norwalk, Danbury, Greenwich, New Britain, and West Hartford. Filing with any office other than the correct Town Clerk — including any county office — creates no valid lien on the property.
Certificate of Mechanic's Lien — Required Contents and Sworn Requirement
Connecticut's lien document is specifically called a Certificate of Mechanic's Lien. The certificate must include: the claimant's full name and address, the property owner's name, a legally sufficient description of the property, the amount claimed, a description of the services or materials furnished, and the date of last furnishing. Critically, the certificate must be signed under oath before a notary public — it is legally invalid unless sworn and notarized. An unsworn or unnotarized certificate will not create a valid lien regardless of how timely it is filed.
Enforcement — 1-Year Window Under Conn. Gen. Stat. § 49-39
After filing a valid Certificate of Mechanic's Lien with the Town Clerk, the claimant must commence a foreclosure action in Connecticut Superior Court within 1 year of the filing date under Conn. Gen. Stat. § 49-39. Connecticut's 1-year enforcement window is more generous than states like California (90 days) and Ohio, but must still be tracked carefully. A lien that expires after 1 year without enforcement permanently loses its security interest in the property. Most Connecticut lien disputes settle before foreclosure is filed — the existence of a recorded lien clouding the title is a powerful payment incentive.
Frequently Asked Questions
How long do I have to file a mechanics lien in Connecticut?
You have 90 days from the date you last furnished labor or materials to file a Certificate of Mechanic's Lien with the Town Clerk under Conn. Gen. Stat. § 49-34. This deadline applies to all claimant tiers.
Where do I file a mechanics lien in Connecticut?
File with the Town Clerk of the town where the property is located. Connecticut has no county recorders — its 169 towns each maintain their own land records through the Town Clerk.
Is a preliminary notice required in Connecticut?
No. Connecticut has no preliminary notice requirement before filing a Certificate of Mechanic's Lien on private construction projects.
How long do I have to enforce a Connecticut mechanics lien?
You must commence a foreclosure action within 1 year of the filing date under Conn. Gen. Stat. § 49-39. After 1 year, the lien expires and cannot be enforced.
Who can file a mechanics lien in Connecticut?
General contractors, subcontractors at any tier, sub-subcontractors, material suppliers, equipment lessors, architects, engineers, and other design professionals all have lien rights under Conn. Gen. Stat. § 49-33.