Wyoming mechanic's liens

Who and what this applies to

Construction liens under Wyoming Statutes Title 29, Chapter 2.

Thresholds and scope

Contractors have a 150-day filing period; other claimants generally have 120 days, with the statutory trigger depending on the claimant.

The rules

• Section 29-2-112 requires preliminary notice to the record owner or agent: a contractor sends it before receiving any payment, including advances; subcontractors and material suppliers send it within 30 days after first furnishing and copy their contractor. Missing this notice deadline bars their lien. Source
• Section 29-2-106(a) uses the earlier of last contract work/materials and project substantial completion for its ordinary filing trigger; it separately specifies a subcontractor’s last work at the contractor’s or authorized person’s direction. Apply the 150-day contractor or 120-day other-claimant period to the applicable trigger. A recorded substantial-completion notice creates the statutory rebuttable presumption but does not extend an earlier filing deadline. Source
• Section 29-2-107 requires written notice of the amount and debtor to the record owner or agent at least 20 days before filing the lien statement, in the prescribed statutory format. Source
• Section 29-2-109 requires suit to foreclose or enforce within 180 days after filing the lien statement. Source

Deadlines

Preliminary notice and the separate 20-day notice precede the applicable filing deadline; enforcement follows within 180 days of filing.

Primary sources

• title29.pdf

Sources reviewed 2026-09-30. This guide covers the projects and rules stated above.

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