Wyoming Notice Requirements

General Contractors — No Preliminary Notice Required

Under Wyoming law, general contractors who have a direct contract with the property owner are not required to serve a preliminary notice before filing a mechanic lien. The direct contractual relationship between the general contractor and the owner is sufficient to establish the basis for a mechanic lien claim.

However, general contractors should maintain detailed records of all contracts, change orders, and correspondence to support any future mechanic lien claim.

Subcontractors & Suppliers — 30-Day Notice (Commercial)

Subcontractors and material suppliers on commercial projects must provide written notice to the property owner within 30 days of first furnishing labor or materials. This notice is intended to inform the owner of the subcontractor's or supplier's involvement in the project and potential mechanic lien rights.

The notice must identify the claimant, describe the nature of the labor or materials being furnished, and identify the property. Failure to provide timely notice on commercial projects may impair mechanic lien rights.

Public Works — Bond Claim Notice (Wyo. Stat. §16-6-121)

On public works projects in Wyoming, a payment bond is required where the general contractor's contract exceeds $150,000, and mechanic liens cannot be filed against public property. Subcontractors and suppliers pursue payment through a claim on that payment bond rather than through a lien.

A subcontractor or materialman not in privity with the general contractor must give written notice of its right to protection under the bond no later than 60 days after the date on which its labor or materials are first furnished.

The notice must be sent to the general contractor by certified mail or electronic means, or delivered to and receipted by the general contractor or its agent. Notice by certified mail or electronic means is effective on the date it is mailed or sent electronically.

The notice must be in writing, must state that it is a notice of a right to protection under the bond or guarantee, and must be signed by the subcontractor or materialman. It must include:

• The subcontractor or materialman's name, address, and phone number, and the name of a contact person.
• The name and address of the subcontractor's or materialman's vendor.
• The type or description of the materials or services provided.

Service Methods & Best Practices

All Wyoming construction mechanic lien notices should be served by certified mail, return receipt requested, or by personal delivery with documented proof of receipt. Maintaining a detailed log of all notices sent is essential for protecting mechanic lien and bond claim rights.

National Lien & Bond provides attorney-network compliance and recovery services to help Wyoming construction professionals meet all notice requirements and protect their payment rights.