When can a material supplier perfect a mechanics lien?

When can a material supplier perfect a mechanics lien?

• A. Before the goods are installed in the structure
• B. After the goods have been installed in the structure
• C. At the time goods are delivered
• D. Only after a court judgment

Answer: (B)

The essential idea is that a material supplier’s mechanics lien applies to materials that actually become part of the project. The lien is perfected when those materials are installed and incorporated into the structure, not just delivered or sitting unused. Once the goods are installed, they have contributed to the improvement, giving the supplier a secured claim against the property. A court judgment isn’t required to create the lien itself—the lien is filed to protect the unpaid claim—so waiting for installation aligns with tying the claim to the actual, permanent part of the project. Delivering materials without installation doesn’t yet attach to the property in the same way, and waiting until installation ensures the lien rightly corresponds to the claimed improvement.