The definition of a mechanic’s lien is a legal claim against real property that ensures payment for work or materials provided to improve the property.
A mechanic’s lien provides a security interest in the property to the laborer or materials supplier until the property owner pays for the value of the work or goods. Because the security interest attaches to the property where the work was done, if the owner does not pay, then the holder of the lien may be able to force a foreclosure sale of the property.