General contractors, subcontractors, laborers, material suppliers, equipment lessors, and design professionals (including landscaping providers) have mechanics lien rights. However, for equipment lessors, a lien is only allowed on commercial projects where the claim is greater than $5,000.
For owner-occupied residential projects of 4 units or less, only parties that contracted directly with the owner-occupier have the right to file a mechanics lien, unless the owner has signed a Consent of Owner allowing mechanics liens by unpaid subs and suppliers.
You have 6 months from the last date on which you performed labor or delivered materials to the project in which to file your lien. Be sure to calculate that "last date" from the date on which the contracted work was substantially complete. Warranty work done after substantial completion might not constitute performing work or delivering materials.