Should a contractor file a mechanics lien or just keep calling about an unpaid invoice?
Mechanics lien vs collection call — which should a contractor use?
Short answer
File the mechanics lien on time, even if you also keep calling. Lien deadlines are strict and short — typically 30 to 120 days from your last day of work, depending on the state. Miss the deadline and you lose the lien option permanently, with no extension and no judicial discretion. Most contractors should file the pre-lien notice as a matter of course on every job over a threshold dollar amount, then decide separately whether to pursue collection by phone, in court, or both. The lien protects your rights; the call protects the relationship.
Contractors face a deadline problem most service businesses do not. Mechanics lien rights expire fast and irreversibly. Miss the window and the right is gone — there is no extension, no good-cause exception, and no judicial discretion in most states. The lien clock starts on your last day of work or last delivery of materials, not on the invoice date and not on the customer going past due.
State deadlines vary widely. California requires the general contractor to record within 60 days from a recorded Notice of Completion or 90 days from substantial completion if no notice was recorded. Subcontractors and material suppliers in California have 30 days from the Notice of Completion. Texas operates on a calendar formula — first-tier subs send invoices by the 15th of the second month after the work month, formal pre-lien notices by the 15th of the third month, and the lien affidavit by the 15th of the fourth month. Oregon requires construction notices within 8 working days of starting work. Nevada requires a Notice of Right to Lien within 31 days of first work or delivery. Treat your specific state's rules as gospel; do not generalize.
Pre-lien notice is the cheap insurance. In most states the pre-lien — sometimes called a preliminary notice, NOI, or NTO depending on jurisdiction — preserves your lien option without committing to file. Most contractors should send the pre-lien on every job over a threshold dollar amount, even when payment is current and on time. The cost is a piece of paper and a few dollars in postage; the value is keeping the option alive in case the relationship goes sideways three months later.
Lien filing versus collection call is not either/or. The lien is a property right — it puts a cloud on the title that survives most operational events including refinance and sale, and it usually moves the customer's payment up the priority list because they cannot close on a sale or pull permits with an active lien. The collection call is a relationship move — it preserves the customer if they were just slow, gives them a chance to clarify a dispute, and keeps the option of repeat business open. Both can run simultaneously and often should.
When to skip the lien: residential customer where the dollar amount is small, the lien filing fee plus title search exceeds your expected recovery, and the relationship value is high. When the customer pays on day 5 of a polite first call, you can withdraw the pre-lien before the deadline closes; the pre-lien did not hurt anything in the meantime.
When to skip the call and go straight to lien: commercial general contractor who has stopped responding, large dollar amount, deadline approaching. Filing first and talking after is the right move when the calendar is the constraint. The lien filing itself often produces a phone call from the customer's lawyer or accounts payable within 48 hours.
If you are a contractor, the call automation is a layer on top of your lien discipline, not a replacement for it. Syntharra handles the day-3 polite call and the consistent follow-up. Your lien service or your in-house process handles the deadlines. Treating the two as substitutes is how contractors lose lien rights and end up in a worse position than they started.