LienLock is a deadline watchdog for specialty subcontractors. We track your active jobs, monitor preliminary notice and lien filing windows, and alert you before it's too late to act.
When a GC doesn't pay, your only legal protection is a mechanic's lien filed against the property. But California law gives you a hard deadline — miss it, and you lose all legal leverage. Forever.
Most specialty subs track these dates on a spreadsheet, or nothing at all. That works until the month you're slammed with three new jobs, a GC goes silent on a $150,000 invoice, and you find out the lien window closed two weeks ago.
LienLock makes sure that never happens.
Submit active projects via a simple form or email. Job name, GC, address, contract date, first date of work.
LienLock applies the California lien rule set — preliminary notice windows, lien filing deadlines, unpaid invoice balances.
Escalating alerts at 60, 30, 14, 7, and 1 day out. Weekly risk digest every Monday. You always know where you stand.
We flag the window. Your attorney or lien service handles the filing. We make sure you know exactly when to call them.
Start with a one-time audit. Stay for the peace of mind.
Audit all your active projects. Get a complete lien deadline calendar and flag anything urgent. Delivered within 48 hours.
Ongoing monitoring for up to 20 active projects. Weekly digest, escalating alerts, always watching.
For larger subs running 50+ concurrent projects who need frictionless intake and GC payment history.
If you do commercial work in California and you're not a large GC with a legal team, LienLock was built for you. You don't need Procore. You don't need a $40,000 enterprise platform. You need someone watching the dates.
LienLock is not a law firm and does not provide legal advice. We track project and payment facts, estimate deadline windows based on the California lien rule set, and alert you early enough to confirm with your attorney or lien service before taking action. One phone call to your lien service is all it takes — we make sure you know when to make it.
Start with a one-time audit. We'll show you exactly where every active job stands — and whether anything is already at risk.