California Specialty Subcontractors

Don't lose your lien rights
because a date slipped.

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.

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One missed deadline can cost you everything.

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.


Simple. Automated. Always watching.

1

Tell us about your jobs

Submit active projects via a simple form or email. Job name, GC, address, contract date, first date of work.

2

We track every deadline

LienLock applies the California lien rule set — preliminary notice windows, lien filing deadlines, unpaid invoice balances.

3

Alerts before it's too late

Escalating alerts at 60, 30, 14, 7, and 1 day out. Weekly risk digest every Monday. You always know where you stand.

4

You make the call

We flag the window. Your attorney or lien service handles the filing. We make sure you know exactly when to call them.


Simple pricing. No contracts.

Start with a one-time audit. Stay for the peace of mind.

One-Time
$999 flat

Audit all your active projects. Get a complete lien deadline calendar and flag anything urgent. Delivered within 48 hours.

  • Full audit of active projects
  • Lien deadline calendar
  • Traffic-light risk status
  • Unpaid invoice summary
  • Delivered in 48 hours
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Growth
$499 /month

For larger subs running 50+ concurrent projects who need frictionless intake and GC payment history.

  • Up to 50 active projects
  • Everything in Core
  • Auto document intake
  • GC slow-pay scoring
  • Monthly review call
  • Priority SMS alerts
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Built for the 5–50 person specialty sub.

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.

Concrete Electrical HVAC / Mechanical Plumbing Framing / Drywall Structural Steel Roofing Painting

Ready to stop worrying about lien deadlines?

Start with a one-time audit. We'll show you exactly where every active job stands — and whether anything is already at risk.

Get Your $999 Audit Email us first