Notice Harbor

File preliminary notices in minutes.

Auto-filled from public records, double-checked by an expert, and mailed by USPS Certified Mail.

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  • Filed in minutesOne simple online form
  • Reviewed by expertsEvery filing verified before mailing
  • Court-ready proofUSPS certified mail with tracking
  • Purpose built for CASpecific lien law focus

Verified, accurate research

A preliminary notice sent to the wrong owner protects nothing. This is the part we obsess over.

  • Property records and permit data auto-fill the owner, GC, and lender information
  • Expert audits catch inconsistencies before any notice is sent
  • You can review exactly what will appear on the notice before anything mails
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Project Compliance Checklist

  • Wrong property owner
  • General contractor
  • Construction lender
  • Job description
Construction team reviewing project blueprints and a laptop on a job site

Secure your lien rights and get paid what you're owed.

If a GC doesn't pay you, your strongest tool is a mechanics lien. But you can only file one if you sent a preliminary notice within 20 days of starting work.

A preliminary notice is just a letter telling the owner, the GC, and the lender that you're on the job. It isn't a lien and it isn't a threat, and good GCs expect it.

Why subcontractors choose Notice Harbor

One mistake can cost you payment. Notice Harbor ensures accuracy, speed, and compliance, built specifically for California contractors.

Other providers can leave you exposed

  • Wrong parties listed
  • Missed deadlines
  • County clerk errors
  • Delayed filings
  • Lost lien rights

How Notice Harbor keeps you covered

  • Double-checked research
  • California lien law focus
  • Next-day lien filings with eRecording
  • Multiple public-record data sources
  • Real human support on every filing

What our customers say

Real subs who use Notice Harbor to get paid.

  • “Filing prelims used to kill half my day. This system pulls the data automatically and I get my prelims done in under five minutes now.”

    CMCarlos M.Roofing contractor · Oakland, CA

  • “I don't have an admin team. This handles the compliance paperwork so I can stay on the job site. Worth every penny.”

    DWDavid W.HVAC contractor · San Diego, CA

  • “The support team is phenomenal. When I had a question on a complex project, a real person walked me through it in minutes. They actually understand the trades.”

    RHRobert H.Plumbing contractor · Anaheim, CA

Frequently asked questions

Preliminary notices by county

We serve every California county. Find the recording office and local details for yours.

Ready to get paid on your next California job?

Your first preliminary notice is free; you just cover the postage.

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