California Mechanics Lien Filing Service
We prepare, record, and serve your mechanics lien. $199 flat — $0 with Unlimited. County fees and Certified Mail at cost.
How lien filing works
From signed claim to recorded lien — handled for you.
- 1
Complete the 4-step form
Enter the job, the amount owed, and the parties. Sign the verified claim electronically — no notary needed.
- 2
We record at the county
We prepare the Claim of Mechanics Lien per Cal. Civ. Code §§ 8410–8424 and record it with the county recorder.
- 3
Owner served by Certified Mail
The Notice of Mechanics Lien is served on the owner (§ 8416), with a Proof of Service per CCP § 1013a.
- 4
You get the recorded lien
The recorded instrument, USPS tracking, and Proof of Service all land in your dashboard.
What's included
- ✓Recordable Claim of Mechanics Lien, prepared from your job details
- ✓County recording — we handle the recorder's office
- ✓Notice of Mechanics Lien served on the owner (§ 8416)
- ✓Proof of Service per CCP § 1013a, signed by us
- ✓USPS Certified Mail tracking on your dashboard
- ✓Lien Release when you're paid — $99, or $0 with Unlimited
Pricing
Unlimited filings for a flat fee, or pay as you go.
Unlimited
Billed annually
Unlimited preliminary notices, mechanics liens, stop notices, and bond claims — plus lien waivers and notice of completion monitoring.
Pay-As-You-Go
- Preliminary notice$49
- Lien recording$199
- Stop notice$199
- Bond claim$199
No subscription required.
What California contractors say
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, CAI 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, CAThe 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, CASent an intent to lien letter from my truck on Thursday and had a check by Tuesday. We didn't even need to record the actual lien.
JTJim T.Landscaping · Santa Rosa, CAJuggling 5 active jobs used to mean drowning in paperwork. Notice Harbor lets us track and process our notices in one dashboard.
JLJessica L.Electrical contractor · San Francisco, CADeadline tracking is a lifesaver. The platform alerted me when a Notice of Completion was recorded so I didn't miss my lien window.
SKSarah K.Commercial painting · Stockton, CA
Frequently asked questions
Related guides
Ready to record your lien?
We prepare, record, and serve your California mechanics lien — flat $199, or $0 with Unlimited.
Start My LienThis page is general information, not legal advice, and does not create an attorney–client relationship. California lien and notice deadlines are strict and fact-specific — “completion” alone can be triggered by actual completion, the owner’s occupancy or use, or a 60-day cessation of labor. Notice Harbor is not a law firm. Confirm any deadline that matters to your claim with a licensed California construction attorney.