LocalNotaryFinder

24-Hour Notary in Ontario, CA

Need a notary right now in Ontario, California? Several notaries in Ontario are available around the clock — nights, weekends, and holidays. Emergency notary services are ideal for last-minute real estate closings, hospital signings, and urgent legal documents.

4 notarys listed in Ontario, CA.

MPI 24/7 Mobile Notary & Apostille Services

★★★★½4.8(63 reviews)

8244 Ramona Ave, Rancho Cucamonga, CA 91730

Hours
  • Friday: Open 24 hours
  • Monday: Open 24 hours
  • Saturday: Open 24 hours
  • Sunday: Open 24 hours
  • Thursday: Open 24 hours
  • Tuesday: Open 24 hours
  • Wednesday: Open 24 hours

Zeeck’s Mobile Notary Service

★★★★★5.0(23 reviews)

3348 S Myrtle Dr, Ontario, CA 91761

Hours
  • Friday: Open 24 hours
  • Monday: Open 24 hours
  • Saturday: Open 24 hours
  • Sunday: Open 24 hours
  • Thursday: Open 24 hours
  • Tuesday: Open 24 hours
  • Wednesday: Open 24 hours

Bailey Notary

★★★★★5.0(1 reviews)

1995 E Harvard Privado APT B, Ontario, CA 91764

Hours
  • Friday: Open 24 hours
  • Monday: Open 24 hours
  • Saturday: Open 24 hours
  • Sunday: Open 24 hours
  • Thursday: Open 24 hours
  • Tuesday: Open 24 hours
  • Wednesday: Open 24 hours

Wet Ink Notary LLC

★★★★★5.0(17 reviews)

854 Harvest Ave, Upland, CA 91786

Hours
  • Friday: Open 24 hours
  • Monday: Open 24 hours
  • Saturday: Open 24 hours
  • Sunday: Open 24 hours
  • Thursday: Open 24 hours
  • Tuesday: Open 24 hours
  • Wednesday: Open 24 hours

Frequently Asked Questions — 24-Hour Notary in Ontario, California

Are there notaries open 24 hours in Ontario, CA?

Yes — 4 notaries in Ontario list 24-hour availability. These are typically mobile notaries who accept after-hours calls for urgent document needs. Always call ahead to confirm availability.

How much does an emergency notary cost in Ontario?

After-hours and emergency notary services in Ontario, CA typically add a premium on top of the standard notarization fee. Expect $50–$200 total for a late-night or weekend call, depending on urgency, travel distance, and document complexity.

What documents can I get notarized at 2am in Ontario?

A 24-hour notary in Ontario can notarize the same documents as any commissioned notary — powers of attorney, real estate documents, affidavits, loan documents, healthcare directives, and more. There is no restriction on document type based on the time of day.

Can I get a notary on the weekend in Ontario?

Yes. Many mobile notaries in Ontario, California work weekends and holidays, especially for real estate closings and hospital visits. Search the listings above and call to confirm Saturday or Sunday availability.