9225 Charles Smith Ave, Rancho Cucamonga, CA 91730
(800) 517-0263

Integrity you can trust.

Insurance in Ontario

Hammer Insurance Services, Inc


Stephani Castillo

Hours of Operation

M-F: 9:00am-7:00pm
Sat: 9:00am-5:00pm
Sun: Closed


938 N Mountain Ave
Ontario, CA 91762

Phone numbers

Direct: (909) 267-3690
Fax: (909) 267-3695

Message Us

We are on the map

Ontario Branch


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Deyon Andrews
Keyla was a great help to all on my insurance needs. She was able to answer questions. Thank you so much
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Kelly Lerch
Stephanie was incrediblely helpful when my boyfriend and I needed insurance immediately. Hammer Insurance had the best rate around and the best customer service! Thank you again!!!
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Silbestre Pelayo
Props to Keyla being such a helpful person to get insurance today along car registration🤗
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Mark Lazalde
It was busy and i was in a rush, Stephanie work quickly and got me out with enough time to eat before i had to get to work. She was not only helping me but answering the phones and greeting walk-in customers, no way i could of handled that. Great job ladies
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Jerry Randolph
What a great experience with Sylvia B Oropeza, she was very knowledgeable and got us the best price we could have asked for. And I would like to give a special thank you to the store manager Stephani Castillo, for closing the deal! Great customer service ladies, we will see you again real soon.

Find the nearest branch.

From our clients to our agents, to our employees at corporate, a company is great when its people are great; Hammer Insurance will settle for nothing less. We work to represent you, the customer, in finding the insurance products that you need with a wide variety of options. Since 2004, we continue to develop our own methods and we stand and live by our slogan, "Integrity you can Trust"!


Auto Insurance

Satisfy the financial responsibility laws.

Home Insurance

Own or rent, there is a policy for you.

General Liability

Protect your business against lawsuits.

Registration Renewal

Renew your registration and get new stickers.

Hammer Insurance Services, Inc

9225 Charles Smith Ave
Rancho Cucamonga, CA 91730
Phone numbers:

(909) 243-7300
(909) 243-7303