We are committed to providing the best automobile coverage at the most affordable rates possible.


We offer a wide selection of homeowner insurance products and coverage options to meet your needs.

Life Insurance

You work hard to provide your loved ones with a good life.


From motorcycles to boats or jewelry to personal liability, we offer insurance products to protect you.


We understand business insurance and will offer a customized insurance package that covers your business.


Thank you David Duncan, you have always taken excellent care of our family and friends! I expect Duncan Insurance Services to explode in business because I tell everyone I know that your office rocks! Thanks for always making yourself available and especially for making every effort to make sure you offer what's best and most affordable for our family!

Diana F.

There are 3 reasons I would choose Duncan Insurances over a larger venue. First, Dave did such a thorough job in finding us all the possible discounts we could get, such as using my husband's Geology degree for a "scientist" discount. I know we are getting the best possible deal out there. Second, he's easily reachable & readily available to respond to all our questions, and gave us some good advice regarding a recent traffic ticket I had. Finally, I like dealing with a "live" person who answers the phone when I call, instead of getting one of those ridiculous phone-trees where I have to press 5 numbers before getting a live person. Overall, it's the personable, quality service I receive, as well as being treated as a valued customer that will make me stay with Duncan Insurance Services for the long-haul.

Dr. Tricia H.
Glendora, CA

Dave Duncan has been my agent for about 10 years. I feel fortunate that he is my agent. He is available, knowledgeable and communicative. He has helped me with a variety of insurance issues over the years by taking care to understand my needs and doing what was necessary to satisfy me as a customer. I doubt there are many like him. He stands for service to his customers. I strongly endorse him and would encourage others to see what he can do for you.

Bruce G.
Orange, CA

I have been an insurance defense attorney for over 20 years. I know insurance companies and their agents. I choose Duncan Insurance for my personal auto and homeowners. When I am in the zone preparing for trial or in trial, David always has my back. I never have to worry about my insurance needs or status. He not only knows what he is doing, he actually cares about his clients. A no brainer.

Marc L., Esq.

It has been a pleasure working with David Duncan on some of my client's personal insurance. I am a commercial lines broker and I can always count on David coming through for my clients. He is an efficient, knowledgeable, and professional agent.

John M.
Vice President
Orion Risk Management

David Duncan has been insuring my family for 10 years. His service has been extremely satisfying. One example, we needed to insure our yacht for a period while in South Florida. When no one else was able to secure a policy for us, Dave was able to do so with an excellent carrier and for an affordable price. I would highly recommend Duncan Insurance Services to any of my family of friends.

Steve K.
Business Owner
La Verne, CA

David has been our agent for many years, insuring my whole family and has been the best insurance agent I've ever dealt with. He returns call and e-mails promptly and always takes the time to answer any questions or concerns that we have about our home and auto policies. Even if I've already asked and he's answered the same question 3 times he remains ever curteous, kind and patient. He also always stays on top of our policies making sure that we have the best coverage for the best price.

Clare and Bill G.

David handles both my auto and home policies and has helped with claims for both. He found me the best rates possible that met my family's needs and has delivered superior customer service. It's reassuring to know that I have some one I can count on when I have questions or concerns I need addressed. I‘m a client for life and have referred many friends and family to him … all of whom share the same opinion.

Christian P.

Moving to the United States from abroad in its own right was challenging inclusive of securing insurance. Duncan Insurance was able to secure us both home and auto insurance at very competitive rates and made the process real easy. The real test is when things go wrong and a claim gets submitted. This is where Dave and his team were a call away and where superb in assisting us and getting things done within the Insurance firm. I highly recommend Duncan insurance.

Chris O.
Advantage Sales and Marketing

David C. Duncan Insurance has always been there when I needed them. Ever since I switched all it takes is a phone call. Whether its for adding a vehicle, submitting a claim, changing coverage or checking rates, David has always been helpful, courteous and goes that extra mile for me. Would recommend for all your insurance needs.

Tim Rief and Associates, Inc.
Mission Viejo, CA

In today's internet driven age it is easy to underestimate the value of having your own personal and dedicated insurance agent. A few years back I was vacationing abroad and I had some questions regarding coverage on my auto policy. I called Duncan Insurance from my cell phone and all my concerns were immediately answered. Not only did I gain peace of mind but it also gave me the freedom to enjoy my time away during holiday.

Sal M.
Long Beach, CA

As customers of Duncan Insurance Services, my husband and I receive top of the line service and attention. In an era of "kiosks and email reply's" David takes the time to contact us personally. We feel valued and secure, knowing that David has OUR best interest in mind. It's this kind of ethic, service and trust that is hard to come by.

Thank You!
Rudy and Maureen S.

David C. Duncan Insurance Services stands out above the rest by providing comprehensive insurance plans, competitive premiums with stable carriers, and outstanding customer service. I would never consider switching agents.

Carrie S.
Aliso Viejo, CA

I've had AAA coverage for over 10 years prior, and David C. Duncan Insurance Services coverage FAR exceeded theirs and saved me a ton of money at the same time. Thank you for all your help. This was one of the best decisions I've made.

Adrese R.
Trabuco Canyon, CA

David at Duncan Insurance Services is extremely thorough and is always willing to go above and beyond the normal call of duty in order to assist with any auto insurance coverage. I appreciate David's professionalism and I know I can count on David to provide outstanding service whenever I call him for assistance. As a result of David's excellent customer service, he consistently exceeds my expectations when it comes to client service. I would highly recommend David to anyone or any organization.

Zino C.

David Duncan has saved my family a lot of money over the past 15 years we've been insured with him. I never truly appreciated the value he provided until our home was burglarized in 2006 and we had to make a claim. He was very compassionate and understanding and assisted us through the entire claims process. He made sure we were reimbursed for all the items stolen from our home. Duncan Insurance Services has earned a client for life - thank you for being there when we needed you most!

Patricia D.

David handles both my auto and home policies and has helped with claims for both. He found me the best rates possible that met my family’s needs and has delivered superior customer service. It’s reassuring to know that I have some one I can count on when I have questions or concerns I need addressed. I’m a client for life and have referred many friends and family to him, all of whom share the same opinion.

Christian P.