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About Us
DHCC | Driven To Serve You

Diamond Hills Collision Center

Our company was founded in 2010 by two owners with a strong history in the collision industry. One brought his business acumen, experience in collision center management, and far reaching vision. The other is a technical expert who is a frequent sight at Buttonwillow Raceway where he continues to push his limits. Together, they assembled a team of professionals with a diverse background in automotive repair, automotive paint, collision expertise, and management. Utilizing the latest equipment, our OEM trained technicians are ready to repair your vehicle beyond factory standards. With three locations and over 80,000 square feet of production space, we look forward to serving you.

MISSION STATEMENT

In an ever evolving world, Diamond Hills Collision Center looks to blend the past and the future. Willing to explore options outside of the traditional collision industry norm, the company is committed to delivering an unparalleled customer and repair experience – virtually and physically. Yet, we are also dedicated to maintaining the familial feel, care, and social responsibility of days gone by. Diamond Hills Collision Center is unwavering in our mission to not only repair your vehicle, but treat you as family.

OUR VISION

To innovate and evolve the collision industry while providing exemplary service, quality of work, and peace of mind.

WHAT SETS US APART

Our goal is not simply to earn your business. Interaction with the local community, educating others, and making connections are what last. We are more than happy to share our knowledge, expertise, and professional opinions with our customers. Too often, we don’t have a minute to stop, think, and breathe. This is especially true when you’ve been involved in an automotive accident. Let us help you bear the load. To us, family and friends are what are most important in this world. We want to extend that level of care and compassion to our customers, as well.

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Happy Customers

 

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Vehicles Repaired

As of Oct. 2020
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Ratings

 

Our Staff

Diamond Bar

Jenny Duong – Office Manager

Jenny has been with the company since it was founded and she wouldn’t have it any other way.  Everyone at the office is her son or daughter and we’re all part of her home away from home.

Kirk Wang – Estimator

Experience: 6 Years
Languages: Taiwanese, Mandarin, English

If Kirk isn’t at work, he is exercising or wrenching on his car.  He loves to stay healthy, lift weights, and keep a positive mindset.  He looks forward to meeting you!

Michael Mun – Estimator

Experience: 2 Years
Languages: Korean, English

Auto restoration has always been an interest of Michael’s and he loves seeing our staff bring cars back to life.  If he’s not in the office, he’s off fishing and golfing.  He likes to keep things relaxed and stress free for all his customers.

Michael Yeh – Estimator

Experience: 5 Years
Languages: Taiwanese, Mandarin, English

Michael has always loved cars and working at DHCC has given him a great chance to appreciate all makes and models.  He enjoys meeting new people and he can’t wait to help you out with all your collision needs.

Tony Lien – Estimator

Experience: 18 Years
Languages: Taiwanese, Mandarin, English

Traveling is Tony’s favorite pastime and he especially loves returning home to Taiwan to visit family and friends.  He’ll fight for your car to be repaired beyond OE standards and make sure it’s done in a timely manner.

William Suen – Estimator

Experience: 6 Years
Languages: Cantonese, English

If you need a recommendation for somewhere to eat, William is your estimator.  He’s a huge foodie and car enthusiast with a modified Subaru WRX.  Come on in and he’ll talk food and cars with you all day.

Allen Perea – Parts Manager

Procuring the correct parts in a timely manner is an often overlooked portion of the repair process; yet, it is clearly essential.  The unsung heroes at Diamond Hills are overseen by Allen, an industry veteran since 2005.  His familiarity with hundreds of parts across various OEM’s never ceases to amaze.  It was a combination of his knowledge, skills, and personality that attracted the attention of Diamond Hills.  Efficient and effective when he needs to be, Allen also knows how to motivate and support his team and the company.  This is probably a reflection of his time as a husband and father to four daughters, all of whom he loves taking to Dodgers and Clippers games.  The man is also a BBQ master and loves to relax with close friends during the weekends.

Robert Conde – Assistant Production Manager

Family, loyalty, and altruism sum up Robert’s personality and character.  He started out at the ground level with Diamond Hills and climbed the ladder through work ethic, experience, and outstanding performance.  From washing cars to running the entire production floor, Robert has managed to master each craft and guide those that came after him.  Currently, he is Dieu’s right hand man and oversees the micro while Dieu is left to focus on the macro.  The man never hesitates to jump in and help in any way at any position.  And, in a continuing trend with the rest of the company, Robert places great emphasis on spending time with his wife and children.  The family can frequently be found at the park or beach.  There’s always music playing, delicious BBQ with plenty of food, and nothing but good vibes.

Our Staff

Orange

Laura Sandoval – Assistant Office Supervisor

A friendly face to everyone, Laura loves meeting people and working with her extended family here at Diamond Hills Collision Center.  Currently, she is working part-time while she handles the full-time job of being a wife and mother – the hardest job of all!

David Tzeng – Estimator

Experience: 18 Years
Languages:  Mandarin, English

David is a Cal State Long Beach graduate with seven years of experience as an insurance adjuster and over fifteen years of experience in the auto body industry. He enjoys roaming through different parts of the city, trying to hone his photography skills. Part of that roaming involves trying different foods and talking to different people from all walks of life.  Currently, he is trying to restore an 1989 VW GTI that I’ve had since college

Peng Cao – Office Manager

A certified master technician for Porsche, BMW, Tesla, and countless others, Peng has experience on both sides of the fence.  Starting off his career on the insurance side has given him crucial insight into how insurance carriers operate.  The transition into the collision industry was natural for him and he is one of the most experienced and detailed estimators we have seen.  His innate passion for automobiles doesn’t hurt, either.  In his spare time, Peng will sit back, relax, and crack open a technical manual or repair guide on the latest vehicles.  He is always looking to expand his knowledge of repair procedures and techniques.  With all of his hands-on experience, technical comprehension, and background in insurance, he is a perfect candidate to lead our Orange location.

Marco Espinoza – Orange Production Manager

With over two decades of production experience, Marco came to Diamond Hills with a hunger and drive to apply what he knew in a new and evolving setting.  He’s certified in a variety of OEM’s, such as: BMW, Mercedes, Audi, and Tesla.  A strong drive and passion for customer service has made him a perfect fit for the company and we have been thrilled to have him.  An avid soccer player, Marco passes his love of the sport on to his children during his days off.  We are lucky to have him and are excited to grow our Orange location with his expertise.

Jay Tang – Assistant Production Manager

Jay is an automotive enthusiast of all walks of life. Whether it be domestic, import, lifted, or lowered, Jay can appreciate it all. He’s not limited to four wheels and is also passionate about motorcycles. Outside of the industry, he is a tech enthusiast who is always looking at the newest developments and what is on the cutting edge.

Ivan Tong – Social Media / Marketing Assistant

An entrepreneur from a young age, Ivan is no stranger to business and marketing.  He started his first business in middle school before following up with another two in high school.  With an educational background in International Business and Marketing, he is a networking guru that can talk to anyone.  He’s been with the company for over five years and understands all the roles of the company, making him a great addition to the marketing team.

Our Staff

Executives

Carol Sham – Marketing Director

Active and outgoing, Carol is never seen without a smile on her face.  With a penchant for meeting new people and winning them over, she is a perfect fit as our marketing director.  Her personality shines through in spades and has been a welcome addition to the company..  Experienced in both traditional and digital marketing, Carol understands both are critical when catering to the ever demanding needs of an evolving market.  During her days away from the office, she loves going to different places and experiencing new things.  It doesn’t matter if it is in her neighborhood, across the country or across the world.  With an adventurous spirit, Carol travels everywhere with her two dogs while simultaneously spoiling them with homemade food and treats.

Duwey Thi – Director of Operations

Possessing a nearly encyclopedic understanding of how to repair any vehicle is Dieu’s claim to fame.  The man is a treasure trove of answers for anything repair and paint related.  His role as the production manager for Diamond Hills Collision could not be more tailor made.  Everyone from the body techs, to the parts department, painters, and the wash and detail team report to him.  The company is incredibly lucky to have someone who not only manages, but also mentors.  Several of our technicians started off as an assistant to Dieu who carefully cultivated, encouraged, and passed on his knowledge to them.  Now, those same technicians are being certified by OEM’s such as Porsche.  Kindhearted and genuinely pleasant to be around, Dieu is also a strong family man and spends most of his days off with them.

Jon Chou – Director of Business Development

Brought in for his corporate management and development skill set, Jon oversees Diamond Hill’s growth and expansion.  Having worked for various firms across the country, he brings a unique perspective to a traditionally stagnant and older industry.  Though much of his work is centered around long-term projects, one of Jon’s main tasks is to ensure the company is headed in the right direction.  He makes certain that the management team is on the same page, that the owners’ interests and goals are being met, and that the business is healthy.  When he isn’t running meetings or attending them, Jon can be found wrenching on his car or going for a run.  Skydiving, tracking, and anything else that gets his blood pumping are favorite activities.  When he wants to relax, he is happy to open a book or cook a gourmet meal.  And, wherever he may be, his Shiba Inu won’t be far behind.

Rey Martinez – Auditor/Estimator Manager

With decades of experience in the industry, Rey confidently leads the company’s team of estimators and their assistants at all our locations.  His wealth of knowledge regarding proper repair procedures, estimates, and negotiating with insurance is invaluable.  That same familiarity with the industry lends him to be a perfect candidate to coordinate our OEM certifications and to ensure that we exceed any requirements and expectations set forth by our valued partners.  When he isn’t busy at the office, Rey relaxes by spending time with his daughters and taking them fishing or camping.  He’s also a master griller who graciously dives in and cooks whenever we have a company function.  You haven’t had barbeque until you’ve tried Rey’s.

Wade Xu – IT/Controller

Coming from a strong financial background in banking, Wade handles the company’s finances and expenditures.  Whether we are looking at purchasing new equipment or opening a new location, he provides the answers as to whether or not it is economically feasible.  In addition, Wade pulls double duty as the IT lead.  He is the first call when something isn’t working as intended.  And, for those reading this, please check to make sure it’s plugged in first.  It’ll save him a lot of trouble.  Though the majority of his work is behind the scenes, his impact is felt at every level of the company.  On his off hours you can find him underneath his E46 M3 track car, playing first person shooters online, or relaxing with friends and family.

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