I needed a new front and rear bumper due to accident. Repairs were made in a very reasonable time period and I couldn't have been happier with the work completed. They were very professional and in fact saved me some money by repairing the rear bumper rather than completely replacing it. Overall price was very reasonable given repairs needed. Andrew Castillo, kept me fully informed along the way and they completed the work a couple of days early. Would highly recommend Diamond Hills Collision Center in Walnut for any automotive repairs. Very very satisfied customer! Dave L. read more

Really disappointed with this shop. I had plenty of other body shops I could have gone to, but I chose this one because of the good reviews. Unfortunately, the quality of the work did not match the Yelp reviews. The car was returned with multiple visible problems. These were not tiny "if you look closely" imperfections. The finished work simply did NOT look professional, and I honestly couldn't believe the car was handed back to me like that. What made the experience worse was Tony. He was very nice in the beginning, but once I brought up the problems and asked him to address them, his attitude completely changed. He became impatient, dismissive, and started making excuses instead of trying to make things right. Mistakes happen. What should NOT happen is returning poor-quality work to a customer and then giving them attitude for pointing it out. I really wanted to have a good experience here, especially after seeing all the positive reviews, but that was not the case. I would not recommend this shop. read more

This collision center and location was recommended by our insurance based on proximity to where we live. It got good reviews and is Honda certified so we went with this option. To begin with the estimate seemed incredibly high for what the damages were. Since it was the place our insurance recommended, we figured that they must be good and fair, so we trusted their estimate. At this point it should be said that we were not at fault in the accident we were involved in, so we knew we were only going to have to pay the deductible and would get that back eventually, so we stuck with Diamond Hills. Unfortunately, our experience did not go well. 1- Most communication regarding price estimates, confirmation of work to be done or timeframes for completion were initiated by us. Despite being told our rep would contact us for approval to start repairs and keep us informed throughout the process, on most occasions we had to call him first. 2 - When we were called and notified that our vehicle was ready for pick-up, later that same day they discovered they had broken the tail light during reconstruction of the car. We are appreciative that they discovered it before we did and they fixed it before returning the vehicle to us, but it did it take an extra day to get it back. 3 - After repairs were complete and during the final assessment of repairs, we noticed a small spot that was missed when they painted the bumper. We were told they would fix it, but when we came back the next day they had tried to only touch up that one spot and crated a more noticeable smudge instead. Even a tech admitted to my husband he would not want a smudge like it on his car, so they needed to repaint it again. 4 - They needed to remove the windshield and the windshield sensor system during repairs, but they did not put the sensor system back together properly so it rattled and might have popped off when driving if we hadn't noticed it first. They did fix it after we pointed it out to them. 5 - This one is the one that made me finally decide to follow through with a review. We'd had the car back for several weeks and while driving on the freeway, my husband went to pull down the visor to block the sun and the visor completely pulled off and dangled from the socket in the vehicle's roof lining. He had to drive toward the sun, one handed-to prevent the dangling visor from blocking his view- back the collision center to get it fixed immediately. They did apologize and fixed it promptly, which we appreciate. Our experience here was not one that would have us recommend this location to anyone. We are not confident that other issues won't come up, as little but significant things keep happening. We have needed collision repairs in the past, enough to know this is not a typical experience. We regret not driving a little further to take it to a place we've used previously for better results. Overall, the body repairs to our car were completed well and the car looks good, but it feels like they either rush or are careless about some details unrelated to body work that for us ended up with mistakes that could have potentially compromised safety. I will say, I feel the other positive reviews may be due to a "rewards" system they push when you drop off your car and again when paying, that offers you money back for certain amounts of money spent. I can see how that could be enticing, but I couldn't understand how it benefited them as a business. Since we were going through our insurance, I declined to participate and the woman seemed a little irritated that I did. In the future if we need collision repairs again, we will be going elsewhere. read more

I really wish we had gone somewhere else. What should have been a straightforward cosmetic repair turned into weeks of frustration, repeated workmanship problems, additional expenses, and an extremely disappointing experience dealing with Tony. Our car had minor parking-lot damage, and we agreed to have the rear bumper replaced. Tony told us it would take no more than a week. When we got the car back, the bumper was badly misaligned and didn't sit flush with the adjacent panel. You could immediately see and feel the raised edge. The paint was also uneven and had heavy orange peel texture. This was especially frustrating because Tony repeatedly talked about how much better their quality was compared with other shops. Based on the work we received, I completely disagree. When I brought up the issues, Tony became defensive and argued that other areas of our car weren't perfectly aligned from the manufacturer either. That had nothing to do with the bumper his shop had just repaired. After going back and forth, he agreed to adjust it and told me to bring the car back the next day. I ended up waiting there for hours with two babies because we had already returned our rental car and had no other transportation. After the adjustment, the alignment was somewhat better, but there was now a strip of MISSING PAINT where the bumper met the adjacent panel. They had damaged the paint while removing the bumper and never mentioned it before handing the car back. It felt like they were hoping I wouldn't notice. So the car had to go back AGAIN. We had to rent another car, remove and reinstall two baby car seats, and pay for the rental completely out of pocket. I specifically told Tony we needed the car back as soon as possible, and he said the correction should take only 1-2 days. Those 1-2 days turned into almost TWO WEEKS. Our rental was around $85 a day, and by the time we finally got our car back, we had spent nearly $900 extra waiting for them to correct problems with their own work. It made no sense that fixing the alignment and paint took longer than the original bumper replacement. The completion date kept getting pushed back. After about a week, I called Tony because I needed an actual timeline. He repeatedly said he didn't know and emphasized that the delays had nothing to do with him. Eventually, he called back and said it would take another three days. When I asked how an adjustment and paint correction could take longer than the original repair, he didn't answer. Instead, he said, "I'm calling just to let you know!" and abruptly hung up. Three days later, they still needed a few MORE days. When we finally got the car back, the alignment was thankfully better, but there were once again new problems: another area of the bumper had a deep scratch that couldn't simply be polished out, and there was visible paint overspray around the Tesla charging-port opening, suggesting the area had not been properly masked. I understand that mistakes happen. If there had been one issue and they simply fixed it, I wouldn't be writing this review. But this was a repeated pattern: poor alignment and paint quality, damage caused during their own correction, no disclosure of that damage, another extended delay, nearly $900 in additional rental costs, and then new scratches and overspray. What made the experience even worse was Tony's attitude whenever I tried to address legitimate issues with work I had paid for. Between the workmanship problems, delays, unexpected expenses, and poor communication, I completely lost confidence in this shop. I would never bring another vehicle here and cannot recommend them. read more

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Extremely disappointed with this place, especially with Tony. I would absolutely not recommend them. My car had very minor parking-lot damage--the car wasn't even moving. There was a scratch on the rear bumper and some paint damage to the panel next to it. I got multiple estimates, and Tony's original quote wasn't the lowest. He offered to price match a competitor and even go a little lower, which is why I ended up giving him the business. Once my car was already there and the bumper was removed, Tony suddenly said additional work was needed and raised the price. I asked him to show me exactly what justified the increase. He sent me pictures with the bumper removed, but I honestly couldn't see anything that explained the additional work. I even asked him to just mark the pictures and show me exactly what needed more work, and he couldn't. The new price conveniently ended up right around his original quote BEFORE the "price match." At that point my car was already taken apart, so I felt stuck and just told him to proceed. The whole thing felt like a bait-and-switch--give me a lower price to get the car into the shop, then raise it once everything is taken apart and it's much harder for me to go somewhere else. And after paying more, the work wasn't even good. When I got the car back, the repaired panels didn't sit flush. The difference was about the thickness of three credit cards stacked together. You could see it immediately and feel a huge step just by running your hand across it. The paint also had noticeable orange peel, and I found a small pit/blemish in the freshly painted surface. What really bothered me was Tony's attitude when I pointed these things out. He was friendly and accommodating when he was trying to get my business, but once he had my money and I started questioning the workmanship, it felt like I was dealing with a completely different person. He became defensive, argumentative, and honestly pretty rude. Instead of acknowledging the obvious issues with the repair, he started pointing out other areas of my car that weren't perfectly aligned, like somehow that made the area his shop had just repaired acceptable. The interaction that really showed me his attitude was when he finally agreed to adjust it. He clearly wasn't happy about having to fix the work. He turned around, started walking away and just said, "Bring it back tomorrow." I asked him what time I should bring it back and how long the repair would take, and he literally kept walking away while I was talking to him without even answering me. I found that incredibly disrespectful, especially after I had already paid them more than the price I originally agreed to. That was probably the most frustrating part of the whole experience. Tony was incredibly nice when he wanted me to choose his shop, but once there was a problem with the work, that friendliness disappeared very quickly. After the way I was treated, his friendliness in the beginning honestly just felt insincere. Then the correction that we were told would take only 1-2 days ended up taking almost two weeks. Somehow correcting the work took longer than the original repair itself. We needed a car during that time and ended up spending almost $900 extra on a rental. After waiting all that time, we STILL found more workmanship issues when we got the car back. I went with this shop because of the price Tony offered me. In the end I paid more anyway, had to bring the car back multiple times, spent almost $900 extra on a rental, and got a completely different attitude when I questioned the quality of the work. After everything that happened, I completely lost trust in this shop. I genuinely don't understand how this place has so many positive reviews because my experience was nothing like that. I would never bring another car here. read more

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Helpful, efficient customer service! My Tesla was hit and they took excellent care of repairing my vehicle. Helped me coordinate my rental pick up and drop off with Enterprise. Estimated time for repairs was spot on and communication throughout was excellent! Would recommend! read more

This used to be a great body shop, but that is no longer the case under the new management. My car was there for a month, and I was told the repairs were complete and had passed quality control. However, when I picked it up, I found multiple issues, including a paint color mismatch, poor workmanship, paint nibs throughout the finish, and areas around the edges that were missing clear coat. It felt like they billed the insurance company premium rates while delivering the lowest-quality work possible. When I brought the car back, they repainted it three times and still couldn't get the color to match. They finally repainted it a fourth time, and the entire correction process took another month. Overall, this was a very frustrating experience, and I will never return to this shop again. read more

Check in on Yelp to receive a complementary gift. Someone hit my car and I would choose this place to fix it from now on. Tony helped me twice. Once last year and this time. Tony is always on it and updating me about my car and tells me exactly what I need to do. Tesla approved this place for collision center. Every part that needed fixing was OEM parts. My car looked brand new both times it had an accident. Tony would clean it before giving it back to me. Tony knows English and Mandarin. Really recommend everyone to use Tony for their car. He is easy to get in contact with. Highly recommend this collision center! They do all kinds of brand cars. You're in good hands when you come here. read more

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The service was extremely poor. The windshield repair was done very badly and they damaged my car's dashboard. Now, when it rains, water leaks into the car. Manager Jim's service attitude was also very unprofessional. I am very disappointed and expect this issue to be fixed as soon as possible. read more

My car was hit in a parking lot, causing damage to the left side of my left bumper. I went to get an estimate for the damage on my car at 3 different places before coming to Diamond Hills Collision Center. I decided to proceed with Diamond Hills because they provided me a reasonable price and a great turnaround time. They were also willing to work around my busy work schedule. I just picked up my car and the bumper looks completely brand new! They estimated my car repair to be complete within 5 business days but they got it done a day earlier! I highly recommend Diamond Hills Collision! They are located near an Enterprise, which provides free pick ups and drop offs at Diamond Hills, which was very convenient since I needed a rental car while my car was being repaired. Most importantly, I would come back here because of their great staff! Tony was very communicative and provided me updates on my car throughout the week. Connie was very kind and friendly and helped me coordinate my Enterprise reservation. I would definitely come back here next time for my future repair needs! read more

After my car accident, I was overwhelmed and unsure of what to do--but Tony took care of everything from start to finish. He handled all the communication with the insurance company, kept me updated every step of the way, and went the extra mile to make sure my car got original parts, even though the insurance only covered used ones. That kind of dedication and care is rare. What could have been a stressful and scary situation turned out to be completely hassle-free thanks to Tony. I can't recommend him enough. If I ever need help again, I wouldn't think twice about coming back. read more

Diamond Hills Collision Center - Before - Body Shops Near Me - Diamond Bar, California

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Great service! Wow the car looks brand new! Please look for Tony and Jenny and they will take care of you. Well communicated, professional services, highly recommended! read more

I want to give a big thank you to Tony Lien for his incredible service. While he wasn't the one directly repairing the car, he managed the process from start to finish with great care and attention. He kept me updated on every step, and even though my Tesla Model Y was almost beyond hope, Tony made sure everything was handled perfectly. Thanks to his dedication, my car was repaired exceptionally well. I've been driving it for months now, and it's running great. I truly appreciate his professionalism and care! read more

found this place from the Tesla website. it's so close to my house that I could walk there. Kaeden was very friendly and clear in explaining the whole process of dealing with the insurance company. kept me up to date on the status. they handled everything with the insurance directly, we only had to pay our deductible at pickup. very easy. Kaeden was on vacation when we picked up the car, but he'd handed the case to Kevin, who was also very friendly and answered all our questions and helped touched up some spots that we didn't mention beforehand. the car looked brand new and drives as great. the receptionists were also very friendly as well. hope you don't need it but we highly recommend this place. read more

The only shop I trust to repair my car. Thorough communication with Jenny and Javier throughout the whole process. My car came out fantastic as I am pretty OCD with workmanship. Always will recommend this place. read more

Diamond Hills Collision Center - Paint sun damaged - Body Shops Near Me - Diamond Bar, California

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Horrible customer service their receptionist has. Super impatient and rude and shouldn't be servicing people trying to provide business that pays her paycheck. read more

My friend got hit by a trash can on freeway and her insurance company sent her to this place. Kirk and Jenny are so helpful. They made everything clear and reasonable. I really appreciate it and recommend them to everyone read more

Shout-out to Tony Lien and his team. Tony is very professional, responsive, friendly, easy to work with, very diligent and I so appreciate him for sending me pictures and car updates. My car took a few weeks to repair, as expected and Tony communicated. Although almost whole passenger side of my car were damaged, it came back just like brand new one. They did a great job. Thank you for giving my vehicle a new life. I definitely recommend Diamond Hills and ask for Tony! read more

All of my car repairs are done here. Great work on the cars and always easy to deal with.

Great place to go! Jenny, Kaden, and Carlos are all extremely helpful, knowledgeable, and welcoming. 10/10 recommend!

Even for small work - these guys are great. Hey, if they are great with small work - there is always an expectation that they can deliver the same with the bigger stuff. So, the door of the SUV is misaligned. Cause is unknown but could be hit from the outside, or the door hit something when opening from the inside. My wife brought the SUV - and we got two quotations. One for the quick fix and the other just in case the quick fix didn't work out (which is to a tune of 4x the former simply because a paint job will be required). My wife sends me the quote and I call Diamond Hills. The call was professionally taken by the receptionist and I was directed to William. A very good conversation - he explains to me the assessment and the reasoning behind the two quotations (which now made sense). He then gives me his personal take if it were his vehicle, albeit, the final decision would be mine. After that short conversation - I was convinced. I had my wife bring back the SUV for repairs. It was beautifully done. Thank you Diamond Hills for a professional team and does quality service. Thank you William. I am a FAN! read more

Diamond Hills Collision Center - Body Shops Near Me - Diamond Bar, California

Great experience with Tony! He may be busy at work, but he responds to messages quickly, and thanks to him, there were zero issues with my Tesla insurance while fixing my Model X. Highly recommend! read more

Kaden was very professional and friendly. I was originally worried that the paint job wouldn't 100% match the factory paint but they did a very excellent job making sure the colors matched. I'm very happy with the outcome. Kaden even showed me the backstage where he clearly explained what work was going to be done with the car. I got to meet the people working on my car as well. read more

Completely recommend this place, when I got into my accident I was super nervous but Tony Lien was extremely professional and helpful with the whole process. From the beginning, he was very quick and thorough with an evaluation of my car and kept me updated with the progress of my car as it was being fixed. Great place to go to get great service, helpful people, and be confident with your car! read more

This is my second time using them to repair my Tesla Model 3 bumper. After the work was completed my bumper looks brand new. They took time to perfect it and Kevin kept me updated as needed. I highly recommend for a Tesla. This was an insurance claim and they handled all of that really smooth! read more

Diamond Hills Collision Center - After - Body Shops Near Me - Diamond Bar, California

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Satisfied with the service provided by Tony. He was very helpful and always keeping me updated. Thank you. Recommend!

Thank you Jenny and Tony for the amazing service. They were very nice and communicated to me ever step of the way.

I wish I could do no stars. This place is unprofessional, the management are inconsiderate of your time. They lack respect and attentiveness. Felt unwelcome by Alfredo specifically. Nonetheless the organization to this place. read more

I went to fix my model 3, Jenny was delightful and so nice. Kaden is awesome, when there was a lack of communication with an adjuster I had. He made a few phone calls and handled everything. Would definitely recommend them. read more

12/08/22 Day 10 seems there is no way to get parts from warehouse in a timely manner. Thought I was just having some minor damage repaired. Turns out they need to order more parts than expected. The right front fender needed to be replaced as well. I knew there was a ding in it but didn't expect them to fix it. Great to know. 12/09/22 day 11 good news all parts will be delivered by 12/18/22. 12/12/22 day 14 still waiting for fender and headlight. 12/13/22 day 15 still waiting. 12/14/22 day 16 still waiting. 12/15/22 day 17 still waiting. 12/16/22 still waiting. William said should be ready on 12/21/22. 12/13/22 day 1 read more

Diamond Hills Collision Center - Repair agreement - Body Shops Near Me - Diamond Bar, California

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I brought my cars to this place twice. The first time was the model 3 to get my bumper fixed due to a rear-end collision. It took them about 35 days to complete the repairs, half of which because my adjustor did not respond in time. However, DHCC failed to follow up with me on the repair status, and I found out when I called them. I let it slide, as I believe it was the adjustor from the insurance was the root cause. I brought my model Y for a major door ding estimate the second time. I got the vehicle in on Tuesday (12/12) and followed up with the rep (Kaeden Hirata) on Thursday & Friday (12/14 & 12/15), and he has yet to respond/reply to my phone/texts. I called back to speak with the manager (Jesse), but one rep refused to transfer to the manager; he stated the manager was in the meeting (the same excuse given to me previously). As of today, no call/follow-up. I'm going to take my business elsewhere. BEWARE and EXPECT no communication if you want to bring your vehicle here for service/repair. read more

We had to take our vehicle in for repairs due to a hit and run incident. Tony was our estimator and point of contact between my insurance adjuster/appraiser and me. He kept us apprised on repairs throughout the whole process, made things extremely easy and we didn't have to guess in when our vehicle would be ready for pick up. My insurance adjuster made things a bit more complicated than it should have been with payment to the shop. Both Tony and Jenny (front desk) were very understanding with the issue that my adjuster caused and was very accommodating to us. The end result, we got our vehicle back timely and no other issues. Highly recommend! Great customer service and communication! read more

Kirk was very responsive and professional throughout the whole experience. Car turned out great and he got original parts without the upprice. Thank you! read more

My car sustained considerable damage from road debris being kicked up into my car while driving home from Las Vegas on I-15. I took my car here to get an estimate and for repairs. Unfortunately, my insurance company opted to declare the car a total loss instead of authorizing the repair of the car. Michael Mun was the person assigned to me. He was very professional and kept me in the loop during the entire process via phone calls and emails. He was able to put me in a loaner car while he was dealing with the insurance company. If I'm ever needing any car repairs in the future, I definitely wouldn't mind working with him again. Their lobby and waiting area was very modern and kept very clean. read more

Diamond Hills Collision Center - Body Shops Near Me - Diamond Bar, California

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My car looks like new! You don't want to become a frequent customer of a body repair shop, but Diamond Hills makes it a top notch experience if you do. I brought my car here several years ago when I was in an accident and they repaired it to near perfect standards. When I needed body work done again, I knew exactly where to take my Jeep- Diamond Hills Collision Center. Once again, my car looks like new and the customer service was impeccable. Even with a back ordered part, they committed to getting the job done as quickly as possible. Thank you Kirk and Jenny! read more

Outstanding service! Receptionist was friendly and professional and the office was welcoming.

I recently had my car repaired by Diamond hills Collision Center. Fortunately, this was my first accident so i do not have a lot of experience dealing with repair shops .I would highly recommend Diamond Hill if you find yourself needing their service. Carlos was so kind and patient all through the process. They did excellent work . You will be glad you chose them to put your vehicle back in top condition. read more

Great Work they did on my car and left it better than brand new!! Thank you Robert Fernandez and Carlos Lara for leaving my car spotless and flawless I recommend coming to this place if anything is needed with your car! 10/10 read more

Diamond Hills Collision Center - Body Shops Near Me - Diamond Bar, California

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I hate giving bad reviews but be aware. If you give a quoted price you should stick to it or let your customers know if it'll be increased while or ahead of time and not wait until you fix the car then say it's an EXTRA $5000+ to get your car back! Like from $14k to fix to end up paying almost 20k... on the day to pick up the car, it would have just been a total loss. That's just unreasonable and unethical. Would never recommend this place just with this type of ethic. read more

this review is long overdue, i come to this place few times already , the front desk girl Jenny is top notch and knowledgeable. no matter how busy she is , she always have smile in her face . and she always ready to help when i have concern via phone or in person . ( especially with the stress and anxiety of the accident Jenny tried to ease your mind with the process ) kaeden , the service person is professional and guide me thru the process read more