Diablo Auto Specialists provides repair, maintenance and diagnostic services for all types of vehicles at its Walnut Creek facility. The company utilizes a variety of stateof- the-art equipment to handle everything from factory scheduled maintenance, tune-ups and oil changes to engine replacements, air conditioning service and brake repair. It also offers discounted rates on Enterprise rental cars to clients who need additional transportation.
Owner Tim Stussi has been working in the auto industry for more than 30 years—prior to purchasing Diablo Auto Specialists with his wife, Cathy, he held various sales and management positions at parts importers and warehouse distribution firms. Mr. Stussi says his company’s success is due to a combination of his customer service experience and his staff ’s expansive industry knowledge. “We love interacting with people and take great pride in what we do, and that’s why our customers return and refer us to others.”
Diablo Auto Specialists emphasizes the importance of ongoing education for its technicians, all of whom are ASE-certified and specially trained to handle model-specific repairs. “The vehicles we service range from brand new to 30 and 40 years old, so it’s important for us to keep up-to-date on our education and diagnostic skills,” explains Mr. Stussi. “Our technicians are true experts; their primary goal is to service our customers’ vehicles as efficiently as possible.”
“We believe in treating our customers fairly, honestly and with a high degree of integrity. We communicate effectively throughout every step of the repair process, which allows us to provide highly reliable service and educate each customer about the proper ways to maintain their vehicle.”
Serving Contra Costa and Alameda counties including Richmond, Concord, Walnut Creek, Fremont, Oakland and Berkeley.Contra Costa and Alameda Counties
Factory Scheduled Maintenance
Engine Repair and Replacement
Engine Performance Check
Computer Diagnostics
Air Conditioning Service & Repair
Brake Repair
Suspension Repair
Cooling Systems Repair
Power Window & Door Repair
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Know how to identify your car’s “warning sounds” to avoid potentially costly repairs.
When you hear an unusual noise coming from your car (usually a whine, creak or squeal) it’s a warning sign that its normal operating methods have changed—often for the worse. By paying close attention to these sounds, you can catch minor problems...
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"They are very trustworthy."
"I felt that I could trust their recommendations and that they weren't overcharging me.""Great attention to detail and very honest"
"I like the fact that they tell you what is wrong, but they don't push work on you. They are very responsive and call you right back if you leave a message to schedule work. They are good about constantly updating you about your service needs, so you can plan ahead.""They are very professional and trustworthy. I would highly recommend them."
"Their work ethic is great. My son also takes his car there.""I trust them."
"I trust them.""They are very reliable, and the work is timely. They are expensive, but you get quality work."
"They stand behind their work, they know me by name, and they are very personable.""They have a lot of integrity and do what they say they are going to."
"When I go there, I have confidence that they are going to take care of the car and fix the problem. They always do right by me. ""They do a very thorough and comprehensive job."
"They know me and my car. The relationship is very comfortable.""This is a shop you can trust. The prices are fair, and they are courteous."
"They got the job done.""They are very good mechanics that are honest."
"They are willing to admit if they make a mistake, and they rectify any problems immediately.""I have done business with them for over five years. I can trust them to do quality work."
"I like that my car runs great. I like the results.""They are very honest, and I have no problems taking my cars there."
"Honest estimates and quick service""They seem to be very friendly. I have used them for a long time."
"They usually fit me in on short notice.""They are very honest. They don't overcharge you."
"They got the job done.""They are good but expensive. I've used them for years."
"They know who I am and understand my car. They checked my car for free before I went on a long trip to give me peace of mind. They really care about their customers.""They are honest, and they don't do any unnecessary work."
"I trust them.""They are a Green business, and the people are pleasant to work with. I can trust them. "
"The owner Tim is knowledgeable, honest, and personable.""They are friendly and honest."
"They really work with you to schedule the work and arrange pick up and drop off service.""They are very reliable and trustworthy. They know what they are doing."
"They are very thorough and knew what they were doing.""They are informative specialists."
"They answered all my questions and volunteered useful information to me.""Go there. I have used them for decades. They are honest."
"I trust them implicitly.""He is an honest mechanic, which is hard to find."
"He told me exactly what was wrong with the car and did not try to upsell me.""They are very caring, they take good care of you, and they don't try to gouge you or sell you work you don't need. "
"I really like them. They take care of me. I can count on them keeping me up on what I need to know and what my car needs.""They always give good explanations about what work is needed and then they explain thoroughly what was actually done."
"They get it done in good time.""They are a very dependable and reliable service. You can trust them to make recommendations. I just dropped off one of my three cars today. I am having two extra items done because I trust them."
"They make recommendations for work that I trust.""Very personalized care"
"They are straightforward and dependable.""They are trustworthy, and they do a great job."
"They explained in detail what they were working on, and they showed me the bad part after the work was done.""Tim Stussi runs a great shop. They are all very personable, and they only do repairs that you need done."
"I trust them.""They are reasonable and always on time."
"Very good service""They are very reliable and honest."
"I trust them.""I've used them as long as they have been in business. They are honest, fair, and they don't overcharge."
"I can ask for advice, and they don't automatically leap to tell me that I need this or that. I trust them.""I have had very good service experiences over many years of using them."
"I like dealing with Tim.""They are very reliable and helpful."
"They are trustworthy.""They're personable, and they're very accommodating to my schedule. I feel like part of their family."
"Their friendliness and honesty""Give them a try. They really give great individual attention. "
"I felt confident after hearing the recommendations from people I know who have used them about how ethical they are. Even though I don't drive very many miles, they listened to me when I was explaining a new noise I heard. They gave me possible scenarios for what the problem might be, but they didn't automatically do the work without explaining what they found.""Tim really explains things very well. He doesn't talk down to people. He explains things in layman terms. When Tim explains what you need, you really understand what he is saying. I never feel like I'm being sold "a pig in a poke"."
"Great value and honesty""They are a "20". I can't tell you how many people I have recommended them to. They are honest, they are excellent in everything they do and how they approach your car repair, and they are personable. If you don't need work done right away, they will let you know when you might need the work so that you can plan ahead. They are very informative about the work that they are doing for you. They are excellent in all ways. "
"Their reliability""They are very thorough."
"They really take the time to explain the repairs, and after they finish the work, they show you what parts were replaced.""They are kind, and they provide very good service."
"I got good honest answers about what was wrong with my car.""Personal service and honesty"
"I like that you get to deal directly with the owner and the manager. Their response time is great.""They're trustworthy, and really know what they're doing. They fixed my car up perfectly for a recent 3,000 mile trip."
"They are extremely professional.""Their customer service is excellent. I really appreciate that they treat me like I understand what they are talking about even though I am a woman."
"They communicate really well. If the car is supposed to be ready at noon and they are running late, they will call so I don't go there and wait around. They are very conscientious and respectful of other people's time.""They're my go to shop. They really know their customers. They keep excellent records, so once you go to them, they really know your individual needs."
"I like their hospitality. I feel very comfortable there.""They're fair, and they're very respectful toward woman clients, which is unusual and rare from the auto mechanic experiences I have had. "
"Consistently good service in every way, I have used them for many years.""They're nice, honest, professional, and they communicate really well. They tell you what is happening with your car in a way that everything is understood about what needs to be done."
"I like feeling that I am in really good hands.""Tim is fantastic to work with. I like the new location. It's very spacious, and the parking is wonderful."
"Tim""I've used them for many years. I recommend them all the time. I call Tim my "car daddy" because he can fix anything."
"I trust them.""You get good quality customer service. They really take the time to troubleshoot and explain options so you can be a part of making the best choice. You're not left in the dark."
"Ryan was great to work with, and the shop has a very good atmosphere.""They are reliable and provide very thorough information about the work. "
"I like the excellence in their workmanship.""In the past I took my car elsewhere, where they had repaired and replaced major parts twice, but the overheating was still happening. When I went to Diablo Auto Specialists, they had an idea of the problem right away, and they discussed what they thought the problem might be. They were right on, and it was fixed quickly."
"They are knowledgeable, without a doubt. ""I would tell them that they are very efficient. They also provide good estimates, and they know what they are doing."
"I feel they are reliable in their diagnosis and repair everything well.""Tim is very honest, friendly, and he knows what he is doing. He tells you everything in detail."
"They found my problems and fixed them. My Camry has not had any other problems afterwards.""I have gone to them for many years, but have not used them since they moved. I would tell people to only work with Tim directly."
"Tim always listens and gives it to me straight.""They are thorough, helpful, and honest."
"Their workmanship, and their prices are competitive.""They are good, and they finish the job quickly."
"The convenience of getting in quick if I need to""They do good work, and they are honest."
"Reasonable prices""They're very honest and reasonably priced."
"Their customer service is great. Tim and Paul really took the time to walk me through every detail of the work. I really felt I was making an informed decision without any pressure.""They are thorough, and you know the work will be done right."
"I like that you deal directly with the service staff, Tim or Paul.""They are the nicest people in the world. They make you feel good about asking questions, even if you ask the same question over and over again."
"They are friendly, dependable, and they are very encouraging to those of us who don't know a lot about auto mechanic things.""You can trust them."
"They know what they're doing. They show me the repair, and I am always satisfied.""They seem like honest guys."
"The ease of making appointments""I would say that they are honest, fast, and efficient. I feel very comfortable having them take care of my car."
"I trust them.""They are reliable and make repairs fast. "
"They are very good mechanics.""I would say they are honest and provide good service."
"They are honest.""Great customer service, they communicate really well and give you updates."
"The customer service""They are very reliable and professional."
"They are nice and knowledgeable. They explain the condition of your car clearly.""They're good mechanics."
"Their communication, they call you back and give you good explanations and details on their paperwork.""They are professional and honest."
"I trust them.""I trust them."
"I like Tim. He is the best.""Talk to Tim, he's great."
"Tim really explains things, and I always feel like he is looking out for me.""They are honest and reasonable."
"The level of detail in explaining what needed to be done, they provide lots of options.""They are reliable, professional, and they provide a good value."
"They are thorough and do the work that is necessary without trying to get me to do unnecessary work.""They're very friendly and honest."
"They are trustworthy.""They do an excellent job with my two Hondas. I have used them for years."
"Their honesty and workmanship""They seem to be honest, and they do a good job."
"When I went there, they told me I had a nail in my tire and that they didn't do this kind of work, and rather than just telling me to go next door to Big O, they told me it would be cheaper to go to Costco.""Very reliable"
"They get the job done. ""I trust them, but they are on the more expensive side."
"They are honest and tell you the truth about what needs to get done, and they don't take advantage or recommend extras.""Tim is very honest and straightforward."
"I can trust what they say. They are honest.""I would recommend them, but I would say check other prices in the area."
"I like Tim. I was referred to him.""They told me exactly what was wrong with the car and fixed it."
"The cost was not too high.""They are reliable."
"They're very knowledgeable.""They are reliable, very nice, and hardworking."
"They are efficient.""Tim is very honest, and he comes across as a person who would work on your car the way they would take care of their own."
"The personal service and attention""They're a local, honest business."
"They did what they said they were going to do and did it on time.""They are very responsive to my needs. "
"They are knowledgeable about what they're doing, and they are easy to work with. ""I would say that they are straightforward, and they are pretty good at describing the work they will be doing for you."
"They always deliver on time.""I have used them for years. They are honest, and their work is good. "
"Easy to deal with, they don't talk down to me when they explain a problem or work that they do. ""I think they do a good job, but I would tell people to really research the work that is being recommended and the price quotes they give you."
"They communicated very well. They didn't do work that I did not approve in advance.""Very fair prices for quality service"
"Their overall descriptions about the work that was needed""Go there if the work you need done is not warranty work."
"The regular work they did was good.""They're a reliable, friendly service."
"They do the work on time and within the estimated price they give you.""Overall they did everything well, except they could not get my idle set correctly."
"They are very friendly.""Very good quality"
"I liked the quality of their work.""Good independent repair shop"
"Really good communication at explaining the problem and solution""The quality of their work is fine. They were very thorough. It would be cost prohibitive on a regular basis. "
"They found the problem right away and recommended something that I wasn't aware of.""I would get a second opinion."
"They were very comprehensive and detailed about the work they were doing. ""I don't have an opinion, nothing."
"They were able to do the work in one day.""I would share the experience that they are good for regular maintenance, but too expensive for repair service."
"Friendly people""Their service is reliable. They are too expensive for me, but I would tell anyone who asked that if they want quality service, they should go there."
"They were really nice, and I liked the quality environment.""Go elsewhere."
"I checked and their prices were better than other places for the same work.""I have used them in the past and have been happy, but the last experience was bad. It seemed like they were trying to get me to do repairs that weren't necessary. "
"I trust the owner."