Amazing mechanic and an amazing human being. He's been mechanic mechanic for 35 years!

Owner Bill is the best. A no-nonsense guy who will go out of his way to service your auto like it was his own, whether you need major work or just an oil change. If there is a viable option to use a good aftermarket or reconditioned part that he can stand behind, he will offer that to you instead of just getting the most expensive part from the dealer. My 2013 Sonata Hybrid has 190,000 miles on it now, the last 90,000 maintained by Bill, and it still runs like new. 'nuff said. read more

Bill at Nisstech has been doing fantastic work on my cars for years. He is great to work with, he's honest, fair and trustworthy. Highly recommend. read more

I've been with Bill since 2001. Best mechanic ever. I know the work is always superior at reasonable prices. Always straight forward and honest with repairs read more

Bill helped me out with my diff bushing. He was very straight to the point and honest which was helpful. Also gave me some tips on what to look out for. read more

I called yesterday morning to schedule an oil change and to have my brakes checked out due to a squeaking noise. The oil change was done within a half hour of dropping off the car and Bill called to let me know that I did indeed need front brakes but the back brakes, though squeaky, have lots of life left. He had the front brakes replaced within two hours and charged a very fair price. We have taken cars to Nisstech on and off throughout the years, but also going to quick lube places or the dealership instead out of habit. However, yesterday's experience reminded me that Bill is the best -- he does what is needed to maintain the vehicle but always with honesty and cost consideration. He could have replaced all the brakes and I wouldn't have questioned it -- but I so appreciate his honesty and doing what is needed as it's needed, saving me money and time. We will definitely take our cars here exclusively from here on out. read more

Been going to Bill for over 20+ years! Excellent and honest service! Highly trust and recommend!

Bill is the absolute best. I have been going to him with all mine and my families vehicles. He is the only mechanic I would ever trust with my cars. Everyone in his shop is so knowledgeable and actually amazing at there job! They have always been professional, courteous, timely, and well priced. read more

5 STARS-for a con artist master mechanic....3 times BILL has had my YELP review removed...! WHY..? What happen too free speech? I spent 30k over 16 years here like a fool trying to save a BUCK. Replaced my OEM rack n pinon steering which failed 100 miles later on hwy 37. slamming me up against the right curb only because I was under 5 mph- if I was going 55 mph I would of launched up over the right curb 40 feet up in the air and plunged into a ditch of water - I could of been put in a BODY BAG..!!!! ASE mechanics..I think NOT Their OEM New engine constantly leaked a quart of oil every week. 5 catalytic converters at 1300 bucks a piece later. For 2 years engine check light was on w a misfire code which they could not fix, after several thousands of dollars went down the toilet. Their OEM New transmission crapped out one block from the shop. Then I tossed in the white towel and got rid of a RENAULT NISSAN MONEY PIT and Niss-HELL. DO U have a WIFE and KIDS...? Take it to the dealership, you get what you pay for; however, Bill constantly calls them the stealer-ship, because he wants their business from customers trying to save a buck, like I was. I pay more but I get: a clean bathroom, coffee,water bottles, pop corn, TV, cups, kid play area, clean waiting room, auxiliary staff to assist you, shuttle service, $35.00 a day new rental cars along with ASE mechanics. If traffic was NOT stop n Go under 5 m/h I would of been DEAD, because of ignorant non-ASE grease monkeys that have no clue about auto mechanics that Bill has hired because he is back log 2 weeks for customers looking for a " meal deal"...! GO SAVE A BUCK then with a master con artist..as for me I actually saved money in the long run and bought a 2019 ROUSH 5.0 Mustang GT made in the good old USA. KAGA UR FIRED BILLY BOY read more

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Bill is my go to man, for every never ending problem with my money pit Audi. he always gets me in right away, is knowledgeable and reliable. he always breaks down the exact problems with all these intricate parts for me, and although it's way over my head, I appreciate all his efforts! Thanks Bill! you are the best! read more

As usual Bill is by far the best auto mechanic that i know. he did a brake change for me the same day and i was very very happy. Keep up the good work Bill your amazing! read more

We called at 8:30 am to see if they could look at our Maxima that was running poorly. They said to come in that same morning (!), they found the issue and fixed it within a few hours. We were back on the road by early afternoon. Price was very reasonable. We were so impressed! Car has been running great for a few weeks now. Nisstech will definitely be our go-to repair shop from now on! read more

The best experience in automotive repair possible. Bill and his team are not only funny, clever, and wonderful conversationalists, but great mechanics. Go there, you won't be sorry! read more

Bill is reliable, honest and trustworthy of my business. He shows me exactly what is going on and in the end shows me the faulty parts. He's redone brakes, fixed my air conditioning and electrical stuff. I highly recommend Nisstech! read more

As a single mom, I've always been anxous about getting my car fixed. How much extra was I paying because I don't know much about cars and I'm a woman. I don't worry about that at Nisstech. I know that Bill is giving me the real scoop and I have NO worries that I'm being taken for a ride. My now adult children go to him all the time and I know they're in the very best hands. The whole family, even the 15 year old driver to be, will keep coming back. read more

I just want to say that Alex from Nisstech was SUPER helpful in diagnosing my problem in relation to my smog test for my 2012 Altima.... I will DEFINITELY recommend them to anybody looking for a place to get great service for their Nissan and/or other vehicles... Thanks so much Alex and Nisstech!! read more

Bill, the owner, has serviced our cars '05 Nissan Frontier, '14 Acura RDX, '16 Nissan Frontier) for 15 years. His service has been reliable, professional, fast & friendly for all that time. It's a relief to have someone we can call for trustworthy maintenance & repair on our vehicles. read more

Couldn't recommend Bill and Nisstech more! I've taken my car to him twice now for random replacements and always have a positive experience. He's fair, quick, and an all around nice guy. read more

I wish I could give this place 6 or 7 stars. Bill is amazing. He is so nice and friendly. I could rave about him for days. He tells you how much something is going to cost and sticks with it. He also lets you know what can be done in future. Which is great since I'm a poor college student who can't afford everything right now. The other day my check engine light was on and called him nervously. He said not to worry and bring it in on Monday. He remembered who I was and often says how he wants my Nissan Maxima haha! When I brought in my car he took care of it fast and got right back to me. He said I had an oil leak that wouldn't be worth getting fixed but I should just swing by every month and he'll put oil in. (what a sweetheart!) He also didn't charge me a dime even though he did some work on my car. I won't ever go anywhere else! read more

I won't be taking my car anywhere else! Nisstech is great. Bill is very nice, trustworthy and knows what he's doing. He charges very fair prices for the work he does, which is huge. Most mechanics/dealerships are sheisty, Nisstech is not! What I liked, is that he followed up with me after working on my car to make sure everything was running well. He doesn't try to sell you services you don't need. They even made a customer out of my mom, she usually takes her car to the dealership, but not anymore. She will now be taking it to Nisstech for any services or issues. Thanks guys, you rock! read more

I found Bill and Nisstech when I first moved to Santa Rosa a year ago and brought my car in today to see him. I drive an 04 G35x and it started smoking last week. I called in at about 10:30 to see if he could squeeze me in and he was so nice and told me he would make time! I got there and there were so many vehicles that needed to get done (at least that's what it looked like to me maybe they were done waiting for other happy customers to pick them up) but he got me in and back into my car by 2:30! Everyone there was so polite and did an amazing job. I will be bringing my car back whenever I need anything even if it is just an oil change! Thank you so much Bill and everyone at NissTech for everything today and saving me from blowing up my engine ;) read more

In a town where most Service Stations are out for the good old American dollar. If your a single female, they really take advantage. Nisstech will surprise you! Bill is amazing! He has taken care of both me and my daughter's Nissan's. He is fair, honest and always us gives the most reasonable pricing on parts and labor. I never have to return for the work he has done. I wouldn't go anywhere else to have service on my Frontier. He always asks how the family is every time we go in. We love this man! If you need service on your vehicle look no further, you won't be sorry! read more

Yep, Bill and Nisstech are all that. I recently went in, and he happened to be SICK AS A DOG! I mean, flu-like, death-warmed-over sick. He still managed to easily treat me FAR BETTER than any Infiniti or Nissan dealer or service provider ever has. That's the man. The service: Over the top. They found some rubber radiator mounting bushings that I had in my car and installed them for me (something I've been meaning to do) without me even mentioning it - no extra charge. Just one of the many examples of OVER THE TOP service that I receive every single time I take our cars there for service. I look forward to returning to Nisstech. No, really. I actually enjoy getting in there knowing I will be taken care of. They all work efficiently, with integrity, and with your best interest in mind. It is so rare that you can just let the "experts" handle it. But in this case, you can. read more

The absolute best. Bill is by far one of the most talented and honest mechanics I've had the pleasure of taking my car to. I was recommended to Nisstech by a friend of mine when I moved to the area four years ago, and have been recommending them ever since. Service at Nisstech is top notch and fast: never have I had any problems with any work done here, nor has Bill ever failed to complete my work the same day, even on short notice. I am generally on a pretty tight budget when it comes to car repair, and Bill has never once failed to make sure I get the most important issues taken care of first. He explains what needs to be done today, what can wait, and how much work I can fit into my budget. Not only that, but his quote for new front brakes on my Maxima was close to 50% cheaper than the last auto repair shop I had them done at. Overall, Nisstech is a no nonsense, trustworthy business that I couldn't hold in higher regard. I will be taking my car here for as long as I live in the area. read more

I feel so fortunate to have meet Bill at Nisstech Automotive this week. What a great guy and true professional. He is one of the good people and a truly honest businessmen here in Sonoma County. I thought the transmission on my 2006 Nissan Frontier was shot. Bill determined it was a much less serious problem, repaired it perfectly, and saved me thousands of dollars. He also repaired the fuel level sensor on my Frontier for $300. This is a well documented problem and has been recalled by Nissan. The local dealer (Nissan of Santa Rosa) would not do the recall repair and wanted to charge me $1,100 for the repair. Needless to say, Nisstech will be my ongoing mechanic in the future and I will tell anyone who will listen to use them. read more

Bill is a magician mechanic!! I thought I was gonna have to pay an arm and leg to get my xterra fixed but thanks to Nisstech I'm rollin again for a majorly reasonable price and excellent customer service. There isn't a better mechanic in the county! read more

I am BLOWN AWAY by the integrity and level of skill that Nistech offers while beating prices of any other place I've been to. I own a cleaning service with multiple company cars, however it's a local business and we are very cost conscious. Their hourly rates are not cheaper, but their skill and timeliness with quality work makes them a GEM in Santa Rosa and you WILL walk away spending much less than anywhere else. I will be taking all my mechanical business through them and will refer everyone I know. It's just incredibly challenging in the automotive industry to find trustworthy and reasonable skilled mechanics...Nistech is indeed just that. read more

I am enthusiastically pleased with the service on my 1997 Infiniti that I received here recently. After being disheartened by another autoshop's quote for my brakes, I was worried about taking it in to be looked at for a second opinion (worried that I might actually have to spend that much money...). However, when I received the estimate from Bill, it was less than half of my original quote. He understood that this is an old car that is soon to be replaced, so he only did what was necessary to keep it safe (and within my budget!). Finding a good mechanic you can trust is hard when you've moved to a new area, and, even though I have only been to him once, I will definitely return to Nisstech for all my auto repair needs and recommend it to others. They are very quick, courteous, and stand behind the quality of their work. read more

I'm so happy that after more than a year being closed due to the owner's Covid experience, Bill is BACK. Same phone number, a different, but very close-by, location. Needless to say, Bill is very happy to be back at work again, as well! read more

I love independent shops. Bill has a great one. Took my Cube in for a tranny flush and change. Got a loaner and it was done in a couple of hours. No must, no fuss, and a fair price. Can't ask for more. Shopping for a car my wife and will make it a Nissan because of Bill's shop. read more

Bill is the most trustworthy and knowledgable technician I've ever had the good fortune to find. He came highly-recommended, and I'm recommending him as well. His quick response time, honest answers and impeccable quality of work are the keys to his continued success. You won't find better! read more

Many thanks for repairing our broken air conditioner and for servicing our Honda for the 120,000 mile service. Danny and Alex were excellent and greeted me on arrival. So nice to have cool air again after 2 years and our faithful car seems to be running well. Our new Nisstech license plate holder makes our car look even better. Thanks again for doing an excellent service at a reasonable price! read more

I brought my car here on the recommendation of my brother in law and I was pleasantly surprised by the high level of customer service and professionalism of Bill and his staff! Since then he has worked on all of our family cars and I have been extremely pleased by the quality of workmanship and attention to detail! I highly recommend Nisstech if you need auto repair or maintenance! read more

HIGHLY RECOMMEND Excellent service, reasonable prices, and very knowledgable! I have 1991 Nissan pick up that I am very attached to. Nisstech treated me and my truck with respect. As soon as you walk in the place you get a gut feeling you can trust them-and my truck is running like a champ! Go there. You won't be sorry. read more

I found Bill and Nisstech ages ago, before he moved into his current location. I believe he was still in business with his brother at the time - so at least 15/20 years ago. I've been in Santa Rosa 45 years and I have had some bad experiences with mechanics as a single woman. Finding Bill was like finding gold. He's incredibly hard working and knowledgeable. I've NEVER had to worry about his honesty and integrity and that's HUGE. I just had him service my old Toyota that I'm giving to my son. I know I can have complete confidence that it's in excellent roadworthy condition. It's real peace of mind. I dread the thought of ever having to take my vehicle anyplace else. Thanks Bill. You're a prince among men! read more

This place is not good! Don't believe the hype!! I normally do all my own services, and repairs as I am a mechanic for the Military. But, I was gone on a long work trip, and my wife decided to bring her 350z here. She had a wicked squeak on her belt, which they recommended to replace and she did. Looking back, on his situation I am still super pissed at their shitty service! When I returned from my Military duty, my wife told me she took the car in, had the belt done, and it was still squeaking. I tried re-torquing the tensioner pulleys and related hardware to the actual torq spec which the owner of Nisstech said they do not do... When that didn't work I took it back to them at about 3pm on a Friday. I spoke with the owner he came out to the car and checked the belt deflection, and said it was too loose. Rather than fix it, he told me to see if it still squealed in the morning and give him a call if it did and they'd fix it. Next morning it did squeal. I called, and stopped by. They were closed... On top of that the car was pending sale, which I had explained to the owner of Nisstech. The buyer of the car was insisting the belt squeak be fixed or no deal. I spent 2 hours of my own time re-setting the belt tension, not to mention going around in circles with this dirt bag!!! Beware, they did shotty work, and didn't make good on it!!! They'll take your $$$ and leave you with PROBLEMS... *UPDATE* After posting this review, the owner promptly contacted me to see how he could make the situation better! I expressed to him that since we no longer owned the vehicle, and since I had to fix the belt tension/deflection issue myself. I felt it was only fair if we could have our money back. He agreed. For this rectification of a sour situation, I am changing this review from a 1 star to a 5 star. I normally do not like to slander businesses especially small ones like this. And it took me over 6 months to come to terms of writing this 1 star review. But I am happy the owner made good on this bad situation! read more

Came here to leave (yet another) 5 stars for this great shop. It's so rare nowadays to see someone so knowledgeable and passionate about their work while giving amazing customer service. Came in with the dreaded "weird noise" that I tried to fix myself but quickly ran out of ideas. Brought it to the shop (next day, yay) and of course noise was gone. Bill was able to replicate the noise and had the problem diagnosed, parts sourced and repair complete THE SAME DAY! My 235k Xterra will love to camp another day. They also did my timing belt a while back which was another 5 star experience. I'm so thankful this shop exists. That's again! read more

I had recently been unhappy with Nisstech until Bill asked me to bring back in my 2000 Honda CRV for another look, as my problem of a "re-start after driven" had not been fixed. I have to say Bill spent the next 2 weeks going over every possible part and testing each until he was completely satisfied. My car now runs a million times better - smooth and the engine purrs. Bill is a top-notch mechanic and has earned my trust. read more

I moved from Hawaii a few weeks ago and bought a 2005 Honda Element. It gave me trouble on the I-5 and I ended up getting towed to a mechanic who changed my oil and suggested I get the car looked at once I was back in Santa Rosa. I jumped on Yelp and found great reviews for NissTech, so thought I'd give it a try. Like everyone else who's interacted with Bill, I feel valued as a person; you can tell he cares. (Bill even volunteered to talk to the dealer who sold me the Element because he didn't think it was right that I was sold a car with brakes in such poor condition.) I'm so grateful to Bill/NissTech that I wish I baked: I'd take over a pie or something. Given my lack of culinary skills, however, well...here's a Yelp review. ;) I'd give Six Stars if I could. read more

I cannot say enough good things about Nisstech. I'm in my 40s so I've been taking my cars in for repairs for decades - Nisstech is hands down the best shop I've ever been to. In the past 2 years, Nisstech has saved me at least $1,000 in repairs and car rental expenses, probably much more. Availability of a loaner vehicle, with advance notice, is a tremendous convenience. But most important to me is the integrity and honesty of Bill Wallahan, the owner, who only repairs what needs doing, and doesn't upsell unnecessary repairs. Ever. There have been occassions where something has required more than one visit so he can fully evaluate the problem, but the cost savings makes it well worth it. In addition, service is friendly and time commitments are always met. I highly recommend Nisstech. p.s. They service many brands of vehicles, not just Nissan and Infiniti. read more