12 years of experience
San Francisco-Oakland-San Jose, CA

I have over 10 years of experience of hands-on, continuous education, servicing, and repairing of almost all makes and models. I am an ASE certified automobile technician. I'm experienced in repairing engines, transmissions, suspensions, HVAC, computers, modules, and accessories. I use current scan tool equipment and software and have a wide range of speciality tools to help pinpoint malfunctioning components and systems. I'm a firm believer in clear communication with customers and always explain exactly what's going on with your car.





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on October 27

Best mechanic I have had come out and work on my cars

on October 19

Jason was professional, curtious, and did an amazing job. I feel he went over and above what I request him to do. I will request Jason anytime I need an honest mechanic.

on October 21

Great mechanic. Very thorough and knowledgable about how circuits work and sensors systems. He explained everything that was going on with my car and only replaced the parts that were actually needed. Very happy with a job well done. Highly recommend!

on October 24

Jason did a fantastic job, and even suggested waiting to replace parts rather than push me to go forward with services I didn't currently need.

on October 04

Jason it great. He isn't bothered when I ask my many questions, trying to understand the repairs (so I don't get ripped off). He makes sure to put down a tarp so that fluids don't spill in my driveway. Not all their mechanics do that.

on September 30

Jason was great ...he was able to pinpoint the additional issue with my front suspension and completely and effectively fix the problem and the total was well within my established budget

on September 24

Jason was on time and very professional, he adapted well on the first visit based on a change in the order he rescheduled with the new parts as I requested and the final price for the work came in under the original quote the first work eliminated 99% of the rattling in the front but Jason wasn't satisfied and came back to troubleshoot the issue that remained and Identified that there was another issue . he proceed to get me an affordable repair quote that was within the budget I had set for fixing my front suspension issues



GMC Yukon
on September 21

I was pleasantly surprised how smooth this process went. This was my first time using MyMechanic; although I was somewhat apprehensive; I thought it was a great idea and the repair quote was very competitive. I liked the idea of having the repairs done at my home. Jason did a great job and even recommended some things that save me money from the original quote. The replacement radiator was new and the job completed in a little over an hour. Jason was so professional and efficient and let my place very neat.

on October 03

Jason is hands-down the best SAE certified tech out there. His troubleshooting skills, patience, and experience are bar-none the best and I am a "car guy". He doesn't overlook anything, is meticulous as to how to eliminate both electrical and mechanical parts to get to the root of the problem, uses current technology well for aiding in the repair and goes above and beyond the call of duty to satisfy the customer. He repaired a Mercedes 722.6 5 speed automatic transmission in my 2005 Crossfire SRT6 and ensured that it operated correctly. The common problems were discussed ahead of time as both he and I did the research based on the speed-sensor codes and symptoms it was displaying. The "conductor plate" within the transmission body was suspected and confirmed as faulty through exterior testing. After replacement of this part containing the transmission speed sensor, the car ran fine again, and will be tested by me during the upcoming weeks. Two thumbs up for Jason. He's a valuable asset to YourMechanic.com and I will have him do other work on my other sports cars as he knows his stuff and has sports car experience, even with off-brands like the Mercedes clone Crossfire.

on September 14

Jason is professional and courteous, he is prompt and efficient, I specifically ask for Jason though I will have to settle for others and pray they are as knowledgeable

on September 14

Jason did a first rate job. He got right to work, knew exactly how to correct the problem and had the correct replacement starter with him. The whole process took slightly over 1 hour. This was my first experience with My Mechanic and it was excellent thanks to Jason's professionalism.



Mazda CX-5
on September 06

Jason has replaced my dead battery, he knew everything that needed to be done and made also a general check of my vehicle to make sure nothing else went wrong. He researched common problems of my vehicle make related to battery exchange online and made sure I don't have any of them before he was satisfied with the work. Very friendly and professional.

on September 07

Highly knowledgeable and a skilled worker. We had a long chat about car stuff and I learned a lot of new things from him. Would recommend without hesitation.



GMC Sierra 1500
on August 31

Jason was very competent - he was able to identify a long time existing issue with my vehicle that I had known about and helped me problem solve some solutions. He ended up giving me a credit and fixing the problem, while saving me money.

on October 12

Simply put, this was a great experience- so much better than shopping for a good mechanic, going from shop to shop.

on August 12

Jason did a great job replacing new front lower control arms (with bushings already installed on them) on my 2006 Scion Xb. Very methodical and knows the ins-n-outs of various vehicles. I will be using Jason for my other vehicles as well, as their maintenance and fix-it schedules come about.

on August 09

Jason was prompt and called me prior to his arrival. He was very professional and exhibited a workman like competency throughout the repair. I am very happy with the result, and I saved a substantial amount versus the dealer quote I was given. I will definitely use Jason for future repairs and servicing, and will enthusiastically recommend him to my friends and family. A real find!

on August 09

Jason is very professional and walked me through the details of oil change and inspection. He also gave me few tips on hybrid battery performance and maintenance. He thoroughly checked engine, coolant levels, oil leaks and tyre pressure to make sure everything is good. I really don't want to go to dealers any more and I am very happy with the service and strongly recommend him to my friends.

on August 03

Jason replaced the headlight in my car. Not a major job, but during the work he gave me some great recommendations about how to take care of my car. Jason was right on time, very professional, and knowledgeable. I really appreciated his friendly, positive attitude and his helpful tips. I'll definitely use YourMechanic again and I can recommend Jason highly.



Scion xA
on August 01

showed up 20 minutes early (called ahead), had the work done in an hour (alternator replacement), tested battery and charging system... excellent, will definitely call first for the next one.



Nissan Sentra
on March 26

Jason arrived on time, and was able to recommend a resolution that was reasonable and practical. He took the time to explain the process, and to be sure that everything was working properly. He also did a complete check of the engine, and filled the washer fluid. I enjoyed working with Jason, and would have him work on my car again.



Hyundai Santa Fe
on October 02

I have had Jason work on my car several times, he is always soft-spoken courteous honest and reliable. He only suggests what is needed for my car to run optimally and never tries to over- sell. I recommend Jason to everyone I know with a car. I am very pleased with Your Mechanic and the mechanics they employ.

on October 15

Jason was extremely professional. He is very good explaining everything. Jason went above and beyond the service and 1) Cleaned the fogged residue on the cars headlamp and 2) check into a noise the car was making and isolated it to right strut. Esp after i mentioned that I just bought this car after getting pre-purchase inspection through YourMechanic. Jason acknowledged that issue should have been caught in the pre purchase inspection. I would be happy to use Jason again.



Chevrolet Malibu
on October 19

Very impressed with his technology. When I peaked on him, I noticed he was using a laptop to do a diagnostic. He informed me that my Camshaft Adjuster Solenoid needed to be replaced. He offered to pick up the part and fix it that day. I was impressed that he was willing to drive out of his way to fix my car. He completed both jobs in a timely manner. My check engine light is no longer on and my car drives like it's brand new! I am very happy with his work and will recommend him to everyone I now.



Audi TT
on May 09

Car - Audi TT Sports; YourMechanic/ Jason Certeza I have taken the services of YourMechnic multiple times, and have always been very happy about it. in 2015, Yourmechanic, worked on changing my timing belt, starter replacement and serving. They also took care of my yearly servicing. In 2016, YourMechanic took care of powersteering sensor replacement and yearly servicing. Jason Certeza has worked multiple times with my car. This appointment was wrt to some squeaking noises from the power steering. He inspected the car, and quickly found the sensor to be defective. We went ahead to order the part, and Jason would fix it in the next appointment. Jason has deep mechanical knowledge of car(mine is European). He diagnoses, the problems very accurately, and explains very well. Jason also goes the extra mile, helping to buy the correct item. All in all, i would recommend him very highly, and would reach out to him for further repairs.



GMC C1500
on October 26

Jason was very professional ,called and let me know when he was arriving, and the job was done in a timely manner. Thanks" Your Mechanic" your service is truly needed and appreciated .


  • 60,000 Miles Maintenance ...


Nissan Sentra
on December 02

Awsome mechanic. Took the time to go through to let me know the steps he taken and procedures he had performed. Great knowledge and information, Jason also took to the time explain some general and basic questions I had as I am still a new driver.

on December 10

I highly recommend Jason. He made me feel very comfortable with fixing the issue I had and even assisted with identify some additional issues I was having. Very courteous, professional and timely. Plan on contacting him again for future car repair needs.



Ford Ranger
on December 14

Jason was great. I have already recommended him to a friend. He showed up right on time and wonders of wonders, told me there were some things that I'd thought I needed but weren't really needed at all! So he did everything necessary and my bill was less than I'd thought. Thank you Jason! The truck is stopping just great now, and I'll call you next time I need more work done. 5 stars!

on December 29

Jason was very courteous and knowable with the problem of my vehicle. I appreciate him for his cool, calm demeanor. He spoke with confidence and a gentle tone. Jason was very helpful! Jason is the Best Mechanic I've come across. I will recommend him to friends, definitely!

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