We had Cupertino Plumbing replace all of our old galvanized and cast iron drain pipes, along with installing a new water heater and two new toilets. We are very happy with the work they did. It was a major multi-day project that required cutting holes in walls and ceilings. They were pleasant, professional, and responsive. Everything works great now, and the places where they patched the walls and ceilings look nice. A really good job. We definitely will call them for any future plumbing work.

Terry Johnson


This is a fantastic company (Cupertino Plumbing), I received excellent service from Mario. We texted back and forth on various questions I had regarding my kitchen water filter system and the airgap line for my dishwasher; he was always responsive. My previous plumber walked into our home without putting on booties and was unorganized, but Mario always put booties on his shoes which I appreciated, he was knowledgeable, organized, did very high quality work, communicates well, smiled a lot and was happy, and is now my go to guy for all future plumbing needs. Mario is best plumber I’ve known.

Jim Kuehnis


Cupertino Plumbing just replumbed our whole house and rebuilt our drainage system. They were efficient, communicative, and timely every day and went to great lengths to keep things clean and tidy. Every afternoon they would set expectations about the next day and every day they did what they say they would do which we very much appreciated. For big plumbing jobs they quality of workmanship and service can’t be beat.

Maggi Oberson


Cupertino Plumbing is not the cheapest out there. They are on the competitive or expensive side. The reason to call them is for their outstanding professionalism, and the fact that they have a lot of people who can be there really soon when you need them.


Happy Customer


Very good company. You can’t go wrong using this plumbing company for all your plumbing needs. No job too small. Their years of experience are very helpful in problem solving.

Pauline Brady

Happy Customer


A rare instance of a plumbing company that is organized and acts very professionally. They take your calls promptly, follow-up, make sure to send you the best technician for your problem. Strong recommendation from me!

Matthaeus Krenn

Happy Customer

CUPERTINO PLUMBING is a really good company. They did some work for me, and I was happy with their response time, I was happy with the price they quoted me, and I was happy with the job they provided me. I’d give them five stars, they gave me very good service with quality workmanship.

Karen S.

They have an excellent team. Frank, Sr., his son Frankie, and Mario are all very knowledgeable. They are wonderful people. I recommend them without blinking an eye. They are very professional and know what they’re doing. CUPERTINO PLUMBING has done three jobs for me so far and I will use them again.

James D.

It is a very good company. I called and was treated very professionally and courteously. The repairman came out and got my toilet flushing again, which was great. I highly recommend them. Their prices are reasonable and they do a good job. Thank you so much.

Wayne C.

This isn’t the first time I’ve used CUPERTINO PLUMBING and it probably won’t be the last. They do a fine job clearing my drains when they get clogged. They respond quickly to my calls and the plumbers know what they’re doing. I recommend CUPERTINO PLUMBING.

Marilyn O.

I received very good service from CUPERTINO PLUMBING. They repaired a pipe under my bathroom sink, which had eroded, so they cut a hole in the wall, fished it out, and replaced it. I recently referred them to someone I know, and I would definitely call them again if I have any further plumbing issues.

Arlene K.

I am a property manager and have used CUPERTINO PLUMBING in the past. They always answer the phone and they always do good work. They have great follow-through and are enjoyable to work with. I have recommended them and will recommend them to anyone that needs work done. Thank you for the quick and exceptional service!

Stephanie B.

CUPERTINO PLUMBING did a great job for me, I’d give them a gold star! I called when I had a leak in the bathroom. The technician was prompt, polite and professional. He was able to make the diagnosis quickly and let me know what was going on. The pipe had become corroded and rusted so it was leaking through the cabinet. He was able to fix it and everything is fine now. He did a good job explaining everything. He was professional, courteous and knowledgeable. He was respectful of my home. Their pricing was good. I would use CUPERTINO PLUMBING again and I’ll continue to give them gold stars!

Mike B.

Everyone Was Sufficient & Took Care Of Everything As Quickly As Possible – Everyone at CUPERTINO PLUMBING was fantastic and sufficient with their work. There was water and other liquids leaking under our kitchen, and our landlord found and directed us toward Cupertino. They got everything cleaned and taken care of with little to no mess, and they did everything they could to minimize the smell. They took care of everything as quickly as possible. They were all very polite, and I would absolutely call them again if I have any further plumbing issues.

Carolyn C.

They came out and fixed a slow running sink that was totally my fault. I ran it in the wrong direction doing an experiment that didn’t work out. They straightened it out for me and managed to fix the problem I made that was really very difficult! They arrived on time and there was zero clean up to do when they were finished. I had some scheduling issues but I think it was one of those things where they could benefit from improving the back end of the office better. I think they are overscheduling the guys and it did take a great deal of time giving my information to the person who was doing the scheduling. They have good competent people doing the plumbing but I think they need to fix the back end for office with scheduling.

Robert W.

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2784 S Bascom Ave San Jose, CA 95124