Castle Plumbing
Company Overview
Castle Plumbing offers natural gas and electric-powered water heaters ranging from 30-100 gallons. We are your trusted source for all water heater solutions! Don't forget to tell us you found us on Yelp.
Business Services
- Bathtub installation
- Bathtub repair
- Drain installation
- Drain repair
- Faucet installation
- Faucet repair
- Garbage disposal repair
- Gas line installation
- Gas line repair
- Hot water recirculation pump installation
- Hot water recirculation pump repair
- Plumbing inspection
- Plumbing installation or replacement
- Plumbing repair
- Sewer installation
- Sewer repair
- Shower installation
- Shower repair
- Sink installation
- Sink repair
- Toilet installation
- Toilet repair
- Water heater installation
- Water heater repair
- Water pipe installation
- Water pipe repair
Business Location & Hours
Mon: | 8:00 AM - 5:00 PM |
Tue: | 8:00 AM - 5:00 PM |
Wed: | 8:00 AM - 5:00 PM |
Thu: | 8:00 AM - 5:00 PM |
Fri: | 8:00 AM - 5:00 PM |
Sat: | Closed |
Sun: | Closed |
Recommended Customer Reviews

I bought Fidelity Home Warranty. When my water heater stopped working, my ticket assigned to Gus.
Gus came twice and replaced the water heater, also charged me $565 out of pocket cost. But there is no permit submitted to San jose city.
The water heater was installed 1 month ago, but no permit record.
When I call Home warranty, they said Gus will give me a call.
When I call Gus, nobody answer.
I have replaced a water heater 2 years ago for $1300 total cost with permit/city inspection.
Nover buy home warranty, they does not allow you to choose contractor. Plus you have to pay extra dollars without city permit/inspection.

I had an issue that needed to be resolved quickly. My clients had another plumbing company come out and they completely misdiagnosed an issue. I called Gus. He came to the house at 6:00 pm. He immediately put my client's mind at ease, quickly figured out a solution (which potentially saved my clients a tremendous amount of money, aggravation, and unneeded repairs). On top of all that, Gus is a very nice guy, very professional, and knows his business.

So Castle Plumbing shows up and he has a dragon on his truck! A freakin' dragon! Awesome.... but how was the work?
The work was excellent. I had a toilet leaking and Gus took care of it. It wasn't a hard fix but a vital one. Ending up with water all over the floor sucks, and you know it's only going to get worse.
Gus showed up on time, was profession and cleaned up nice. His price was right for the service and I am completely satisfied and did I mention he has a dragon on his truck???

Gus from castle plumbing is a very nice person overall. More than that, he knows exactly the best way to do things and what to do.
He does not recommend or encourage to do things that are wrong, just because they are simple. Which is something I really appreciate.
He always answers the call and was able to fit me into his tight schedule for my quick need.
Overall, great guy, great work , very very very reasonably priced and perfect work

I doubt if this business could survive if it's not with home warranty 'in-network' referral. GO LOOK FOR OTHER CONTRACTORS AS THEY ARE WAY CHEAPER FOR SAME SERVICE AND MORE HONEST.
So this is my experience: My water heater was down on Thursday night and my home warranty gave me this number because he's 'in-network', I called lot times and nobody ever replied to me so on Saturday I found a out-of network contractor to take a look, they said I needed to replace the whole thing and quote for $1300. On Monday the following week this guy finally called me back and I thought since they are in network they could be cheaper so I could them in (I was totally wrong on this). He gave me the same conclusion that I need to replace the heater and I told them to start.
The home warranty called me at this time to confirm the work and they said I could do cash out for around $1500 but I had no idea there is option for cash-out before this second. (Since this guy charged for $16xx for warranty) I feel that he charged more expensive as I know other people can do $1300 so I stopped them and I said I wanted to do cash-out. Noting at this moment they just removed my old tank, however this guy yelled at me and he said he gotta charge for what he has done(he said something like 'I have kids to feed', same as other review mentioned, huh ), I said OK I still do cash out just give me the number you want me to pay you for removing the old tank..., and he called the warranty so my warranty didn't allow me to do cash out since they already 'started' the job. Alright, I'm ok with paying more money, but I want to make sure I have the same efficiency for water heater. I said my current heater is 40,000 BTU and he said no problem the one he provided would be at least that value. 1 hour later he's back and he provided me one with only 34,000 BTU(the larger BTU the faster your heater heat up the water). I questioned why this is different from what he said before, AND HE STARTED TO MAKE STORY LIKE 'THIS IS THE NEW CODE FROM CITY', REALLY??! IF THIS IS TRUE, WHY DIDN'T YOU KNOW AND YOU DIDN'T TELL ME 1 HOUR AGO? My old heater heated very fast, but this one he gave me HEATED SLOWER SO I'D HAVE TO WAIT FOR LONGER.
MY SUGGESTION: Shop around as I know now that contractors working with warranty charged even much more than those who don't. If I go with out network contractor, the quote was $1300, and this guy charged warranty $16xx(I paid him $200 out of pocket for 'modification' which obviously he didn't do any modification he just used this to charge more, plus $75 as deductible).... DISHONEST+SCAM!

Gus is expert pro, He fixed my toilet problem that other plumbers were not able to fix. They cleaned up after the service. I will hire them again.

Great Service
I use Old Republic Home Warranty and they sent 7 different plumbers out to my house. The eighth plumber was Gus from Castle Plumbing. Gus was able to fix the problem and improve our overall plumbing in the house. He went the extra mile to get the job done and we appreciate it. Thank You Gus

When I bought my townhouse 20+ years ago, I soon after had to replace the hot water tank. At that time it was with a home warrantee co. There was a label on it that said Castle Plumbing, so I called. I spoke with Gus. I informed him that I no longer had the warrantee, but that the tank was leaking ( it had worked probably 22-23 years). We scheduled time the next day. Gus arrived when he said he would. He was able to remove that old 50gal. tank himself, and in about 1.5 hr. I had a brand new & more energy efficient 50 gal tank completely installed. He hauled the old tank away. I am very happy and have no complaints. Thanks, Gus, Lori

I do not understand the bad reviews written prior. Gus fixed a problem that 2 other plumbers could not fix. It was a call via a warranty, he called me within 24 hours for the appointment, came on time and solved our concerns! He also gave us a receipt without even asking, proof of professionalism. I will definitely request him again if we have another issue. Thank you!

Our service call was for our leaking laundry sink. We called our home warranty company back and had them send out a new plumber since the first plumber went MIA on us. Gus called and asked if he can be there in an hour. He came and changed our faucet on the spot. He was very nice, courteous and efficient. He was there for about 30 minutes and now I have a beautiful new faucet, and I can use my laundry sink again!! Thanks Gus!