Paul is so nice, polite and very honest. Not only that, he's price beats all the other plumbing company's that reached out. Also after he does the work, he double checks his connections. Perfect! He did the work the same day he came out to give the quote too. Don't listen to the negative reviews. Paul will be my go-to plumber from now on. Thank you Paul! read more

Quick emergency service that resolved the issue. I called Paul on a Friday afternoon and he immediately came within 15 minutes to fix the problem. read more

Very reliable and reasonable pricing. Trustworthy. Will always call him when I have plumbing issues

Rude, really rude I just made an initial call said hello and right away was greeted with "WHO IS THIS" I run a business so I know bad customer service, if you are on Yelp you should have a better rep ore with clients, I had a lot of business to give but bad form read more

I wanted to help korean business in DB area, so I called him and he gave very expensive quote. I said it's little too much than I expected in very polite way, then he hang up on me! Wow! Never had that experience in neighborhood especially he exposes his personal address in Yelp. read more

Our kitchen sink was clogged, called Paul for a quote and he made it here in less than half an hour same day. He gave an estimate after assessing the problem and got to work. He cleared the pipes, but we discovered that the pipes under the sink were leaking water, so he changed out the whole thing in under half an hour. Overall, the job took about an hour or so for a very fair price. Professional job for a more than fair price. Definitely recommend Ace Plumbing! read more

My kitchen sink was clogged up and I wasn't sure if anyone would come over during this crisis time. I was like why not give it a try. I found out that he want far from me and he came in five minutes and got it fix. It was also close to closing time. Thank you for coming over last minute. read more

All my bathrooms and toilets were clogged on Saturday morning, called several plumbers and they all quoted me near $500 to be onsite. Found Ace Plumbing and spoke to Paul on Sunday morning, he offered to drop by the same day and quoted us only $200 to clear our main sewer line. He came as promised and after inspecting the problem, said he needed to bring an extra crew to do the work so he said he'll return the next day. Together with his crew, they got our sewage line unclogged on Monday. Since he had to drop by my house for 2 days and probably spent over 1+ hour of his time figuring and fixing the problem, I thought he would charge me more but when I asked him "how much do I owe you?", he simply said $200. I have already recommended Paul to some of my family. Very professional, highly skilled, super honest and strongly recommended! I'd give him 10 stars if I can. read more

Awesome service! I called with a tiny leak in a bathroom and was called back promptly by Paul. He showered up 20 min later just like he said he would. He explained to me what the problem was and fixed it very quickly! Had aome great conversations with him as he worked and was very accomedating about followinh me to the bank close by so I could get cash as I had no checks. He does great work, is kind and a pleasure to work with. Any more plumbing problems and he will be my first call! read more

Last week we had what we thought was a leak in our washing machine. It turned out to be a stopped up drainpipe. As I mentioned in our previous review, we called Ace Plumbing to help us out. Paul Han came out the evening we called him and cleared the drainpipe and no more water on the kitchen floor. After Paul left we found that the shower drain was also stopped up. I immediately call Paul. He came out the very next day at 9:00 am, cleared the drain and checked that the washing machine drain was not affected. I believe we were charged a very reasonable rate, but it was Paul's timely response to our needs that was most important to us. Thank you Paul. We hope we won't need to call you again, but if we have another plumbing problem we will call Ace Plumbing! read more

Called them around late 6pm and told them the issue with our toilet and tub being clogged. Told us they would come in 40 minutes. He was very professional and was able to unclogged the main sewer line. Called other two plumbers and told us that they weren't able to come today and would come late tomorrow evening. Overall, very satisfied with the services and that they cared to come even after hours. You don't see great service like this and that he cared about his customers house not smelling like sewage. read more

Paul was great very knowledgeable and professional he re piped a new main water line from the water meter to the house under the concrete drive way. Very happy I would highly recommend him. read more

Ace Plumbing - Plumbing Near Me - Diamond Bar, California

My parents had the main line break, insurance was useless, they recommend a place that quoted over 8,800. We got a recommendation for Paul, he came next day, started the day after and after 12 long hours we had a working shower again! Was very professional and friendly. Plus saved my parents a ton of money by doing it a different but just as good way. Would 100% recommend Paul to anyone read more

I'm reviewing primarily for the cost of service, which I think is way overpriced. His mannerism, service overall was good and professional. He was also prompt. I called him in since I had sink water draining back into my dishwasher, thus creating a floor leak. At first upon arrival- he eyeballed the situation and said, "oh you have to call the appliance company." Since the leak is coming from the dishwasher. I said, yes that's separate issue, but what I called you in for is the fact that slow draining water from sink and perhaps an improper hose placement has caused this--so he looked and voila, "ohhhh!!!! Yeah well look at that..the hose indeed and sink needs to be snaked." Why do some service contractors do this? They run their poor diagnosis just by looking, I get you have experience and feel confident but just do the proper assessment first before taking a pose and telling the customer what they need to, then eating it. Anyway for 10-15 min work--it cost $130 for snaking the drain and elevating a hose on he bottom using a power tool secure it. read more

Paul is very knowledgeable, friendly and helpful. Will continue to utilize his company for plumbing concerns.

Paul was awesome! We had a leaked from our ceiling and he came right away. We are very satisfied with his work. Definitely recommend!!!

Don't be rude to your customers! Negative stars! Do not use! Quality customer care is an important attribute that this company clearly does not have! We took our business/money to KP Plumbing and he was awesome. read more

Good service , he came really quick , gave me a great deal on a clogged sink . He was quick on finishing , and he is a local which is a plus

Paul was amazing! Helped us fix our leaking shower in matter of an hour and got to our home immediately. Will definitely be calling them for future services. Thanks, Paul! read more

This guy Paul is fantastic! He was recommended by a long time neighbor. Called this morning (on a Saturday) and he was here by 2:30. He installed a new toilet (the tall kind because I'm older), the kind that flushes instantly and was in and out of here in 45 minutes. Very reasonable too! He will be my plumber from now on! read more

Paul is really cool and honest about what the issue was and how to solve it. I was very satisfied with his work and knowledge about our toilet issue. He's totally my go-to plumber now whenever I have a problem! read more

I've never written a review before this. I had a mainline clog on Friday evening. I called Ace, and he said he could be over in two hours. He gave a rough estimate for the job, which was incredibly fair. He was able to make it in 45 minutes. He snaked the drain from three separate locations, and got the water moving again. He then asked to follow up the next day. On Saturday he returned and snaked the drain one more time. In addition he adjusted the plumbing under the kitchen sink. The water is draining great and he stood by his original price. Great job! read more

Our garbage disposal was leaking water. We called our warranty service & the earliest they could come out was in 13 days! We couldn't go without a kitchen sink for that long. I researched local plumbers, found & called Ace plumbing & Paul. He came out same day about 3 hours after I called. He was professional, personable, neat & clean & got the job done in a short amount of time. Cost was reasonable. I highly recommend him!! read more

We had a leak somewhere in The wall of our house which made our carpets soggy with water. I called Ace plumbing and Paul came over gave me an appointment on the same day he was very smart in detecting out where the leak was and exactly he found the leak exactly where he thought would be. he was very reasonable and gaurantees his work for lifetime !!! I saved his number as plumber asap!! I would highly recommend him! He is very honey guy. read more

I am not a active yelper, but I felt the need to share my experience with Paul from Ace Plumbing. I will be as detailed as possible so you can be the judge of his professionalism and quality of work. I have never met him in person, but only through phone conversations. I would say the 1 star would be for showing up fairly on time for the 2 times he was scheduled. I called Paul for tenant of mine. There was a leak coming out of the kitchen faucet handle and under the sink. I scheduled him to go see what the problem was. I also chatted with him saying I was annoyed since this was a new development and the faucet was only 2 years old. Told him I was going to bring this up to the builder but since it takes time to schedule a builder rep to come out, I needed to get this looked at first since the leak was ongoing. I was never there to see what kind of work he actually did. Once he was there, he called me and said that the leak was from the handle causing it to leak through the body of the faucet leading to under the sink. He told me the cartridge in the handle was bad and the whole faucet needed to be changed as he was unable to get the part. He said he would turn off the water first and I should bring up with builder if they could replace it. Billed me $65 which I thought was fair. After meeting with builder and was told it was past warranty already, they directed me to where to get the part to replace. I called Paul and he said he could repair it if I had the parts.He did tell me that replacing the part may not guarantee it would stop the leak. I was assuming he meant it could be leaking elsewhere. I decided to get the part and take the risk hoping that would solve the problem. I scheduled him out to replace the part. After installing the new part, the leak became worse from the handle. Again, I was not there to see the work done, but my wife was there and described to me on the phone what was happening. Now he blamed it on the new part being defective. So he put back the old part and said he tightened it more and guess what. The leak stopped. This time the bill was $120, but seems like all it took was tightening the original cartridge in the handle. This is where his professionalism and attitude comes to play. I asked him if he could give me a better deal and his response was if you don't like my prices Ill need to go find somebody else. I said I am going to pay him but was little unhappy with the service and if he cared to listen. He said he doesn't need to hear why as he rendered his services. I told him this problem could have been fixed the first time and all he said was I wanted the builder to replace it. Obviously if it just required a tightening of cartridge, he could of fixed it since I already need to pay him for coming out. I told him I was going to bring it up to the builder because he said the cartridge was bad and recommended the whole faucet to be replaced. But at the end, it just required tightening of the part which could have been done the first time. He decided he didn't to hear from me anymore and ended the call. I just take it as a lesson learned, but this is definitely one I will never use again or refer. read more

Paul did a great job at a fair price to unclog my shower drain. He came promptly and was very friendly and courteous. I highly recommend his services. read more

Response very quickly and came to my house right the way! (Maybe because I live in Diamond bar lol ) Did really good job and pretty reasonable price compared to the other plumbers. I will definitely call him again! Thank you read more

Paul came and fixed our slab leak a week ago , yesterday we found that our main water meter continue to cycle without using any water , I called Paul and he immediately showed up within 30 mins on a Sunday and was able to pinpoint where the leak is coming from on a different location , he truly cares for his customers , he is knowledgeable and professional . Price reasonable !!!!Will definitely use this guy for all our future plumbing needs . Thank you very much Paul For your immediate attention regarding our concern. read more