KP Plumbing & Leak Detection Specialists
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KP Plumbing & Leak Detection Specialists
KP Plumbing was recently opened to the public in 2018 after years of being trained by the best in the business while working in the industry for the past 10 years, Commercial, Residential remodeling, and custom plumbing setups. We are highly skilled in all fields of plumbing from Gas systems, Drain lines, to top notch leak detection Diamond Bar services.

No job to big or too small for us. Our main goal at KP Plumbing is to provide the highest level of quality service at a reasonable rate to our customers without cutting any corners on quality of material or service. Give us a call today, Leak Detection Service is our Specialty. Free Estimates, if we dont get dirty, we dont charge you for our visit.

We have experienced plumbers with expert training, equipped with the latest Goldak Electronic Leak Detection Equipment.
Services
We have experienced plumbers with expert training, equipped with the latest Goldak Electronic Leak Detection Equipment. We are more than happy to give advice on which solution is most suitable for your needs, depending on your Plumbing Services. Why not ask us to view your property and discuss the various options with you now.
Plumbing is a vital system for every household that can't be ignored. Water lines are overlooked way too often A proper plumbing system is Vital to run the house smoothly. Leaks and damage can create serious trouble, no matter how small they are. Our Leak Detection Diamond Bar, CA service offers you a wide range of plumbing services.
These systems are the most commonly misapplied water treatment device in the Southern California market place. Sold using many different names "No Salt Water Softeners" - "No Salt Conditioners" - "No Chemical No Salt No Maintenance Water System" "Salt Free Water Conditioner" and many more names that make the consumer feel good.
KP Plumbing is based in Diamond Bar, CA and has served the surrounding areas of Rowland Heights and Walnut with plumbing service and repair for over 10 years. Satisfied customers say that what separates KP Plumbing from the rest is honesty and quality. Therefore, we keep that reputation by providing premier plumbing service repair to every customer.
Reviews (21)
G. K.
G. K.
Nov 05, 2021
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Kevin and his business deserves 10 stars. We had just moved into our new home and the day we finished renovating our kitchen .. I ran the dishwasher and started doing the dishes when we started hearing a "pipe leak" from downstairs. We were assigned a plumbing company with 1.5 stars through our home warranty company and decided we didn't want to take the risk and so I contacted 20+ plumbing companies. We are so grateful we decided to work with KP Plumbing. Kevin was quick to respond, super quick to come out, and very honest. He will be my go-to guy for all my plumbing needs from
Fred H.
Fred H.
Oct 02, 2021
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One of the most professional young man and the most knowledgeable plumbers I have ever had fix my pipes.
He gave me a great quote and he did the job quickly and neatly.
Khine P.
Khine P.
Sep 21, 2021
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I definitely recommend to consult with Kevin . He fixed my shower leak few months ago . It was difficult to find where the leakage was. He was very patient and professional. The price is very reasonable. I am glad that I found good plumbing service near my house
Mathew V.
Mathew V.
Sep 15, 2021
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Friendly, personable, professional. The guys were competent, efficient, and worked fast. They handled requests with the greatest of ease and had great suggestions for when I didn't know exactly what I wanted. This was a last minute installation of an electric water heater. They praised my purchases on the water heater as well as the supplementary attachments that I purchased and installed them as well. The only thing they didn't handle was the electric portion of the job, which is understandable, they are plumbers not electricians. They did have a recommendation on a sparky, whom I hired
K. M.
K. M.
Jul 19, 2021
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Kevin and his crew, Miguel and his team are top notch! They are fast and won't nickel and dime you. In fact they went the extra mile for us and provided quality parts and service! Honestly, I pretty much wont call anyone else moving forward!
Pat W.
Pat W.
Jun 05, 2021
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Kevin provided excellent customer service! He arrived before the scheduled time, completed a detailed assessment, and provided us with the options that we could take to fix our Roman tub issue. He was very informative and provided us a good understanding - thanks so much! Kevin also offered to review pricing of the fixtures that we will be selecting to see if could locate better pricing. Additionally, asked Kevin to help connect a barbecue gas line (beyond what the service call was for) he happily did so (located another problem and recommended a solution (which required a barbecue repair
Nick T.
Nick T.
May 18, 2021
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Great experience with Kevin coming by and fixing a busted hot water pipe. Had someone else come by at first but they quoted a pretty ridiculous price just for the leak detection and left a mess. Kevin came by right after I called and used his cool thermal vision gun to find where the leak was coming from. Gave me a free estimate with options depending on how the job went. He was on time and finished the job much faster than expected and also ended up being the cheaper option. He even cleaned up the last guy's mess up free of charge. Highly recommended for the great service.
Igor La
Igor La
May 17, 2021
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Kevin, hope you are ok. Can't find you.
It is our second time we had to call Kevin and ask for his help. Previously, we had a leak between the walls. Kevin came on Saturday, found the problem, removed a minimum area of drywall and replace a length of the pipe. Fast, efficient and reasonably priced. Today, while we were out of town, another pipe between the walls leaked badly. Kevin came in late in the day, after hours, found the problem, replaced the leaking elbow and charged us very reasonable price again. Very responsive, professional and with a pleasant personality. We will never use anyone
Stephanie K.
Stephanie K.
May 11, 2021
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Review is for phone consultation & customer service.

I reached out to Kevin regarding a malfunctioning water heater. He walked me through what to look for, reviewed my photos, offered suggestions, and advised me on next steps (e.g. what to ask the manufacturer).

Even though we decided to go directly with the manufacturer's partner technician (their parts aren't widely available), Kevin was kind and generous with his time & advice both over the phone and via text (even though it was clear that we may not be using his services), which I think speaks to him as a person and the
Alfredo R.
Alfredo R.
Mar 28, 2021
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Once I discovered a slab leak, I called several companies on repipe quotes. After I tried a few reroutes to avoid a huge repipe project for a house with 4 full bathrooms to deal with, repipe became the only solution left.

What I like about Kevin is he is very professional. He has all the proper documentation organized so that I could even get Home Owner's Insurance discount on my premiums. His ideas on the best way to do the repipe were very good and creative compared to others. His prices are very fair and I really like the fact that drywall and texturing post the repipe is also part of
Arthur K.
Arthur K.
Feb 10, 2021
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Kevin, Robert and James did great job locating the route of leaky pipe. It took some misses and drywall cutouts but found the manifold. It was at least expected location due its crazy routing under the post-tension slab. Repair was quick with the PEX pipe bypassing leaky pipe portion. Very fair price for their time spent at my home and their combined experience and expertise.
Kevin kept with updates of his arrival times when we met for estimate and at appointment day after the weekend in spite of him being close to agreed times.
I think I found an honest and reasonable plumber.
Lauren D.
Lauren D.
Feb 03, 2021
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Just two days after we closed on our new home, my husband and I discovered that the main water shutoff to our home was broken. We sent a message to Kevin on Yelp and he responded within an hour (even though he was actually on vacation!) to schedule an in-person consultation and quote a few days later. He arrived promptly and was prepared to fix our shutoff valve, only to discover we actually had a major leak at our main connection at the street. He immediately began investigating the plumbing within our home and laid out various options available for us to remedy the issue. He was very understanding
Jim G.
Jim G.
Jan 09, 2021
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I noticed water coming out of my floors and figured I probably had a slab leak. After searching on Yelp, I came across KP Plumbing, and boy am I glad that I did. I also called a few other leak detection companies to compare prices, and Kevin offered the best price which made my decision that much easier.

Kevin was very helpful over the phone and was able to come the next day to investigate my issue. Although my leak was one of the most difficult that Kevin had come across, he was able to get the leak fixed in a timely manner, and clearly explained all of my options. He committed to the price he
Jill Whalen
Jill Whalen
Dec 25, 2020
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Positive: Professionalism, Punctuality, Quality, Responsiveness, Value
We received excellent service with fast attention and clear communication regarding the plumbing issue we had as well as reasonable prices. Also very clean and courteous.
Lauren Y.
Lauren Y.
Aug 20, 2020
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This review is way overdue, as things have been pretty hectic during COVID-19.

I first started requesting for quotes for a complete home repipe several months ago, but only in the last few months did my family and I agree to in-person consultations. I think we initially got quotes from 3 or 4 different plumbing companies, all in different price ranges. Our residence is fairly old (built in the late 70s), and is in need of many renovations. The replacement of water pipes was definitely top of the list though.. We had so many leaks (a slab leak and one particular pipe that was 'repaired&apos
Larry N.
Larry N.
Jun 13, 2020
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Our Kraus faucet needed a replacement cartridge and, for the life of me, I wasn't able to remove the top cylinder to access the old parts. WD-40, a wrench, I tried everything...Called Kevin today, and BOOM done in less than 20 minutes. He went out of his way to come by same day, and was extremely professional, efficient, courteous, informative and helpful.

EXCELLENT service, highly recommended!
Alvin Wang
Alvin Wang
May 28, 2020
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Stop right there! If you're looking for a plumber call Kevin. He is a trustworthy man! After multiple attempts to clear a clog in the bath/shower I called Kevin. I described to Kevin my situation and he understood everything clearly and gave me a few tips and pointers over the phone to get the job done myself! He spent time to explain the directions to me and saved me money. Call Kevin as your trustworthy plumber
Christoffersen Weber
Christoffersen Weber
May 05, 2020
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Kevin and his team put about 200 feet of gas line down at our house in two days. Everything runs great now. Kevin's a knowledgeable plumber that you can trust. He's also a really great person. I would highly recommend him.
Service: Repair outdoor systems
Sam K.
Sam K.
Apr 23, 2020
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Definitely 5 star rating for Kevin and KP plumbing. Quickly response to messages and came the next day even after hours. He's is very knowledgeable in finding and fixing your plumbing issue. Called for a leak detection and after a couple tries with different tools he confirmed where the leak was coming from. If you're looking for a plumber that's honest and knows what he's doing, give Kevin a call and you'll get your issues fixed and have a life time plumber you can rely on forever.
Rachael Edwards
Rachael Edwards
Dec 22, 2019
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Everyone from KP Plumbing who has come out to my father's home to help with the plumbing issues we've had has been fantastic. They were quick to diagnose the problems and easily fixed them with minimal fuss and disruption for us. Their pricing is fantastic and we really love being able to use KP Plumbing. We've been burned in the past from different plumbers so finding KP was a godsend! I highly recommend them for their amazing attitude and flawless work!
Pax Prakarsa
Pax Prakarsa
Jun 22, 2019
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Kevin is the one plumber you need. I have worked with many plumbers in the past but I would highly recommend Kevin above everybody else. His rate is reasonable. He's very courteous. And his work is excellent. I am glad after all these years finally I have been able to find the one plumber that I can trust. I just wish I had found Kevin much earlier.