I requested for someone to come over and diagnose why we weren't getting hot water despite having a new water heater. Within a couple of hours, Joseph came to the house. I was told prior to his arrival that I would have to pay a service request fee of $69 (I think), but that this would be included in the fee for the repair. After about half an hour, Joseph gave us the number to an electrician they work with because not enough electricity was going into the water heater. He also refused to charge us anything because he said it didn't feel right to. Wow, what an honest man! The electrician came at 7am the next day. He squeezed us into his already packed schedule. Within an hour, he got a current to work, which meant he set the stage for Joseph to finally conduct the repairs. When Joseph returned the next day, he executed the repairs and had me test all our showers and our faucets to make sure hot water was coming in. For the first time in years, our water pressure improved AND we finally had hot water coming in. I told him I wanted to hug him! And he charged a reasonable price for his efforts. I'm so lucky I got excellent, efficient service from honest people. You can't get that kind of integrity and exemplary customer service from most businesses these days. I'm so happy I used this company and will happily recommend them to everyone. read more

Had Isaac come to clear our shower drain today, Tuesday 11/18/2025. Called this morning, he came before noon and fixed our drain! Please call Isaac & Sons for any plumbing issues! He's very honest and he will help you save your hard earned money! Isaac's workers have also fixed a problem in our mainline, replaced a water softener, and unclogged our toilets. They also saved my 97 year old mother thousands of dollars after another plumbing company tried to scam her. I trust Isaac & Sons! read more

I have been using Issac and Sons since it was just Issac. Issac and all of his employees are prompt, courteous, respectful of my property, and really know their stuff. Every time I have to call for a plumber, Issac & Sons in on speed dial. Last week I needed their services because I had a handy man doing some work, including replacing a vanity. The next day my wife noticed a leak under the sink. I didn't need to call the handyman back, I immediately called Issac. He sent a man out who fixed the leak ( and the other guy's work) quickly and affordably. Issac is the man and the business to call first for any plumbing work, large or small. Thanks again! read more

You should call them! Isaac & his sons came to our rescue when we had an urgent need when a valve under kitchen sink broke. Isaac scheduled himself to come out promptly. He and his sons have a quality business and very professional and friendly demeanor. Wr are new to La Verne and so called a few plumbers--Isaac was the quickest to help us. Give them a try! read more

Called last night due to a pipe connected to my water heater leaking. Thought for sure it was going to cost a fortune due to time and need. This company will be highly referred. They were honest, experienced, professional, I highly recommend! read more

Isaac plumbing did a very nice job reinstalling a new kitchen sink for us. The technician Chris was very competent in his duties. My kitchen sink project tuned into having some of my 70 yrs.old waste lines under the house repaired also and Chris again showed that we called the right plumber for the job. And I know quality plumbing work when I see it. I was a plumber for 30 years myself. So thank you Isaac and sons plumbing and especially Chris for being on time and knowledgeable in your work. Dennis Wade read more

Isaac came out because we had a sewer clog that was backing up in multiple bathrooms. It was a late night call, but he was prompt, troubleshot the issue, and got us flowing again. We've located a trustworthy tradesman for any future plumbing needs! A+++++ read more

This company is great. The cost was half of what we got quoted from another company. Isaac has great customer service. I had a a full repiping in our house and they cut holes in our walls. But when they are done it looks like it never happened. I would highly recommend this company. Joesph is great. Thank you guys. read more

I highly recommend Isaac and Sons Plumbing. I called yesterday for a quote and Isaac scheduled the plumbing work to be performed the next morning at 0830 am. Isaac the owner of the company came in person to oversee the job. Isaac and his crew were professional and courteous. Isaac did a great job. They mopped the floors after they completed their work leaving my home nice and clean. read more

Isaac & Sons stepped in and fixed the mess the previous guy had created! They are honest, reliable and know what they are doing. They really saved the day. They're now my go to guys for all my plumbing needs. read more

Fantastic service. Knowledgeable professionals who want to help you and not upsell you. My go to people when I need help.

As a small business owner myself I appreciated the personal service from Isaac. I used Isaac once before on a smaller job in my master bath which was resolved, so with that when my 75 gallon water heater sprang a leak on a Sunday I text Isaac to give me a call the following day on Monday not wanting to bother him on a weekend, well he immediately called me to assess the problem. He showed up first thing in the morning with his son and replaced the water heater at a very reasonable price. As I mentioned Isaac had his son with him who is learning the trade, this young man has a very bright future, very respectful to his father,asking questions and the drive to learn soon he will be a success. Every homeowner wants that go to tradesmen, Isaac and sons is my plumber. Joe M read more

Isaac and Mark came out right away and got the job done in a timely manner. I will definitely be calling them again for my plumbing needs. *Reliable *Respectful *Professional *Fair price *Quick read more

We had a leak under our kitchen sink. Isaac came out on a Saturday and gave me a very reasonable quote, and the work was done Monday morning. He even checked in the following day to make sure everything was ok and we were happy. Such great service! I will definitely be recommending him to friends and family and will surely give him a call the next time we need a plumber :) read more

My plumber for the last ten years, always available when I have questions or need a repair. Profesional with attractive honest pricing. Fred Smith read more

If you're looking for any plumbing work, to be done by an honest person who knows what they're doing, look no further. Make the call and be in good hands with Isaac and sons. read more

Extremely honest and Thoroughly informative. Great experience. Fixed our backed up system and responded quickly.

Issac is a true professional. Excellent customer service and the product is top notch. He's a licensed plumber, which makes a difference in the knowledge he has when doing a job. read more

Mark came out this morning to check out the gas I smelled in the laundry room. I appreciate that he was wearing a mask and had a very nice demeanor from the start. And even though he couldn't smell it, he looked carefully for the leak (my nose is extra sensitive). He found the problem in the line to hook up the dryer to the gas, fixed it, and was on his way, after also tightening the hoses to the washer. I really appreciated the professionalism and manners. I would definitely call again with a plumbing problem. (I also liked that he called when he was on his way so I had time to put away the .) read more

I Love to support small businesses! The owner Isaac answered my call at 7 am ! Sent all my info via text & set a time !!! Hacked the problem quickly! Super professional!! Reasonably priced!! read more

We had trouble with our laundry and kitchen drain. So we called Isaac & Sons Plumbing. We have used them in the past for a bathroom shower remodel, and was happy with the work. Within a few days Issac and his son came out, checked the drain, and found what looked like a blade to a snake that was left by another company in the past. Since this was going to be a problem, he came up with a workaround and re-routed the two drains back to the main drain. I also needed a new main shutoff valve, and had him do that work too. He finished all the work in a timely manner. When he was finished, all the work area looked like nothing was disturbed. We would highly recommend. read more

Discovered a main line leak the day after Thanksgiving. Called Isaac just to see if they could come give me a quote. A couple hours later I had a quote that I felt was more than fair. Spoke with Isaac for a bit and was impressed with the level of professionalism and attention to detail. The following morning, they showed up at the promised start time and proceeded with the job. I had plans to be off the property so I left them to their work. Prior to burying the newly laid pipes, Isaac sent me a video showing the worksite. Not something I asked for but it was a nice touch. When they left the site you couldn't tell that anyone had been digging around. Very clean work! Its good to know there are still contractors that take pride in their work. Look no further if you need plumbing services. Pros: punctual, fair, quality work, courteous, professional, no language barriers Cons: Absolutely none! read more

I had a plumbing emergency today on a Sunday and Isaac was here in 30 minutes to fix it. He did a great job and was reasonably priced. He was honest and was a very nice person. I also was planning on replacing my water heater so I'm having him do that for me as well. read more

Five stars! Met Isaac Sr. today when looking for a local alternative to our usual plumbing company who couldn't get to us till tomorrow. Isaac gave me a 2 hour window but was polite to text 45 mins. into that time frame to apologize that a job was slowing down the time estimate so I would be forewarned. Very considerate. When he arrived (not too far off the original time frame) he was personable, friendly and professional. It turned out we need to buy a new kitchen faucet fixture but rather than just disappear and charge us the minimum, he got everything ready so my husband could purchase and install a new faucet simply. Then he charged less than half of the minimum he had quoted! I now have Isaac & Sons as my #1 Plumbing resource in my home maintenance index!! read more

In preparation for my drywall installation, I had to run an ice maker line and being the "Genius" I am, I drilled a 1/2 inch hole right through my brand new PEX plumbing. I started contacting local plumbers to get an urgent quote and repair. I received quotes in the $400.00 range without even seeing the job from a few LARGE CORP PLUMBERS along with an end of day or tomorrow ETA. Then I contacted Isaac & Sons. Not only were they the first to ask for pictures of the job, they quoated me a great price based on the work needed and were also able to make my job a priority based on my predicament !!!! From the time I called to job completion was 90 minutes and I can't say enough about how happy I am.. These guys were prompt, professional, friendly, honest and will now be my Go To guys for all my future jobs.. Thank you again guys !!!!!!! read more

Responsive, communicative, reasonably priced. They knew what they were doing and did it well.

After another company came out and said they wouldn't work on my water heater, I called Isaac & sons, should have been my first call! He was super professional, on time, and I didn't pay a penny over the quote, which he gave me over the phone. I would use this company again anytime. read more

Excellent service and price. We had a broken pipe underground. A river of water was underneath. Our house smelled like sewer. There is also a lot of bugs. The worker still went under there and fixed our pipe. I feel bad because of the mess and bugs down there. It didnt take long. They came and did it in a good timely matter. They work hard and they're friendly people. They also have referrals for other home work. We are satisified with the work and service. read more

Isaac & Sons is hands down the goto for any plumbing needs. We had a previous contractor out and that didn't go so well, we needed someone to come out asap. I called Isaac and with in 35 minutes he had 2 drivers at my house. They completed the job, cleaned up any mess that was made (very little as they clean as they go), and was out the door with in an Hr or less. We will be calling them for any future needs and will be recommending them to all our friends, families, and neighbors. Thank you for all your help today, it's very much appreciated! read more

Jeff was awesome, great guy to ask for honest and quality service. They are not out to take you for your money. I had one guy come out to quote me for $225 for NOTHING, trying to convince me to accept the quote because it was a low cost and he had the parts on hand to fix now. Jeff came out and showed me what the issue was at hand and just did some minor adjusting. He told me that should fix the problem and if it doesnt then he would come out to replace the needed parts at only $99 which is less than half the cost the other guy was quoting. I would definetly recommend these guys to everyone. Thanks Jeff. - The Joint... The Chiropractic Place in La Verne read more

This post is long overdue for sure. My grandmothers house in Ontario was having major plumbing issues. The main line was clogged and the pipe was broken in a few spots and needed to be dug out, repaired and patched and upgraded a bit. I'm not a plumber and could not help my grandmother. What I was able to do is help her to not get ripped off and make sure she was taken care of. I reached out to a few friends and both gave me Isaacs number. He showed up within a day or so and was able to figure out what was going on. Not only did he show up earlier than the time he said he'd be there, but he had his shirt tucked in looked professional. He didn't have the lowest price, but he also didn't try to upgrade us and sell us on things we did not need. He did exactly what he said he was gonna do, he had all the tools on him to get the job done. It was a 2 day project. We were really impressed with his experience, integrity and his professionalism. Isaac is very likable and was friendly with grandma and took care of her. I didn't have to worry. Later on she hired him for a few smaller projects . I would hire this company again and or refer them to anyone who is looking for someone who knows what they're doing. Happy Customer Sousa Family read more

Isaac came and fixed the problem quickly and at a good price. Great guy and very knowledgeable.

We were in a pinch with a house guest about to arrive and a low flushing/no flushing toilet. Isaac & Sons was recommended to us by our contractor. We had picked out a new toilet and left it at Lowe's to be picked up. Isaac and his son picked up the toilet and met me at our home ready to install it. They were quick, efficient, friendly and professional. They came in and removed and hauled away the old toilet and installed the new one. They got the job done and cleaned up after themselves leaving no evidence of the earlier disaster toilet behind. Isaac was friendly and explained exactly what he was doing while he was doing it. The price quoted was the price charged. Him and his son were in and out and left us with a flushing toilet once again. We highly recommend Isaac and his company. We will definitely be using them in the future as our plumbers of choice. read more

I had a water leak outside my house. Water was pouring out of one of the seams from my concrete walkway in front of my house. I couldn't leave the water running more than 1/2 hour or else my driveway would of started to flood and then it'll go down the street. I called Isaac early morning and made an appointment same day late morning. My biggest concern was to get running water to my house because I had to keep turning on/off the main in order to use water. Matt showed up and I expressed my concerns to him. He installed a shutoff valve for the sprinkler system. That isolated the issue to the sprinkler system and the water leak stopped. Now I can use water inside the house without having to turn on/off the main. He also gave me ideals on how to tackle my sprinkler system leak. Matt was an easy guy to talk to and work with. read more

Amazing customer service very friendly Isaac and Mark Thank you so much will recommend you for sure

This will be another five-star review for Isaac & Sons. I had a persistent drip from a bathroom vanity faucet, which had seen 32 years of service and was wasting water in a time when California can't spare a drop. Isaac and young Isaac came and diagnosed, told me specs on replacement faucets to buy, and said they'd return the following morning. This morning they switched out old faucets for new - it was hard work - and also changed out an outside ball valve that badly needed it. Isaac said I didn't need the second angle stop changed out - that it was good - and I didn't need a showerhead changed out - it was good too. Icing on the cake? They installed a new fitting on a hose outside that had been squirting all over when in use. Cost was very reasonable. And they're nice: Ethical, responsive, and very pleasant to talk with. You need a plumber? Call them! read more

I scheduled w this company a week in advance. Got a quote over the phone. They arrived for their appt early which was great. The team was professional, fast and efficient. They did a great job and cleaned up their mess. They educated me on the problems I had and how it was fixed. If you need a plumber that alone sucks but these guys did a great job and I'm definitely satisfied! That's hard to get w tradesmen. read more

A bit late in writing this review but had to do it! Had a Main leak in my drive way and had to emergently look for a plumber, this happened a few months back during the crazy rain season. After getting a few estimates Isaac came by and patiently explained the problem and explained in detail how he could fix the leak by rerouting my main and not having to break all my cement in the process! Saved me a ton of money and put me at ease due to his patience and explanation of the process.. highly recommend, it's so difficult to find good people that are reliable and honest. Work was done well and completed on time! Will most definitely use again if I ever need plumbing services! read more

This review is being written for my parents. Over the last few months they have had a few plumbing issues and having had bad experiences in the past with plumbers, either not doing a good job or charging an arm and a leg, we have tried to remedy the problems on our own. I was able to fix a few of their issues, but after a certain point youtube videos can only take you so far. I finally convinced my dad to get a plumber and after looking on yelp decided on Isaac and Sons because of all of the 5 star reviews. Let me tell you, it was, and continues to be a great experience. Issac has serviced my parents home on two separate occasions, has done an amazing job with reasonable prices, is always prompt (usually next day service), and will explain any questions that you have. Isaac has fixed our bathroom sink, installed a new garbage disposal, and replaced an old hot water valve. To truly state how impressive Isaac has been, only look to my mother, who is very cautious to people that come to work on our home, and even she has taken a liking to him. My dad says he is never going to go to another plumber as long as Isaac is around. read more

Isaac & Sons is a good company owned and operated by a decent and honest man. I am generally pretty wary of service taking advantage of me because I'm both a widow and not knowledgeable about these types of things. However,my experience with this company was very positive and completely different from what I have experienced in the past. Isaac provided outstanding service on a big job that involved multiple runs of his camera to the sewer, hydrojetting roots, lots of broken pipe and ultimately installing a new liner from the front of my house to the main sewer line. He kept me informed about what was going on throughout every step of this job. I don't think he could have been more thorough. I really appreciated the time and effort that was put into this project. I highly recommend this professional and courteous company who put the customer first. I am so thankful for Isaac and the rest of his crew!! read more