This was the first time EBMUD required homeowners personally to find and pay for a Certified Backflow Tester, they sent a list to choose from. I checked the reviews on each company and Diamond Plumbing & Heating had the highest and most positive ratings so I gave them a call. A absolutely wonderful man named Mike set up an appointment with me and came out and inspected my meter which passed with flying colors. He was very friendly and informative. Real nice guy and the cost of his service was very fair. This is something that has to be done yearly and since EBMUD passed the burden to the homeowners I definitely will always call Mike at Diamond Plumbing, he is a person you can trust to do the job right! read more

I've had Mike come out to do two different jobs in the last year or so. He does excellent work and is super friendly and priced fairly.

Can I give 6 stars? Wow. HVAC guy with the mostess! For any and all of your HVAC needs, Mike is your guy. I have never before encountered a service professional so knowledgable, so dedicated, so helpful. He is responsive, and explains things well. He answers any and all questions. He's not about taking your money. He's about helping you solve your problems. My husband and I have spent countless hours on the phone asking questions (my husband is fairly handy, but a bit lacking in the HVAC department). Mike walked us through fixing our old water heater. When we replaced our old water heater with a hand-me-down water heater from a friend, the hand-me-down eventually stopped working. What did we do? Call Mike! We feel confident we are buying the best heat pump water heater for our needs and our budget, with Mike's help. read more

We needed a new faucet installed and selected Mike at Dimond Plumbing to do the work. He was very knowledgeable, willing to accommodate our schedule, and punctual. He did the work in about an hour and a quarter and made many useful observations about our layout and several useful suggestions for future improvements. He did this in addition to the work required. He left the area where he worked better than he found it. We got an excellent return on our spending with this transaction. My wife and I highly recommend Mike and Dimond Plumbing. read more

Dimond Plumbing & Heating - Our new faucet - Plumbing Near Me - San Leandro, California

Mike has done numerous projects for us over the years. He is honest, capable, and reliable. I'm always happy to recommend him.

Mike is an excellent plumber and willing to explain the issue to a newbie like me. He did a check of all the parts where issue might happen and show me where to look for problem in the future. read more

They are amazing! They do great work and don't try to gouge you! Honest and professional and friendly! I recommend them whole heartedly.

Mike is the absolute best. He is communicative, so nice, and I always know I'm getting a fair price for the work he does. I was lucky enough to have found him when I was renting - and now that I have a home of my own, he's my go-to plumber. He's fixed drains, he's replaced my water heater, he's successfully troubleshot a complicated loose faucet, he's replaced my garbage disposal and all the old piping related to my kitchen sink issues. To top it off, he truly just is a great human, too. Hands down, hire Dimond if you have any plumbing needs. read more

I'm proud to say that I have found my and your forever plumber. We never have to search again, to feel out someone who is skilled, reliable, and reasonably priced. Dimond Plumbing is a gift and we dear Yelpers the benefactors. Mike came highly recommended from a friend whose recommendations I take as gospel. I knew that his work would be superb, and somehow he far exceeded my expectations. He called and setup an appointment, was astoundingly punctual and listened diligently to my 3 plumbing problems. I went back to work and in about 30 minutes Mike walked me one by one through each of the issues, explaining and educating in laymen's terms what happened and how I could maintain my plumbing more efficiently/effectively. I love that he took the time to make sure I understood what the problem was and the work he did to correct it. The THREE plumbing issues were shockingly affordable (especially considering that the former plumber tried to tell me that I was going to need to replace my entire pipe system). Mike is honest and effective and takes pride in his craft. I will never call another plumber again. read more

I've had Mike over twice, the first time to install a sink disposal unit and later for a badly clogged kitchen drain. He is very responsive and reasonably priced. The man knows his stuff and is generous with his explanations which I appreciate. Nobody likes having plumbing work done but it's nice to learn a little when you're paying for work. Oh, and I even got a thank you note in the mail! That's class. read more

Everytime I call Dimond for this job or that, I get a technician who is effective, informative, and well-focused. Today it was Angel who did the right thing and got the job done. Dimond Plumbing is my ALWAYS my go-to business read more

We always use this company as Michael is great! We had a problem with our kitchen sink in Dec. Called Michael and he tried to advise us on what we could check to see if it would help. He also gave us the name of another plumber in our area that we might want to try. (This was because he was having some medical issues at the time and knew he would not be able to come out to our home to help us.) When he was back to making home visits, he called us to see if we still needed his services. Although my husband had been able to get the cold water back on in the kitchen, the faucet was still leaking even though he had replaced parts inside. Michael was able to come out the next week and repair the faucet for us. It's been working fine ever since. Michael takes the time to assess the situation and give you all the options available to repair or replace whatever is needed to fix the situation. He takes the time to answer your questions so that you understand what he's saying. A great businessman. We will continue to use his services as long as he is in business. read more

Probably the most important thing about a plumber is that they are responsive and able to fit you in quickly. The second most is that they don't have them come back. I've trusted Mike with a new gas line for my outdoor grill, a toilet repair and multiple water and gas leaks. He always fits me in and has never had to come back. read more

Very courteous on the phone and via text until we scheduled the appointment. Got a polite text on the day of the appointment saying they will be a little delayed and then got hosted completely without any further communication. It was not professional as I had taken time off for this appointment. read more

It's the second time I needed a plumber for my rental, and I called Mike as he was great the last time I used him. This was also a great experience. He was busy as he just came back from a vacation, but he offered to talk directly with my tenants to schedule a time. The shower was not shutting off completely so I think I needed a new valve. He took care of the issue quickly and the cost was reasonable. My tenants called me again asking about water pressure, so I emailed Mike. He responded immediately and offered to work with my tenants to get everything squared away. Great service all around, I highly recommend this guy! read more

Thanks to Dimond Plumbing we now have WONDERFUL water pressure in our shower...after 13 years of very low pressure. We had a list of small jobs- the kitchen faucet pressure was practically non-existent, the garbage disposal was jammed, the faucet handle in the shower was stripped, etc. Everything was fixed and then some! We highly recommend Dimond! read more

Michael provided great service. He was very responsive and addressed all my questions and concerns. Will definitely be recommending him to friends and family and using him for any future needs. read more

Mike came one day to give a quote. He was very honest and even laid out some options for us. We ended up going with Mike to fix our flange. We scheduled an appointment for one day, and Mike called back and said he could do the next day. Sweet! Mike did a great job. We appreciate his work and honesty. Definitely will use Diamond for any other issues that arise in the future. read more

He came out and was honest and let us know a couple plans that would work for our VERY old floor heaters. Helpful, intelligent and just a good dude. Thanks! read more

Super responsive , friendly and affordable. Michael was knowledgeable about the older plumbing in our house and was able to repair with replacement read more

Shawn was super cool and knowledgeable! Very responsive and patient in explaning what the issue was. Highly recommended!

Mike is the owner and operator of a world-class plumbing company. The level of service and competence you get from Dimond Plumbing and Heating is 5/5 stars. Please reach out to Mike for anything plumbing related. read more

We needed earthquake safety valve installed for our gas line. Mike gave a reasonable quote and he was on time to install it. He also fixed the height of the gas line and pointed out a few issues with existing stuff in the gas line. It was great to get his feedback. Overall 5 star experience. read more

Mike and his son did great work for us in 2021 and early 2022 installing a new hot water heater, installing outdoor water valves, and fixing a vibrating shower pipe. My husband says Mike is a miracle worker (and a really nice and honest guy.) We'd love to use his service again but we're not sure Dimond Plumbing is still open. Tried reaching him in September 2022 and no voicemail available. Hope all's well. read more

Highly recommend!!! Shawn called to say he could come earlier. Customer service excellent, Shawn was so friendly, efficient and knew what he was doing, very professional! Hopefully no more plumbing issues but if we do would definitely call them again! Nice to know you have a plumber who is trustworthy and knowledgeable along with sooo nice! read more

Michael came to replace our floor furnace's unregulated pilot with a regulated pilot which PG&E's recommended we do. He was courteous over the phone and was able to schedule a consultation quickly. After he inspected the furnace, he took the time to walk me through all the work that needed to be done and even drew me a diagram of how my floor furnace is setup. Michael was able to schedule the work to be done soon after the consultation. His priority was to make our floor furnace safe. He tested to make sure everything was working before he left. Michael was able to get the work done at a competitive price. He let me know upfront that there was an inspection cost but that it would count toward the final amount. Overall, I would recommend Dimond to get the job done safely and quickly. read more

Our experience with Mike at Dimond Plumbing was excellent. He was straight forward in his appraisal on fixing the reduced flow of hot water to our kitchen sink. His first recommendation was at a lower cost and was based on his experience on how this problem could be approached. My experience has typically had contractors/repair personnel take the more aggressive/expensive approach. In this case Mike was fair in his recommendation and provided a fix that works. I would highly recommend him for your plumbing needs. Sumner W. read more

Our water had been turned off by the guys installing our fridge and...it didn't get turned back on by them! So, after exhausting our options we called Dimond Plumbing ON A SATURDAY AT 8 AM. That's pretty horrible, but we all needed to use the toilet and we needed water...badly. Hadn't showered in a day, no toilet working for day 1/2 etc... Doesn't help that someone took a FAT SH*T in the toilet! Imagine that foul foul foul smell... by Saturday it became THREE FAT SH*Ts by the eating machine known as my little brother... Let's not get started on the horrible horrible fights following said sh*ts........ Mike was here 10 minutes from the call and was super nice and didn't even charge us anything for his laborous attempt at getting our water back on. Turns out that even using the right tools he couldn't get it on because it was frozen, a part of it broken already AND there was cement on it. He made an appointment for us with EBMUD's emergency line. I was left thinking, did this really nice down to earth man just not charge us anything after helping us even being injured (which he was at the time)??? No way. YES WAY. They have my 5 stars. And guess who is going to be our regular plumbing company now? :) read more

I've been a loyal customer of Dimond Plumbing & Heating for the past 12 years, and have always been impressed with Mike's responsiveness, knowledge and experience. His prices are fair and he takes the time to explain the process, what needs to be done and why. He doesn't cut corners because he believes in doing it right the first time, and guarantees his work. I've recommended his services to many of my neighbors. read more

Once upon a time a refrigerator needed replacing... and like any other family struggling during this time of economic depression, we could not afford a fancy new one with a ice and water dispenser like the old one. So we got a second hand fridge to hold us over, but we quickly realized that the line to our old fridge needed to be plugged up so it would stop spewing water. So we turned off the water to the house because we had no stop valve. Late last night we agreed to work on it later and started calling plumbers first thing in the morning. Plumbers, like most skilled tradesmen are defined either by stereotypes of their competitors & colleagues, or by the excellence of their individuality in service. Mike at Dimond Plumbing is absolutely in the second category. A true professional with over 30 years of experience, he remains tapped into the fact that customers are people too. I met Mike today on a Saturday when he was nice enough to come over and help me solve the problem we were having with the leaky refrigerator water line. He shook my hand, came in, and politely solved the problem in under two minutes. Honestly I would have been working on it for at least a few more hours, so to me it was very impressive to watch Mike carry on a casual conversation while replacing some valve parts and tightening everything up. He let me know the best way to run a new line in the future and was kind enough to give me some spare parts. He even helped us turn the water back on. The price was less than any competitor we got a hold of and well worth every penny. I will definitely be Calling Mike again when I need any other plumbing help and I would suggest you do the same. CHAD P.S. Mike if you're reading this, you're awesome! read more

Shawn installed a laundry sink and replaced the water main valve. Great customer service. Very happy with new sink. Thank you so much, will call again definitely. read more

Highly recommend. Friendly, efficient & explains things great. Fixed our shower leak promptly!

I chose Dimond based on Yelp reviews and they definitely deserve 5 stars. They got back to me really quick and did a great job in a swift manner. The guy (forgot his name) gave me the price for replacing my toilet, and quickly called back when he realized that he misquoted (only by $24, it was $384 total), I really appreciate that he was upfront about the cost. When I told him over the phone that I wouldn't be home for the job and that my parents don't speak much English, he offered to send somebody out who spoke Spanish or Thai (neither one would've helped, haha), that was appreciated as well. They were very professional and did a great job. Highly recommended. read more

Outstanding workmanship & professionalism. Mike is extremely knowledgeable, efficient, very polite & nice. Cleaned up after work was done. Highly recommended! --Sandy read more

Dimond came out on a weekend three years ago and installed a new water heater, their prices were competitive and even below those folks who advertise "emergency" replacement. Then on Friday the water heater pilot light went from a gust of air from a vacumn cleaner. They came out on monday and relit the pilot light for no charge, and added a lesson in how to light the pilot light. Great service. read more

Quick to reply to our request for help in fixing our shower drain issue, Friendly and professional. I would recommend Mike for any plumbing issues. Thanks. read more

Mike is a straight shooter! He treats you like he'd treat a friend - doesn't do work he doesn't need to do or that is out of his scope. He was good about communicating and was friendly in person when he was doing the work. He's good about explaining the "why" behind why he needs to do something which really helps you understand the needed work. I would definitely bring him out again if we need it! read more

Mike is an excellent honest plumber that is very knowledgeable. He explains what needs to be done and does the job correctly. He also prompt and someone you can trust. He really a good guy, I feel he will not disappoint you in anyway. read more

Michael came over to fix my clogged bathroom sink. He was very professional, efficient and knowledgeable. It was a pretty bad clog and he explained everything he was doing. He also cleaned up the bathroom after he was finished. I was very impressed with Michael and would not hesitate to use his services again and recommend him to my friends. He also has excellent prices!!!! read more

Reached out to Michael for a quote on help installing a problematic valve on our bidet. He was transparent with the cost and was able to stop by the same day. He drove over and fixed it right away. Great guy, top notch service. Highly recommend. read more