Dimond Plumbing & Heating
Company Overview
Dimond Plumbing & Heating Co. is dedicated to offering high-quality services at fair prices, focusing on value and trustworthiness with each service call.
Our offerings encompass:
Water Heating Solutions
Leak Fixing
Furnace Repair
Clogged Drains
Licensed Plumber
Full-Service Plumbing
Founded in 1910, Dimond Plumbing & Heating Co. emerged as families and businesses relocated to the East Bay after the 1906 earthquake.
The ""Dimond District"" in Oakland became our home, and for many years, we operated at the intersection of MacArthur Blvd. and Coolidge Ave.
In the early 1900s, we completed extensive plumbing work for both the Alameda County Building and the University of California - Berkeley.
Alongside our commercial and industrial projects, Dimond Plumbing & Heating Co. built a reputation for quality and integrity among Oakland residents and the broader East Bay community.
A significant portion of our clientele today consists of the children and grandchildren of our first customers.
At the age of 17, I embarked on my plumbing career by digging ditches.
As I progressed in the plumbing industry, I realized that no matter how much I learn, there is always more to discover.
With changes in codes, advancements in technology, and the vast array of products available, it’s impossible to know everything.
The greatest value I can provide to a customer is my commitment to delivering quality work at a fair price.
That’s the same standard I encourage my son to uphold.
Business Services
- Bathtub installation
- Bathtub repair
- Drain installation
- Drain repair
- Faucet installation
- Faucet repair
- Garbage disposal installation
- Garbage disposal repair
- Gas line installation
- Gas line repair
- Hot water recirculation pump installation
- Hot water recirculation pump repair
- HVAC system repair
- HVAC system maintenance
- Plumbing inspection
- Plumbing installation or replacement
- Plumbing repair
- Sewer installation
- Sewer repair
- Shower installation
- Shower repair
- Sink installation
- Sink repair
- Sump pump installation
- Sump pump repair
- Toilet installation
- Toilet repair
- Water heater installation
- Water heater repair
- Water pipe installation
- Water pipe repair
Business Location & Hours
Mon: | 7:00 AM - 6:00 PM |
Tue: | 7:00 AM - 6:00 PM |
Wed: | 7:00 AM - 6:00 PM |
Thu: | 7:00 AM - 6:00 PM |
Fri: | 7:00 AM - 6:00 PM |
Sat: | 9:00 AM - 3:00 PM |
Sun: | Closed |
Recommended Customer Reviews

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.

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!

Have been dealing with slow running pipes in upstairs shower and tub ever since the 90s. Consider myself somewhat handy, so devised my own methods to deal with it and the old piping over the years, putting off that the piping probably needs to be changed out. Well last week, my ""maintenance"" remedies no longer worked, and my shower in one room and tub in the other room, would not drain at all. So, after messing with it for years, I decided to call in the pros. I wanted to keep my money in the local economy, so called Dimond Plumbing and Heating. Got a call back from Michael, who explained he was booked for now, but with the info I left him on the phone, he began to chat with me and ask questions about my situation. He ended up giving me his years of experience on my issue, as well tips from being familiar with the houses in the area. After about a 20 minute phone call, he left me with what his best recommendation was to fix my problem! I was blown away! He could not take the job, but basically did, as he told me what he thought needed to be done! What extraordinary customer service! Now here is the kicker: 2 days later, he called me back and left a voicemail asking if I had done what we discussed, and if it worked! Wow! You just don't see that type of service anymore. Since his recommendation DID work, I am sorry that the only ""payment"" he gets from helping me is this rating, but believe me.......if I have any future plumbing or heating issues that I can't tackle, you know who I will be calling! Thanks Michael! You are a class act!

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.

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.

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.

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.

Mike saved me from having to buy a new toilet! Another company had said the physical object in the toilet was irretrievable, and that we'd need to replace it. I called Mike, and before he would even give me a quote on toilet replacement, he said he'd try and come over and get the object out. He came the same day and got it out in, and this is not an exaggeration, 20 seconds. Also, we talked about Schrodinger's cat and he told me a good plumber. Mike is a grade A plumber who also tells jokes and quotes philosophy. There's literally nothing more I could ask for.

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

Mike talked to me on the phone twice, giving me advice for no charge. He was very helpful and friendly