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    Diamond House Plumbing

    4.2 (63 reviews)
    Open Open 24 hours

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    Tank full above output pipe that leads to leach field, only 30 days after partial repair.

    DO NOT RECOMMEND We hired Diamond House Plumbing located in Riverside in Aug 2023 to install a leach field for our septic system, and it has never worked properly since day one. Despite multiple repair attempts, the system continues to fail, with water returning to the tank instead of reaching the leach field. When I requested proof that the system was functioning (such as a visual inspection) one of the owners Joshua Miller, refused. Instead of standing by his work, he denied responsibility and ignored our concerns. I filed a bond claim due to their failure to provide a working system, but the company falsely claimed the job was complete-even though it wasn't. The bond adjuster confirmed they were required to provide a two year warranty, yet Diamond House Plumbing failed to do so. If you are considering this company and their finance company Foundation Finance for a major plumbing job, beware. In our experience, they do not honor their obligations, avoid accountability, and refuse to provide proof ad will falsely proof of proper repairs. I would never recommend this company to anyone looking for a reliable and ethical plumbing service.

    The ugly water filtration system that isn't even plugged in
    Teresa P.

    We had a burst pipe in our backyard while we were out of town. Josh Owner of Diamond House plumbing came out and said, that we needed to repipe the entire inside and outside of our home. Otherwise he could fix the pipe but the next weak pipe would burst down the road. I asked how much this would cost. He quoted me $38,925.00 I asked if they had financing, because we couldn't afford to do it otherwise. He asked if we could pay 50% up front and I again said no. Without finance we could only afford to fix the one pipe. He took my information for to see if I qualified for a loan. I explained that my husband had some health issues and missed some payments because of it. Even though he was all caught up his credit suffered a good score. I said that my credit was pretty good, however my husband was the one bringing in the income. Josh placed me on a long hold and would he came back on the line he told me I had been approved for 100% of the loan with monthly payments of $570.00. The loan documents were sent to me and I signed everything. I told Josh that we were getting on a cruise ship the next day and that I would be unreachable for one week. I left him both our adult children's phone number in the event they needed to speak to anyone. ( they never tried to call either of our adult Children). About 3 days into our cruise I got an email that they needed to add my husband to the loan, because he was the one who made the money. I told the receptionist that my phone wouldn't be able to call out until the next day when I got to port. I phone them the next day and she said they would only do the loan if my husband was added. I again explained that his credit was less then good and she said that okay they just needed him on there for proof of income. We never heard anything from them for the rest of the trip, so we just assumed everything was good When we got home I found our very clean house now covered in a very thick Sheetrock dust and our air conditioner no longer would come on. Two days later Josh came to our house and said that we weren't approved for the loan. They had continued working knowing there wasn't a loan in place even though I told Josh before they ever started the only way we could do this was if we had 100% financing. I wasn't happy that they hadn't waited to do the work until they could reach me. Our house has been left in shambles holes everywhere which Josh told me before they started in his exact words they would take care of all the drywall. I have exposed copper pipes running up the back side of my house. They charged over $4k for an ugly exposed water filtration system that's not even plugged in. When I asked Josh about this, he said they could run an Extention cord. We have zero water now to our front lawn and mature ficus tress my gardeners said they disconnected those lines when repiping. Josh said every pipe would be replaced inside and out. Now my lawn and tress are going to die. The shattered a double sink marble vanity several outlets no longer work in our house including some bathrooms. Josh has been trying to strong arm us for medians payment. I again explained they should have done the job until they could have spoken to me about not having a loan. He said they will not fix any of the damage done to our house until they have 50% we have tried to get a credit line, but are having trouble. We paid they $2090.00 dollars this month that was all that we could swing. $90 was a credit card surcharge which is illegal in California. We are planning of making payments each month until we can find a loan. We feel very tricked, conned, scammed into doing a job that we told them up front we couldn't afford with lout getting finance. They should have stopped work immediately when the loan didn't go through. That in itself should be illegal. On top of the stress of my husband's illness we now have this financial hardship added to our stress. That should have never happened. Don't trust this company they are shady.

    Lisa S.

    Got a Groupon offer for $37 for $100 of services to use with Diamond House Plumbing. My toilet flapper was leaking water and the flushmaster arm seemed to have a hard time filling up the toilet. I didn't know how to buy the parts so I thought I'd use this Groupon which was the perfect option. I called Diamond House set up an appointment, which went well, they were on time, and did the inspection on various things in our house, that took 15 minutes. Then they went out to their truck to make the estimate which took 30 minutes. At this point we called the company to ask what they were doing that was taking so long. So they came back in and told us that we had 2 Options: 1. Approximately $600 to replace the whole toilet. 2. Approximately $500 for parts and labor. Which we could not afford either one of those offers so we declined. That very next weekend it just so happened that my brother in law was in town. He looked at the toilet and saw that the flapper was warped and the flushmaster needed to be replaced. So he went to Home Depot picked up the parts that was less than $20 and took him 15 minutes to fix. My brother in law is not a plumber he is a cable man haha but as you can see this company will rip you off.

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    5 months ago

    These guys do it all, very good job installing septic system and fixing some leaks inside home. very happy with services received

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    1 year ago

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    Thanks Tom. Appreciate your business.

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    4 years ago

    Professional staff explained all details and left everything clean. Very satisfied with service.

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    4 years ago

    Came out quickly to replace garbage disposal. Friendly and efficient technician. I was happy with his work.

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    Page 1 of 2

    Ask the Community - Diamond House Plumbing

    Review Highlights - Diamond House Plumbing

    Daniel and Andrew helped me rid the roots out of my drains and pump my septic system.

    Mentioned in 4 reviews

    Read more highlights

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    Building Five Septic - Building 5 Septic

    Building Five Septic

    (38 reviews)

    Marco was excellent! He responded quickly, was very professional, and got the job done fast and…read moreright the first time. It's hard to find someone this reliable and skilled -- I'm very happy with his work and would highly recommend him to anyone who needs a good plumber.

    It's such a blessing to eventually find them. It had taken me one month to get quotes from plumbers…read moreand figure out the root problems since our toilets backed up. When I was sure that we had to first replace the whole septic system, I got quotes from many companies and building 5 offered the most competitive price. I was told by some company that cheap means less quality. Okay, please use your own judgement. I can only say they are not greedy company, or maybe they use fewer workers with less time but very efficient work. Maybe no long warranty is also a factor. So it depends on what you want. And during the work, they were very transparent with each process and helped me take pictures of every step they did. Josh and Alan were very patient in answering all my questions. They even change the main sewer line connected to the tank which is not in the scope of work. And the toilet already started to flow. Josh is super honest with the price, he took down the part that they didn't do at the end. They not only saved our pocket but also the time. They did a wonderful job within a day with cheapest price which some company has to finish in a week but charge triple. They truly care not just for the money. Thank you for everything. A lot of blessings for your business.

    Diamond House Plumbing - plumbing - Updated June 2026

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