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At Harry Clark Plumbing Inc., we take pride in the work we do. Whether you are replacing your old water heater with a tankless water heater or you need plumbing service and sewer repairs, our team approaches each job with the same attention to detail. From minor repairs and drain cleaning to complete repiping and sump pump installations, each residential and commercial plumbing service that our team offers is always performed to the highest quality, and not only do we ensure that your machinery will function properly, but we also make a promise to our clients across Oakland, Berkeley, Orinda, CA, and the surrounding Bay Area communities that their plumbing service will be matched with friendly customer service and installation services.

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Gerald F

"Excellent Customer Service!"...

Lisa B

Fantastic. Practical, knowledgeable — and reasonably priced! Bradley was here twice today and couldn't have been more helpful.

Jason M

I can't say enough good things about my experience with these folks. My AC mini-split wasn't working so I called Moore Mechanical to fix it as they had installed it. They quoted me $3800 to fix it which chatgpt said was outright criminal. My friend referred me to Harry Clark and they did the job for less that $500. They are efficient, responsive and above all not out to gauge you. Bravo.

David E

One of the few that offers emergency service on the weekend - pricey but well worth it after a major flood from a burst supply line. One of the co-owners came within a few hours and did a follow up on the next business day.

John J

I've been using Harry Clark Plumbing on and off for over 10 years. We have a restaurant on Broadway, which is right up the street from Harry Clark. Our water heater rusted out on us, and we had to shut down on a Friday. For restaurants, that's no bueno! I drove to Harry Clark in the Morning and Brad (one of the owners) was there working. I explained my situation, and he jumped on the project immediately. Our water heater is big and expensive, and is mounted 4 feet up on the wall and into the ceiling. He came over with his dad and had a new one up and running in 5 hours! This was the fastest and cleanest install I've seen. I'm still impressed with how they managed to remove and install a 400# water heater halfway into the ceiling in just 5 hours. I never write reviews, but this deserves a shout-out. It's nice to know we still have businesses that care bout what they do.

Duane A

Too bad I can't give six stars...they are that good. On Mon AM the Harry Clark dispatcher called me in response to my Saturday plea for help via their website. It was a weekend then; so they were closed. But they contacted me first thing that Mon. At 1215 that same Monday, a Harry Clark rep knocked on my door and went off to find out why my hot water heater was no longer heating my water. Took him, maybe, five minutes to find that the computer that controls the heater was malfunctioning ...sending all sorts of error data. The heater needed replacing. I opted to replace it with the same type I already had, but upgraded. I also opted to replace the 24/7 recycle pump with one that would be on only from 7AM to 9PM. That reduced the amount of gas burned during the low usage hours. About two hours later, four Harry Clark trucks and a team of plumbers were removing the old heater and installing the new one and its recycle pump. In about four hours the new hot water heater and pump were up and running. In sum, from when I got the first call that AM until the Harry Clark crew packed up and left me with a heater replacement was about eight hours. In addition to being extraordinarily fast and efficient, they were always communicating with me. Kevin, the job foreman, constantly kept me apprised of what they were doing and what came next. These guys are good...highly recommend them. NOTE: they don't do weekends; so they're not good for emergency repairs over the weekends.