Residential & Commercial Plumber in Oakland, CA

Are you experiencing problems with your plumbing, sewer, or hot water system? Trust an experienced local contractor to handle the problem. Harry Clark Plumbing has over 46 years of experience handling a variety of HVAC, plumbing, and sewer repair and service issues within the California Bay Area.

Sewer Repair

You may not always consider your plumbing or sewer needs, but you always want to think about your sewer before you need to. Schedule your regular sewer inspection and service with Harry Clark Plumbing If your property requires plumbing or sewer repairs, we can handle those too! Many local sewer repairs require replacement of the pipes: this can be a hassle, but we have the skills and experience to conduct your repairs with minimal disruption to your property. We install trenchless sewers that are easier to maintain and operate more efficiently, with less chance of failure over the life of the system.

Heat Pump Water Heaters

Tank/Tankless Water Heater

Drain Cleaning Stoppages
Hydro Jetting

Plumbing Repair & Service

Toilet Repairs

Gas Line Repairs

Trenchless Sewer
Replacement Sump Pump

Hot & Cold Water Repiping

Plumbing Tips

5 Common Plumbing Problems

Plumbing Tips

Knowing When To Repipe Your Home

Plumbing Priorities Before Your Trips

Serving Oakland since 1946, any plumbing needs our expert plumbers have you covered.

Harry Clark Plumbing is here to take the pain out of your plumbing needs. We provide prompt and courteous residential and commercial plumbing services to the Oakland and Berkeley, CA area and beyond. Our technicians are experienced and ready to handle any situation that arises, and we only use quality products like domestic made pipe and fittings.

It was during a big storm and Harry Clark was slammed. A huge tree had fallen and broken a water pipe and was flooding underneath the house. Electricity was out, tree was covering the valve to turn off water and East Bay Mud evaluated and could do nothing until the tree was removed. This could be days. Bradley managed to gather a crew with a generator and pump and was at the site within 30 minutes of the call. The guy pumped all the water out from under the house and with unbelievable ingenuity managed to get access to the water source and identify the broken pipe and clamped it down stopping all the water from rushing under house. It was a Superman moment!!! Thank you Harry Clark for responding to a 911 situation with all that was going on and being better than anyone expected!!!

I have had great results with Harry Clark Plumbing. They did such a great job from the 2000's until present day (yesterday- my old sump pump finally gave out) The sump pump well they installed has gotten compliments from drainage consultant to electrician working in that area of the crawl space- anyone who happens to be working in that area of my house has commented that "they did a very nice job on that pump well". Yes, it's true I'm sump pump proud. Thank you Harry Clark! On time, responsive, communicative, dependable, great work!

The entire company from the people that helped schedule the jobs to the service professionals that came out to our home were fantastic. We had a 100+ year old home in Oakland that had a gas line that was leaking in the kitchen and they were able to immediately identify the leak and replace the valve. They also hooked up our new gas range and did all the appropriate tests to confirm proper function and no additional gas leaks in the home. Separately we had them come out to install a new toilet in our downstairs half bath. Within an hour the new toilet was installed and running better than we could have hoped saving us water. Fast, efficient and fair priced for each service. Communication was outstanding We could not be happier and highly recommend.

Positive: Professionalism, Quality, Responsiveness

I had to have lateral sewer system replaced as it was shot. Everyone from office staff, workers on site, and owner was very professional, efficient, neat and friendly. While that was happening the supervisor on the job noticed a constant flow of water from the house and notified me, and Harry Clark got a plumber out right away and got that fixed too! Thank you to everyone at Harry Clark!

Services: Outdoor plumbing system repair, Toilet repair

Positive: Professionalism, Punctuality, Quality, Responsiveness, Value

This review is long overdue-- for a number of years I have used Harry Clark for any plumbing or heating problem in my home or four plex. They communicate clearly, arrive when promised, work with my or tenant's schedules, fix the problem and give information about cause and prevention. Their pricing is fair and reasonable. The phones are always answered during business hours. After using different plumbers from time to time, it's come down to this one company I can depend on. If you are looking for one company to handle plumbing and heating issues, I recommend Harry Clark.