Welcome!

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About us

Family owned and operated since 1928, Cox Plumbing Co. Inc. has been offering professional plumbing installation and plumbing repair services throughout the greater Waukesha County area. With over eight decades as Waukesha plumbers, we have established a reputation for prompt service, courteous, quality work, and guaranteed customer satisfaction.

In addition, we are pros when it comes to water heater installation and water softener repairs. We love to see everything working correctly, but we are about so much more than just efficiency; Cox Plumbing Co. Inc. also offers kitchen and bath remodeling to add beauty to your home.

Our licensed, insured, professional, and friendly plumbers in Waukesha, WI can provide solutions for all of your plumbing needs. Whether your problem is big, small, simple, or complex, Cox Plumbing is here with the fix. Call us day or night with all your plumbing needs!

We are ready to meet all your
plumbing needs

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What we do

Cox Plumbing Co. Inc. is focused on 100% customer satisfaction. We are family owned and operated and therefore make sure to work on each project as if we were working on it for our family members. Our licensed, insured, professional, and friendly plumbers can provide solutions for all of your plumbing needs. We offer service in Waukesha County and surrounding areas.

BBB accredited since 2004

Quick & reliable repair for your
plumbing emergency

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  • This company is Awesome! We have used them for numerous installs and repairs for the past couple of years and have never been disappointed. We have had them install two new toilets, grab bars in the shower, a new garbage disposer and a new water heater. We have also had them check to see why our basement drain kept backing up and they fixed that problem. This last time we had them back because the new water heater they installed in January 2015 stopped working last month. No hot water! They made four trips to our house to try to fix the problem and it would work for a day or two, or last time a week, but they finally decided to order us a new one from the manufacturer and installed it yesterday. All of this was at no charge to us, no labor, parts, nothing! The owner, Jeff, even came on a Friday afternoon to get a new part installed. He has been great, always available through text or phone. He also called today to make sure the install went OK and that we weren’t having any problems. Can’t blame Cox for the water heater problems, we apparently got a deficient heater from Rheem. Everyone there is pleasant and helpful and willing to do whatever they can to help. You can’t go wrong with these guys!
  • Thanks to the person who answered the phone so cheerily in the morning and to the technicians- Kyle and Derek- for their expertise in resolving my broken pipe issue.
  • Tom was wonderful! Very knowledgeable. Can’t believe all the work was done in under 3 hours. Equally pleasantly surprised at the final bill! Thank you!
  • Ray solved my problem in 1 minute – we’re happy! Ray explained everything! Keep him! He is a very good example of Cox’s service – many thanks!
  • We have been your customers for a long time, and with people like Jeff working for you – you can bet we will continue to call Cox Plumbing.
  • Jeff from Cox came out on a Saturday to help unplug a drain that was terribly clogged in our house (the MAIN pipe, going to the street). He was quick, crazy quick and very professional. He let us stand by and watch without making us feel like we were in the way and he also didn’t take but about 5 minutes to find out exactly where the problem was coming from.
  • I just wanted to send a short message to express my appreciation for the courteous manner in which John handled my job on 3/13 at Forest Hill Ct. It seems so often that contractors have no problem leaving behind a mess when their job is done for the homeowner to clean up. John was as careful as could be expected and wiped up as much of the leaking water as he could. He was also very explicit in what he needed me to do. He was even very patient with an unforeseen issue while trying to get my old water heater out the door. We have always called Cox for our plumbing needs and it’s so nice to know that there are still companies that actually know the meaning of “customer service”.
  • We have used Cox Plumbing a few times in the past . We have always had great service – friendly and quality service. We made an appointment a few weeks ago for a bathtub leak. Unfortunately, we had to cancel due to financial hardship at this time. But the leak worsened over the next week so we called back to reschedule. As in the past, the service man from Cox Plumbing, Tom, was outstanding. He was friendly, professional, and far exceeded our expectations. Upon learning some of the parts that needed replacing were from Kohler and should have help up longer than they did, he returned to the store and took the initiative to contact Kohler on our behalf. Because of his efforts, Kohler agreed to send replacement parts, free of charge. Even more impressive was the care, concern and costumer service of the owner. When we originally canceled, he contacted us to assure us that they were a family owned business and would be willing to work out a payment plan to help us if necessary. When he learned of the repairs we had done, he gave us a discount on our overall bill. It’s hard to express in words how appreciative we are of your entire company. From the top down, your employees are committed to customer service and quality work. Not only will we continue to use your business, but we will be sure to recommend you to each and every one of our friends, coworkers, and family. Thank you for your commitment to your customers. Sadly, this seems to be a lost trait in many businesses these days and we were pleasantly surprised to experience your exceptional service.
  • These folks are amazing. Professional, courteous, knowledgeable, and always just as concerned about a plumbing issue as we are. If you want something done right the first time by someone you’d happy to have in your home or business (plumbing issue aside), these are the people to call!
  • Tom was wonderful! Very knowledgeable. Can’t believe all the work was done in under 3 hours. Equally pleasantly surprised at the final bill! Thank you!
  • Loved that I was given 2 options for the repair of my burst pipe. One  a little more expensive and one less expensive. Both were less than I anticipated.  Hope I never have to call them again, but if I do I’m glad that I have a company that I can trust!
  • Jeff from Cox came out on a Saturday to help unplug a drain that was terribly clogged in our house (the MAIN pipe, going to the street). He was quick, crazy quick and very professional. He let us stand by and watch without making us feel like we were in the way and he also didn’t take but about 5 minutes to find out exactly where the problem was coming from.

Licensed technicians will try their best to
exceed your expectations