What Plumbing
Company Overview
At WHAT Plumbing, located in Gilbert, AZ, we are your reliable, expert plumbing service focusing on water heater installation, repair, upkeep, and water treatment options. Serving Gilbert and all of Maricopa County, our licensed, bonded, and insured plumbing experts guarantee that your water heater and treatment requirements are fulfilled with the highest standards of expertise.
We take pride in delivering high-quality craftsmanship and meticulous attention to detail, whether you require a new water heater installation, repairs, or routine maintenance. Equipped with cutting-edge tools and technology, our team delivers efficient, durable solutions. By working only with leading water heater brands, we guarantee that your investment will stand the test of time.
We also offer expertise in whole-house water softener systems, ensuring you have access to clean, healthy water throughout your residence. As a locally owned, customer-centric business, WHAT Plumbing emphasizes transparency, dependability, and customer satisfaction. You can rely on us for reasonable pricing and quick, trustworthy service—whether it’s an emergency water heater situation or routine upkeep.
Are you ready for reliable plumbing services? Reach out to WHAT Plumbing today for exceptional water heater services, expert water treatment solutions, and plumbing you can count on. Why wait?
Trevor and Dillon, with more than 10 years of combined plumbing expertise, are the proud founders and owners of WHAT Plumbing. Their shared vision is straightforward: to offer fair pricing, high-quality workmanship, and comprehensive plumbing services to Gilbert, AZ, and all of Maricopa County.
With a genuine passion for plumbing and a focus on customer satisfaction, Trevor and Dillon are dedicated to their craft. They are actively involved in every facet of the business, from managing projects to executing expert repairs and installations. Their goal is to deliver dependable, cost-effective plumbing solutions while maintaining high quality.
Dedicated to transparent pricing and exceptional service, Trevor and Dillon work to cultivate lasting relationships with their clients. When they’re not working, they enjoy spending time with their families, exploring the outdoors, and giving back to the community.
Business Services
- Bathtub repair
- Drain installation
- Drain repair
- Faucet installation
- Faucet repair
- Garbage disposal installation
- Gas line installation
- Gas line repair
- Hot water recirculation pump installation
- Hot water recirculation pump repair
- Plumbing inspection
- Plumbing installation or replacement
- Plumbing repair
- Sewer installation
- Shower installation
- Shower repair
- Sink repair
- Toilet installation
- Toilet repair
- Water heater installation
- Water heater repair
- Water pipe installation
- Water pipe repair
- Water purification system cleaning and maintenance
- Water purification system installation
- Salt delivery
Business Location & Hours
| Mon: | Open 24 hours |
| Tue: | Open 24 hours |
| Wed: | Open 24 hours |
| Thu: | Open 24 hours |
| Fri: | Open 24 hours |
| Sat: | Open 24 hours |
| Sun: | Open 24 hours |
Recommended Customer Reviews
Joseph K.Great company! They installed a new gas hot water heater and recirc pump for us. Their prices are better than the competition, Dillon was friendly, knowledgeable and he did a professional job...what more can you ask for?
Jim G.Contracted What Plumbing to rough in pressure and drain (a large job) for a full kitchen remodel in my 95-year-old historic home. We discussed all aspects of the job before hand so that we understood each other and managed expectations of potential risk for scope creep (common when tackling very old plumbing). Risk was realized on the drain side beyond the bathroom that involved additional work in the crawlspace under the house. These guys handled all the work with skill and grace. The entire bill to include the unplanned work was very fair. I recommend What Plumbing for challenging remodels.
Great communication. Responded quickly via chat to my request for a new hot water tank and some kitchen plumbing for a garbage disposal. Provided a price that was a reasonable value. They scheduled a time to stop by the next day and came when they said they would. Really appreciated that the final price was the same that they quoted. Felt I could trust both they guys that came out and did the work. I would use them again for sure.
Thanks!
Jared S.We recently had a 6 year old water heater break unexpectedly (one of the internal heating elements popped). We called Parker and Sons initially and they tried to rip us off so I went on Yelp and requested a few quotes. What Plumbing responded quickly and was professional but they were not really forthcoming with a quote. The water heater broke on the Saturday before Memorial Day and What Plumbing said they couldn't come out to my house until Monday to give a quote. Over text, they provided a general range but didn't give any details as far as what brand of water heater would be installed. I wanted to make sure it wasn't a crappy brand or that they weren't just going to go to Home Depot and pick one up. Plus, if we waited until Monday and we didn't like their quote, it would have only delayed the process. We wound up going with a different company.
What Plumbing did a great job replacing our water heater. They responded quickly and replaced our water heater fast for a great price. We sent them a message late the night before and they were out to our house early the next day. They were professional and informative. I highly recommend them and would absolutely use them for again plumbing needs. We are very happy with their service.
Jackie W.Great job repiping our house. From determining the cause of the leak to repiping. These guys were efficient, respectful of our time and space, clean and skilled. They helped make a bad thing not so bad. Great experience from start to finish.
Great company. Showed up on time, did good work, prices were reasonable. apparently I need 85 characters to give a review.
What plumbing was great. They were responsive. They were professional. They got me scheduled immediately and Dylan the tech showed great customer service. They got my job done in under the amount of time they thought they would, and their pricing was the best from all of their competitors.
Pickup new water heater, install it, dispose of old water heater.
They did the job quickly & accurately. I will hire them again.
Steven V.Since my water heater was almost 9 years old, I knew I was on borrowed time and it would eventually leak. Today was the day that it failed. I began my search for a company that would perform same-day service at a fair price. Trevor reached out to me, asked for a few pictures, and provided a quote for a full replacement. The price was very reasonable compared to quotes I received from other companies. I was able to schedule service in the afternoon on the same day. Dillon and Trevor arrived promptly, explained the work they were going to perform, and recommended the addition of a water heater expansion tank. They did great work, and I have a working water heater again. They provided great customer service, promptly, and at a fair price. I would definitely hire them again for all my plumbing needs.

























