About Us
- 150+ 5 Star Reviews
Cindy N.
Nothing But Professionals
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David Leahy
Co-Owner
David brings a deep knowledge of his craft and a strong commitment to honest, reliable service with over 20 years of experience in the plumbing and water heater industry.
As a founder and co-owner of Nothing But Water Heaters, he has fulfilled a long-time dream of creating a company that prioritizes quality workmanship and treats every customer like family. Frustrated by the number of companies that take advantage of customers, David and his business partner Ronald set out to build a business rooted in integrity, affordability, and community trust. That mission remains at the heart of everything the company does today. Outside of work, David is a proud father of two—one boy and one girl. He enjoys spending his free time outdoors with his kids, whether it’s swimming, hiking, biking, camping, or enjoying a day at the lake.


Ronald Munguia
Co-Owner
With over 20 years of experience in the plumbing and water heater industry, Ronald brings deep expertise and a passion for quality service to every job.
In 2018, he approached longtime friend and now business partner, David, with the idea of starting their own company—one built on the values of honesty, reliability, and top-tier craftsmanship. Driven by a desire to do things differently, Ronald helped build a company that treats customers like family, offering exceptional service at fair, transparent prices. David and Ronald’s commitment to customer relationships is at the heart of everything the company does. Outside of work, Ronald is a proud husband and father to two boys. He and his family love spending time outdoors—whether it’s hiking, biking, traveling, visiting kids’ museums, or attending pop-up events around town.
David Leahy
David Leahy, Co-Owner
As a founder and co-owner of Nothing But Water Heaters, he has fulfilled a long-time dream of creating a company that prioritizes quality workmanship and treats every customer like family. Frustrated by the number of companies that take advantage of customers, David and his business partner Ronald set out to build a business rooted in integrity, affordability, and community trust. That mission remains at the heart of everything the company does today. Outside of work, David is a proud father of two—one boy and one girl. He enjoys spending his free time outdoors with his kids, whether it’s swimming, hiking, biking, camping, or enjoying a day at the lake.
Ronald Munguia
Ronald Munguia, Co-Owner
In 2018, he approached longtime friend and now business partner, David, with the idea of starting their own company—one built on the values of honesty, reliability, and top-tier craftsmanship. Driven by a desire to do things differently, Ronald helped build a company that treats customers like family, offering exceptional service at fair, transparent prices. David and Ronald’s commitment to customer relationships is at the heart of everything the company does. Outside of work, Ronald is a proud husband and father to two boys. He and his family love spending time outdoors—whether it’s hiking, biking, traveling, visiting kids' museums, or attending pop-up events around town.
Paul
Paul, Co-Owner and CFO
Joe
Joe, Office Manager
Manny
Manny, NBWH Technician
Osi
Osi, NBWH Technician
Michael
Michael, NBWH Technician
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They responded within a couple of hours, and sent texts confirming their appointment time and also another when they were in the way...These guys are top notch in my book, and I would highly recommend them to anyone in need of their services.
Our water heater broke and flooded our home over night. Called first thing in the morning and he came right out within 30 mins. Honestly he made my anxiety go away...Great work, great company, great guy. THANK YOU!
Very efficient, knowledgeable and reasonably priced. David is very professional and does clean work. I will definitely be calling & referring NBWH for all of my water heater needs!
The city inspector was an enigmatic man but he seemed impressed by the installation. He commented that Nothing But Water Heaters included something that was required by code but a lot of installers don't do it. Nothing But Water Heaters went above and beyond for me!

I definitely recommend David and his company and will use and refer him when needed! The reviews don't lie and I can see why this honest and fair company has such high reviews!

Simply put, this THE BEST water heater company in town. I've used them now at two different properties and on three different occasions. After my great experience with them, I will never go elsewhere. I stay loyal because they are honest and do great work for a fair price. I'm all about Nothing But Water Heaters for life!

He initially checked to see if it was repairable, but unfortunately it was beyond repair. Gotta love that Vegas hard water...After roughly an hour, we had a new water heater, and hot water has been restored in our household. Thanks David for making the process as easy as can be, all things considered.

Another satisfied customer! David and Ronald were unbelievably friendly, professional and extremely reasonably priced. Would recommend and work with them again in a heart beat. David made sure we knew everything about our products. He was very patient and easy to understand. I noticed that small business' always go out of their way for customer satisfaction.

Recommend for water heater issues. Showed up on the same day. Zero sales pitches. Professional, knowledgeable, and courteous...We've seen several other plumbing companies in our neighborhood—sometimes revisiting the same house multiple times. So, I feel we called the BEST company to assess and fix our issue the RIGHT WAY on the FIRST VISIT.

Excellent service and reliable! We had a small leak and called them in the morning and they showed up same day two hours later and we replaced our water heater completely. Ronald was personable, knowledgeable and we are so thankful this company was able to assist in such a small time frame. Definitely recommend this company!

Contacted the company over Yelp in the evening and they were out the very next day. Install was seem less and Ronald was informative and helped set up everything! Super happy with the sales process. It wasn't a lot of haggling (for example I had one company start with a price around $2k and they went down to $1400). Enough with the back and forth, just go [call] Nothing But Water Heaters. They're great!

Great company was out in 20 minutes and Ronald who came out told me my pilot light was out he relit it and charge me nothing for the service. That was very honest he could have told me anything cause I am clueless on water heaters you should call Ronald or David people you can trust!!!!

It was so convenient that everything was done in one day and we were able to have hot water immediately...Highly recommended! If you have water heater issues, give these guys a call!