"I was very happy working with Gene at Custom Built Spas. I was able to build a beautiful hot tub that my family and I use all the time. I saved thousands of dollars by doing it myself. Gene was always just a phone call away to help me solve any issue and come up with...

Building an indoor American-style hot tub in Europe was a big challenge for me. Especially here in Croatia, such things were never built DIY! Gene was very helpful during the whole process, and his advice, books and videos made this project possible and made me a...

Hi Gene, it was a total pleasure working with you. You are a class act with a genuine and insightful level of service to your customers that non only provides the confidence needed to make it through the entire project, but makes the project a whole lot of fun along...

Several years ago, I was curious about the possibility of building my own hot tub. After a lengthy search online, I stumbled on Gene’s website. I ordered the video and book immediately. After reading through the material at least several times and watching the video...

We had the great fortune of finding Gene and Custom Built Spas online and he was able to guide us along on our hot tub building journey. Being designers we wanted to create something special and truly unique. We had absolutely no idea what we were getting ourselves...

"I highly recommend Gene and Custom Built Spas, the value you get is excellent. Essentially you learn how to build a hot tub or small pool. Not only can Gene provide all the equipment at a very fair cost in order to build your project, he is extremely thorough with...

"Hi Gene, I wanted to let you know that your instructions for a DIY hot tub were fantastic.  I referred to the video and booklet throughout the project.  As a one-man labor force, and with limited spare time, the project took me a bit longer than expected, but turned...

Good morning Gene, I want to let you know how much I really appreciate your help and guidance with the construction of my spa, I could not have done it without you.  Your knowledge regarding spas and providing all of the equipment and parts that I needed was...

"The spa construction methods offered by Gene Trumbull and Custom Built Spas are comprehensive, easy to follow, and truly do allow homeowners with the average tool using skills and a little common sense to build a spa that will rival anything out there.  The initial...

I found Gene’s website online after getting little-to-no response from local pool builders to renovate a dilapidated 1940’s pool and add an in-ground spa. After reading Gene’s book and watching his videos, I convinced myself I could do the work myself.  Gene’s...

Hi Gene... Thanks again for all your personal help with my hot tub project! It was great working with you and having someone who was always quick to answer any of my questions as I went through the construction phase. Your support made all the difference in the...

Building my spa was a little bit of a challenge, (I did a round spa) a little more work for an avid DIY'er. But with Gene's simple instructions and very thorough videos, you have a pro with you every step of the way. He was happy to take my calls many times throughout...