Custom Built Spas

Call Today: (860) 571-8440

Don’t Buy A HOT TUB

When You CAN Build One!

Professional Instructions Produce Incredible Results

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Charlie C. Hailey ID

Charlie C. Hailey ID

Gene was invaluable to our project! From the moment my wife Anne found his website I talked myself...

Joey P. Santa Rosa, CA

Joey P. Santa Rosa, CA

Working with Gene at Custom Built Spas was a great experience! His knowledge and willingness to...


Established in 1999 by Gene Trumbull, Custom Built Spas was started as a Veteran Owned Business. Gene understands the satisfaction fellow DIYers get by being able to construct and complete different kinds of projects. While looking into building a hot tub, he also realized there was a serious lack of comprehensive instructions for this type of project. The few tutorials he managed to find yielded sub-par results or lacked many essential details. Therefore, Gene made it his mission to turn building a spa, hot tub, or swim spa into a very doable, high-quality DIY undertaking.

Since then, Gene has become one of the nation’s leading authorities on the subject. He has been interviewed by industry magazines such as Pool & Spa News, and articles from his project manuals have been featured on prominent “handyman” websites. Gene has helped countless homeowners complete projects in the US, as well as countries around the world.

Get your very own information package today, and let Gene become your personal spa-building coach. That’s a one-of-a-kind service you won’t find anywhere else. Discover what you can accomplish by reading through the testimonials page and seeing the beautiful spas Gene’s customers have built.

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Remember, my Mission is to help you, as my customer, build a beautiful hot tub of your own! I can show you how to build Spas, Hot Tubs, Swim Spas, Plunge Pools, Cocktail Pools or Exercise Pools at incredibly affordable prices! Everything you need to know is outlined in my series of easy-to-follow books and videos that cover a simple, step-by-step process that I’ve developed and refined over the years.

I will teach and help you with everything you need to know about building your own spa, hot tub, or swim spa yourself, regardless of what your DIY skill levels are and at a cost, YOU determine YOU can afford. As my customer, I’ll work with you at your own pace until your project is done and comes to life! For over 25 years now I’ve been helping people just like you, build their own hot tubs, spas, and swim spa projects. So, are you’re ready to let me help you build your project? Then what are you waiting for, let’s do this!

Custom Built Spas