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How to Build a Hot Tub
Professional Instructions and Incredible Results!

Learn How to Build Your Own Custom Spa or Hot Tub

  • We provide The Ultimate Guide information package for Building Your Own Spa, Hot Tub, Plunge Pool, Cocktail Pool, Swim Spa or Exercise Pool!
  • Includes Six E-Books Packed with Industry Knowledge Plus 2 DIY Bonus Books covering more awesome must have backyard projects that are easy to do! That's a total of 8 books in all! All books are my latest revisions with all the latest money saving updates!
  • Package also includes a 2.5 Hour Instructional Video That Walks you Through a Step by Step process for building a Hot tub!
  • Here's the best part! FREE Unlimited Email and Over-the-Phone Consultation from an Industry Expert, - Personal Coaching until your project is complete!

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Meet the Expert, Gene Trumbull

Custom Built Spas is A Veteran Owned Business established in 1999 by Gene Trumbull. Gene understands the desire and satisfaction fellow DIY (do it yourself) enthusiasts get by being able to construct different kinds of projects by themselves. What he also came to understand was when he was looking into building a hot tub, there was virtually no real quality DIY information available anywhere for doing this type of project. Oh sure you could find a few videos on YouTube with all kinds of crazy ways to construct a spa or hot tub. But most of this stuff quite honestly, produced results you would not be proud to have in your backyard.

In addition, the information you could find, lacked far too many important essential details, critical to someone working to complete a successful spa or hot tub project. Armed with that knowledge, Gene made it his mission and desire to turn building a spa or hot tub into a very doable, high quality DIY project not only for himself, but for others as well. Long story short that was over 17 years ago!

Since then, Gene has become one of the nations recognized leading authorities on spa, hot tub, swim spa, plunge pool, cocktail pool and exercise pool building. He has been interviewed by industry magazines such as Pool & Spa News and articles on his project manuals have been posted on several prominent "handyman" web sites over the last several years, plus he has countless customer completed projects not just in the US but around the world!

Here's what's so unique about what Gene and Custom Built Spas offers to anyone buying his spa, hot tub and swim spa building information package, they can get FREE one on one personalized coaching help on their own project until it’s done! As Gene puts it, “I become your personal spa building Coach!” Think about this, who offers that kind of service these days? Go ahead and read through the rest of site pages and get excited about what you are about to learn.

Learn More About Gene and Custom Built Spas Buy Now

Real Results from our clients and others

(Directly from Instagram #CustomBuiltSpas)

  • This Valentines Day show your love and promise to build your special someone a hot tub. Custom Built Spas can show you how! # valentine's day, #diyhottub, #custombuiltspas
  • We can get you Hot without spending a lot! Let us show you how to save thousands of dollars by building a hot tub by yourself. Plus get free consulting until your project is done! Visit, #DIYHOTTUB, #backyardprojects, #buildyourownspa, #DIY, #plungepool, #swimspa, #howtobuildahottub.
  • Do you have an area in your home that would make a perfect place for a nice private hot tub? If so let Custom Built Spas show you how to build it yourself and save a ton of money! #DIYHOTTUB, #backyardprojects, #custombuiltspas, #plungepool, #homeimprovement, #buildyourownhottub,  #DIY
  • What's more enjoyable than coming home to relax in your own hot tub. Custom Built Spas not only shows you how to build your own hot tub, we help you build it from start to finish. Learn more about what we can do for you, visit, #DIY, #buildyourownhottub, #homeimprovement, #backyardprojects, #diyhottub, #plungepool, #swimspa
  • Would you like to build a hot tub but your well meaning friends are telling you it's to hard to do unless you have a lot experience? Don't let them ruin your dream. The hot tub in this picture was built by a Dentist with no previous DIY experience, just the help provided by Custom Built Spas. #DIYHOTTUB, #DIY, #plungepool, #buildyourownhottub, #homeimprovement, #smallpool, #custombuiltspas
  • When you come home from a hard day at work, this is where you want to go to relax. Custom Built Spas can show you how to save thousands of dollars on a hot tub by building yourself. Visit, and see what we have to offer.  #DIYHOTTUB, #backyardprojects, #homeimprovement, #DIY, #plungepool, #buildyourownhottub, #buildyourownspa, #diyprojects.
  • Are you ready for your own hot tub this year but don't think you can afford it! Don't buy a hot tub, build one! Custom Built Spas will help you from start to finish. Visit and see how.  #DIYHOTTUB, #backyardprojects, #buildyourownspa, #buildyourownhottub, #DIY, #plungepool, #swimspa, #howtobuildahottub, #cocktailpool.
  • Maybe a full size pool is just not in your budget. However, a plunge pool certainly could be. And, how about if someone could show you how to build one yourself plus, helped all through your project until it was done. That's what we do here at Custom Built Spas. Visit, and find out more. #DIY, #plungepool, #buildyourownhottub, #homeimprovement, #backyardprojects, #pool, #buildyourownspa, #diyprojects.
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The Latest News

2 February

DIY hot tub

If you’ve been poking around the internet looking at the possibility of building a DIY hot tub, it can be very confusing. No disrespect to legitimate info providers but there is a lot of crap out there. I know this for a fact because surf the net looking at what’s being put out there myself. […]

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29 December

Will 2018 be Your Hot tub Year

Happy New Year to all my readers and followers! It seems that the rumor mill is buzzing with optimism in regards to the economy in the pool and spa industry. Many of the pool and spa industry gurus are predicting a great Hot Tub Year after the past few years of depressed sales. All industries […]

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1 December

Hot Tub Facts – Straight Talk

With so many buying options for hot tubs and spas, if you’ve never owned a hot tub before, there’s a really good chance you’re going to make a mistake on your first hot tub purchase. That mistake could very well lead you to being turned off about owning another hot tub in the future and […]

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