Build Your Own Custom Hot Tub, Plunge Pool or Swim Spa — And Save Thousands
Step-by-step masonry construction plans, 2 full build videos, and one full year of unlimited personal support.
✔ Permanent masonry construction
✔ Designed for homeowners
✔ Instant digital access
Why Most Homeowners Overpay
Hiring a contractor can cost $15,000–$30,000+.
Buying a portable spa often means:
• Limited lifespan
• Expensive repairs
• Minimal customization
• Sales pressure without real education
• Immediate depreciation
If you want something permanent, adds equity value and cost-controlled, you need proper
construction guidance.
Complete DIY Masonry Spa & Pool Construction System
Get my “Award Winning” Hot Tub Building Information Package today (voted the #1 How to DIY information guide for building spas, hot tubs, and plunge pools) which includes 6 books packed with priceless information. Plus, now you get two videos of actual build projects from start to finish! Sit back and watch as I take you through each step needed to complete your own spa or hot tub.
If that wasn’t enough, you’ll also get two FREE bonus books covering more must-have DIY backyard projects and the latest money-saving tips. That’s 8 amazing books in total! But here’s the best part: being a Custom Built Spas customer means FREE, unlimited email and over-the-phone consultation from me, an industry-recognized expert.
Custom Built Spas’ “How-To” Information Package is the “gold standard” for DIY directions on Hot Tub building projects and is not available anywhere else! For over 25 years, Custom Built Spas has been helping customers everywhere build spas and hot tubs. I’ll guide you through the process until your project is fully completed and operational!
REAL RESULTS FROM OUR CUSTOMERS AND OTHERS
(Directly from Instagram #CustomBuiltSpas)
Cal E. Fernley Nevada
As a general contractor for many years, I have a wide range of knowledge of the trades. My wife...
Spencer N. Richfield, UT
Hi Gene, I just wanted to let you know that when we started this crazy project, I was really...
Charlie C. Hailey ID
Gene was invaluable to our pool project! From the moment my wife Anne found his website I talked...
MEET THE EXPERT, GENE TRUMBULL
🌟 Custom Built Spas: Transforming DIY Dreams into Reality Since 1999
Founded by Gene Trumbull, a proud veteran and seasoned DIY expert, Custom Built Spas began with a clear mission: to empower DIY enthusiasts like you to create stunning spas, hot tubs, and swim spas with confidence. When Gene set out to build his own hot tub, he was shocked by the lack of quality guides and the poor results from the tutorials available. That’s when he decided to take matters into his own hands—and yours!
Gene’s vision was simple: to make building a high-quality spa an achievable, enjoyable, and rewarding experience for everyone.
💡 From Visionary to Industry Leader
Over the years, Gene has become one of the nation’s top experts in DIY spa construction. Featured in leading industry publications like Pool & Spa News and showcased on top handyman websites, his expertise has guided countless homeowners in the U.S. and across the globe to create beautiful, custom-built spas.
📖 Learn from the Best
Gene’s information packages are more than just guides; they’re your ultimate blueprint to success. When you purchase a package, you’re not just getting instructions, you’re getting a personal coach. With Gene’s expertise by your side, you’ll be equipped to tackle your project from start to finish with confidence and precision.
🛠️ Real Success Stories, Real Results
Don’t just take our word for it! Visit the testimonials page to see the incredible spas that other DIYers have built using Gene’s guidance. These stunning creations are proof of what’s possible with the right tools, knowledge, and expert support.
✨ Start Your DIY Journey Today!
Take the first step toward building the spa of your dreams. Order your information package now and experience the satisfaction of creating something truly extraordinary, backed by an industry-leading expert you can trust.
The Latest Resources
Why a DIY Plunge Pool Is a Smart Alternative For a Small Backyard
Small Backyard? You Still Have Options A small backyard doesn’t mean you have to give up on the idea of enjoying your own personal water retreat. Many homeowners assume their only choices are an expensive full-size pool or a portable hot tub, but there’s a third...
How Much Does It Really Cost to Build a DIY Hot Tub in 2026?
Introduction If you’ve been thinking about building your own hot tub, you’ve probably noticed one thing right away, price ranges are all over the map. Some people claim you can build one for a few thousand dollars, while others say it costs as much as buying a...
DIY Hot Tub vs Plunge Pool: Which One Makes Sense for a Small Backyard?
Homeowners with small backyards often assume their options are limited when it comes to adding a water feature. In reality, compact outdoor spaces can be ideal for DIY hot tubs and plunge pools—if you choose the right one. While hot tubs have long been the go-to...
GET STARTED TODAY
1 YEAR PERSONAL SUPPORT
1 Year of Unlimited Personal Support
For one full year, you have direct access to me.
✔ Email guidance
✔ Phone consultations
✔ Plan review
✔ Troubleshooting during construction
You are not left alone. (Build for yourself but, not by yourself)
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!
