Come to Life: The 50-Year Story of Caldera Spas

Fifty years is a rare milestone in any consumer industry. In the hot tub business, it’s almost unheard of. Caldera Spas reaches that mark in 2026 — still distinct, still growing and still recognizable to the dealers who have built their businesses around it for decades.

The brand’s story stretches from a small fiberglass shop in El Cajon, California, to a global product line sold through a network of independent retailers across North America and beyond. It’s a story about where Caldera Spas came from, how Watkins Wellness grew and transformed it and where the brand is headed next.

Where it started: A fiberglass shop and a vision

Caldera Spas traces its origins to 1976, when a small El Cajon operation called Custom Fiber Engineering was doing contract fiberglass work with a handful of spa molds in the mix. David Ingram, one of the brand’s earliest owners, got involved in the late 1970s when the business was on the verge of collapse. He negotiated with creditors, assumed full control and set about figuring out how to build and sell hot tubs.

In the beginning, Ingram loaded spa shells into a double-decker trailer and drove routes through the western United States — up the California coast, into Sacramento and Nevada, east through Arizona. He called on pool builders and early spa retailers, selling the idea that a portable, high-quality spa was something consumers genuinely wanted.

“I didn’t come home until they were sold,” Ingram says.

From the beginning, the team focused on building spas that felt comfortable, not just products that looked good on a showroom floor. Engineers refined seat contours and jet placement to create more intentional hydrotherapy. That philosophy eventually became the foundation of the Caldera Spas brand identity: comfort, design and performance.

“I’m a hot-tubber, and I believe in them,” says Ingram, now 75 and still active with skiing and golf. “Pure Comfort and Hot Tub Circuit Therapy are still with us today, and they’ve really been cornerstones of the Caldera Spas brand.”

The Watkins era: Building something bigger

By the early 1990s, Caldera Spas had grown into a profitable, recognizable brand. Ingram began thinking about succession and ultimately concluded that the right next chapter was a merger with Watkins Manufacturing, already one of the industry’s largest producers. The acquisition was completed in 1999, and with it Caldera Spas gained access to engineering resources, distribution infrastructure and manufacturing scale that the independent company could never have built alone.

For Watkins, the acquisition was equally strategic. Caldera Spas brought a highly styled product line and a loyal dealer base — exactly what the company needed to become a truly multibrand organization.

“Our vision for Caldera Spas was always very simple,” says Steve Hammock, former president of Watkins Manufacturing who retired in 2022. “We needed a standalone brand, and we believed that through our leadership and strategic agility Caldera Spas could be a top-five brand in the world. That was always our goal.”

Watkins invested in new factories, expanded marketing capabilities and brought on talent that became, in Hammock’s words, “a force multiplier.” The dealer network grew. Purchasing power improved. And Caldera Spas’ distinct identity — premium positioning, comfort-first design and high-quality fit and finish — was preserved and amplified rather than absorbed.

“Caldera Spas has been a growth engine for us,” says Matt Teague, director of new business development at Watkins Wellness. “When I bring somebody into the factory and walk them up to one of our hot tubs, the fit and finish tell the story. That attention to detail has always been part of what makes this brand special.”

Comfort, design, performance: A brand built to last

At its core, Caldera Spas has always stood for three things: comfort, design and performance. Steve Stigers, president at Watkins Wellness, says that is not just a tagline but a product philosophy that the Watkins team continues to invest in with each generation of spas. “Every element is thoroughly thought out to deliver an exceptional consumer experience,” Stigers says.

“When you sit in a Caldera seat, it’s curved and contoured and the jets are perfectly placed,” says Rachel Ertman, brand manager for Caldera Spas at Watkins Wellness. “And with design, they’re beautiful. This is something that’s going to be in your backyard for years and years. And for performance, our hot tubs deliver a powerful massage and are ready when you are.”

Recent innovations from Watkins Wellness have extended that commitment into water care and technology. The FreshWater IQ Salt System, Smart Monitoring, the new dosing system and an IoT platform give owners a more automated water care experience.

“This whole pursuit is about having water that’s fresher, gentler and more natural — so that you’re able to get out better than you got in,” says Scott Iverson, senior sales training manager at Watkins Wellness. “So you can go be a better dad. So you can be the mom who’s juggling 12 things and give your four-year-old the thing they crave the most, which is your attention.”

The dealer network: A family built over decades

For a brand sold exclusively through independent retailers, the dealer relationship is everything. And for Caldera Spas, those relationships trace back to the earliest days of the company.

“Those early dealers weren’t just customers,” Ingram says. “They helped us survive.” Early partnerships formed the foundation of what would become the Caldera dealer network. Over time that network expanded, but the emphasis on long-term relationships remained.

“It always impresses me when I go to dealer conferences and see many of the dealers who have been with us since the Watkins acquisition,” Stigers says. “It’s truly become a family.”

That culture of partnership is something the Watkins Wellness team continues to emphasize. Dealers aren’t just sales channels. They’re the face of the brand to every consumer who walks into a showroom.

“We’re a relationship business,” Teague says. “We build hot tubs, but we also build relationships. It’s really the culture of the dealer group and the camaraderie between dealers that makes Caldera Spas a special brand.”

As the company approaches its 50th anniversary, Watkins leaders say that success is shared with the dealers who helped build the brand.

“This is something we did not do on our own,” Ertman says. “We did this with our amazing dealer network.”

The next 50 years

As Caldera Spas reaches its 50th anniversary, Watkins Wellness leaders say the focus remains on product development and supporting the dealer network that built the brand.

“We’re going to continue to invest and innovate,” Stigers says. “And with our dealer partners, we believe the brand can keep growing.”

Iverson says the company’s long-term philosophy is grounded in steady improvement — showing up every day, fixing mistakes when they happen and continuing to refine the product and the ownership experience.

That consistency is part of why the brand has endured.

“Caldera was one of the original companies in this industry,” Hammock says. “It’s a credit to their resilience that the brand has continued to grow and evolve over time.”

Ingram says the company’s success always depended on the people around it — from the engineers shaping the first shells to the dealers willing to take a chance on a young manufacturer and, later, Watkins picking up the mantle.

“I couldn’t be prouder of all the people from the beginning, in the middle and to the end,” he says.

The Caldera Spas logo includes a butterfly — half gray, half orange — meant to represent transformation and renewal.

“It’s pretty thrilling to be part of something that has a very clear purpose,” Iverson says. “This is about helping people come to life.”