Given the complexities involved with servicing hot tubs, it’s likely not something a homeowner can master without help. So a service professional who is well versed in spa chemistry might benefit from specializing in spas only. But many techs and service companies do just the opposite.

“We have a lot of customers who have a pool and spa, which are separate bodies of water,” says Howard Weiss, a Certified Pool Operator instructor and general manager with Gaithersburg, Md.-based Contemporary Watercrafters. “We service both on weekly visits.”

For some, it’s a geographical issue, says Jeff Brooks, retail sales manager at Seattle-based Aqua Quip. Drive time takes up valuable time, so his company focuses on efficient routing. The firm employs people who can do many types of jobs, so they can be routed based on location instead of job type.

Mike Peacock, owner of Atlanta-based CES Services, works exclusively on hot tubs and says techs need a mechanical or technical background to repair the components. In his opinion, it only makes sense to specialize if you can work with the water chemistry and the mechanics.