Elizabeth Mohler started the hot tub and pool chemicals because of her love of her own pool. There weren't any company's offering the service in the area when she began it as a side business to her and Kent's Siding and Window company. Liz saw a need and wanted to help other spa and pool owners with their water without having to drive into the city.
Missouri does not issue a statewide electrical, plumbing, handyman and general contractor license and delegates licensing and permitting process to the local permitting authority of the city the contractor works in. So a contractor you consider to hire must be in compliance with any local jurisdiction regulations.