Holmes Water Treatment Co 1248 S Callahan Rd Wentzville, MO 63385, United States 636-327-6404 [email protected] http://www.holmeswatertreatment.com/ A fresh glass of crisp water tastes even better when you know it’s clean and safe. Holmes Water Treatment Co in Wentzville, MO, provides water filters to ensure your drinking water is top quality. The water treatment specialists have been serving residential and commercial customers for more than 40 years, offering a diverse selection of water filters and water... read full review »