Find & Compare Water Treatment Companies in Your Area!

Water treatment companies test household water and install softeners, whole-house filters, reverse osmosis drinking systems, iron and sulfur filters, and UV disinfection, then service them. Visitors have hard water scaling fixtures, a rotten-egg smell, orange staining, a well test that came back with bacteria or nitrates, or a taste they want gone.

Installation usually requires a plumbing license in most states, and many require a backflow device on the connection. Ask for an independent lab test, not just a demonstration kit, and ask what each piece of equipment is meant to fix. Ask about salt or filter consumption, maintenance cost, and whether the company sells, rents, or leases systems; a high-pressure in-home sales pitch is a known pattern in this trade, so take the quote home. Expect pricing per system installed, plus a service contract if you want one. Well pumps and pressure problems are for plumbers, and septic services matter when a well and a drainfield sit on the same lot.

Water treatment businesses on this page wrote their own listings, and a person reviewed every entry before it was published. If you install or service water systems, apply to get listed — free, and it takes just a few minutes.