Water Treatment
Our whole-home water purifiers and filtration systems effectively reduce or eliminate the most common contaminants.

Serving Southern Utah Since 1996
Licensed & Insured
Upfront Pricing
Local & Family Owned

St. George Water Treatment
Is Your Home’s Water Clean, Safe, and Fresh?
Even water that’s technically safe to drink can be filled with contaminants that impact its taste, smell, and feel. In fact, untreated water can cause many everyday headaches—from stubborn water stains to rapidly aging appliances to brittle hair, skin, and nails! Make your daily life better by calling the St. George water treatment experts at Thompson Plumbing, Heating, Cooling & Electrical.
Call Now (435) 674-5138Real Customers. Real Relationships.
They Said It Better Than We Can
Devun did maintenance on my HVAC, he was knowledgeable and took great care with my home. I appreciate that Thompson isn’t pushy and provide a future service plan. Highly recommend!
Devun did maintenance on my HVAC, he was knowledgeable and took great care with my home. I appreciate that Thompson isn’t pushy and provide a future service plan. Highly recommend!
Scroll through them; then give us a call, and become one of them.
12 Months Same-As-Cash Financing
Big Job? Your Budget Doesn’t Have to Flinch.
Life doesn’t schedule emergencies around payday. Thompson offers flexible financing through GreenSky, including 12 months same as cash, so a broken water heater or failing HVAC system doesn’t become a financial crisis. Find out what you qualify for today.
View Financing Options
0% Interest for 12 Months Available
Low Monthly Payments
Apply Online in Minutes
Fast-Acting and Effective Water Treatment Solutions
Based on your household size, your pipes’ condition, and your local water supply source, we’ll help you choose the best method to treat your water.
Water Service Replacement
A corroded or root-infested water service line can ruin your landscaping and leave you with dirt or sand coming out of the tap. Let us replace this critical pipe to provide fresher water and to protect your lawn, foundation, and property value.
Our Plumbing Services
Water Purification
Whether faucet-mounted or whole-home, our St. George water purification systems effectively remove potential toxins, contaminants, and particulate matter. You’ll notice a better taste and smell right away!
Water Softener
Did you know that Utah has some of the hardest water in the country? Water softeners are extremely helpful for removing excess minerals that cause scaly build-up in your faucets and appliances.
Reverse Osmosis System
One of the most effective forms of water filtration, reverse osmosis is proven to remove or reduce potentially harmful contaminants like lead, chromium, arsenic, and volatile organic compounds (VOCs).
Become a VIP Before You Need a Plumber
Our VIP Club members get priority scheduling, waived dispatch fees, and 10% off every service, every time, with no cap. Preventative tune-ups are included, so you stay ahead of the expensive stuff instead of reacting to it.
- Priority Scheduling, Always
- Dispatch Fees Waived
- 10% Off Everything
Full-Service Plumbers with Proven Experience
Certified Experts
We’re properly licensed and insured for all kinds of plumbing and water treatment needs.
Years of Service
We have more than 42 years of combined experience, which translates into faster, more reliable service for you.
Extended Hours
We offer the same great rate from 8 to 8, providing longer service hours and more convenient scheduling.
Trust the Team St. George Has Counted On Since 1996
When something in your home stops working, you don’t want guesswork — you want a licensed local pro who shows up on time, gives you a fair price upfront, and stands behind the work. That’s the Thompson promise, and it’s why homeowners across Southern Utah keep calling us back year after year. Call now or book online, and we’ll take it from there.

