Water Softener & Reverse Osmosis Services in Rexburg, Idaho
Water Softeners Plus LLC · Licensed Plumber Serving Rexburg & Southeast Idaho
Rexburg has doubled in population over the past two decades, and every new home and apartment built here faces the same problem: some of the hardest municipal water in Southeast Idaho. The City of Rexburg reports water hardness at 16 to 19 grains per gallon — harder than Idaho Falls, harder than Rigby, and well above the national average. Whether you own a family home or manage rental properties near BYU-Idaho, a water softener engineered for these Rocky Mountain conditions protects your investment from day one.
16–19
GPG water hardness
(per City of Rexburg)
40K+
Rexburg
residents
24K+
BYU-Idaho
students
Rexburg Water: A College Town with a Hard Water Problem
Rexburg's water comes from local groundwater wells (PWS ID: ID7330022) tapping into the upper Snake River Plain. The volcanic and sedimentary geology of eastern Idaho means that groundwater picks up heavy mineral content as it moves through the rock. The result is some of the hardest municipal water in Southeast Idaho.
According to the City of Rexburg, water hardness runs 16 to 19 grains per gallon — harder than neighboring Idaho Falls (14 GPG) and significantly harder than the national average of about 5 GPG. Independent water quality databases report Rexburg hardness as high as 18.5 GPG (around 315 PPM), classifying it as "very hard" and noting significant scaling potential. That makes Rexburg one of the hardest municipal water supplies in all of Idaho.
What makes Rexburg unique isn't the hardness level — it's the sheer volume of housing that's affected. Since BYU-Idaho became a four-year university in 2000, the city's population has grown from 17,000 to over 40,000. New student housing complexes, family homes, and apartment buildings have gone up at a rapid pace. Every one of them is running hard Rocky Mountain water through brand-new plumbing and appliances.
Without a water softener, that mineral-heavy water starts coating heating elements, narrowing pipes, and degrading appliances from the very first day. In a city with this much housing turnover, the damage adds up fast.
Rexburg landlords and property managers
If you manage rental properties in Rexburg — whether it's BYU-Idaho approved housing, married student apartments, or community rentals — hard water is silently costing you money every month. At 16–19 GPG, your water heaters lose efficiency, your dishwashers and washing machines wear out faster, and you're replacing fixtures and appliances years ahead of schedule.
A water softener engineered for Rocky Mountain hard water is one of the highest-ROI upgrades you can make to a rental property. It protects every water-using component in the unit, reduces maintenance calls, and extends the life of appliances that are expensive to replace between tenants. At $1,799 installed, most landlords see a return within the first couple of years through reduced repairs and replacements alone.
Rexburg families and homeowners
If you own your home in Rexburg, the benefits are the same — just more personal. Soft water means no more white scale on your faucets, no more spots on your dishes, softer skin and hair after every shower, and appliances that last the way they should. Your water heater works up to 29% more efficiently, and you'll use 50–75% less soap and detergent. A water softener engineered for the hard Rocky Mountain water we deal with here isn't a luxury — it's protection for your home.
Our Services in Rexburg
Water Softener Installation
NuGen Fusion XT — American-made and engineered for hard Rocky Mountain water. NSF/ANSI 44 certified, lifetime tank warranty. Includes unit, all plumbing, programming, and 400 lbs of salt.
Learn more →$1,799
Reverse Osmosis Installation
Purified drinking water at your kitchen tap. Removes ~98% of dissolved solids. Installed under the sink or in your utility room to save space.
Learn more →$599
Softener + RO Bundle
Complete whole-home water treatment engineered for Rocky Mountain hard water. Soft water for every tap and appliance, plus purified drinking water at the kitchen sink. Save $200.
See full pricing →$2,198
Free Water Assessment
We test your water at no cost. You'll get your exact hardness number and an honest recommendation — no obligation, no pressure.
Schedule yours →Free
Why Rexburg Homeowners and Landlords Choose Us
Licensed plumber, not a salesman. Chad Baxter has over 24 years of plumbing experience and personally handles every installation in Rexburg. No subcontractors. The same person who recommends your system is the one who installs it — whether it's a single-family home or a multi-unit rental property.
Equipment engineered for Rocky Mountain hard water. The NuGen Fusion XT isn't a generic softener designed for average U.S. water conditions. It's built in Lindon, Utah by a manufacturer with over 35 years of experience serving homes in the mineral-heavy Rocky Mountain region. It's NSF/ANSI 44 certified — performance independently verified, not just claimed. The lifetime tank warranty, 10-year resin warranty, and 5-year electronics warranty mean this unit is built to outlast the appliances it's protecting.
Transparent pricing. We publish our prices because we think you deserve to know what you're looking at before you call. Whether you need one unit for your home or you're outfitting multiple rental properties, the price is the same — $1,799 installed, no hidden fees. See our full pricing breakdown.
Proven reliability. Across all installations, Chad has received only two service calls — and neither was a product failure. That track record matters when you're choosing equipment for a rental property that needs to run trouble-free between tenants.
Ready for Better Water in Rexburg?
Whether you're a homeowner, a landlord, or a property manager — we'll test your water for free and give you an honest recommendation. No pressure, no upsells. Just the right equipment for Rexburg's hard water, installed by a licensed plumber.
Nearby Service Areas
Frequently Asked Questions
How hard is the water in Rexburg, Idaho?
According to the City of Rexburg, water hardness runs 16 to 19 grains per gallon — making it some of the hardest municipal water in Southeast Idaho. Independent databases report levels as high as 18.5 GPG (around 315 PPM). That's harder than Idaho Falls (14 GPG) and well above the "very hard" threshold. A free water test will tell you your home's exact number.
How much does a water softener cost in Rexburg?
Water Softeners Plus installs NuGen Fusion XT water softeners — engineered for hard Rocky Mountain water — for $1,799. That includes the unit, all plumbing, programming, and 400 lbs of salt. Reverse osmosis is $599 installed with standard faucet (+$100 for premium faucet or utility room install). The softener + RO bundle is $2,198.
Should I install a water softener in my Rexburg rental property?
Yes. Hard water at 16-19 GPG causes appliance damage and plumbing wear that landlords pay for. A water softener protects your water heater, dishwasher, and plumbing, reducing maintenance costs and extending the life of everything water touches. In Rexburg's active rental market with high housing turnover, that protection pays for itself quickly.
Do you work with property managers and landlords?
Absolutely. Whether you need a single install or you're outfitting multiple units, we offer the same transparent pricing — $1,799 per unit installed. Call Chad at (208) 419-7372 to discuss your properties.
Do you offer free water testing in Rexburg?
Yes. We test your water at no charge, tell you your exact hardness number, and give you an honest recommendation. No obligation. Call Chad at (208) 419-7372.