Water Filtration in Corona, CA
Licensed water softener and filtration installation in Corona — whole-home softeners, reverse osmosis, and carbon filtration for very hard Corona DWP water
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Water Softener & Filtration in Corona
Regal Plumbing & Rooter, a family-owned plumbing company based in nearby Ontario, has installed water softeners and filtration systems across Corona for over 20 years. Corona Department of Water and Power supply tests at 230-320 mg/L hardness — a mix of imported and local groundwater sources. We hold CA License #1097482 and serve every Corona neighborhood from Sierra del Oro to South Corona to Eastvale-adjacent communities. Call (909) 600-4561 for a free water quality assessment.
- ✓Whole-home water softener installation ($1,500-$3,500)
- ✓Reverse osmosis drinking water systems ($600-$1,500)
- ✓Carbon filtration for chlorine and odor removal
- ✓UV purification for bacterial concerns
- ✓Filter cartridge replacement service
- ✓CA License #1097482 — permitted, professional installs
What We Cover
Services We Provide
Whole-Home Softeners
Removes calcium and magnesium from Corona DWP supply at 230-320 mg/L. Protects every fixture, pipe, and appliance in your home.
Reverse Osmosis
Under-sink RO systems deliver pure drinking water by removing 95-99% of dissolved solids from Corona tap water.
Carbon & UV
Carbon filters remove chlorine taste and odor. UV purification handles bacterial concerns. Both pair perfectly with a softener.
Our Promise
Why Choose Regal?
Honest Pricing
Upfront, transparent quotes before any work begins. No hidden fees, no surprises — even in emergencies.
Fast Response
24/7 availability for emergencies. We arrive quickly and work efficiently to minimize damage.
Quality Workmanship
Every job backed by our commitment to premium craftsmanship and lasting results.
Explore
Other Services We Offer
Emergency Plumbing
Rapid-response emergency plumbing for Ontario, CA and surrounding cities - we’re on call around the clock.
Learn More →Drain Cleaning
Professional clearing of kitchen, bathroom, and main sewer line blockages.
Learn More →Sewer Line Repair
Camera inspection, trenchless repair, and full sewer line replacement.
Learn More →Water Heater Services
Installation and repair of tank, tankless, and heat pump water heaters.
Learn More →Slab Leak Detection
Electronic leak detection beneath concrete slabs with minimal disruption.
Learn More →Hydrojetting
High-pressure water jetting to scour pipe walls and restore full flow.
Learn More →Gas Leak Detection
Licensed gas line detection, repair, and pressure testing for safety.
Learn More →Pipe Repair
Expert pipe repair and replacement for copper, PVC, and galvanized systems.
Learn More →Commercial Plumbing
Full-service commercial plumbing for restaurants, apartments, HOAs, and businesses across Ontario & the Pomona Valley.
Learn More →Service Coverage
Cities We Serve
We provide fast, local plumbing service throughout the Inland Empire.
Quick Answer
Hard water in Corona, CA causes pipe scale, appliance damage, and dry skin. Regal Plumbing & Rooter installs whole-home water softeners ($1,500-$3,500), reverse osmosis drinking systems ($600-$1,500), and carbon filtration. Corona water hardness typically 230-320 mg/L from Corona Department of Water and Power. Call (909) 600-4561 for free water quality assessment.
Local Water Quality
Corona’s Hard Water Problem
Corona water from the Corona Department of Water and Power tests at 230 to 320 mg/L total hardness — well past the 180 mg/L “very hard” threshold. The supply blends imported State Water Project water with local groundwater wells, both of which carry significant calcium and magnesium content. Hardness varies slightly by neighborhood depending on which sources are blended for that pressure zone.
Visible damage shows up as crusty white scale on faucets, etched glass shower doors, and chalky residue on dishes. Hidden damage includes accelerated pinhole leaks in copper supply lines and shortened water heater lifespan — typically 3 to 5 years less than rated. Sierra del Oro hillside homes and South Corona neighborhoods see the same hardness as newer Eastvale-adjacent subdivisions.
System Comparison
Softener vs RO vs Carbon — Corona
A whole-home water softener ($1,500-$3,500 installed) uses ion exchange to remove the calcium and magnesium that cause scale — the only system that actually addresses hardness in Corona. A reverse osmosis system ($600-$1,500) installs at the kitchen sink and produces purified drinking water by forcing tap water through a semi-permeable membrane that removes 95-99% of dissolved solids.
Carbon filtration ($500-$1,200) targets chlorine and odors but does not address hardness. The most popular Corona setup is a softener plus an under-sink RO unit — softener for whole-home protection, RO for drinking and cooking. We size every system based on a free in-home water test, household size, and fixture count.
Long-Term Value
Long-Term Cost Savings in Corona
A quality softener lasts 10 to 15 years with $100-$200 per year in salt and routine maintenance. The math works in Corona because hard water is constantly costing you money quietly. Water heaters that should last 12 years often fail at 8-9, dishwashers and washing machines lose efficiency over time, and copper pipes develop pinhole leaks that cost $400-$3,000 to repair.
Most Corona homeowners recoup the softener cost within 5 to 7 years through extended appliance life, lower energy bills (a scale-free water heater uses less gas), reduced soap and detergent usage, and fewer pipe repair calls. Bundling a softener install with a water heater replacement is the smartest play.
Coverage
Water Filtration Across Corona
From Sierra del Oro and South Corona to Coronita, Norco-adjacent communities, and the Eastvale-edge subdivisions, we install softeners and filtration systems in every Corona neighborhood. Browse our full water filtration service overview or visit the Corona service area page.
We also serve neighbors in Ontario, Chino, and Fontana. Call (909) 600-4561 for a free water quality assessment.
Common Questions
Frequently Asked Questions
Ask about our current specials when you call.
Need Water Filtration in Corona? Call Now
Family-owned, licensed since day one — free water quality assessment available
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