Water Filtration
Cleaner, softer water for your entire home: water softeners, reverse osmosis, and whole-home filtration systems
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Water Filtration & Softener Installation
Our water here is very hard. Mineral buildup damages appliances, leaves residue on fixtures, and affects the taste and quality of your water. We install whole-home water softeners, under-sink filters, and reverse osmosis systems to give you cleaner, softer water throughout your home. Hard water also accelerates damage to your water heater and causes scale buildup in your pipes. We install filtration systems in Ontario, Rancho Cucamonga, Fontana, Pomona, Chino, Corona, Upland, and West Covina.
- ✓Whole-home water softener installation
- ✓Under-sink reverse osmosis systems
- ✓Carbon filtration
- ✓Softener and filtration combos
- ✓Softeners for tankless water heaters
- ✓Free on-site estimates
What We Cover
Services We Provide
Water Softeners
Whole-home water softeners remove calcium and magnesium, protecting your appliances and leaving skin and hair feeling softer.
Reverse Osmosis
Under-sink RO systems give you filtered, great-tasting drinking water right at the kitchen sink.
Whole-Home Filtration
Filtration systems that treat all water entering your home, so every faucet, shower, and appliance gets filtered water.
How We Work
Why Choose Regal?
Free Camera After We Clear It
On a drain call we cable the line first, then we typically run a camera through it free of charge as a courtesy, so you can see why it backed up.
Shielded Bands, Not Rubber
On sewer repairs we typically use a heavy-duty Husky band with a full metal shield, not the rubber Fernco band held on by two hose clamps.
30 Minutes to an Hour on Emergencies
A real person answers around the clock, and we can typically reach an emergency call within 30 minutes to an hour.
1-Year Warranty on Labor
Our labor comes with a 1-year warranty. Anything we note on your invoice as not covered by warranty isn't included.
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
We find slab leaks with acoustic equipment, by pressurizing the line and with thermal equipment, then reroute most of them through the attic.
Learn More →Hydrojetting
High-pressure water jetting to scour pipe walls and restore full flow.
Learn More →Gas Leak Detection
Gas line leak detection and repair.
Learn More →Pipe Repair
Expert pipe repair and replacement for copper, PVC, and galvanized systems.
Learn More →Commercial Plumbing
Commercial plumbing service for businesses.
Learn More →Service Coverage
Cities We Serve
We serve these cities from our shop in Ontario.
Real Photos
From Recent Jobs
Treatment Options
Our Water Treatment Systems
3-Stage Carbon Filtration
Removes chlorine, sediment, and odors from your water. Great for improving taste.
Whole-Home Water Softener
Removes the hard water minerals that build up on fixtures and wear on pipes and water heaters. Softer water means longer-lasting plumbing and less white scale.
Softener + Carbon Filter Combo
Full treatment combining softening and filtration for the cleanest water possible. Removes hard minerals, chlorine, and contaminants in one system.
Reverse Osmosis + Whole-Home System
Filtered drinking water plus whole-home protection. The RO system handles drinking water at the kitchen sink while the whole-home system softens and filters every tap.
Local Water Quality
Hard Water in the Inland Empire
Our water is very hard, and homeowners in Ontario, Rancho Cucamonga, Fontana, and Corona deal with it every day.
The minerals cause white crusty buildup on faucets and showerheads, ruin faucet and shower valve cartridges, shorten the life of your water heater, and lead to clogged pipes and slow drains. Homeowners across Pomona, Upland, West Covina, and Chino deal with the same problem.
A professionally installed water softener or filtration system protects against all of this. Our team at Regal Plumbing installs these systems across Ontario, Rancho Cucamonga, Fontana, Pomona, Corona, Upland, West Covina, and Chino. We help you pick the right system and install it.
LOCAL WATER QUALITY
Why Water Quality Is Poor in Ontario CA and Surrounding Cities
Homeowners in Fontana, Pomona, and Chino deal with hard water too. High mineral content leaves white residue on everything the water touches, dries out skin and hair, and creates stubborn scale inside pipes and appliances. For water filtration in Ontario CA and surrounding cities, addressing these minerals at the source is the most effective solution.
The problem compounds over time. Without treatment, mineral deposits narrow pipes, reduce water pressure, and force appliances like water heaters and dishwashers to work harder. Residents in Corona, Upland, and West Covina often don't realize the damage until a plumber discovers heavy scale buildup during a repair call.
SYSTEM OPTIONS
Types of Water Filtration Systems We Install
We install a full range of water treatment systems tailored to the specific needs of homes in Ontario and Rancho Cucamonga. Whole-home water softeners use ion exchange technology to remove calcium and magnesium, the minerals responsible for hard water scale. These systems protect every pipe, fixture, and appliance in your home from buildup. Soft water also extends the life of your water heater by preventing sediment accumulation inside the tank.
Reverse osmosis (RO) systems are installed under the kitchen sink and produce purified drinking water by forcing tap water through a semi-permeable membrane. Carbon filtration systems target chlorine and unpleasant tastes or odors. They're a good whole-home option for improving everyday water quality.
Many homeowners combine a softener with filtration in a single setup.
KNOW THE SIGNS
Signs You Need a Water Filtration System
If you're noticing any of these issues in your home, hard water or poor water quality is likely the cause: scale buildup on faucets and showerheads, white spots on dishes after washing, dry skin and hair even with moisturizing products, a bad taste or chlorine smell from the tap, frequent water heater issues or premature failure, and white chalky residue on pots after boiling water.
These are all telltale signs that your water contains excessive minerals or contaminants. Homeowners in Fontana and Corona report these problems regularly, and a properly sized filtration or softener system is the fix. We give you a free on-site estimate before you commit to any equipment.
SERVICE AREA
Water Filtration Installation Across Our Service Area
Regal Plumbing & Rooter provides whole home water softener installation in Ontario CA and water softener installation in Rancho Cucamonga CA along with every city we serve. Whether you need a basic carbon filter or a complete whole-home treatment system, we bring the same expert service to every job.
We also install and service filtration systems in Fontana, Pomona, Chino, Corona, Upland, and West Covina. Check our current specials for seasonal offers on water treatment systems, or get a free quote to find the right solution for your home.
Common Questions
Water Filtration FAQs
Ask about our current specials when you call.
Better Water Starts with One Call
Free on-site estimates on water softeners and filtration systems
(909) 600-4561Call Now