Under-Sink RO Systems
Standard 4 to 6 stage systems with a dedicated drinking water faucet and storage tank.
- 4, 5, 6 stage options
- Dedicated faucet
- Pressurized storage tank
Reverse Osmosis Systems in Gilbert AZ
Bottled-quality drinking water straight from your kitchen tap. We install and service multi-stage RO systems that strip out the stuff softeners can't.
- Years of experience
- 15+
- Jobs completed
- 5,000+
- Emergency service
- 24/7
- Licensed, bonded and insured
- ROC #323563
Drinking Water You Can Actually Trust
A softener handles hardness, but it doesn't touch dissolved solids, chlorine, or the long list of other stuff that ends up in city water. A reverse osmosis system filters it all at the tap you actually drink from.
We install 4, 5, and 6-stage RO systems under the sink with a dedicated faucet, and we offer whole-home RO for homes that want filtered water everywhere.
When a Softener Isn't Enough
Soft water still has plenty in it. Here's when an RO system is worth adding.
Bad Taste or Smell
Chlorine, metallic, or earthy tastes that won't go away no matter what.
Buying Bottled Water
If you're hauling cases of water home every week, an RO system pays for itself fast.
Worried About Contaminants
Lead, arsenic, nitrates, PFAS, and other contaminants city treatment doesn't fully remove.
Cloudy Ice & Streaky Glasses
Dissolved solids leave residue even after the softener does its job.
High TDS Reading
If your total dissolved solids reading is over 250 ppm, RO will make a real difference.
Coffee & Cooking Taste Off
RO water transforms coffee, tea, ice, and anything you cook with water.
How Reverse Osmosis Actually Works
RO systems force water through a semi-permeable membrane that blocks particles down to 0.0001 microns. That's small enough to remove dissolved minerals, chlorine, lead, fluoride, and most pharmaceutical residues.
We install sediment, carbon, membrane, and post-carbon stages so every glass tastes clean. Optional remineralization stages add back the minerals that make water taste great.
RO Solutions for Every Home
From standard under-sink units to whole-home systems, we install and service them all.
Whole-Home RO
Larger systems that filter every drop coming into your house. Great for homes with serious water quality issues.
- Filters whole house
- Higher GPD output
- Custom-sized to home
Filter Service & Repair
RO systems need new filters yearly and a new membrane every few years. We handle the schedule.
- Annual filter changes
- Membrane replacement
- All brands serviced
From Quote to Clean Water
We make installs and service visits simple.
- 01
Water Test
We test your water so we know exactly what the system needs to handle and which stages you actually need.
- 02
Quote
Flat-rate pricing on system, install, and ongoing filter replacements so there are no surprises later.
- 03
Install
Clean install under the sink or in the garage, with proper drain saddle, shutoff, and faucet.
- 04
Test & Train
We test TDS at the faucet, show you the maintenance schedule, and set you up on filter service if you want.
Real Water Treatment Pros
We install RO systems weekly across the East Valley. We know what works here.
Meet the family behind Water ProsSame-Day Service
Most jobs handled the same day you call.
Licensed & Insured
Fully licensed in Arizona. AZ ROC #323563.
Stocked Trucks
Most repairs handled in a single visit.
Upfront Pricing
Flat-rate quotes before any work begins.
Fast Response
Quick arrival across the East Valley.
Family Owned
Local family business you can trust.
RO System FAQ
Still have a question? Give us a call and a real person will walk you through it.
Call (480) 459-4424Do I need RO if I already have a softener?
A softener removes hardness but leaves dissolved solids, chlorine, and other contaminants. RO is what most homes add for actual drinking water quality.
How often do RO filters need changing?
Sediment and carbon filters every 6 to 12 months. The membrane lasts 2 to 5 years depending on usage and water quality.
How much water does RO waste?
Older systems wasted 3 to 4 gallons per gallon produced. Newer high-efficiency systems are closer to 1 to 1.
Is RO water safe to drink long term?
Yes. If you're concerned about lost minerals, we can add a remineralization stage that puts calcium and magnesium back in.
Can RO water be plumbed to the fridge?
Absolutely. We commonly run a line to the fridge so ice and the dispenser run on RO water.
What's the cost of an RO system?
Most under-sink installs run a few hundred to about a thousand depending on system. We give a flat quote before any work begins.
Want Better Drinking Water?
Skip the bottled water and get clean RO water at your sink. Schedule online or give us a call.