Desert Water Plumbing and Rooter
★★★★★ 5.0 stars, over 1,500 Google reviews

Clean drinking water at the kitchen sink.
Installed.

$985

Regular $1,250. Online special $985 through October 31, 2026.

Pentair 5-stage reverse osmosis system

We install a 5-stage RO system built around a Pentair membrane, not the cheaper knockoffs. We mean it: the others are noisy and inefficient.

Cheaper models can run from $785, but not through us. We still have to warranty what we install, and RO leaks cause a lot of damage. That’s why every install includes a leak tray, included in the price, for our protection and yours.

5-year manufacturer warranty on the RO system, plus our 2-year workmanship warranty.

OR ADD ALKALINE · 6-STAGE
$1,250 installed
Regular $1,500 · adds healthy minerals back, balanced pH
Compare both

5-stage, high-efficiency 1:1 reverse osmosis system, installed by a Desert Water plumber, with your choice of faucet: matte black, chrome or brushed nickel. Tax and card fees included. No hidden fees, no upsell.

THIS PRICE ENDS OCTOBER 31, 2026

Mention this special on your first call. Specials must be announced on the first call to apply.

Reverse osmosis system installed under a kitchen sinkKitchen faucet installed by Desert WaterSoftener and brine tank installed by Desert Water
Chase Bradshaw tries his new Desert Water RO system

Chase Bradshaw (Chase Visionz) tries his new Desert Water RO system

Pick your system

5-STAGE RO

Clean drinking water

$985
Regular $1,250 · online special
  • Sediment, 2 carbon, RO membrane, coconut carbon
  • High-efficiency 1:1
  • Your choice of faucet finish
Call 602-699-4401
ADD ALKALINE
6-STAGE RO + ALKALINE

Adds healthy minerals back

$1,250
Regular $1,500 · online special
  • Everything in the 5-stage system
  • 6th stage: alkaline remineralization
  • Balanced pH and better taste
Call 602-699-4401

Watch: water filtration done right

Water Filtration Done Right video

Water Filtration Done Right · 0:37 · Desert Water Plumbing on YouTube

Why a 1:1 RO system

Less water down the drain

Older RO systems send several gallons down the drain for every gallon you drink. A high-efficiency 1:1 system wastes about one gallon for every gallon of clean water.

5 stages

1. Sediment filter · 2–3. Two carbon filters · 4. RO membrane · 5. Coconut carbon filter for a clean finish. Want a 6th? Add the alkaline stage. Better-tasting water for drinking, coffee, ice and cooking.

Your choice of faucet

Included: a dedicated drinking water faucet at your kitchen sink in matte black, chrome or brushed nickel. Other colors available too.

Pick your faucet. It’s included.

Your RO comes with a dedicated drinking water faucet in your choice of finish, so it matches your kitchen.

Matte black drinking water faucetMatte black
Chrome drinking water faucetChrome
Brushed nickel drinking water faucetBrushed nickel
+Other colors

Other colors are available. Ask when you book.

What upkeep costs. Up front.

We publish our maintenance prices so you know what owning it costs before you buy.

RO filter change

$265
  • New sediment filter, 2 carbon filters and coconut carbon filter
  • Done by a Desert Water plumber
  • We check for leaks and test the system

Filter change + new membrane

$395
  • Everything in the filter change
  • Plus a new RO membrane
  • Brings the system back to like-new

Our trucks, our crew

Desert Water Plumbing trucks and vans
Desert Water truck at a customer homeReverse osmosis system installed under a kitchen sink

Why people pick Desert Water

Over 1,500 five-star reviews

5.0 on Google from over 1,500 of our neighbors. Read them before you call.

Real prices up front

The install price and the upkeep prices are on this page. No surprise bill at the end.

Local and family-owned

Shops in Peoria, Cave Creek and North Phoenix. Our own plumbers, AZ ROC #259601, and we back our work for 2 years.

We check your water pressure

We always check your water pressure and tell you what we find. High pressure is hard on softeners and RO systems and changes what we can warranty, so if you need a pressure regulator we quote it on site. We stock them on every truck and warranty the work.

Questions we get every day

Is $985 really installed?

Yes, for a standard install under the kitchen sink. Tax and card fees are included. If your sink needs extra work, we price it before we start.

How long does the price last?

Through October 31, 2026.

What does upkeep cost?

A filter change is $265. A filter change with a new membrane is $395.

Can I add alkaline water?

Yes. The alkaline option adds a 6th stage after the RO. The 6-stage system with alkaline is $1,250 with the online special (regular $1,500).

Do I need a softener too?

Not always. We’ll test your TDS, chlorine and hardness for free and tell you straight. A lot of customers pair RO at the sink with a softener for the whole house.

Is the water test really free?

Yes. We test your TDS (total dissolved solids), chlorine and hardness for free. On a well? A full well water lab test is $485.

Do you have financing?

Yes. 0% APR for 12 months through Wisetack, on approved credit.

Contact us

Fill out the form and we’ll call you to set a time. Prefer to talk? Call the number above.

Brands we specialize in

Rheem logoNavien logoDelta logoMoen logoKohler logoGrundfos logoLochinvar logoBradford White logoPentair logoClack logo

Got another quote?

Got a quote from another company but you’d rather use us? Give us a call and we’ll work with you. We can’t move much, but we’ll sure try. Second opinions are always free.

Seeing a price that seems too low? Some companies use loss leaders, a cheap price to get in the door. Some prices only make sense when nobody’s in the office and nobody answers the phone. With us, a live person answers, and you can text us too.

Where we work

Peoria, Cave Creek, Scottsdale, Paradise Valley and nearby North Phoenix. Sun City and Sun City West: we’re a PORA member, and our pricing is on the transparent pricing page. Not sure we cover you? Call and ask.

Peoria and the West Valley

Peoria and the West Valley

Our home base. Most calls here are same-day or next-day.

Cave Creek and Carefree

Cave Creek and Carefree

Water heaters, softeners and leaks up the hill.

  • Cave Creek
  • Carefree
  • Desert Mountain
  • North Phoenix
  • Anthem
  • New River
  • Desert Hills
Scottsdale and Paradise Valley

Scottsdale and Paradise Valley

Same crew, same upfront pricing.

  • Scottsdale
  • Paradise Valley
  • North Scottsdale
  • DC Ranch
  • Grayhawk
  • Troon
  • Pinnacle Peak
  • McDowell Mountain Ranch
  • Silverleaf
  • Kierland
  • Gainey Ranch
  • McCormick Ranch
  • Dynamite

All our specials

Bradford White tank water heaterWater heater special.

Replaced and installed, one price.

$1,950Regularly $2,250. Save $300 through October 31, 2026. After 5 PM and on Sundays the price is $2,250.Tap for details

Made-in-the-USA Bradford White 50-gallon gas (RG250T6N) or 50-gallon electric (RE250T6-1NCWW), the two heaters we keep in stock, installed by a Desert Water plumber. Haul-away, drain pan, new lines and valve are in the price.

See the $1,950 water heater special
Hero, Advanced and Encore Reveal water softeners$200 OFF

Any water softener or salt-free conditioner, installed.

$1,650Advanced series 48K installed. Normally $1,850.Tap for details

We’re trying something new: Advanced series 48K softener installed, $1,650 through October 31, 2026. You need a serviceable loop for this price. Any upgrades are extra and at the customer’s discretion. Limited lifetime manufacturer warranty on the tanks, resin and valve body, 10 years on all other parts including electronics (Wood Brothers Industries), plus our 2-year workmanship warranty. Subject to manufacturer terms.

See the $200 off softener special
Pentair 5-stage reverse osmosis systemOnline special

Clean drinking water at the kitchen sink.

$985Installed. Regular $1,250. Online special $985 through October 31, 2026.Tap for details

5-stage, high-efficiency 1:1 reverse osmosis system, installed by a Desert Water plumber, with your choice of faucet: matte black, chrome or brushed nickel. We install a 5-stage RO system built around a Pentair membrane, not the cheaper knockoffs. 5-year manufacturer warranty on the RO system, plus our 2-year workmanship warranty.

See the $985 RO special
Kohler Highline two-piece elongated toilet

Toilet installs

From $265Kohler Highline supplied and installed: $685.Tap for details

Toilet installs start at $265, and the fancier the toilet, the more it costs. We’ve installed some for over $1,000. We’ll supply a Kohler Highline toilet with delivery, haul-away and everything else for $685. A Toto is $1,385. Or we can quote installing the toilet you already have. We warranty our work either way, and we only warranty the parts when we supply them.

See toilets, faucets and shower valves
Delta kitchen faucets in matte black and champagne bronze

Faucet swaps

$265 to $365Quoted by phone.Tap for details

$265 to $365 for most standard faucets, quoted by phone. Fancy or cut-out faucets get a written bid, because the work changes. A cluttered or dirty work area adds time, and we say so up front.

See toilets, faucets and shower valves
Delta R22000 shower valve and Moen 1222 cartridge

Shower and tub cartridges

$385 to $685Usually somewhere in the middle.Tap for details

Most standard shower and tub cartridges replaced by a professional run $385 to $685, usually somewhere in the middle. We quote on site because the valve, the brand and what’s behind the wall change the job. If the cartridge can’t be fixed, we can usually put in a new valve with standard trim for $785 to $1,250. Fancier trim is available, but it’s hard to quote online. We keep the common Delta, Moen and Pfister cartridges on our trucks and in our warehouse. Part of the price is being ready for the call and having the right parts on the truck when it matters most. We can special order just about anything fancy. If it isn’t one of those, expect a bid for the follow-up visit. Same-day isn’t realistic without a lot of driving around and extra cost, and that’s negotiable on site. We work on Delta 1300, 1400 and 1700 series valves, Moen 1222 and 1255 cartridges, Pfister Avante, Kohler and Symmons, including thermostatic and volume-control valves.

See toilets, faucets and shower valves

Better water at the sink for $985.

5.0 stars, over 1,500 Google reviews. Price ends October 31, 2026.

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